AOR USA AR8200MK3B Wide Band Scanning Receiver User Manual 8200m 1 50

AOR USA Inc. Wide Band Scanning Receiver 8200m 1 50

Contents

Part 1

1(1) AR8200 Index(1) Index ............................................................................................................................ 11-1 Introduction .................................................................................................................. 51-2 Take care of your radio ................................................................................................ 51-3 Attention while operating ............................................................................................. 61-4 Accessories supplied ................................................................................................... 71-5 Controls & functions .....................................................................................................81-5-1 Keypad ..................................................................................................................... 91-5-2 Summary of keys ...................................................................................................... 101-5-3 Side panel ................................................................................................................. 151-6 Power supply and battery charging ............................................................................. 161-6-1 Internal batteries ....................................................................................................... 161-6-2 Charging the NiCads ................................................................................................ 181-6-3 Cigar lighter lead ...................................................................................................... 181-6-4 Battery considerations .............................................................................................. 19(2) Making the AR8200 ready for operation ................................................................... 202-1 LCD (Liquid Crystal Display) ....................................................................................... 202-2 Connect the aerial (antenna) ....................................................................................... 212-3 Fit the batteries ............................................................................................................ 212-4 Keypad and knobs... what you need to know ‘most’ .................................................... 222-4-1 ENTER key ............................................................................................................... 222-4-2 FUNCTION key ......................................................................................................... 222-4-3 PASS key .................................................................................................................. 222-4-4 CLEAR key ............................................................................................................... 232-4-5 MONITOR key .......................................................................................................... 232-4-6 KEY lock ................................................................................................................... 23(3) Basic manual operation of the receiver .................................................................... 243-1 Switching On ............................................................................................................... 243-2 2VFO twin VFO selection ............................................................................................ 243-3 Entering a frequency using the numeric keypad ......................................................... 263-4 Correcting frequency input .......................................................................................... 273-5 Changing frequency using the ñ and ò keys .............................................................. 283-6 Changing frequency using the main dial ..................................................................... 283-7 Changing receive mode ............................................................................................... 293-7-1 Auto-mode selection ................................................................................................. 293-7-2 Receive mode selection menu ................................................................................. 293-8 Changing tuning STEP size ......................................................................................... 313-9 STEP-adjust ................................................................................................................ 333-9-1 Automatic calculation of step adjust ......................................................................... 333-9-2 Cancelling step adjust .............................................................................................. 343-9-3 Manual setting of step adjust .................................................................................... 343-10 FREQUENCY OFFSET .............................................................................................. 363-10-1 Using pre-programmed frequency offset data ........................................................ 363-10-2 Entering new frequency offset data ........................................................................ 373-11 Attenuator .................................................................................................................. 383-12 Noise limiter ............................................................................................................... 383-13 AFC - Automatic Frequency Control .......................................................................... 39(4) VFO enhanced facilities ............................................................................................. 414-1 Quick memories ...........................................................................................................414-1-1 Saving quick memory data ....................................................................................... 414-1-2 Recalling quick memories ........................................................................................ 424-2 VFO scan .................................................................................................................... 424-2-1 VFO SCAN sampling time ........................................................................................ 434-3 VFO Search ................................................................................................................. 434-3-1 Defining VFO search ................................................................................................ 43Section 1
24-3-2 Starting VFO search ................................................................................................. 434-3-3 Forcing VFO search to resume & changing search direction ................................... 444-3-4 Locking out unwanted frequencies (PASS) .............................................................. 444-3-5 Saving active frequencies to memory ...................................................................... 454-3-6 Exiting VFO search .................................................................................................. 464-4 VFO environment menu .............................................................................................. 464-4-1 VFO SCAN ...............................................................................................................464-4-2 VFO search DELAY environment ............................................................................. 464-4-3 VFO search LEVEL squelch environment ................................................................ 474-4-4 VFO search VOICE squelch environment ................................................................ 484-4-5 VFO FREE search environment ............................................................................... 484-4-6 VFO AUTO STORE environment ............................................................................. 494-4-7 VFO DELETE bank “J” environment ......................................................................... 494-4-8 VFO QUICK MEMORY environment ........................................................................ 50(5) Memory channels & banks ........................................................................................ 515-1 Memory channel overview ........................................................................................... 515-2 Storing VFO frequencies & data into memory ............................................................. 525-2-1 Another example of memory write ............................................................................ 545-2-2 Automatic memory allocation ................................................................................... 555-3 Memory write protect ................................................................................................... 555-4 Memory read “M.RD” ................................................................................................... 565-4-1 Memory channel review / hunt ................................................................................. 575-5 Deleting memory channels .......................................................................................... 575-5-1 Memory channel editing ........................................................................................... 585-5-2 Adding text names to memory banks ....................................................................... 585-6 Transfer of memory channel to VFO ........................................................................... 585-7 Dynamic memory bank resizing .................................................................................. 58(6) Priority operation ........................................................................................................ 596-1 Engaging PRIORITY channel ...................................................................................... 606-2 Changing PRIORITY channel data .............................................................................. 606-2-1 Changing the priority channel data pickup channel .................................................. 616-2-2 Changing priority interval time .................................................................................. 61(7) SCAN - scanning memory channels & banks .......................................................... 627-1 SCAN - outline introduction ......................................................................................... 627-2 SCAN considerations .................................................................................................. 627-3 Starting to SCAN .........................................................................................................637-3-1 Transfer of active memory to VFO ........................................................................... 647-4 Selecting a scan bank ................................................................................................. 647-5 Channel PASS .............................................................................................................647-5-1 Toggling memory channel PASS .............................................................................. 657-5-2 Removing ALL memory PASS tags in one go .......................................................... 657-6 Deleting memory channels .......................................................................................... 667-6-1 Deleting single memory channels ............................................................................ 667-6-2 Deleting whole memory banks in one go .................................................................. 667-7 Scan bank link (scan group) ........................................................................................ 667-8 Additional scan facilities ...............................................................................................677-8-1 Scan DELAY .............................................................................................................687-8-2 Scan LEVEL .............................................................................................................687-8-3 Scan VOICE .............................................................................................................697-8-4 Scan FREE ............................................................................................................... 707-8-5 Scan (receive) MODE .............................................................................................. 707-8-6 Write protect of memory channels & banks .............................................................. 717-9 Select scan .................................................................................................................. 717-9-1 Adding select scan channels in memory read .......................................................... 717-9-2 Starting / stopping select scan ................................................................................ 717-9-3 Select scan environment .......................................................................................... 72
37-9-4 Editing the contents of the select scan list ............................................................... 727-9-5 Deleting all select scan channels ............................................................................. 73(8) Search mode ............................................................................................................... 748-1 Search types ................................................................................................................ 748-1-1 Program search overview ......................................................................................... 748-2 Starting program search .............................................................................................. 758-2-1 Reversing the direction of search ............................................................................. 758-2-2 Forcing the search to resume ................................................................................... 758-2-3 Stopping the search ................................................................................................. 758-2-4 Copying an active frequency to the VFO or memory location .................................. 768-3 Selection of search bank ............................................................................................. 768-4 Programming a search bank ....................................................................................... 788-5 Locking out unwanted active frequencies (PASS) ...................................................... 808-5-1 Search pass menu ................................................................................................... 808-6 Search bank link .......................................................................................................... 818-7 Additional search facilities ........................................................................................... 828-7-1 Search DELAY ......................................................................................................... 838-7-2 Search LEVEL .......................................................................................................... 848-7-3 Search VOICE .......................................................................................................... 848-7-4 Search FREE ............................................................................................................858-7-5 AUTO STORE .......................................................................................................... 868-7-6 DELETE bank “J” ..................................................................................................... 868-7-7 Deleting search banks .............................................................................................. 878-7-8 Write protect and copying search banks .................................................................. 87(9) EDIT menu ................................................................................................................... 889-1 EDIT COPY memory channel ...................................................................................... 889-2 EDIT COPY memory bank ........................................................................................... 899-3 EDIT COPY search bank ............................................................................................. 909-4 EDIT MOVE memory channel ...................................................................................... 909-5 EDIT SWAP memory channel ..................................................................................... 919-6 EDIT memory channel ................................................................................................. 929-7 EDIT Search protect .................................................................................................... 93(10) DELETE menu facilities ............................................................................................ 9410-1 DELETE search banks and search PASS frequencies ............................................. 9410-2 DELETE VFO PASS .................................................................................................. 9510-3 DELETE memory bank .............................................................................................. 9510-4 DELETE select scan channels .................................................................................. 9610-5 DELETE memory channel protect ............................................................................. 9610-6 DELETE memory channel pass ................................................................................ 97(11) Write protect ............................................................................................................. 9811-1 Memory CHANNEL write protect ............................................................................... 9811-2 Write protect during memory input ............................................................................ 9811-3 Channel protect status for existing memory channels ............................................... 9811-4 Channel protect delete ............................................................................................... 9911-5 Memory BANK write protect ...................................................................................... 9911-6 Search bank write protect .......................................................................................... 10011-7 Global write protect .................................................................................................... 100(12) TEXT search and input ............................................................................................. 10112-1 Text input menus ....................................................................................................... 10112-2 Text search ................................................................................................................ 102(13) SHORT CUT keys ...................................................................................................... 10313-1 Short cut menu access .............................................................................................. 10313-2 Short cut text entry .................................................................................................... 10413-3 Short cut text entry, keypad with ïðñò keys .......................................................... 105
4(14) Configuration menu ................................................................................................. 10614-1 CONFIG BEEP .......................................................................................................... 10614-2 CONFIG LAMP .......................................................................................................... 10614-3 CONFIG CONTRAST ................................................................................................ 10714-4 CONFIG Power save ................................................................................................. 10814-5 CONFIG Auto power off ............................................................................................. 10914-6 CONFIG REMOTE BPS ............................................................................................. 10914-7 CONFIG FREQ DISP ................................................................................................. 11014-8 CONFIG GLOBAL write protect ................................................................................. 11014-9 CONFIG Opening message ...................................................................................... 111(15) Band scope ............................................................................................................... 11215-1 Starting the band scope ............................................................................................. 11215-2 Exit from band scope ................................................................................................. 11315-3 Setting frequency span width (waveform enlargement) ............................................ 11315-4 Moving the marker ..................................................................................................... 11315-5 Marker to strongest signal (peak search) .................................................................. 11315-6 Entering a new centre frequency ............................................................................... 11415-7 Transfer of marker frequency to VFO ........................................................................ 11415-8 Peak hold ................................................................................................................... 11415-9 Saving active trace to memory .................................................................................. 11415-10 Loading stored band scope traces from memory .................................................... 115(16) Sleep .......................................................................................................................... 116(17) Option socket ............................................................................................................ 11717-1 RS232 operation ........................................................................................................ 11817-2 CLONE of data via the option socket ......................................................................... 11817-2-1 How to clone data ................................................................................................... 119(18) Slot card socket ........................................................................................................ 12118-1 Optional slot cards ..................................................................................................... 12118-1-1 Fitting the slot card ................................................................................................. 12118-1-2 Removing the slot card ........................................................................................... 12218-2 VI8200 optional voice inverter slot card ..................................................................... 12218-3 CT8200 optional CTCSS slot card ............................................................................. 12318-3-1 CTCSS tone squelch .............................................................................................. 12318-3-2 CTCSS search ........................................................................................................ 12418-4 TE8200 optional tone eliminator slot card ................................................................. 12518-5 RU8200 optional record & playback slot card ............................................................ 12618-5-1 Recording ............................................................................................................... 12618-5-2 Playback ................................................................................................................. 12718-6 EM8200 optional external extended memory slot card .............................................. 12718-6-1 Initialising (formatting) the EM8200 before use ...................................................... 12818-6-2 EM8200 ALL-DATA save and load ......................................................................... 12918-6-3 EM8200 ALL-MEM save and load .......................................................................... 13018-6-4 EM8200 MEMORY BANK save and load ............................................................... 13118-6-5 EM8200 ALL-SRCH save and load ........................................................................ 13218-6-6 EM8200 SEARCH BANK save and load ................................................................ 13218-6-7 EM8200 internally stored band scope save and load .............................................. 133(19) Trouble shooting ....................................................................................................... 13619-1 Soft reset of microprocessor ...................................................................................... 13619-2 Other trouble shooting suggestions ........................................................................... 13619-3 Trouble shooting - Take note of the following ............................................................ 137(20) Optional accessories ................................................................................................ 138(21) Aerial (antenna), earths & propagation ................................................................... 139(22) Specification ............................................................................................................. 140
51-1 IntroductionThank you for purchasing the AR8200 hand held wide band all mode receiver. The AR8200 is designedusing the very latest technology to ensure the highest levels of performance and reliability. To get thebest possible results from your AR8200 we recommend that you read this manual and familiariseyourself with the receiver. Although carefully designed, this receiver (like all receivers) suffers from adegree of internal noises known as spurii. They are a product of the receiver’s circuitry and do notrepresent a fault. Apparent faults may be due to accidental misoperation of the receiver, if you thinkthere is a problem, carefully read all of the manual before deciding to contact your equipment supplier foradvice.It is acknowledged that sections of this manual are repetitive, this is to enable the manual to be used asa reference book (you don’t have to read it all from cover to cover in one go). Due to the internationalnature of the product, some graphics contain Japanese characters.Every effort has been made to make this manual correct and up to date. Due to continuousdevelopment of the receiver and by error or omission anomalies may be found and this isacknowledged.© This manual is protected by copyright AOR Ltd 1998. No information contained in this manual may becopied or transferred by any means without the prior written consent of AOR Ltd. AOR and the AORlogo are trade marks of AOR Ltd. All other trade marks and names are acknowledged. E&OE1-2 Take care of your radioThere are no internal operator adjustments. In the unlikely event of servicing being required, pleasecontact your dealer for technical assistance.Do not use or leave the receiver in direct sunlight (especially the LCD). It is best to avoid locationswhere excessive heat, humidity, dust and vibration are expected. Always keep the AR8200 free fromdust and moisture. Use a soft, dry cloth to gently wipe the set clean, never use abrasive cleaners ororganic solvents which may damage certain parts. Treat the AR8200 with care, avoid spillage or leakageof liquids into the receiver and a.c. charger. Special care should be taken to avoid liquid entering aroundthe controls, through the speaker grille or via the connection jacks.The AR8200 is designed for operation from internal batteries or from its supplied a.c.-to-d.c. charger.Operation is possible from any good quality regulated d.c. supply of 12 to 14V, which should be capableof supplying 300mA. Never connect the AR8200 directly to the a.c. supply.The d.c. input socket uses a mini 1.3mm power connector. This connector is configured CENTREPOSITIVE, the chassis of the receiver is at negative ground. The charger supplied is pre-wired andprovides a nominal 12V d.c. output with suitable connectors being fitted as standard for the a.c. powerinput and connection to the AR8200. SAFETY NOTICE - Always disconnect the charger from the a.c. socket when not in use.If using the AR8200 in a base station situation, the best short wave reception is usually achieved by thefitting of a separate external earth rod, however consider the implications carefully if your a.c. buildingsupply uses a Protective Multiple Earth (PME) system. If in doubt consult an expert electrician. Neverearth to a gas pipe!The AR8200 has a single BNC aerial socket for all frequencies. This is intended for connection to itssupplied whip aerial or a 50 OHM (unbalanced) coaxial fed aerial such as a discone, dipole, unipole,yagis etc. When sighting the aerial, avoid power cables.Section 1-1, 1-2
6Operating anomaliesShould the AR8200 appear to behave strangely, normal operation may be easily achieved by resettingthe microprocessor. Two scenarios may be encountered due to power transients etc:1.Symptom: LCD remains on, no control of the keypad.Action: Remove any connection to external power such as the charger or cigar lead,remove one NiCad battery and count to thirty! Re-fit the battery and press the powerswitch again. Normal operation should be restored but the last used frequency will belost, the AR8200 will restore the last but one frequency to display.2. Symptom: The AR8200 fails to power up.Action: Try the suggestion given in (1) then hold the key while powering upthe AR8200 to ‘Soft reset’ the microprocessor.1-3 Attention while operating1. Certain key operations are acted upon when the key is RELEASED, not while it is pressed. Allowtime for the AR8200 to register such actions before pressing another key.2. The keylock is intentionally made to be difficult to operate to prevent accidental operation.To release keylock, the key has to be held for more than one second, the key legend on theLCD confirms operation. The key is disabled during keying sequences (such as whenentering frequencies).3. If a key sequence is not completed, the microprocessor will automatically abort most operationsafter about 90 seconds of keypad inactivity.4. Currently displayed VFO data is saved at power down (to increase speed of operation and toreduce write cycles). For this reason, if the AR8200 is powered down by removing external supply(without internal batteries in place or when the batteries become exhausted), the last displayedfrequency will be lost and the frequency used prior to this will be displayed when next powered up.Terminology - Search & ScanIf you have not used a wide range monitor before or are not familiar with the terminology used, it is veryimportant to understand the difference between SEARCH and SCAN modes.SEARCH: The AR8200 provides several operations where transmissions (active frequencies) maybe automatically located by sweeping the receiver over a wide frequency range, either from thecurrently displayed frequency travelling upwards (or downwards) in a specified tuning increment(step) or by sweeping over-and-over between two specified frequency limits. This process is knownas SEARCHING, as the title implies, it can take a long time to find transmissions due to their ‘oftenintermittent’ and brief nature. For this reason it is best to slice large frequency ranges into smaller,more manageable pieces where they may be intensively studied. When examining large frequencybands, it is common to find that 90% of frequencies are inactive and only a small number of theremaining constitute what you really want. Searching still remains the best way to initially locateactive and interesting transmissions (in conjunction with a good frequency listing and band plan).SCAN: Once active transmissions have been identified (either by searching or by using a goodfrequency guide), it is more efficient to store the data into memories which can be rapidly andautomatically monitored in succession stopping when activity is encountered. This forms a muchSection 1-2, 1-3
7more efficient means of monitoring the most wanted frequencies as you have targeted 100% whatyou most want to hear, by contrast searching is very inefficient for day-to-day monitoring.&Note: It is very important that the squelch is advanced to cancel background noise for thesearch & scan facilities to operate. This is because the AR8200 believes that it has found anactive frequency when the squelch opens and “S” ‘squelch open’ legend is displayed to the leftof the signal meter. Advance the squelch control clockwise until the background noise is justcancelled, this is known as the threshold position. If the squelch control is advanced too far,weaker signals may be missed.No noise and no “S” legend (with squelch advanced clockwise passedthreshold) = squelch closed.Signal received or ‘noise’ emanating from speaker (squelch fully anti-clockwise, belowthreshold) with no “S” legend = squelch open.1-4 Accessories suppliedThe following items are provided in the carton box:1 x AR8200 receiver1 x Whip aerial in BNC connector1 x Medium Wave (MW) bar aerial4 x AA NiCad batteries1 x Charger (may be supplied in a separate cartons in some world market areas)1 x Cigar adapter lead (containing internal 1A fuse)1 x Hand strap1 x Belt hook with two screws1 x Operating manual (this booklet)How to fit the hand strapThe hand strap anchor is located on the right hand side of theAR8200 cabinet. The hand strap comprises of two loops, onelarge and one small. Feed the small loop through the anchorthen feed the large loop through the small loop and gently pulluntil tight. This strap is designed to be looped over your wristto prevent the AR8200 from contacting the ground ifaccidentally dropped, it is not intended as a hard wearingutility… do not swing the set or abuse the set using thishand strap.The MW bar also has a fixing hole so that you may tie itdown to prevent loss.How to fit the belt hookThe belt hook is a shaped metal plate with two fixing holes on the topedge, two fixing screws are provided. Do not use any other screws…if you attempt to use longer screws, the internal parts may be permanentlydamaged rendering the AR8200 inoperative. Offer the belt hook to the rearof the AR8200, locate and align the fixing holes then carefully fit the twosupplied screws, fit both screws before tightening with a cross-headscrewdriver.Section 1-3, 1-4
81-5 Controls & functionsControls are located on the top, front and left hand side of the AR8200, a brief identificationis given here:1. Rotary volume control2. Rotary squelch control3. BNC aerial socket4. Function key5. Main dial (thumb rotary)6. Key Lock key7. Monitor key8. Arrow keys9. Eject slider for optional SLOT CARD10. LCD (Liquid Crystal Display)11. Keypad12. Loudspeaker13. Lid for optional SLOT CARDSection 1-514. Hand strap anchor15. Earphone / external speaker socket16. External power / charging socket17. Option socket18. Medium Wave (MW) bar aerial19. Battery compartment cover20. Battery compartment release slider
91-5-1 KeypadKeypad conventionsMost keys have multiple functions, their functions are printed on the cabinet. However due therestriction of available size, not all facilities can be shown on the keypad printing. To ease access tothe many facilities, two formats are employed:-Push and release the key quickly to access the required facility. This applies toprimary facilities of keys such as numeric 1, 2, 3 etc. Also for example, quickly the key while in 2VFO mode to toggle between the two VFOs VFO-A and VFO-B.Press and HOLD the key for more than one second to access the secondfunction, sometimes this is in conjunction with the key. Function key manipulationThe key also may be used by PUSH and PRESS depending upon the specificrequirement, in most cases however the key will require a simple PUSH.“FUNC” LCD legend solid= “FUNC” LCD legend flashing= Section 1-5-1
101-5-2 Summary of keysThe main keypad is located on the front cabinet of the AR8200 with other keys located on the lefthand side. When powered from internal batteries with the lamp configured to AUTO, the lamp willautomatically illuminate when keys are pressed and will stay illuminated for five seconds after the lastkey press.An optional CC8200 RS232 lead is required for computer control, the optional CO8200 lead is requiredfor copying data between two AR8200 radios, various optional SLOT CARDS are available which furtherextend the AR8200 facilities (and menus).PUSH this key to place the AR8200 into SEARCH mode, the LCD “SRCH” legend confirms operation. to access the bank link menu where up to ten different selections oflinked search banks may be grouped, this is useful where a large frequency band has been split up intosmaller more manageable sizes for close scrutiny.Additional search related parameters may be set up to optimise each search group independently usingthis menu:-DELAY OFF / HOLD / 0.1s to 9.9s (default = OFF)LEVEL OFF / 1 to 255 (default = OFF)VOICE OFF / 1 to 255 (default = OFF)FREE OFF / 1s to 60s (default = OFF)AUTOSTORE ON / OFF (default = OFF)DELETE J (deletes the current data from bank J)PUSH this key to place the AR8200 into MEMORY READ mode, the LCD legend “M.RD” confirmsselection. again to initiate SCAN, the LCD legend “SCAN” confirms selection to access the bank link menu where up to ten groups of memories maybe selected to be scanned in succession, effectively forming one large scan bank. Additional scanrelated parameters may be set up to optimise each scan group independently using this menu:-DELAY OFF / HOLD / 0.1s to 9.9s (default = OFF)LEVEL OFF / 1 to 255 (default = OFF)VOICE OFF / 1 to 255 (default = OFF)FREE OFF / 1s to 60s (default = OFF)MODE SCAN ALL / WFM / NFM / SFM / WAM / AM/ NAM / USB / LSB / CW (default = ALL) to set the ratio of bank size between memory channels sharing acommon letter in upper and lower case.Section 1-5-2
11PUSH this key to place the AR8200 into 2VFO mode where you may receive spot frequencies and‘generally monitor activity’. The LCD displays two lines of frequency readout, the upper (larger) being thecurrent receive frequency. The LCD legend “2VFO” confirms selection with each VFO being identified as“V-A” and “V-B”. again to toggle between VFO-A “V-A” and VFO-B “V-B”. to initiate VFO search between the two displayed frequency limits set by VFO-A andVFO-B, the legend “V-SR” confirms selection of VFO SEARCH. to access the VFO MODE select menu where the following parametersmay be configured:-VFO SCAN ON / OFF (default = OFF)DELAY OFF / HOLD / 0.1s to 9.9s (default = OFF)LEVEL OFF / 1 to 255 (default = OFF)VOICE OFF / 1 to 255 (default = OFF)FREE OFF / 1s to 60s (default = OFF)AUTOSTORE ON / OFF (default = OFF)DELETE J (deletes the current data from bank J)QUICK MEMORY OFF / 10s to 990s (default = OFF)PRESS this key to switch the AR8200 on and off as a toggle. To prevent accidental switch on and off,the power key is placed between two ridges and has to be held for more than one second for the press tobe registered. The ridges also help location of the power key when operated in areas of low levellighting.PUSH this key to activate the band scope, the , or key to return tonormal operation.&Note: Priority operation is disabled when the band scope facility is in use.Traces will be overwritten as the band scope is written from left to right on the LCD. To build up a longterm activity display, to toggle the PEAK HOLD facility on / off, the LCDlegend “HLD” confirms operation.The key sequence recalls a previously saved band scope trace.PUSH this key to PASS (lockout) memory channels during memory read & scan mode and to PASS(skip) unwanted frequencies in search mode. Also acts as select ON/OFF/DEFAULT toggle in variousmenus.Section 1-5-2
12 in 2VFO mode to access the VFO PASS menu which extends to include theSEARCH bank pass edit menu. in 2VFO, SEARCH or SCAN mode to access the SELECT SCAN editmenu.PUSH to abort entry via the keypad. to select the optional SLOT CARD when fitted. and HOLD the key while powering On the AR8200 to soft reset the microprocessorshould the AR8200 appear to behave strangely... no memory contents will be lost.Numeric figure one during frequency input. Selection of memory/scan bank “A” or “a” and search bank“A” or “a” or “K” or “k”. to toggle the attenuator on / off, the LCD legend “ATT” confirmsoperation. to toggle the noise limiter on / off, the LCD legend “NL” confirmsoperation.Numeric figure two during frequency input. Selection of memory/scan bank “B” or “b” and search bank“B” or “b” or “L” or “l”. to access the tuning STEP size (increment) menu.Numeric figure three during frequency input. Selection of memory/scan bank “C” or “c” and search bank“C” or “c” or “M” or “m”. to access the receive mode selection menu. to select AUTO-MODE where the receiver mode and tuning step areautomatically selected by the AR8200 microprocessor from the pre-programmed band plan data (this isa short cut to save using the receive mode menu). The LCD legend “AUT” confirms that auto-mode isin operation.Section 1-5-2
13Numeric figure four during frequency input. Selection of memory/scan bank “D” or “d” and search bank“D” or “d” or “N” or “n”. toggles the priority facility on/off (assuming that one has already beenassigned using the priority menu). The LCD legend “PRI” confirms when priority has been selected. to access the priority menu where the data from a memory channel maybe assigned for priority use. The interval sampling time may also be specified.Numeric figure five during frequency input. Selection of memory/scan bank “E” or “e” and search bank“E” or “e” or “O” or “o”. to initiate select scan (assuming that more than one memory channelhas already been tagged for select scan). The LCD legend “SEL” indicates when select scan is active. or or to exit select scan.Numeric figure six during frequency input. Selection of memory/scan bank “F” or “f” and search bank “F”or “f” or “P” or “p”. to access the program search menu where upper / lower frequencylimits etc for search mode may be entered.Numeric figure seven during frequency input. Selection of memory/scan bank “G” or “g” and search bank“G” or “g” or “Q” or “q”. to access the configuration menu where the beep, lamp, LCD contrast,RS232 etc. may be configured.Numeric figure eight during frequency input. Selection of memory/scan bank “H” or “h” and search bank“H” or “h” or “R” or “r”. to access the edit menu when memory channels and search banks maybe amended and copy protection configured.Section 1-5-2
14Numeric figure nine during frequency input. Selection of memory/scan bank “I” or “i” and search bank “I”or “i” or “S” or “s”. will delete the currently displayed memory channel during memory reador scan. accesses the delete menu where search banks, VFO pass frequencies,memory banks, select channel tags, channel protect status & memory pass tags may be deleted.Numeric figure zero during frequency input. Selection of memory/scan bank “J” or “j” and search bank“J” or “j” or “T” or “t”. to toggle the AFC (Automatic Frequency Control) facility on/off, the LCDlegend “AFC” confirms selection. to access the clone (copy between radio) menu.Numeric decimal during MHz format frequency input. Used in memory and search as a CASE SHIFTkey to toggle between UPPER and LOWER case banks. to access the frequency offset menu. to access the sleep timer menu.Used as an ENTER key to accept data entry. during VFO operation to write the current frequency to QUICK MEMORY where thekey sequence ð recalls quick memory. The ïð keys may be used to cyclethrough the quick memories, the LCD legend “«” indicates when a quick memory has been recalled. to enter the current frequency in to one of the 1,000 memory channels. to access the text search menu.Section 1-5-2
151-5-3 Side panelThe left hand side of the AR8200 comprises of three push keys, a nest of fourarrow keys and a rotary main dial. An eject slider is also provided to release theoptional SLOT CARD.FUNCTION KEY The function (shift) key is used to select the second function of keypad facilities. to toggle the function status on/off. A solid reverse legend LCD“FUNC” indicates when function shift is in operation. The function status isterminated automatically in the normal course of entry. to initiate double-shift which is used in certain menus as a short-cut. The reverse“FUNC” legend flashes when double-shift is engaged.&Note: When the “FUNC” legend is displayed in VFO mode, the tuning speed will beincreased to assist rapid frequency change using the arrow keys and main dial.The KEY LOCK is intentionally small to reduce the chances of accidental operation. Key lock is usefulwhen you do not wish an important frequency to be lost or the AR8200 to be incorrectly set to a differentfrequency. The key lock status is not deactivated by switch off / on, the and keys arenot affected by key lock. to toggle the key lock on /off, an LCD key symbol “ ” indicates status.The MONITOR key is used to force the squelch open so that you may manually intervene to ensure thatno weak signals are missed. and hold the key to defeat the squelch control (savesturning the squelch control fully anti-clockwise then back to threshold position).When the “DUP” legend is displayed during frequency offset or VFO SCAN (DUPLEX) operation, the key forces the AR8200 to switch to the alternative frequency.In SCOPE mode, the key enables the reception of the marker frequency.MAIN DIALThis recessed rotary control is intended to be scrolled up and down using the thumb of your left hand(although you may adjust it using the middle finger of your right hand etc). Primarily this is the tuningcontrol, upward rotation tunes the AR8200 upward in frequency and downward rotation tunes downwardin frequency using the selected tuning step size. When the “FUNC” legend is displayed, the tuningspeed will be increased. The main dial is also used to move between menus and manipulate inputthrough menus (generally mimicking the arrow keys).&Note: The main dial also has a switch capability, this is why the main dial has lateralmovement. However, this switch capability is not used by the AR8200.Section 1-5-3
16ARROW KEYSThe arrow keys ïðñò are laid out as a group of four keys (up, down, leftand right). This format is particularly convenient when used with the thumb ofthe left hand (although you may use it with the middle finger of your right handetc) for navigation through on-screen menus.ðThe right arrow key is used as a backspace when entering frequency via thekeypad. Also selects bank in memory read mode, moves the cursor position(especially during text input), tunes the receiver and changes values inmenus.ïThe left arrow key selects bank in memory read mode, moves the cursorposition (especially during text input), tunes the receiver and changesvalues in menus.ñThe up arrow key increments to next memory channel in memory readmode, tunes the receiver in VFO mode, selects menu items, changesvalues in on-screen menus and forces scan & search to resume whenstopped on a busy channel.òThe down arrow key increments memory channel in memory read mode, tunes the receiver in VFOmode, selects menu items, changes values in on-screen menus and forces scan & search to resumewhen stopped on a busy channel.&Note: It is possible to push two of the arrow keys at the same time (in error) by usingdiagonal force, ensure that the arrow keys are operated cleanly and one at a time.1-6 Power supply and battery chargingThe AR8200 is designed for operation from internal batteries or from its supplied a.c.-to-d.c. charger.Operation is possible from another good quality regulated d.c. supply of 12 to 14V, which should becapable of supplying 300mA. Never connect the AR8200 directly to the a.c. supply.The d.c. input socket uses a mini 1.3mm power connector. This connector is configured CENTREPOSITIVE, the chassis of the receiver is at negative ground. The charger supplied is pre-wired andprovides a nominal 12V d.c. output with suitable connectors being fitted as standard for the a.c. powerinput and connection to the AR8200.SAFETY NOTICE - Always disconnect the charger from the a.c. socket when not in use.If you are not going to use the AR8200 on batteries for a while, remove the batteries from the radio(to prevent dry cells leaking) and charge NiCads before placing them into storage.1-6-1 Internal batteriesThe AR8200 is supplied with four AA size NiCad rechargeable batteries. These batteries are notcharged at the factory before shipping, so you will need to charge them before use.Section 1-5-3, 1-6, 1-6-1
17Dry cells such as Alkaline or Zinc / Manganese may be used but cannot be charged inside theAR8200, if dry cells are fitted to the AR8200, remove dry cells before using the cigar lead orconnecting the charger or external power.The AR8200 charging circuit is not designed to recharge dry cells or NiMHi batteries, if these are to berecharged, they must be removed from the AR8200 and charged in a specialist external chargerfollowing the manufacturers recommendations.Fitting batteriesThe battery compartment is located on the rear cabinet of the AR8200. A hinge is located at the bottomedge with a ‘locking mechanism’ on the top edge of the compartment cover. To release the batterycompartment locking mechanism, slide the release upward (using a thumb is the best method) then liftthe compartment using a rotating action (using the thumb and forefinger of the other hand). Do not useexcessive force, the cover is completely detachable.Insert the four NiCads supplied (or alternative AA sized batteries) observing the correct polarity(head to toe positive / negative). Refit the battery compartment cover into the closed position.&Note: Always switch the AR8200 off before fitting / removing batteries or whenconnecting / disconnecting external power.Section 1-6-1
181-6-2 Charging the NiCadsIt is possible to charge the supplied NiCadbatteries while still fitted inside the AR8200using the charging unit provided. Switch offthe AR8200 then connect the plug from thecharging unit to the 12V d.c. input socket onthe right hand side of the AR8200 cabinet.Connect the charger to the a.c. supply andswitch the power to the charger on.When fully discharged, the NiCad batterieswill take 12 hours to fully charge while theAR8200 is switched off. It is possible to chargethe AR8200 while the radio is switched on and being used, however the charging cycle will take longer(16 hours is typical) and a degree of hum superimposed on reception may be encountered as thecharger is not regulated.The AR8200 will provide around 4 hours of continuous operation with one third volume and constantreception. The operational time between charges will be dependant upon volume level and operatingparameters, the power save facility will also extend operating time.If connected to an external power supply, the AR8200 many be used for continuous operation.When the NiCads near discharge, three states will be encountered:-1. A battery symbol will appear in the extreme top right of the LCD a couple of minutes before theNiCads completely discharge. The operational cut-off point is difficult to determine making advancewarning brief. The legend will have one diagonal bar representing minimal charge left.2. The LCD battery legend will become an empty outline... operation will cease almost immediately.3. The NiCads will expire and the set will power off (the VFO frequencies and last stored memorymay be lost). Connect the charger to continue operation or replace the exhausted cells.1-6-3 Cigar lighter leadIt is possible to use the supplied cigar lead to charge the AR8200 NiCads and to powerthe radio in exactly the same manner as the a.c. charger (except that it is connected toa vehicle 12V d.c. supply). Ensure that the vehicle has a 12V d.c. battery, do notconnect to a truck / H.G.V. 24V battery.The tip on the cigar plug is positive (+), the vehicle must be negative ground. A 1Afuse is fitted inside the cigar lead, should this fuse blow for some reason, ensure it isreplaced with the correct type. Avoid short circuits.Switch off the AR8200, connect the cigar lead to theAR8200 12V d.c. input socket THEN connect thecigar plug to the vehicle and switch the AR8200 on.Section 1-6-2, 1-6-3
19It is advisable to switch the AR8200 off when starting the vehicle as the starter motor often causespower surges. Some vehicles require their ignition to be ON for the cigar socket to operate.1-6-4 Battery considerationsThe supplied NiCads are not factory charged. Fit them to the AR8200 and charge for about 12 hours.After this time the NiCads should never be left in a flat condition or internal filaments will form (inside theNiCads) shorting its terminals rendering it useless. If you are not going to use the NiCads for a while,charge them before placing them into storage. NiCads have a memory effect, for longevity, once amonth flatten them completely then fully charge them again. Avoid excessive ‘topping up’, whenpossible, it is best to charge NiCads when they are totally flat.If you have not used the cells for a long time, specialist external chargers may help ‘bring them back tolife’ by first discharging them COMPLETELY then charging at a higher rate than the AR8200 can provide.It is common practice to place exhausted NiCads into a torch to ensure that they are totally flat beforecharging, this ensures the best life span. Regular charging in a rapid external charger may beconvenient but will reduce the life span of the cells.Do not over-charge, charging for more than 24 hours may significantly shorten the life span of theNiCads. If the NiCads are left charging permanently, there is a small chance of explosion due to thebuild up of heat. If you intend permanently using the AR8200 from an external power supply, removeone battery to prevent over-charging... or better still remove all the batteries and store them away.Do not short NiCads as they can provide high current levels.The supplied NiCads will typically provide around 300 charge / discharge cycles.If dry cells are used (Alkaline, Zinc, Manganese) make sure they are removed if external power isconnected to the AR8200. Do not mix cells of different types and do not mix new and used cells.Section 1-6-3, 1-6-4
20(2) Making the AR8200 ready for operation2-1 LCD (Liquid Crystal Display)All relevant operational information is provided via the large LCD. To see all the available LCD legends,and to test the LCD, an LCD test routine has been provided. and hold the key thenswitch the AR8200 on, . When the sign-on message has been displayed all LCDgraphics will be displayed. To exit the LCD test . The LCD contrast is adjustableusing the configuration menu as is the rear LCD & keypad illumination.1 Priority2 Search hold / band scope peak hold3 Voice squelch4 Free search / scan5 Level squelch6 Low battery7 Auto store8 Attenuator9 Automatic Frequency Control10 Step-adjust11 Duplex12 Sleep13 Key lock14 Function15 Pass (lockout)16 Select scan17 Noise limiter18 RS232 remote19 Band scope peak search / quick memory20 Auto-mode21 Operating mode (2VFO, SRCH, SCAN etc)22 Receive mode23 Tuning step size24 Active receive frequency25 Squelch open legend26 Signal meterTypical examples of LCD:- Section 2, 2-1
21 2-2 Connect the aerial (antenna)Two aerials are supplied with the AR8200:l BNC mounted whip aeriall MW bar aerialFor general reception on the VHF/UHF bands, connect the supplied whipaerial to the BNC socket on the top panel of AR8200. This is a bayonetconnector, line up the slots, press down firmly and twist clockwise, theguides will position, then let go. A different aerial can easily be fitted onceyou have established that the AR8200 is operating correctly and you arefamiliar with operation.If you wish to monitor MW (Medium Wave bands), plug in the MW bar aerial.The MW slot on the top panel is protected by a sliding door to keep out dustand rain. A cut-out on the rear edge of the top panel enables the sliding door tobe easily ‘swept’ open using a fingertip or thumb. Another cut-out toward thecentre of the top panel enables the sliding door to be easily‘swept’ closed... No force is required !The MW bar is asymmetrical. With the longer arm of the MW bar facing to theright (grooves to the front) locate the MW connector into the socket and pushinto place. The force required to engage the MW aerials is quite small, aboutthe same as you would use to ensure the key ispressed with a positive result. If youreally press very hard, it is possibleto force the connector in back-wards... the MW aerial will notoperate if connected backwards.Remember to close the MW slidedoor when the MW bar aerial isnot in use.2-3 Fit the batteriesFit the NiCad cells or dry batteries to the AR8200 as detailed in section 1-6-1 of this manual.Alternatively the charger may be connected to the 12V d.c. socket of the AR8200 (however, do notconnect external power if dry batteries are fitted).Section 2-1, 2-2, 2-3
222-4 Keypad and knobs... what you need to know ‘most’Several of the keys have special characteristics, a summary was given in section 1-5-1 of this manualwhere it was explained that several keys have two of three functions associated with them.&IMPORTANT Note: Make sure you understand the PASS (LOCKOUT / SKIP) operationbefore using the PASS facility, this applies to the PROTECT facility too, make sure bothfacilities are understood before you attempt to use them.The list presented here represents ‘what you need to remember most’ ! Refer to section 1-5-1 of thismanual for the definition of and should you not understand the syntax shown here.2-4-1 ENTER keyUsed as an ENTER key to accept data entry. to enter the current frequency in to memory (a quick memory facility is also available,explained section 4-1 of this manual). to access the text search menu.2-4-2 FUNCTION keyThe function (shift) key is used to select the second function of keypad facilities. to toggle the FUNCTION (shift) on/off. An solid reverse legend LCD “FUNC” indicateswhen function shift is in operation. The function status is terminated automatically in the normal courseof entry. to initiate double-shift which is used in certain menus as a short-cut. The reverse “FUNC”legend flashes when double-shift is engaged.2-4-3 PASS keyThis key needs special attention as it acts as select ON/OFF/DEFAULT toggle in various menus. key to PASS (lockout) memory channels during memory read & scan mode and toPASS (lockout / skip) unwanted frequencies in search mode. in 2VFO mode to access the VFO PASS menu which extends to include the SEARCHbank pass edit menu. PRESS in 2VFO, SEARCH or SCAN mode to access the SELECT SCAN editmenu.Section 2-4, 2-4-1, 2-4-2, 2-4-3
232-4-4 CLEAR key to abort entry via the keypad... if in doubt, to return to the previousdisplay menu or operating mode. to select an option when an optional SLOT CARD is used. and hold the key while powering on the AR8200 to soft reset themicroprocessor should the AR8200 appear to behave strangely... no memory contents will be lost.2-4-5 MONITOR keyThe MONITOR key is used to force the squelch open to manually intervene ensuring that no weaksignals are missed. and hold the key to defeat the squelch control (saves turning thesquelch control fully anti-clockwise then back to threshold position).When the “DUP” legend is displayed during frequency offset or VFO SCAN (DUPLEX) operation, the key forces the AR8200 to switch to the alternative frequency.In SCOPE mode, the key enables the reception of the marker frequency.2-4-6 KEY LOCKThe KEY LOCK is intentionally small to reduce the chances of accidental operation. Key lock is usefulwhen you do not wish an important frequency to be lost or the AR8200 to be incorrectly set to a differentfrequency. The key lock status is not deactivated by switch off / on, the and keys arenot affected by key lock. to toggle the key lock on / off, an LCD key symbol “ ” indicates status.Section 2-4-4, 2-4-5, 2-4-6
24(3) Basic manual operation of the receiverThe following information explains how to tune to a specific frequency, change receive mode etc.&Note: When the AR8200 is switched OFF, all VFO data will be automatically stored intoflash-ROM memory storage. No battery or capacitor is required for memory backup. Shouldthe NiCad cells (or dry batteries if in use) become completely exhausted, the last storedmemory channel or last VFO data ‘may’ be lost.CURSORThe CURSOR may apparently ‘go to sleep’ at times when menus are called. This is because of themany tasks called by the microprocessor, it is simply doing something else at the time you call it. Thisis particularly noticeable when recalling memory banks when only a few channels have been stored.3-1 Switching OnSet the squelch control to the 12 o’clock position and rotate the volume control to the 12 o’clock position. and hold the key until the AR8200 powers up. It is never a good idea to switch onany receiver with an earphone connected, there may be an audible click when the unit is switched on orthe volume may be accidentally set uncomfortably high.In the default state, the LCD will show the opening message “WELCOME TO THE NEW WORLD OFAR8200” across the first four lines, at the same time the microprocessor generates the ‘boot up data’required to control the receiver.In normal use, the squelch control should be rotated clockwise until the background noiseis just cancelled, this is known as ‘threshold’ and is the most sensitive setting for thesquelch control. Do not rotate the control too far clockwise or only the stronger localsignals will be heard. If you find setting the squelch control difficult, try removing the aerialfrom the receiver.Should you encounter problems in setting the volume level, the key on the left handpanel to momentarily defeat (open) the squelch so that a comfortable volume level may be set.It is best to the key at this time to place the AR8200 in a known state of operation.The condition of “VFO” (1VFO) or “2VFO” is generally referred to as manual mode. The “2VFO” legendwill be displayed in the upper left of the LCD to confirm selection.&Note: If the AR8200 has no data input via the keypad or other controls for 90 seconds, some menus will time out and the AR8200 will return to its previous task just as if the key had been operated.3-2 2VFO twin VFO selectionThe AR8200 receiver has a twin VFO system being identified as “V-A” and “V-B” on the LCD to the leftof the frequency readout. The term VFO historically means ‘Variable Frequency Oscillator’ and todayrefers to a tuneable data store which contains frequency, mode, step, step-adjust, attenuator etc.Section 3, 3-1, 3-2
25Both VFO frequencies are displayed in parallel format on the LCD, one above the other. The ‘active’VFO (the one which is currently receiving) is displayed using a large font centrally on the LCD, the‘standby’ VFO is shown on a lower line using a smaller font size. the key to first select ‘VFO mode’ (should the receiver be scanning or searching etc).Each time the key is pushed VFO “V-A” and VFO “V-B” alternate between active and standby.The first time you enter a frequency via the numeric keypad, it is best to the key toplace the receiver in a known state of operation. the key so the “V-A” becomes theactive VFO (upper and largest of the two frequency readouts). This condition is referred to as ‘2VFO’mode with VFO-A active and VFO-B as standby. If you find the twin frequency display confusing, or use the key sequence (while no signal is present) so that only a single frequency readout is displayed, this is referred to as‘1VFO’ mode. Both 1VFO and 2VFO modes may be referred to simply as VFO mode or manual mode.Section 3-2
26Transfer to active VFOWhen the AR8200 has stopped on an active frequency in memory read, scan or search mode, use thekey sequence to transfer the frequency to the active (upper VFO). TheAR8200 will revert to 2VFO mode where the frequency may be monitored.3-3 Entering a frequency using the numeric keypadWhile in VFO mode, enter the required frequency using MHz format followed by .Example of frequency entry 80.8 MHz There is no need to key in the trailing zeros to the right of the decimal point as they are automaticallyadded by the microprocessor.If keying in a whole MHz such as 118.000 MHz there is no need to key in either the decimal point ortrailing zeros, they are all added by the AR8200 microprocessor.Example of ‘MHz round number’ frequency entry for 808.000 MHz While keying in frequency data, the bottom line of the LCD displays “FREQ SET” to indicate what sort ofdata input the AR8200 is expecting. Similar helpful messages are displayed at other times during datainput.Example of frequency entry 954 kHz (0.954 MHz) The frequency of 954 kHz is equivalent to 0.954 MHz. When entering frequencies below 1 MHz, thereis no need to proceed the decimal point with a zero as this is added by the microprocessor duringfrequency entry then removed when the key is pushed to ensure the display appears neatand tidy.You will note that frequencies below 3.0 MHz (3000 kHz) will be automatically displayed in kiloHertzformat (the letter “k” will be displayed to the right of the frequency readout) and the decimal pointSection 3-2, 3-3
27displayed to the right of the kHz position. This is to ensure easy recognition of short wave frequencieswhich are often listed as ‘kHz’ in frequency guides.If an attempt is made to enter an ‘out of range’ or invalid frequency (such as 2345 MHz or 0.09 MHz) theerror beep will sound (if beep is enabled) and the LCD returns to the previous frequency prior tofrequency input. Acceptable input range is 0.1 MHz to 2040 MHz.&Note: If you pause during frequency input for more than 90 seconds, the menu will time outand the AR8200 will return to its previous task just as if the key had been operated.Aborting frequency inputIf for some reason you do not wish to complete the frequency data input, beforecompleting the input sequence with .3-4 Correcting frequency inputShould an error be made while entering frequency data (by pressing the wrong numeric key), it may becorrected using the ð BACKSPACE facility. This facility enables rapid correction of errors prior to thecompletion of entry by the enter key.Example of frequency data correction while keying 433.250 MHz then (as if you have made a mistake) ð, the number “7” clears from the LCD to finalise the correct entry.3-5 Changing frequency using the ñ and ò keysThe ñ and ò keys provide a convenient method of frequency change.The speed at which the receiver steps up or down depends upon the STEP SIZE which is default toAUTO. In AUTO the step size, receiver mode etc is taken from the factory pre-programmed band planbut may be overridden at any time.Examples of tuning step include: 0.05 kHz (50 Hz), 0.1 kHz (100 Hz), 0.2 kHz (200 Hz), 0.5 kHz (500Hz), 1.00 kHz, 2.00 kHz, 5.00 kHz, 6.25 kHz, 8.33 kHz, 9.00 kHz, 10.00 kHz, 12.50 kHz, 20 kHz, 25.00kHz, 30 kHz, 50 kHz, 100.00 kHz. The tuning step size may also be programmed in multiples of 50Hz (via the keypad) so that unusual step sizes other than stated are possible. the ñ key to tune the receiver upward in whichever step size is selected, use the ò to tune thereceiver downward in frequency. You may and hold either key to continuously tune thereceiver in whichever direction is desired, tuning will stop when the key is released.Section 3-3, 3-4, 3-5
28&Note: In AM and FMmodes with the squelchopen, reception will bemomentarily interruptedwhile tuning and the “S”squelch legend will flashas tuning progresses, a‘chuff-chuff’ sound willaccompany tuning, thisis normal.Fast tuningThe ï and ð keys may be used to tune the receiver at a rate TEN TIMES FASTER than the selectedstep size. This means that when a step size of 25 kHz is selected, tuning will be in 250 kHz steps, thisprovides a convenient method to quickly tune up and down frequency bands.&Note: Be aware that when auto-mode is selected and a tuning step change hasautomatically taken place, one PUSH up or down may take several pushes to arrive back tothe starting place again.1 MHz tuningWhile the “FUNC” legend is displayed (achieved by a of the key, again todeactivate as a toggle), the tuning rate for the ñ and ò keys is 1 MHz per increment.3-6 Changing frequency using the main dialWhile in VFO mode, the active VFO frequency may be ‘tuned’ in a similar way to a domestic receiver orother specialist receivers using the rotary tuning main dial which is mounted on the left hand side of thecabinet. This is best controlled using the thumb of you left hand (with the set held in your left hand), itmay also be tuned using the middle finger of your right hand or in whatever way you find comfortable.This method of frequency selection is the most traditional approach to locating signals particularly onthe short wave and medium wave bands. It provides an easy method to locate new or previouslyunknown frequencies or to check activity within certain frequency bands such as amateur or short wavebroadcast. The rotary tuning main dial provides the very best ‘user interface’ with the AR8200 especiallyfor USB, LSB and CW listening.Rotating the main dial ‘upward’ increases frequency whilerotation ‘downward’ decreases receive frequency.The speed at which the main dial tunes the receiver depends upon the STEP SIZE which is default toAUTO. Examples of tuning step include: 0.05 kHz (50 Hz), 0.1 kHz (100 Hz), 0.2 kHz (200 Hz), 0.5 kHz(500 Hz), 1.00 kHz, 2.00 kHz, 5.00 kHz, 6.25 kHz, 8.33 kHz, 9.00 kHz, 10.00 kHz, 12.50 kHz, 20 kHz,25.00 kHz, 30 kHz, 50 kHz, 100.00 kHz. The tuning step size may also be programmed in multiples of50 Hz (via the keypad) so that unusual step sizes other than stated are possible.While the “FUNC” legend is displayed (achieved by a of the key, again todeactivate as a toggle), the tuning rate for the main dial is TEN TIMES FASTER than the selected stepsize. This means that when a step size of 10 kHz is selected, tuning will be in 100 kHz steps, thisprovides a convenient method to quickly tune up and down frequency bands.Section 3-5, 3-6
293-7 Changing receive modeDue to the necessities of signal bandwidth, channel occupancy and transmission efficiency, differentreceive modes are used by various services. In addition to this the specification for tuning step andreceive mode are allocated by departments of Governments following International discussions so arenot consistent throughout the world. For this reason, it is necessary to change receive mode in order tomonitor various transmissions.For your convenience, receive mode and tuning step size have been pre-programmed into the AR8200auto-mode bandplan data at the factory to simplify operation of the receiver, especially while youfamiliarise yourself with all the facilities. Should you wish, the defaults may be manually over-ridden atany time so that you may select an alternative receive mode and tuning step on any frequency.3-7-1 Auto-mode selectionWhen auto-mode is in operation (so that receive mode and tuningstep size are automatically selected for you by the AR8200microprocessor), the reverse legend “AUT” is displayed toward thetop right of the LCD.To activate auto-mode or reconfirm its selection while in VFO mode, Alternatively “AUTO” may be selected from the “MODE SET” menuaccessed with the key sequence .The key acts as a short cut to “AUTO”, alternatively usethe main dial or ï ð keys. When the reverse “AUTO” legend hasbeen selected, to accept the data input. TheLCD will revert to VFO mode with the “AUT” legend confirmingselection.&Note: Auto-mode is cancelled as soon as the receive mode, tuning step or otherrelated data is changed. Remember that auto-STEP and auto-MODE are linked, reselectAUTO-MODE if either have been adjusted and you require the auto bandplan selection.3-7-2 Receive mode selection menuAny receive mode may be selected at any frequency within the receiver’s frequency coverage.To access the receive mode menu , the following modes are available:AUTO, WFM, NFM, SFM, WAM, AM, SAM, USB, LSB, CW. Use the main dial or ï ð ñ ò keys to makeselection, the key acts as a short cut to “AUTO”. To accept the selection .As a further short cut to AUTO MODE, . The reverse LCD legend“AUT” confirms selection.Section 3-7, 3-7-1, 3-7-2
30Generally speaking the following modes will apply:AUTOReceive mode and tuning step will be selected automatically using the pre-programmed autobandplan data.WFMWide band Frequency Modulation - used by VHF and UHF broadcast stations as excellent audio qualityis available due to the relatively wide frequency bandwidth employed. Used only for local services suchas VHF Band-II stereo (received as mono on the AR8200) and UHF TV sound channels.When listening in VERY strong signal locations especially when using an external aerial, adjacentchannel interference may be observed due to the wide nature of the IF filters. Should interference beencountered, use the attenuator to reduce signal strength or swap to the standard semi-flexible whipaerial.NFMNarrow band Frequency Modulation - this provides high quality communication for relatively shortdistance operation. NFM uses a greater frequency bandwidth than other point-to-point modes such asSSB so is less efficient.NFM is the most common mode used above 30 MHz with the exception of the airbands (which use AM).NFM is widely used on the VHF bands: VHF Marine band, 2m amateur Band (145MHz), 70cm amateurband (433 MHz), PMR (Private Mobile Radio) and utilities.In the absence of a signal, the background white noise may appear quite loud. For ease of listening thesquelch control should be rotated clockwise until the background noise just disappears, this should becarried out when no signal is present. The point where the background noise is cancelled is known as‘threshold point’. Do not advance the squelch control more than necessary or the receiver will appear tobe desensitised and weaker signals will be missed.SFMSuper Narrow band Frequency Modulation - this mode is specific to the AR8200. Essentially this is thesame mode as NFM but uses a narrower IF filter for added selectivity when monitoring crowded bandssuch as PMR utilities.WAMWide Amplitude Modulation - this mode is specific to the AR8200. It is essentially the same as AM butuses a wider IF filter, particularly useful for monitoring parasitic airband transmissions when ‘repeatertransmissions’ are employed. Provides good broadcast quality for MW (medium wave band) listening tostrong local signals when adjacent channel transmissions are not encountered.AMAmplitude Modulation - Used by broadcast services throughout the world on medium wave and shortwave. AM is also used by VHF civil airband, UHF military airband and some PMR (Private Mobile Radio)and utility services.NAMNarrow Amplitude Modulation - this mode is specific to the AR8200. It is essentially the same as AM butuses a narrower IF filter for added selectivity when monitoring crowded bands such as short wave. Dueto the narrower bandwidth employed, the audio quality will be compromised.USBUpper Side Band - is a form of Single Side Band (SSB). USB is used commercially and by radioamateurs on frequencies above 10 MHz (below 10 MHz radio amateurs tend to use LSB to assist theseparation of commercial and amateur users on traditionally shared bands, this prevents them fromattempting to communicate with each other… which is prohibited).Section 3-7-2
31All long range shipping and oceanic air traffic (as well as long range military aircraft) use USB. DATAmodes such as RTTY, SITOR, PACKET, FAX etc may be resolved using USB.SSB is a very efficient method of transmission as the unwanted second sideband and carrier have beenremoved. This allows the full transmitter power to be employed in conveying useful information within thewanted sideband. As a result, greater distances are possible on SSB with a smaller frequency band-width being required than most other receive modes.The AR8200 uses true carrier re-insertion and a dedicated SSB I.F. filter so that voice becomesintelligible. However due to the complexities of SSB, audio never sounds 100% natural, like allSSB-equipped receivers, the AR8200 may sound a little ‘robotic’ but you soon get used to SSB receivers.Small tuning steps of 50 Hz or 100 Hz should be used for tuning in USB and the othersimilar modes LSB & CW.The AR8200 being a hand held wide band receiver cannot offer the receive performance of adedicated short wave receiver such as the AOR AR7030 or base wide band receiver AOR AR5000.This is due to the limitation of size, as a result the receiver’s AGC (Automatic Gain Control)circuitry band pass circuits and reference stability cannot be as complex. The AR8200 willhowever provide adequate results for oceanic, ship to shore and amateur band listening etc.The SSB frequency display is not offset (like some other units), this is good for referencing to frequencybooklets and data bases. However being such a compact wide band receiver, it will not be unusual forthe SSB display to be a few hundred Hz off frequency when listening to known frequencies such asVOLMET (airband weather forecast service). For example the European 5.5050 MHz VOLMET servicemay appear between approximately 5.5045 and 5.5055 MHz... this is considered normal.LSBLower Side Band - The same comments apply as for USB. By convention, radio amateurs use LSBbelow 10 MHz.CWContinuous Wave - Often referred to a Carrier Wave or Morse code ‘dots and dashes’. Commonlyused on the short wave bands by radio amateurs toward the lower end of each band allocation. Somecommercial use is still made by shipping etc although its use is being phased out due to the introductionof automated stations.3-8 Changing tuning STEP sizeThe specification for channel occupancy, step (separation) and mode are decided by and allocated bydepartments of Governments following International discussions.Not surprisingly the allocation of frequency bands are not the same all over the world and channelseparation (step) varies from band to band. As an example, the channel separation (step) for themedium wave band in Europe is 9 kHz while in the U.S.A. it is 10 kHz.For the above reasons it is necessary to alter the STEP size according to local bandplan conventions.The AR8200 has been pre-programmed at the factory with all the bandplan data (specific to each marketarea) so that the AR8200 will automatically select the appropriate step size and mode for the frequencychosen. This greatly simplifies operation of the receiver while you are familiarising yourself with all thefacilities.The pre-programming of step size may be manually over-ridden so you may choose alternative settingsat will or when band plans are updated.Section 3-7-2, 3-8
32Should you wish to change the default tuning step size .The third main text line of the LCD will display the current defaultsize (perhaps “25.00” kHz). If the reverse LCD legend “AUT”displayed in the upper right corner of the LCD, this indicates thatAUTO MODE / STEP is currently selected.The bottom line of the LCD displays the legend “STEP SET” toindicate that the AR8200 is inviting you to change the step size.Use the main dial or ï and ð keys to select the required step size.The list is as follows: 0.05 kHz (50 Hz), 0.1 kHz (100 Hz), 0.2 kHz(200 Hz), 0.5 kHz (500 Hz), 1.00 kHz, 2.00 kHz, 5.00 kHz, 6.25kHz, 8.33 kHz, 9.00 kHz, 10.00 kHz, 12.50 kHz, 20 kHz, 25.00 kHz,30 kHz, 50 kHz, 100.00 kHz.To accept the displayed tuning step size ,the LCD will revert to its previous display.&Note: The frequency step of 8.33 kHz has been includedfor compliance with the new VHF airband allocation, it has beencorrectly implemented as eight-and-one-third kHz so that nocompound error arises (i.e. the last digits display 33, 66, 00).The tuning step size may also be programmed in multiples of 50 Hz (via the keypad) so that unusual stepsizes other than stated are possible. The acceptable step size range is 0.05 kHz (50 Hz) to 999.95 kHzin 50 Hz steps.When the desired step size has been entered, to accept the new step size. If you attempt to input an invalid stepsize, the error beep will sound (presuming that the beep facility isenabled) and the incorrect input will be ignored. * Active frequency must be divisible by step size *There is just one small point to bare in mind, the active frequencymust be divisible by the step size... in 99% of cases they will be.However, should you start experimenting with different step sizesyou may notice the active frequency change automatically tothe nearest multiple of step size as the AR8200 calculatesautomatically for you, there is no need to carry a calculator!For example, select 118.000 MHz then select a 9 kHz step size: choose “9.00” using the main dial then The receive frequency will currently be displayed as 118.000 MHz but once the main dial has been used, thedisplayed frequency will be corrected to 117.9990 or 118.0080 MHz (depending upon the direction of tuning)both of which are the closest multiple of 9 kHz to 118 MHz.Section 3-8
33The display doesn’t correct immediately upon frequency entry to allow you to enter the ‘STEP-ADJUST’ menu tochange the step size and step-adjust in order to help track unusual band plans.&Note: AUTO-STEP, STEP-ADJUST and AUTO-MODE are linked to the pre-programmedbandplan data. When one of the parameters is changed from the default “AUTO” the bandplan will beignored.To re-instate AUTO step size, the receive MODE must be returned to “AUTO” using the “MODE SET” menu orby using the key sequence 3-9 STEP-adjustThe AR8200 provides a powerful feature to enable accuratefollowing of unusual band plans. When active, the “ADJ” legend isdisplayed top-centre of the LCD.Step-adjust is used when the receiving frequency is not divisibleby the step size in use (It is possible that step-adjust has beenprogrammed into the auto-mode bandplan data for some worldmarket areas). Therefore step-adjust is useful for certain bandplans such as cellular which in some areas starts as 917.0125 MHz then increments in 25 kHz steps.Another example is the CB allocation in certain areas which starts at 27.60125 MHz then increments in10 kHz steps. Often just a HALF STEP is required but more exotic band plans can be tracked.Step-adjust may be factory pre-programmed into the bandplan data (you may over-ride this). It is alsopossible to store the step-adjust data into memory channels and search banks.3-9-1 Automatic calculation of step adjustThe AR8200 can calculate the required step-adjust, simplifying its use.Example 1: Assume that you wish to tune from 148.010 MHz in 20 kHz steps (i.e. 148.010, 148.030,148,050, 148.070, 148.090 etc). When manually tuning, the AR8200 would normally correct thefrequency display to read 148.020 then step upward in 20 kHz steps. Tuning back downward will skip148.010 MHz (the starting point) as the original frequency was not divisible by step size… it wasoffset by +10 kHz. Usually the frequency must be divisible by the tuning step size. However, theSTEP-ADJUST facility is used to address this situation.With the above example of 148.010 MHz with 20 kHz steps in mind, while in VFO mode, key in the startfrequency of 148.010 MHzSection 3-8, 3-9, 3-9-1
34 Access the STEP menu using the key sequence . Use the main dial to select a step size of20 kHz (do NOT press enter!). to access the STEP-ADJUST menu.Accessing this menu will activate the step-adjustfacility, the “ADJ” legend will be displayed on theLCD to confirm selection. You will note that thecalculated step adjust value is displayed on thebottom of the LCD as “ADJ+ 10.00” representing apositive offset of +10 kHz with a step size of 20kHz. to accept the displayeddata.The display will return to VFO mode with 148.010MHz displayed. The main dial will now correctlyfollow the required bandplan.3-9-2 Cancelling step-adjustThere are two ways to cancel step-adjust1. Access the STEP menu. , the step-adjust data will beimmediately displayed along with step size. to remove the step-adjust datafrom the display, the “ADJ” legend will be removed from the LCD. to acceptthe changes. Step-adjust will be cancelled.2. Presuming that you have manually selected step-adjust (step-adjust has not been set by theauto-mode bandplan), re-select AUTO-MODE which will reinstate the auto-mode step size, step-adjust, frequency offset and receive mode. . The “ADJ” legendwill be removed from the LCD and the auto-mode “AUT” legend will be displayed.3-9-3 Manual setting of step-adjustThe AR8200 usually correctly ‘guesses’ what step-adjust you require, often this is a half step but manualintervention is possible!Example 2: Assume that you wish to tune from 58.445 MHz in 15 kHz steps (i.e. 58.445, 58.460, 58.475,58.490, 58.505 etc). When manually tuning, the AR8200 would normally correct the frequency display toread 58.455 then step upward in 15 kHz steps. Tuning back downward will skip 58.445 MHz (the startingpoint) as the original frequency was not divisible by step size… it was offset by +5 kHz. Usually thefrequency must be divisible by the tuning step size.Section 3-9-1, 3-9-2, 3-93
35However, the STEP-ADJUST facility is used to address this situation.With the above in mind, 58.445 MHz with 15 kHz steps in mind, while in VFO mode, key in the startfrequency of 58.445 MHz Access the STEP menu using the key sequence . 15 kHz is not astandard size provided by rotating the main dial so key in the required 15 kHz step size. (do NOT press enter!). to access theSTEP-ADJUST menu. Accessing this menu will activate the step-adjust facility, the “ADJ” legend will bedisplayed on the LCD to confirm selection. You will note that a calculated step-adjust value is displayedon the bottom of the LCD as “ADJ+ 7.50” representing a positive offset of +7.5 kHz with a step size of 15kHz… the AR8200 often assumes that you require a half step. However when looking at therequirement the required offset is actually 5 kHz. ò to move the cursor to the step-adjust(bottom) line. Use the main dial to select 5.00 kHz (or key in 5 kHz ). to accept the displayed data. The display will return to VFO mode with 58.445 MHzdisplayed. The main dial will now correctly follow the required bandplan.Manual intervention is not always requiredNote: The AR8200 is not all that dumb really, in the above example, as soon as youpressed the key the CPU realised that a half step was not appropriate so wouldhave selected an offset of 5 kHz automatically! Try it and see, just whileit displays 7.50 kHz - yes, it works! Access the step menu to review the figures, they willshow a step size of 15 kHz and step-adjust of 5 kHz… clever!Example 3: This example shows just how bizarre the bandplan can be. Assume that you wish to tunefrom 145.210 MHz in 14 kHz steps (i.e. 145.210, 145.224, 145.238, 145.252, 145.266 etc). Whenmanually tuning, the AR8200 would normally correct the frequency display to read 145.236 then stepupward in 14 kHz steps. Tuning back downward will skip 145.210 MHz (the starting point) as the originalfrequency was not divisible by step size.Section 3-93
36With this example of 145.210 MHz with 14 kHz steps in mind, while in VFO mode, key in the startfrequency of 145.210 MHz Access the STEP menu using the key sequence . 14 kHz is not astandard size provided by rotating the main dial so key in the required 15 kHz step size. (do NOT press enter!). to access the STEP-ADJUST menu. Ignore the step-adjust value displayed (10 kHz), to let the AR8200 automatically calculate the requirement, you will need to a second time to exit the menu and return to frequency display.The frequency of 145.210 MHz will be displayed and the main dial will now correctly follow the requiredbandplan, 14 kHz steps 145.224, 145.238 MHz etc. For your information, the required step-adjust was2 kHz. If you wish, access the step menu to review the figures, they will show a step size of 14 kHz andstep-adjust of 2 kHz… right again!3-10 FREQUENCY OFFSETThis facility enables receive frequency to be quickly SHIFTED (two key presses) by a pre-determinedvalue, this makes it easy to track duplex-transmissions or check repeater inputs / outputs. Offsetfrequencies may be factory pre-programmed into the auto-mode bandplan data for some world marketareas. Frequency offset may also be programmed manually.The locations for frequency offset storage are numbered 00 to 47 with 00 acting as OFF, this makes 47locations available. Locations 01 to 19 may be programmed by the operator while locations 20 to 47 arereserved for factory programming (used by the auto bandplan data). Look at locations 20 to 47 forcommon offsets, they may already be stored.Frequency offset may be programmed into VFO, memory channel and search banks. It is mostconvenient to set-up in VFO mode then save the data to specific memory channels for quick recall at alater date. Frequency offset is primarily designed for memory channel use, it may appear rather longwinded to toggle on/off in VFO mode. However even when programmed, frequency offset is in no waydetrimental to normal operation.The acceptable range of frequency offset is 0 MHz to 999.99 MHz, of course if the offset is set to 0 MHz,the frequency will not change! Before the FREQUENCY OFFSET facility can be used, it first needs to beconfigured (unless factory programmed for certain bands).3-10-1 Using pre-programmed frequency offset dataTo access the frequency offset set-up menu Section 3-9-3, 3-10, 3-10-1
37The third line will display “OFFSET 00” with “00”indicating that frequency offset is currently off,there will be no “DUP” legend displayed when thefrequency offset is OFF. The bottom line of LCDwill display “- - - . - - - -“ indicating that no offsetis stored. Use the main dial or ï ð keys toreview the offset locations, particularly numbers20 to 47 where useful factoryprogrammed offsets may be stored.As soon as you shift from location00, the “DUP” duplex legend isdisplayed on the LCD to indicate that frequency offset is in use.Presuming that data is already programmed into an offset location, the key to toggle offset between “+” positive and“-“ negative offset, this is a global toggle and affects ALLfrequency offset channels (but not those already stored intomemory or search banks). To accept the offset setting, . The LCD will revert to its operation prior to the frequencyoffset menu being called. The LCD legend “DUP” will be displayedto indicate that frequency offset has been activated.To use the frequency offset , the LCD frequencywill alter to take account of the offset ‘value & direction’ and thesquelch will be defeated. When you release the key, theAR8200 will revert to the original frequency (and squelch will closeif no signal is present).&Note: Each VFO, memory channel and search bank can be programmed with a differentfrequency offset. If different channels and offsets have been programmed to VFOs etc, thekey sequence will recall the specific offset location originallyused during programming, this is particularly useful when you simply wish to toggle the + / -offset.To cancel the frequency offset, access the frequency offset menu and select location “00”, the “DUP”legend will be removed from the LCD.3-10-2 Entering new frequency offset dataAssume that you are in VFO mode with a frequency of 433.000 MHzTo access the frequency offset set-up menu The third line will display “OFFSET 00” with “00” if the frequency offset is currently off, there will be no“DUP” legend displayed when the frequency offset is OFF.Use the main dial or ï ð keys to select an unused frequency offset location between the numbers of 01and 19 inclusive (00 being interpreted as off and 20 - 47 reserved for pre-programmed data).Section 3-10-1, 3-10-2
38For example, use the main dial until the LCD displays “OFFSET 01”, the bottom line of LCD will display“- - - . - - - -“ indicating that no offset has been previously stored. If data is stored, the offset value will bedisplayed on the bottom line of the LCD and may be overridden.Key in the desired offset in MHz format, the ð key may be used as a backspace should an error bemade. i.e. for an offset of +1.600 MHz (don’tpush enter!) the key to toggle the frequency offset direction between “+” and “-“ untilthe LCD shown “+” for positive offset. You may use the ñ key to accept the frequency but stay in themenu (in case you haven’t yet decided on the direction of offset), to accept the datainput.The LCD will revert to its operation prior to the frequency offset menu being called. The LCD legend“DUP” will be displayed to indicate that frequency offset has been activated.To use the frequency offset , the LCD frequency of 433.000 MHz will alter to take account of theoffset value and direction and the squelch will be defeated, the duplex frequency of 434.600 MHz (whichis 1.600 MHz above the original frequency) will be displayed. When you release the key, theAR8200 will revert to the original frequency of 433.000 MHz (and squelch will close if no signal ispresent). You can access the frequency offset menu simply to change the direction of offset from “+” to“-“ or vice-versa.3-11 AttenuatorThe attenuator adds 10dB of signal reduction to the RF input stages of the AR8200 to reduce thepossible effects of strong signal overloading due to connection to an external aerial or when the receiveris used in close proximity to strong transmissions.The AR8200 has two settings for ATT (attenuator), on and off.When the attenuator is ON, the legend “ATT” appears on upper leftof the LCD.To toggle the attenuator on/off ,the legend “ATT” confirms selection and incoming signals will bereduced in strength. To toggle on/off again just repeat thesequence , the legend “ATT” isextinguished when the attenuator is OFF.The selection of attenuator is held separately in each VFO, each memory channel and may also betoggled during search (in scan mode, the scanning process must be stopped in order to see whichmemory channel you are applying the attenuator to!).3-12 Noise limiterThe noise limiter can help to reduce the effects of noise spikes and pulses while listening in AM and SSBmodes (WAM, AM, NAM, USB, LSB, CW). The noise limiter may be toggled on/off in all receive modesbut will only be operational in the AM and SSB modes, it will have no effect on WFM, NFM or SFM.Section 3-10-2, 3-11, 3-12
39The noise limiter has two settings, on and off. When the noiselimiter is ON, the legend “NL” appears on LCD.To toggle the noise limiter on/off ,the legend “NL” confirms selection and the noise limiter will beactive in AM and SSB modes. To toggle on/off again just repeatthe sequence , the legend “NL” isextinguished when the noise limiter is OFF.The selection of noise limiter is held separately in each VFO, each memory channel and may also betoggled during search (in scan mode, the scanning process must be stopped in order to see whichmemory channel you are applying the noise limiter to!).3-13 AFC - Automatic Frequency ControlThe AR8200 is equipped with AFC, this is useful when tracking unusual band plans or when the exactfrequency is unknown… it ensures that the AR8200 is tuned to ‘centre frequency’ for best reception.AFC is operational only in NFM, SFM, WAM, AM, NAM… AFC is not operational in WFM, USB,LSB, CW. If AFC has been activated and you select a mode not supported by AFC, the “AFC” legendwill be extinguished from the LCD. Once AFC has been activated (say when you are monitoring NFM),it will temporarily be deactivated should you select WFM, USB, LSB, CW but will automatically bereactivated when NFM or other supported modes are again selected.VALID = NFM, SFM, WAM, AM, NAMINVALID = WFM, USB, LSB, CWAFC has two settings, on and off. When AFC is ON, the legend“AFC” appears on LCD during reception using a supported receivemode.&Note: Attempted operation while using an unsupportedreceive mode will result in the input being ignored, however theon/off toggle status will be incremented and implemented oncea supported receive mode is selected (i.e. you can alwaystoggle the AFC status on/off regardless of displayed mode).To toggle AFC on/off , the legend “AFC” confirms selection when asupported receive mode is in use. To toggle on/off again just repeat the sequence , the legend “AFC” is extinguished when AFC is OFF and using a supported receivemode.The selection of AFC is held separately in each VFO, each memory channel and may also be toggledduring search (in scan mode, the scanning process must be stopped in order to see which memorychannel you are applying the AFC to!).AFC characteristicsWhen the AFC is active while monitoring a transmission using a supported receive mode, AFC willattempt to automatically ‘pull’ the AR8200 onto centre frequency for best reception.Section 3-12, 3-13
40The distance in kHz which the AR8200 can ‘pull’ depends upon receive mode, IF bandwidth and signalstrength… the wider the filter and stronger the signal then the further AFC can pull.Typically AFC will pull in the region of ± 5 kHz to ± 15 kHz, the maximum value for AFC is set to± 25 kHz so that the receiver does not continually tune across the frequency spectrum looking for‘anything’ to centre tune.The AFC process usually takes a few seconds to ‘settle down’ after which time it is normal for thefrequency display last couple of digits to flicker up and down in frequency... this looks like ‘frequency drift’but fear not, the frequency tracking is under strict control! Typical accuracy of centre tuning is around 1.5kHz. If no signal is present and the squelch is open, the last two digits will randomly flicker around.When the squelch closes in the absence of a signal, the last two digits will stop flickering but may displaya frequency which does not strictly adhere to the bandplan. If you toggle AFC off, the frequency displaywill jump to the nearest increment for the frequency band (appropriate to the tuning step selected).Section 3-13
41(4) VFO enhanced facilitiesAs well as providing a tuning data storage, the two VFOs offer additional features including quickmemory, VFO scan, VFO search and VFO environment.4-1 Quick memoriesWhile monitoring in 2VFO mode, 10 ‘quick memories’ are provided for easy saving of current VFO dataand simple recall at a later time. When all 10 quick memories have been used and further data is stored,the oldest quick memory will be overwritten. Quick memory channels are not numbered, they simplyform a chronological list which you may recall and scroll through.Quick memories may also be written to automatically when using VFO SEARCH MODE. To activateAUTO QUICK MEMORY, the VFO environment parameters need to be first set upThe AR8200 provides 1,000 memory channels in addition to the 10 ‘quick memory’ channels and apriority channel. Each ‘quick memory’ channel may hold all the data for the current VFO: frequency,mode, step, step-adjust, frequency offset, attenuator setting, noise limiter status & AFC status.4-1-1 Saving quick memory dataIf you are not already in 2VFO mode so that the “2VFO” legend is displayed towardthe upper left of the LCD. While in 2VFO mode, the key to save the current activeVFO (upper of the two frequency displays with larger characters) into quick memory.If the beep facility is active, a BEEP will be heard, if the beep facility is not active there will be noindication that quick memory storage has taken place (until you recall the data!).Change the displayed frequency and save two or three further quick memory channels.&Note: Frequencies must be more than ± 10 kHz from of a frequency already stored inquick memory or the new frequency will be ignored, this prevents all 10 quick memorychannels needlessly containing the same frequency.Saving quick memories while in VFO searchThe quick memory facility is available in VFO SEARCH mode in addition to 2VFO mode. The procedureis just the same, the key while the receiver is monitoring a transmission to save thereceive frequency and accompanying data to quick memory. This quick memory data may later berecalled for monitoring or as the starting point to tune from. Refer to section 4-3 of this manual forfurther information relating to VFO search.During VFO search, quick memories may also be written to automatically when the receiver has stoppedon an active channel for more than a specified period of time between 10s and 990s, this facility isdefault off. Refer to section 4-4-8 of this manual for further information relating to VFO search quickmemory.Section 4, 4-1, 4-1-1
424-1-2 Recalling quick memoriesOnce a few quick memory channels have been stored, key a different frequency into the VFO to assistidentification of recalled data (until you fully understand the process).While in 2VFO mode ðThe LCD will display one of the quick memory channels which have been stored, use the ï ð keys toscroll through the list which contains up to ten frequencies. The star legend “«” is displayed toward theupper right of the LCD to indicate that quick memory recall is in operation.&Note: You will note that a maximum of 9 channels can be saved, this is because theVFO frequency displayed when quick memory recall is executed is automatically storedinto one of the 10 locations… this allows you to return to the previous VFO display at a laterdate without the data being lost and saves having to remember what the frequency / datasettings were.To revert to the VFO frequency displayed prior to the execution of quick memory recall , the “«” legend will be removed from the LCD to confirm exit from quick memory recall.Alternatively you may tune away from any displayed quick memory frequency using the main dial andñ ò keys, the “«” legend will be removed from the LCD to confirm exit from quick memory recall. Theeffect (with careful use) is similar to adding a further 10 VFOs to the AR8200 !4-2 VFO scanYou will be aware that the AR8200 displays two VFOs with the top VFO being the ‘active’ VFO whichmonitors activity. At present you have to manually intervene by a of the key tochange between VFOs when monitoring duplex and semi-duplex channels (split frequency working whena base station transmits on one frequency and a mobile on another such as VHF marine and publicservice PMR… as opposed to simplex which is single frequency operation), this swaps the active VFObetween “V-A” and “V-B”.VFO SCAN causes the AR8200 to monitor the top VFO as PRIMARY and intermittently ‘flicks over’ tocheck for activity on the SECONDARY frequency when the primary frequency becomes inactive.If the active frequency remains busy then the secondary remains unchecked, if however the primarybecomes inactive (squelch closes) then the secondary is checked every few seconds for activity. If thesecondary frequency becomes active (during the time it is checked) the AR8200 will remain on the activesecond frequency for a few seconds, the active secondary VFO lower font size increases to indicate thatthe secondary VFO is being ‘actively‘ monitored. The AR8200will then return to the primary frequency to check for activitywhere it remains for a few seconds… so the process continuesover and over.To toggle the VFO SCAN facility on, use the VFOenvironment menu which is accessed with the keysequence . TheLCD will display “VFO MODE” with “VFO SCAN”Section 4-1-2, 4-2
43on the next line. The third line displays “ON” and “OFF” with the“OFF” legend displayed in reverse contrast to show that it iscurrently selected (default). To toggle the VFO SCAN on/off the key or use the main dial or ï ð keys.To accept the changes .While VFO SCAN is active, the “2VFO” legend is replaced with thelegend “V-SC” representing VFO SCAN. To toggle VFO scan off,use the same key sequence and menu.Note: While the primary VFO remains active, VFO scan will not check the secondary VFO…VFO scan will not start! While VFO SCAN is active, the priority facility is disabled.4-2-1 VFO SCAN sampling timeThe time elapsed between samples and for remaining on the secondary VFO is set by PRIORITYINTERVAL time. Please refer to the section 6-2-2 detailing priority operation. The default is time is 5seconds.4-3 VFO SearchIt is possible to quickly assign two frequency limits to VFO-A and VFO-B then instruct the AR8200 toautomatically tune the receiver from one frequency limit to the other in the specified receive mode andtuning step looking for active frequencies. This process is called VFO SEARCH.4-3-1 Defining VFO search1. Place the AR8200 into VFO mode - .2. Enter a frequency into VFO-A, i.e. to display “V-A” as the active‘top’ VFO. Enter a frequency such as 145.200 MHz3. to display “V-B” as the active ‘top’ VFO. Enter a different frequency suchas 145.775 MHz.&Note: When the receive mode is set to AUTO, the AR8200 will take the receive mode,tuning step size and other data variables from the pre-programmed auto-mode bandplan.4-3-2 Starting VFO search to start VFO search, the legend “V-SR” indicates when VFO search is in operation.Ensure that the squelch is closed in the absence of a signal (or VFO search will not work), thesearch process will start from the lowest frequency and will advance in the mode and tuning step asdefined in the active ‘top’ VFO. Data other than frequency stored in the secondary VFO will be ignored,the data being taken from the active VFO. to cancel VFO search and return to 2VFOmode.Section 4-2, 4-2-1, 4-3, 4-3-1, 4-3-2
44&Note: While in VFO mode, if the keypad or key is used, the current status of theaudio with respect to the squelch control will be maintained. If the squelch is closed beforeyou PUSH a key, the audio will remain muted until the key sequence is completed even if thefrequency becomes active (and vice-versa… if the squelch is open, audio remains even whenthe squelch closes).4-3-3 Forcing VFO search to resume & changing search directionShould VFO search stop on a busy frequency, you can force the search process to resume by rotatingthe main dial or by pushing any of the arrow keys ï ð ñ ò. The direction of rotation of main dial orarrow keys used dictates the direction of search… this is useful to back-track over an interestingfrequency.4-3-4 Locking out unwanted frequencies (PASS)It is possible to lock out (PASS) unwanted frequencies while in VFO search mode,this is useful to eliminate unwanted permanent transmissions. It is important tounderstand the PASS facility before using the key or transmissions maybe missed.While stopped on an unwanted frequency , the search processwill resume. It will appear that all frequencies are still searched, however lockedout frequencies will be ‘passed over’, the search will not stop on locked outfrequencies but the squelch may momentarily open causing a short burst of audiobefore the frequency is passed… if several consecutive active frequencies arelocked out, an audio ‘chuff… chuff… chuff…’ may be encountered.Locked out PASS frequencies are assigned PASS CHANNEL NUMBERS, there are a total of 50 PASSchannels for VFO search. Frequencies ± 10 kHz from the assigned pass frequency will be skipped,carefully consider the consequences of skipping ± 10 kHz when monitoring in USB, LSB and CW.VFO pass menuIt is possible to review, delete and add pass channels using the VFO PASS menu.If you are currently using VFO mode or VFO SEARCH, , the “VFO PASS” menu willbe displayed.Section 4-3-2, 4-3-3, 4-3-4
45 If PASS channels have already been tagged for VFO SEARCH the legend “PASS xx” will be displayedwhere “xx” indicates that data is present. If no pass frequencies have been tagged, the legend“PASS 00 ----.----” will be displayed.The frequency pass contents may be reviewed using the ï ð keys or main dial.To delete the current VFO pass frequency, key in a nul value (zero) .The frequency pass channel will be deleted and the list will re-shuffle. The frequency is once againavailable in search mode.To delete the entire contents of the VFO pass list , the legend “PASS 00 ----.----”confirms deletion. The VFO search pass list may also be deleted using the DELETE menu, refer tosection 10-2 of this manual.Adding new pass frequenciesWhile in the VFO PASS menu the ð key to wrap around to the end of the frequency pass list,the legend “PASS xx ----.----” will be displayed where “xx” is the next available frequency pass channel.The ‘dashes’ indicate that the channel is currently unused. Key in a frequency which you wish to skipduring VFO search using MHz format and ending with . if you wish to add further frequencies tobe skipped ð and repeat the process. To accept the data entry and exit the menu . This facility is particularly useful if you know what frequencies are unwanted prior tosearching, such as constant carriers etc.&Note: You may add frequencies in the range of 100 kHz to 2400 MHz via this menu but onlythose within the current search limits will be acted upon.4-3-5 Saving active frequencies to memoryWhen you encounter interesting busy frequencies, you may save them to the quick memories or memorybanks where they may be monitored at a later date (and scanned).1. Quick memoryWhile paused on a busy frequency , if the keypad beep is active a confirmationtone will be audible. Quick memories may be recalled for later monitoring or to tune from in VFOmode. Please refer to section 4-1 of this manual regarding use of the quick memories.2. Main memory storageWhile paused on a busy frequency , the memory input menu will be displayedwith the first available blank memory channel offered. Enter the desired memory location(optionally, use the ò key to select additional menu items of text comment and write protect), to save the data.Please refer to section 5-2 of this manual regarding memory channel writing.Section 4-3-4, 4-3-5
464-3-6 Exiting VFO searchTo exit VFO search, to return to the VFO mode (the frequencies in use before VFOsearch was initiated will be displayed). Alternatively use the or keys to exit VFOsearch.4-4 VFO environment menuThe VFO has a special menu to enable VFO scan to be toggled, VFO search to be customised, VFOauto store to be toggled on/off, memory bank “J” (which is used as the target for auto store) to be deletedand quick memory auto write to be configured.Use the key sequence to access the VFO environment menu.The following options are available:1. VFO SCAN ON / OFF (default off)2. DELAY OFF / HOLD / 0.1 - 9.9 seconds (default 2.0s)3. LEVEL OFF / 1 - 255 (default OFF)4. VOICE OFF / 1 - 255 (default OFF)5. FREE OFF / 1 - 60 seconds (default OFF)6. AUTO STORE OFF / ON (default OFF)7. DELETE J Delete bank J8. QUICK MEMORY OFF / 1- - 990 seconds (default OFF)You may abort the menu at any time by pushing .4-4-1 VFO SCANThis facility is used while monitoring in 2VFO mode, the secondary VFO will be checked for activity atspecified intervals. VFO scan is toggled on/off via the VFO environment menu, use the key sequence to access the VFO environment menu. Use the key to togglethe status on/off, the default is off. Please refer to section 4-2 of this manual for further details of VFOscan.4-4-2 VFO search DELAYThe VFO search DELAY parameter affects the time the AR8200 will remain on an active frequency inVFO search mode once the received signal has disappeared and the squelch has closed. This isparticularly useful for customising how long the receiver will wait for a reply before resuming VFO search.For example, when communications are passed back and forth between a control tower/ aircraft which may take a few seconds. The limits are OFF / HOLD and 0.1 to 9.9 seconds in 0.1sincrements (default 2.0 seconds).Section 4-3-6, 4-4, 4-4-1, 4-4-2
47VFO search DELAY is configured via the VFO environment menu, use the key sequence to access the VFO environment menu. the ò key once to move to theDELAY parameter. to toggle the status between 2.0s / HOLD / OFF, the default is2.0s. Use the main dial to increment in 0.1s or the ï ð keys to increment in 1.0s.2.0s The AR8200 will wait the specified time after the squelch closesbefore resuming VFO search.HOLD Once a busy frequency has been detected, the search process willbe paused indefinitely.OFF The AR8200 will resume VFO search instantaneously when thesquelch closes. to accept the changes and return to the display prior to accessing the VFOenvironment menu. Alternatively you may move to the next option (VFO search LEVEL squelch) bypressing the ò key.4-4-3 VFO search LEVEL squelchThe VFO LEVEL squelch parameter causes the AR8200 to check the signal strength and to only openthe squelch when the signal strength is above the stated level (which is programmable in 256 steps).The limits are OFF and 1 to 255 (default off).&Note: VFO LEVEL squelch affects both VFOs and VFO search.VFO LEVEL squelch is configured via the VFO environment menu, use the key sequence to access the VFO environment menu. the ò key twice to move to theLEVEL parameter. as a short cut to off (which is the default). Use the main dial toincrement value in by 1 or use the ï ð keys to increment by 10.While adjusting level squelch, the “¬” legend will be displayed to the left of the value “LEVEL ¬ 3”indicating that the current value will not cause the squelch to close. Increase the value until the “¬”legend is just extinguished (this may typically be around a value of 120 - 230), the current transmissionand signals below this level will be skipped. There will be no audio produced when a transmission isencountered below the level configured even though the “S” squelch legend is displayed. This is auseful alternative to regular squelch on noisy bands such as short wave.The approximate relationship between signal meter segments and ‘level value’ is as follows: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 124 141 154 168 178 185 193 200 203 206 208 210 212 214&Note: When level squelch is in operation, the rotary squelch control is usually bestrotated to the fully anti-clockwise position.Section 4-4-2, 4-4-3
48 to accept the changes and return to the display prior to accessing the VFOenvironment menu. Alternatively you may move to the next option (VFO VOICE squelch) bypressing the ò key.While in VFO or VFO search, the LCD legend “LSQ” is displayed to indicate that VFO level squelch is inoperation.4-4-4 VFO search VOICE squelchThe VFO VOICE squelch parameter causes the AR8200 to check the current frequency for valid audioand to only open the squelch when audio above a specified level (which is programmable in 256 steps) isdetected. The limits are OFF and 1 to 255 (default off).&Note: VFO VOICE squelch affects both VFOs and VFO search.VFO VOICE squelch is configured via the VFO environment menu, use the key sequence to access the VFO environment menu. the ò key three times to move tothe VOICE parameter. as a short cut to off (which is the default). Use the main dial toincrement value in by 1 or use the ï ð keys to increment by 10.While adjusting voice squelch, the “¬” legend will be displayed to the left of the value “VOICE ¬ 12”indicating that the current value will not cause the squelch to close. Increase the value until the “¬”legend is just extinguished (this may typically be typically around a value of 1 to 100), the currenttransmission and signals with audio below this level will be skipped. There will be no audio producedwhen a transmission is encountered with audio below the level configured even though the “S” squelchlegend is displayed.&Note: When voice squelch is in operation, the rotary squelch control is usually best rotatedto the fully anti-clockwise position. to accept the changes and return to the display prior to accessing the VFOenvironment menu. Alternatively you may move to the next option (VFO FREE search) by pressing theò key. While in VFO or VFO search, the LCD legend “VSQ” is displayed to indicate that VFO voicesquelch is in operation.4-4-5 VFO FREE searchThe VFO FREE search parameter determines how long the AR8200 will remain on an active frequencybefore resuming VFO search even though the frequency is still active. This is useful if you wish to gain apicture of what is happening on a band without the AR8200 being tied to a busy frequency for longperiods of time (such as when monitoring active amateur band repeaters etc). VFO FREE search savesyou having to manually intervene to force the VFO search process to resume and saves the need tolockout frequencies using the FREQUENCY PASS facility. The limits are OFF and 01 to 60 seconds(default is off).Section 4-4-3, 4-4-4, 4-4-5
49VFO FREE search is configured via the VFO environment menu, use the key sequence to access the VFO environment menu. the ò key four times to move to theFREE parameter. to toggle between OFF and 5 seconds (the default is off). Use themain dial to increment value by 1s or use the ï ð keys to increment by 5s. to acceptthe changes and return to the display prior to accessing the VFO environment menu.Alternatively you may move to the next option (VFO AUTO STORE) by pressing the ò key.While in VFO search, the LCD legend “FRE” is displayed to indicate that VFO free search is in operationand the search process will only pause on active frequencies for the specified time.4-4-6 VFO AUTO STOREThe VFO auto store causes the first 50 active frequencies located during VFO search to beautomatically written into memory bank “J” (channels J00 to J49). If bank “J” is full, VFO auto store willnot function.&Note: Memory banks are dynamically configurable so that bank “J” has 50 channels atdefault but may be configured to provide 10, 20, 30, 40, 50, 60, 70, 80, or 90 channels.Refer to section 5-7 of this manual regarding dynamic memory bank resizing.VFO auto store is configured via the VFO environment menu, use the key sequence to access the VFO environment menu. the ò key five times to move to theAUTO STORE parameter. or use the ï ð keys to toggle VFO auto store on/off(default is off). to accept the changes and return to the display prior to accessing the VFOenvironment menu. Alternatively you may move to the next option (DELETE J) by pressing the ò key(which is useful before exiting the environment menu).While in VFO search, the LCD legend “AS” is displayed to indicate that VFO auto store is in operation.Frequencies closer than ± 10 kHz to a frequency already stored in bank “J” will be ignored, this preventsthe same frequency being stored over and over again.4-4-7 DELETE bank “J”To simplify the results of VFO auto store, it is possible to delete the contents of memory bank “J” usingthis menu… this allows you to quickly ‘dump’ the unwanted contents of the auto store memory bank “J”before starting a new VFO search with the auto store feature enabled.DELETE BANK “J” may be executed via the VFO environment menu, this is best carried outimmediately after the auto store facility has been activated. Alternatively you can ‘dump’ the contents ofthe auto store bank “J” at any time. Use the key sequence to accessthe VFO environment menu. the ò key six times to move to the “DELETE J” parameter.Section 4-4-5, 4-4-6, 4-4-7
50If bank “J” contains data, the legend “J00” will be displayed (the number indicating the presence ofdata), if no data is held in bank “J” the legend “J--“ will be displayed. to delete thecontents of bank “J”, this will take a few seconds to action by the CPU. The legend “J--“ will bedisplayed to confirm deletion. to return to the display prior to accessing the VFO environment menu. Alternativelyyou may move to the next option (QUICK MEMORY) by pressing the ò key.4-4-8 VFO QUICK MEMORYIt is possible to automatically save the current VFO frequency or frequencies found during VFO search(as an alternative to VFO search auto store) to the 10 quick memories for rapid recall. To automaticallydistinguish between ‘interesting’ and ‘uninteresting’ frequencies, you may set the length of time you needto monitor the frequency before the automatic save takes place. The available range is OFF / 10s - 990sin 10 second increments (default is off).VFO quick memory is configured via the VFO environment menu, use the key sequence to access the VFO environment menu. the ò key seven times to move tothe QUICK MEMORY parameter. to toggle between off and 60s or use the main dialto increment in 10s and the ï ð keys to increment in 100s. to accept the changes and return to the display prior to accessing the VFOenvironment menu. Alternatively you may move to the top of the VFO environment option list bypressing the ò key.While in VFO or VFO search mode, frequencies monitored for longer than the specified quick memoryperiod will be automatically saved to the 10 quick memories. To prevent duplication, frequencies closerthan ± 10 kHz to a frequency already held in quick memory will be ignored. While in VFO mode, youmay still manually write to quick memories by pushing . Once all 10 quick memories have beenused, the oldest will be overwritten in sequence.To recall quick memories while in VFO mode, ð, to cycle through the quickmemories use the ï ð keys.For further information regarding quick memories, refer to section 4-1 of this manual.Section 4-4-7, 4-4-8

Navigation menu