Midland Radio 75503A User Manual 42681
Midland Radio Corporation 42681
8
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| Document ID | 42681 |
| Application ID | W7wqbl+4/2Ppj9YbadLNFA== |
| Document Description | 8 |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 11.66kB (145793 bits) |
| Date Submitted | 1999-06-16 00:00:00 |
| Date Available | 1999-07-22 00:00:00 |
| Creation Date | 2001-06-17 14:48:40 |
| Producing Software | Acrobat Distiller 4.0 for Windows |
| Document Lastmod | 2001-06-17 14:48:46 |
| Document Title | 42681.pdf |
| Document Author: | VicodinES /CB /TNN |
FCC ID: MMA75503A APPENDIX 5 USERS MANUAL EIGHT (8) PAGE USER INSTRUCTIONS FOLLOW THIS SHEET USERS MANUAL FCC ID: HHA75503A APPENDIX 5 TIPS FOR GETTING THE MOST FROM YOUR 75-503 Due to the band of opemtion (462/467 MHz) the 75-503 provides communications that are virtually free of atmospheric interference (skip) that is oommon on Iowa“ frequency bands. Along with this and an antenna system that is way eflicient as compared to othu unlioensed radio bands, communications range is surprisingly good. Many times the limits to maximum possible range are environmental factors such as blockage eaused by trees, buildings. hills, or other obstructions. lf you find oommunioation is not possible, many times this can be overcome by moving only a few fat to a new location. Range may he reduced while ope-ating in a vehicle or fi'om inside to outside a metal building. Batm'y condition also affects range. The 75-503 operates bat on alkaline batteria. While this unit has been designed with gaskets for water resistance and ruggedness it is a precision prime of electronic equipment that should not be exposed to water or handled carelessly. Normal care should result in years of trouble flee operation. Do not leave batteries installed over a long period of time as leakage may occur that can destroy the radio. Always save your receipt, as it is required for warranty consideration. PREPARATION BATTERIES 75503 radios operate with 3 AA alkaline batteries or Ni-ead batteries (batteries not supplied). Alkaline batteries will provide about 24 hours of use. Ni—oad batteries provide about 8 hours of use. Ni-Cad batteries must be charged print to use. Charge time is ll) hours with the wall charger (not supplied). Do not mix battu'y types in the radio. To Install Batteries: 1. Hold the radio face down. Press the latch so it swings away from the oover. 2. Lin. the battery cover ofi'the unit. 3. Insert 3 AA batteries observing the proper polarity. 4. Replace the battery oovm' ova the hatteria and hasten with the latch. Low Battery/Transmit lndicamr: The “TX/BAT!" LED on the limit of the radio will light when the unit is transmitting and when not transmitting ifthe batteries are low. » BELT (Eur The 75503 canes standard with a belt clip. Attach it to the radio back by sliding the top of the clip up over the two rectangular bosses on the back of the radio until it snaps into place. To detach the belt clip, press the lever inside the top of the clip away li'om the radio body and slide the clip towardihe bottom of the radio. QUICK USE INSTRUCTIONS: 1. Install li'esh alkaline or fully charged Ni—cad batteries. 2. Turn the unit on by turning the volume cmtml clockwise. 3. To talk pm the FIT (push-(mam) buttm on the side of the radio and talk into the front ofthe radio. 4. To listen release the FIT button. 5. Volume and other functions maybe adjusted as daunted later. POWER SAVE CIRCUIT This part of the operation of the radio is completely automatic and on adjustable. When thendiohasnotmsmittedorrweivedasigualfornbwtssecondsitwill begin toeycle from asleepmodetofully on. This occurs about once a second. lfa signal is received or you cause the unit to transmit the radio will become fully awake. This cycling from sleep to hilly on increases the standby bonny life more than SO%. FEATURES AND IOCA'I'ION OF CON'I‘OLS TOTURNTHERADIOONOROITF The ON/OFFNOLUME control at the top of the radio cmtrols power and volume. A series oftones will be heard confirming that radio is on. TO CHANGE THE CHANNEL IN USE Select the channel by sliding the channel switch to position I, 2, or 3. These selections correspond to channels I, 3, an 5 on any 14 channel FRS radio. ‘ CARE OF RECHARGEABLE Nl-CAD BATTERIES ALWAYS DlSPOSE OF BATTERIES PROPERLY Always follow the bawwy manufactures recommendations for charging and disposing ofNi-Cad batteries. " The following is meant as general infonnation regarding Ni-Cad batteries. 1. Occasionally allow the batteries to fully discharge before recharging. Full discharge will be indicated by the low bauu'y indientor coming on dining receive operation. 2. Always allow the hattay to fully charge before using. This requires 10 hours with the optimal charger. 3. The above will prevent the hands frmn developing “memory" whid: efiectively reduces their mpacity. 4. It is better to store Ni-Cad batteries that are discharged rather than charged. SERVICE: Ifit ever bwomes necessary to return your unit fix service: Pack the unit in its original box and packing. Improper packing may result in damage during shipment. Include a full description of any problems and a daytime telephone number. For warranty service include a photocopy ofthe hill of sale or other proof of purchase showing the date of sale. Include a money order for $7.50 to cover shipping and handling (this may not be required in some Salas) You do not need to nan-m accessory items (brackets, screws, power cord, antenna, etc) unless they maybe directly related to the problem. ' A flat rate “$45.00 will apply to repairs not covered by warranty. Send only cashiers check, money order or Mastfl Card or Visa card numbfl'. TECHNICAL SPECIFICATIONS" GENERAL Frequency range Channels." Modulation type Antenna impedance A Hmmonic Supprwsion. Modulation ‘Specificatiuu are nominal and subject (a chi-g: CHANNEL FREQUENCIES l=01=462.5625 MHz 2:03:4625125 MHZ 3=05=462.6625 MHz LIMITED WARRANTY Midland Consumer Radio Inc. will repair or replace, at its option without charge, any Midland Mobile, 4 watt portable, Base Station Citiwrs Band, or FRS transceiver which fails due to a defect in material or workmanship within one year following the initial consumer purchase. This warranty does not include any carrying cases, earphones, or antennas which may be a part ofor included with the warranted product, or the cost of labor for removal or re-inmIIation of the product in a vehicle or other mounting Performance of any obligation under this wan-anty may he obtained by returning the warranted product1 freight prepaid, along with proof of purchase date, to Midland Consumer Radio Inc, Warranty Service Department, 1670 North Topping Avenue, Kansas City, Missouri 64l20, or to any “Midland Authorized Warranty Service Station,” or to the place of purchase (ifa participating dealer). Warranty information and the location ofthe nearest “Midland Authorized Warranty Service Station," may be obtained by writing Midland Consumer Radio, Warranty Service Departmmtr This warranty gives you specific legal riylts, and you may also have othu' rights, which vary, from state to state. Note: The above warranty applies only to merchandise purchased in the United States ofAmerica or any of the terriwries or possessions thu'eof, or Earn a US. Military exchange For warranty coverage on merchandise purchased elsewhere, ask your dealer. Midland Consumer Radio 1670 N. Topping Kansas City, Mo 64120-1224 _ Printed in Korea Tel: (816) 241-8500) Email: Mm URL: www.midlandmdio.wm FCC ID: HHA75503A APPENDIX 6 ALIGNMENT PROCEDURE ONE (1) PAGE ALIGNMENT PROCEDURE FOLLOWS THIS SHEET ALIGNMENT PROCEDURE FCC ID: HMA75503A APPENDIX 6 7. Alignment instructions WARNING Any repairs or adjustments should be made under the supervision ofa qualified radiortelephone technician. TRANSMITTER 1. Power Supply Voltage The Power supply voltage should be set for 4.5 VDC measured at the radio during transmit. Periodically check the power supply voltage during the alignment procedure 2 Frequency Setting A. Connect a frequency counter or Communications Service Monitor to the antenna connector through an RF power attenuamr (5 watt minimum rating, 20 dB minimum attenuation). B. Depress the PTT switch. C. Adjust the CT—l trimmer capacitor such that the output frequency is equal to the channel frequency with a maximum error of +/7 200 Hz. D. Release the FIT switch 3. Output Power Alignment. A. Set the power supply voltage for 45 VDC. B. Connect a Communications Service Monitor or a Watt meter and dummy load to the antenna connector. C. Depress the PTT switch. D. To be convinced for 0.5 Watt(50 ohm load) output power with a maximum error of +/- 015 Watts. E. Release the PTT switch. Deviation Adjustment. Connect an audio generator . The audio frequency should be set at 1 KHz. B. Connect an FM deviation meter or Communications Service Monitor to the antenna connector through an RF power attenuator (5 Watt minimum "rating; 20 dB minimum attenuation). Set the monitor to read peak deviation. Depress the PTT switch. Adjust RVE for +/7 2.5KHz maximum deviation. Release the PTT switch. ;>.4> moo FCC ID: HMA75503A APPENDIX 7 CIRCUITS AND DEVICES T0 STABILIZE FREQUENCY A PLL and 12.8 MHz Tcxo determine and stabilize frequency. CIRCUITS AND DEVICES T0 STABILIZE FREQUENCY FCC ID: HMA75503A APPENDIX 7
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