CalAmp Wireless Networks GPDB Gemini/PD User Manual Gemini PD Technical Manual

CALAMP WIRELESS NETWORKS INC. Gemini/PD Gemini PD Technical Manual

preliminary version

GeminiPDMobile RadiomodemInstallation GuideVersion 1.46Preliminary – For Internal Use OnlyThe entire contents of this manual and the Radio Installation Softwaredescribed in this manual are copyright 2002 by DATARADIO Inc.Copyright DATARADIO Inc.March, 2002Part no.: 120 20110-146
Table of Contents1. PRODUCT OVERVIEW................................................................................................................................... 11.1 INTENDED AUDIENCE ....................................................................................................................................... 11.2 GENERAL DESCRIPTION .................................................................................................................................... 11.2.1 Features .................................................................................................................................................. 11.2.2 Configuration.......................................................................................................................................... 1FACTORY TECHNICAL SUPPORT ................................................................................................................................21.3 PRODUCT WARRANTY ...................................................................................................................................... 21.4 REPLACEMENT PARTS....................................................................................................................................... 21.4.1 Factory Repair........................................................................................................................................ 21.5 UNPACKING ...................................................................................................................................................... 22. INSTALLATION ............................................................................................................................................... 32.1 PLANNING THE INSTALLATION .......................................................................................................................... 32.1.1 Overview ................................................................................................................................................. 32.1.2 Location .................................................................................................................................................. 32.1.3 Cable Path............................................................................................................................................... 32.2 WARNINGS........................................................................................................................................................ 32.2.1 RF Radiation warning............................................................................................................................. 32.2.2 Interference with vehicular electronics................................................................................................... 32.2.3 Secure mounting...................................................................................................................................... 42.2.4 Explosive environments........................................................................................................................... 42.2.5 Installation in vehicles powered by liquefied gas. .................................................................................. 42.3 PHYSICAL UNIT................................................................................................................................................. 42.3.1 Recommended tools and supplies............................................................................................................ 42.3.2 Physical mounting of GeminiPD............................................................................................................... 42.4 ELECTRICAL INSTALLATION .............................................................................................................................. 52.4.1 Electrical requirements........................................................................................................................... 52.4.2 Routing of power cable ........................................................................................................................... 52.5 ANTENNA ......................................................................................................................................................... 72.5.1 Recommended tools and supplies............................................................................................................ 72.5.2 Planning.................................................................................................................................................. 72.5.3 Antenna Installation................................................................................................................................ 82.6. COMPLETING THE PHYSICAL INSTALLATION. ................................................................................................ 82.7. CHECKING OUT NORMAL OPERATION ........................................................................................................... 83. OPERATING DESCRIPTION ......................................................................................................................... 93.1 FRONT & REAR PANELS ................................................................................................................................... 93.2 DTE PORT INTERFACE ................................................................................................................................... 103.2.1 RS-232 Interface Signal Levels............................................................................................................. 104. WINRIS PROGRAM....................................................................................................................................... 114.1 OPERATION..................................................................................................................................................... 114.2 TO CONNECT AND START WINRIS .................................................................................................................. 114.3 WINRIS WINDOW........................................................................................................................................... 124.4 PORT CONFIGURATION WINDOW .................................................................................................................... 134.5 FUNCTIONS ..................................................................................................................................................... 134.5.1 “Station Reset” button.......................................................................................................................... 134.5.2 Configuration to a file........................................................................................................................... 134.5.2.1 “Get” button ..................................................................................................................................................144.5.2.2 “Get As” button.............................................................................................................................................144.5.3 Configuration from a File..................................................................................................................... 144.5.3.1 “Put From” button.........................................................................................................................................14
120 20110-146 - Preliminary ii GeminiPD Installation Guide4.5.4 Special Functions.................................................................................................................................. 144.5.4.1 Banner Field..................................................................................................................................................144.5.4.2 Comments......................................................................................................................................................154.5.4.3 Password .......................................................................................................................................................154.5.5 Test Functions....................................................................................................................................... 154.5.5.1 DSR signal is High indicator.........................................................................................................................154.5.5.2 CTS signal is High indicator .........................................................................................................................164.5.5.3 Channel Selection..........................................................................................................................................164.5.5.4 RSSI & Power Out Indicators .......................................................................................................................164.5.5.5 TXON tests....................................................................................................................................................164.5.5.5.1 Unmodulated Carrier................................................................................................................................164.5.5.5.2 Modulated Carrier ....................................................................................................................................174.5.5.6 Random Dataradio.........................................................................................................................................174.5.5.7 Square Wave .................................................................................................................................................174.5.5.8 Addressing and Test ......................................................................................................................................174.5.6 GPS Information ................................................................................................................................... 184.5.7 Status Bar.............................................................................................................................................. 185. TROUBLE-SHOOTING AND TESTING ..................................................................................................... 195.1 EQUIPMENT REQUIRED ................................................................................................................................... 195.2 BASIC TESTS................................................................................................................................................... 195.3 GPS TEST....................................................................................................................................................... 196. SPECIFICATIONS.......................................................................................................................................... 21FIGURE 1 - MOUNTING PLATE AND SLOT DIMENSIONS.................................................................................................... 5FIGURE 2 - BRACKET INSTALLATION.............................................................................................................................. 5FIGURE 3 - DC POWER CONNECTOR.............................................................................................................................. 6FIGURE 4 - ANTENNA SPACING....................................................................................................................................... 7FIGURE 5 - FRONT AND REAR PANELS ............................................................................................................................ 9TABLE 1 - GEMINIPD LEDS INDICATIONS.................................................................................................................... 10TABLE 2 - RS-232 SIGNAL LEVELS.............................................................................................................................. 10TABLE 3 - CARRIER MODULATION............................................................................................................................... 17TABLE 4 - TESTS, FULL & HALF CHANNEL UNITS ....................................................................................................... 20APPENDIX 1 - "OFFICER REQUIRES ASSISTANCE" ALARM FUNCTION.................................................................... 23
120 20110-146 - Preliminary iii GeminiPD Installation GuideWhat's New in this versionHistoryVersion 1.46 (Preliminary), March 2002Following sections are amended to show the capability of 25.6 and19.2kb/s bitrates in channels spaced at 12.5 kHz (half band or NPSPAC)- Section 1.2.1 Features- Table 3 Carrier Modulation- Table 4 Tests, Full & Half Channel Units- Section 6 SpecificationsVersion 1.45b (Preliminary, January 2002Section 4 “WinRIS” rewrittenMultiple minor changes to match revised Paragon and ParagonPD technicalmanualsVersion 1.45a (Preliminary), December 2001Removed IC class II permissive change note and updated data.Section 1.2.1 FeaturesTable 3 Carrier ModulationTable 4 TX DeviationVersion 1.44 (Preliminary), November 2001Following sections are amended to show 32 kbps bitrates with RC4FSKmodulation in 25kHz channel spacing bit rates for 800MHz band.- Table 3 Carrier Modulation- Table 5 Tests, Full & Half Channel Units- Section 6 Specifications, emission designatorsVersion 1.43 (Preliminary), October 2001Following sections are amended to show 32 kbps bitrates with RC4FSKmodulation in 25kHz channel spacing bit rates.- Section 1.2.1 Features- Table 3 Carrier Modulation- Table 5 Tests, Full & Half Channel Units- Section 6 Specifications
120 20110-146 - Preliminary iv GeminiPD Installation GuideVersion 1.42 (Preliminary), April 2001Following sections are amended to show SRRC4FSK 12.5kHz channel spac-ing bit rates.- Section 1.2.1 Features- Table 3 Carrier Modulation- Table 5 Tests, Full & Half Channel Units- Section 6 SpecificationsVersion 1.41, March 2001• Section 2.5 “Antenna” and Figure 4 “Antenna spacing” amended to showFCC’s RF Exposure Guidelines for increased Duty Cycle.Version 1.40, December 2000• Supporting footnotes for Gemini/PD Lite model (No GPS option) added.• Section 3.2, function of DE-9F pin 9 (Aux input) corrected andclarified.• Section 4.0, re-written to support the WinRIS program.• Section 5.0, Table 5, step 4, values revised.• Section 6.0, MIL Specifications limitations note added.• Appendix 1, clarification of “Officer Requires Assistance” alarmfunction added.Version 1.32, October 2000• Updated UHF units specifications:- Table 3 "Carrier Modulation"- Table 4 “Tests, Full & Half Channel Units”- Section 6 “Specifications”.Version 1.31, August 2000• Introduction of 25.6 Kbps model. Relevant changes made to:- Section 1.2.1 “Features”- Table 3 “Carrier Modulation"- Table 4 “Tests, Full & Half Channel Units”- Section 6 “Specifications”.- Emission designators table added to Section 6 “Specifications”.
120 20110-146 - Preliminary vGeminiPD Installation GuideVersion 1.30, August 2000• Power output specifications for 800MHz model added to section 1.2.1“Features”.• Main transceiver Output Power for 800MHz model added to:Table 4 “Tests, Full and Half Channel Units” and minimum value ed-ited in the footnote.• Title of section 4.4.4.2 edited to specify that RSSI Indicator alsoserves as power meter. Note added to establish that the internalwattmeter is not to be interpreted as a precision instrument.• Section 4.4.4.3.1 “Unmodulated Carrier” edited to show 800MHz modelpower check nominal forward wattage.• Section 2.4.2 “Routing of Power Cable”, step no. 7, clarification ofnegative wire connection.Version 1.20, June 2000:• LED indication explanation for the 800MHz (2% duty cycle limit)model added as a footnote to table 1 and to section 5.3 GPS Test.• Section 2.5 “Antenna” rewritten and now including more details con-cerning “Planning” and has a new antenna spacing drawing.• More details added to section 4.2 concerning starting of the WinRISprogram from MS-Windows.• Environmental MIL spec added• FCC Certification number added to Specifications section.Version 1.10, March 2000:Addition of 800MHz specifications, revision to paragraph 2.2.1 - RFRadiation Warning and to paragraphs 2.5 through 2.5.3. – Antenna in-stallation.Version 1.0, January 2000:First released version
120 20110-146 - Preliminary vi GeminiPD Installation Guide Definitions The following terms are used throughout this document. Item Definition DCE Data Communications Equipment. This designation defines the direction (inputor output) of the various RS-232 interface signals. Modems are always wired asDCE. DTE Data Terminal Equipment. This designation defines the direction (input or out-put) of the various RS-232 interface signals. Most user equipment, as well asPCs, are wired as DTE. GCU GeminiPD Control Unit board GeminiPD High specs mobile radiomodem. PD = Parallel decode GeminiPD Lite GeminiPD without GPS feature HDX Half Duplex. A unit that uses separate transmit and receive frequencies, butwhich may not transmit and receive simultaneously. RS-232 Industry–standard interface for data transfer. Simplex A unit which uses the same frequency for transmit and receive.WinRIS Windows © Radio Installation Software. This software allows basic tests andunit configuration.
120 20110-146 - Preliminary GeminiPD Installation Guide11. PRODUCT OVERVIEWThis document provides the informationrequired for the installation, operation andverification of the DATARADIO GeminiPDmobile radiomodem.1.1 Intended AudienceThis document is designed for use by engi-neering design, installation, and mainte-nance personnel.1.2 General DescriptionGeminiPD is a mobile radiomodem aimed atthe public safety and public utility markets tomeet demand for high speed and highthroughput. It integrates all the necessaryhardware for data-only vehicular installationsup to but not including the laptop PC and itsapplication software.Example of applications are:1. Database inquiry systems.Small number of brief messages, (usu-ally from the mobile station) with fairlylong responses.2. Computer-aided dispatch (CAD).Large number of messages, (usuallyfrom the base station) with very briefresponses.3. Automatic Vehicle Location (AVL).Using built-in GPS receiver, determinesposition, speed and direction of fleetmembers.The GeminiPD is made-up of:• A main transceiver• A auxiliary receiver for Parallel Decode(PD)• A 40-Watt power amplifier (35-Watt for800 MHz model),• A GeminiPD Control Unit (GCU) withDSP driven modem• An optional integrated OEM GPSreceiver.1 1 The GeminiPD Lite model has no GPS.1.2.1 Features• One-piece integrated design in a ruggeddie-cast aluminum chassis.• Parallel Decode (PD) technology (patentpending) featuring dual receivers foradded decode sensitivity in multi-pathand fading environments.• Sophisticated DSP-based modem designprovides added system performance,fewer retries and more effectivethroughput.• Automatic channel changing for im-proved roaming capabilities.• Built–in, up to 16-channel flash –EEPROM programmable synthesizedradio transceiver with automaticchannel selection.• Models with on-air data speeds andmodulation types as follows:- DGFSK2 modulation, rates of 9600to 19200 b/s in 12.5 or 25 kHzchannel spacing (9600 b/s maxi-mum in half channels).or- xRC4FSK2 modulation, rates of32.0, 25.6, and 19.2 kb/s in 25 kHzor 25.63, 19.2, 16.0, and 14.4 kb/s in12.5 kHz channel spacing.• 3 available user ports using standardRS-232 interface via built-in multi-plexer.• Half-duplex or simplex operation.• Out-of-band signaling enables transmis-sion of GPS1 reports with no effect onsystem performance.• Back compatible with MobilPac/R(DGFSK)2 at 9600 and 19200 b/s.1.2.2 ConfigurationGeminiPD is factory configured based oneach customer network system require- 2 Networks must use common modulation, bitand baud rates.3 NPSPAC only
120 20110-146 - Preliminary GeminiPD Installation Guide2ments, usually by Dataradio System Engi-neering. Configuration is not changeable inthe field without notifying Dataradio.Factory Technical Support The Technical Support departments ofDATARADIO provide customer assistance ontechnical problems and serve as an interfacewith factory repair facilities. They can bereached in the following ways: DATARADIO Inc. 5500 Royalmount Ave, suite 200 Town of Mount Royal Quebec, Canada H4P 1H7 Technical support hours: Monday to Friday9:00 AM to 5:00 PM, Eastern Time phone: +1 514 737-0020fax: +1 514 737-7883Email address: support@dataradio.com or DATARADIO Corp. 6160 Peachtree Dunwoody RD., suite C-200 Atlanta, Georgia 30328 Technical support hours: Monday to Friday8:30 AM to 5:30 PM, Eastern Time phone: 1 770 392-0002 fax: 1 770 392-9199 Email address: drctech@dataradio.com1.3 Product Warranty Warranty information may be obtained bycontacting your sales representative.1.4 Replacement Parts This product is not field serviceable, exceptby the replacement of a complete unit. Spe-cialized equipment and training is requiredto repair the GCU board and radio modules. Contact Technical Support for service in-formation before returning equipment. ATechnical Support representative may sug-gest a solution eliminating the need to returnequipment.1.4.1 Factory Repair When returning equipment for repair, youmust request an RMA (Returned MaterialAuthorization) number. The Tech Supportrepresentative will ask you several questionsto clearly identify the problem. Please givethe representative the name of a contact per-son who is familiar with the problem,should questions arise during servicing ofthe unit. Customers are responsible for shippingcharges for returned units. Units in warrantywill be repaired free of charge unless thereis evidence of abuse or damage beyond theterms of the warranty. Units out of warrantywill be subject to service charges. Informa-tion about these charges is available fromTechnical Support.1.5 UnpackingWhen ready for installation, carefully un-pack your GeminiPD kit (p/n 023 6000-001)shipping carton and identify each item aslisted below:• One GeminiPD• Installation mounting bracket• Power cable – 22 feet (6.7 meters)• Small parts kitIf damage has occurred to the equipmentduring shipment, file a claim with the carrierimmediately.
120 20110-146 - Preliminary GeminiPD Installation Guide32. Installation2.1 Planning the Installation2.1.1 OverviewTo ensure trouble-free, efficient installation,start by inspecting the vehicle to determinethe optimum position for GeminiPD and itsantennas as well as the routing of all associ-ated cabling and wiring.2.1.2 LocationOften, installations in cars are done in thetrunk, underneath the back window ledge oron the trunk floor. In vans and small trucks,it is usually done in the back of the vehicle.In large vehicles, it is often done in the frontcabin.Be sure to place the GeminiPD unit in such away that:• The LEDs can be seen (as an aid introubleshooting)• Access to the antenna DE-9 connectorsis possible without removing the unit• Sufficient air may flow around the unitto provide adequate coolingGeminiPD is not fully waterproof, thereforeit should be mounted sufficiently away froman opened trunk lid or opened tailgate, win-dows or doors to avoid exposure to rainand/or snow. It also minimizes the chancethat material can be accidentally thrown onthe unit or of someone bumping against it.2.1.3 Cable PathTry to route the cables away from locationswhere they would be exposed to heat (ex-haust pipes, mufflers, tailpipes, etc.), batteryacid, sharp edges, mechanical damage orwhere they would be a nuisance to automo-bile mechanics, the driver or the passengers.Keep wiring away from automotive com-puter modules, other electronic modules andignition circuits to help prevent interferencebetween these components and radioequipment.Try using existing holes in firewall andtrunk wall and the channels above and be-low or beneath the doors, channels throughdoors and window columns that are con-venient to run cables and wires.Whenever possible, install conduit in whichto run the cables.2.2 WarningsBefore starting installation, review all of thefollowing warnings.2.2.1 RF Radiation warningThe Federal Communications Commission(FCC), with its action in the GeneralDocket, 79-144, March 13, 1985, hasadopted a safety standard for the human ex-posure to radio frequency electromagneticenergy emitted by FCC-regulated equip-ment. Only proper installation of the trans-ceiver antenna of GeminiPD as summarizedin section 2.5 will result in user exposuresubstantially below the FCC recommendedlimits.Qualified personnel must do all antenna in-stallations. See paragraph 2.5.2 for recom-mended antenna positioning.Transmissions when persons or animals out-side the vehicle are within two feet of theantenna may result in radio energy radiationburns or related injuries.2.2.2 Interference with vehicularelectronicsCertain vehicle electronic devices may beprone to malfunction due to lack of protec-tion from radio frequency energy presentwhen transmitting. It includes, and is not limited to:- Electronic fuel injection systems- Electronic anti-skid braking systems- Electronic cruise control systems
120 20110-146 - Preliminary GeminiPD Installation Guide4If the installation vehicle contains suchequipment, consult the dealer for the makeof vehicle and enlist his aid in determiningif such electronic circuits will perform nor-mally when the radio is transmitting.2.2.3 Secure mountingFor vehicle occupant(s) safety, mountGeminiPD securely so that the unit will notbreak loose in case of an accident or violentmaneuvers.2.2.4 Explosive environmentsOperation of vehicular radio transmitters inexplosive environments may be hazardousand conventional safety precautions mustprevail. These include and are not limitedto:- Transmitting while fuelling the vehicle.Do not carry fuel containers in the samecompartment as GeminiPD.- Dynamite blasting caps may explodewhen transmitting radio operation takesplace within 500 feet. Always obey the“Turn Off Two-Way Radios” signsposted at sites where dynamite is beingused.If transporting blasting caps:a) Carry the blasting caps in an appropriatemetal container having a soft cushioninglining.b) Suppress transmissions whenever theblasting caps container is being loadedor unloaded into or from the vehicle.Check applicable local bylaws.2.2.5 Installation in vehiclespowered by liquefied gas.GeminiPD installations in vehicles poweredby liquefied petroleum gas with the LP-gascontainer in the trunk or other sealed-offspace within the interior of the vehicle mustconform to the National Fire Protection As-sociation Standard NFPA 58 which re-quires:- Space containing radio equipment shallbe isolated by a seal from the spacecontaining the LP-gas container and itsfittings.- Outside filling connections shall be usedfor the LP-gas container.The LP-gas container space shall be ventedto the outside of the vehicle.2.3 Physical Unit2.3.1 Recommended tools andsupplies• Electric drill for mounting holes• Hammer and center punch• Tie-wraps• Drills and circle cutters as needed ac-cording the size of screws (or nuts andbolts) used.• In-line “Power meter” capable of meas-uring forward and reflected power at theoperating frequency of the radio.2.3.2 Physical mounting ofGeminiPDStart by running all the cables (DC power,PC RS-232 as well as all antennas cabling)prior to mounting GeminiPD to assure thefeasibility of the planned cable routing. Besure to leave sufficient slack in each cableso the GeminiPD may be removed from themounting bracket for servicing with thepower applied and the antenna attached.GeminiPD is ready for installation.Cautions:• When drilling mountingholes, be careful to avoid dam-aging some vital part of the ve-hicle such as fuel tanks, trans-mission housing etc. Alwayscheck how far the mountingscrews extend below themounting surface prior to in-stallation.• Use of drill bit stops ishighly recommended.
120 20110-146 - Preliminary GeminiPD Installation Guide5• After drilling, remove allmetal shavings before installingscrews.• Do not overtighten self-tapping screws.1. Once you have found a suitable mount-ing position for GeminiPD, hold the unitand the unattached mounting bracket inthe proposed mounting position andcheck that there is clearance behind theunit for the heatsink, cables, etc. Checkthat the position provides a large enoughflat surface that the bracket will not bedistorted when installed.Figure 1 - Mounting plate and slot dimensions2. Using the installation bracket as a tem-plate, mark the four locations for drill-ing (see Figure 1). Again, ensure thatdrilling at the selected points is safe andwill not cause damage.3. Indent the drilling positions with a cen-ter punch.4. Drill holes sized for the self-tappingscrews or for the nuts, bolts and lockwashers used.Caution: Slightly reduce the size of thedrilled holes when using self-tappingscrews in thin metal.Figure 2 - Bracket installation5. Install the bracket without distorting.6. Securely mount GeminiPD to the in-stalled bracket using the four supplied8x40 black machine screws.7. Drill any additional holes as requiredfor routing all cables and fit holes withsuitable grommets or bushingswhenever required.2.4 Electrical installation2.4.1 Electrical requirementsGeminiPD is designed to operate from a13.8Vdc nominal car battery (negativeground) and requires currents up to 15.0A. Itwill tolerate a supply voltage range of 10.9volts to 16.3 volts.In vehicles with a 24 VDC electrical system(mostly in trucks), it is essential to provide asuitably rated 24/12 VDC converter to iso-late the unit from the battery and protect itagainst excessive voltage.Warnings:Application of more than 16.3 VDCwill damage GeminiPD and is notcovered by the warranty.Always disconnect GeminiPD’s DCpower lead before connecting asecond battery, using power fromanother vehicle or power boosting(e.g. when “jump starting” the ve-hicle).2.4.2 Routing of power cable1. Start by disconnecting the vehicle’sbattery unless specifically prohibitedfrom doing so by the customer, vehiclemanufacturer, agent or supplier.Note:In this event, exercise ex-treme caution throughoutthe installation and fit thefuse only when the installa-tion is complete.2. The 22 feet (6.7 meters) long powercable consists of three wires attached to2.5"6.0"1.0"0.2"
120 20110-146 - Preliminary GeminiPD Installation Guide6a Packard Electric “Weather-Pack” con-nector (DC power Connector).The DC Power connector has:• At position “A”, the smaller redswitch-sense wire (commonly to igni-tion)• At position “B”, the blue ground wire• At position “C”, a larger red B+ DCpower wire (MUST be unswitched)Figure 3 - DC Power Connector3. Place this connector at GeminiPD’s radiopower input location. Do not connect atthis time. See paragraph 2.6, “Com-pleting the physical installation”.4. Carefully route both the B and the Cwires to where the in-line fuse holderwill be installed, usually as close to thevehicle’s battery as practicable. Ensurethat leads do not chafe on any metalpart(s). Secure the wires at several lo-cations along their length.Caution:Use proper crimping tool.Common pliers are NOTacceptable.Warning:The DC Power lead must beunswitched5. Insert the negative (blue) lead into oneof the appropriate connector lug andcrimp solidly to force the metal contactsonto the wires.6. Repeat the step above for connecting thered DC power lead.7. Attach the positive lead at the batterypositive terminal. Attach the negativewire at the vehicle end of the batteryground cable.If the negative cable is connecteddirectly to the battery negativeterminal, it should be fused incase of failure of the vehicle’sground cable.Ensure tight and secure connections.8. Fasten the fuse holder and leads.9. Carefully route the A wire to where theconnection will be made for switchsensing.• Connect to “Ignition” if you wish tohave GeminiPD turning ON and OFFdependent on the vehicle’s ignitionkey.• Connect to “Accessory” if you wishGeminiPD to be available when theengine is not running, but still de-pendent on the ignition key.• Connect to a user-supplied controlswitch.• In installations equipped with a“ChargeGuard”, connect to thecontrolled-side of the ChargeGuard(remembering that the DC Powerlead must NOT be switched).10. Make appropriate connections.Cautions:Where scraping to bare metal wasrequired, and at the battery postswhere wire ends and lugs may beexposed, apply anti-corrosion com-pound.Insert the fuse only when installa-tion is complete and ready to test.11. At the GeminiPD position, neatly coilcable slack and attach securely.ABCIGNITION(Small red wire)GROUND(Blue wire)13.8VDC B+ (Fused Red wire) SEAL(DO NOT REMOVE)
120 20110-146 - Preliminary GeminiPD Installation Guide72.5 AntennaTo meet the FCC’s RF Exposure Guide-lines, the main transmitter antenna must bevehicle-mounted to provide a separationdistance of 50 cm or more from all personsand the antenna gain must not exceed 5dBto satisfy RF exposure requirements.2.5.1 Recommended tools andsupplies• circle cutter• hole saw or• socket punch for antenna• Mini-UHF Crimp tool2.5.2 PlanningReferring to Figure 4, GeminiPD commonlyuses three separate antennas:• “T” - Main transceiver -Constraints are Maximum PermissiveExposure (“MPE” on the drawing) lim-its of 50 cm (as per see section 2.5above) and omni-directional factors• “R” - Auxiliary receiver –Constraints are the receiver spacing ofat least 5/8 λ (wavelength) from trans-ceiver antenna and omni-directional re-quirements• “G” - Global Positioning System(GPS)*Constraints are TX spacing of at least24-in/60.96 cm from all transmittingantennas and a clear view of the sky.For the optimum antenna spacing at the fre-quency you are using, consult System Engi-neering.For installation of ground-plane dependentantennas, the center of the metal surfaceused for mounting is preferable for bestomni-directional pattern.For ground-plane independent antennas,installation may be close to the edges of thesurface.* The GeminiPD Lite model has no GPS.Figure 4 - Antenna spacingInstall the antennas in one of the followingpositions:- Most preferred for all antennas: center-line of roof. For transmitter antenna, itis the ONLY acceptable position.- Less preferred for receiver antenna:trunk lid, providing distance to trans-mitting antenna is respected whether lidis opened or closed.- Much less preferred, but permissible forreceiver antenna: left or right rear fend-ers, just in back of rear window- Least preferred, but permissible for re-ceiver antenna: left or right front fend-ers, ahead of windshieldNote: Proximity to other vehicle-mountedantennas may cause mutual inter-ference especially at higher fre-quencies.GMPE≥≥≥≥5/8λλλλ(UHF: 18"/46cm800MHz: 9"/23cm)RT50cm19.7in.≥≥≥≥24in.
120 20110-146 - Preliminary GeminiPD Installation Guide82.5.3 Antenna Installation1. Route good quality 50-ohm coaxial ca-bles (e.g. RG-223) from each of the se-lected antenna positions to the positionwhere the GeminiPD unit is mounted.2. Terminate the end at each of the antennapositions with the appropriate connectorfor the antenna used and make the con-nection.3. At the GeminiPD position, cut the threecables to length and terminate with theappropriate plug. For the transceiverand the auxiliary cables, use a Mini-UHF crimp plug using an appropriatecrimping tool. For the GPS, use a SMAconnector.4. Positively identify the transceiver mini-UHF plug and connect to the left rear ofGeminiPD.5. Positively identify the auxiliary receivermini-UHF plug and connect to the frontleft of GeminiPD to the RX position.6. Connect the SMA connector to theGPS* position below the auxiliary con-nector position.7. Do not skip this last step, trust us; it isan important one. To complete the in-stallation, tie-wrap together the auxil-iary and the GPS* antenna cables at apoint about two inches in front of theunit. It will be much easier hereafter tocorrectly identify which mini-UHF pluggoes where. You DO NOT want to crossthe auxiliary plug with the transceiverplug.2.6. Completing the physicalInstallation.To complete the physical installation andprior to testing GeminiPD:• Connect DC Power cable’s connector toGeminiPD’s until you hear a click as thetwo parts snap together.• Re-check that all other connections aresecure (antennas, PC, etc.)• Switch vehicle ignition ON.You are now ready to check for normal op-eration and to run the Radio InstallationSoftware (WinRIS) program for testing ortrouble-shooting.2.7. Checking out NormaloperationCheck that the vehicle ignition is ON.1. Check for proper operation of theGeminiPD’s LEDs as per Table 1 in sec-tion 3.12. Using the WinRIS program (describedin section 4) and an in-line wattmeter,check forward & reverse power to con-firm main antenna installation.3. Using the WinRIS, check the RF linkwith a base station that can be heard, seesection 4.5.5 “Test Functions”.If user application and its base stationare available, test the installation bygoing through a normal sequence oftransmitting and receiving messages.* The GeminiPD Lite model has no GPS.
120 20110-146 - Preliminary GeminiPD Installation Guide93. Operating Description3.1 Front & Rear PanelsThe front panel includes:• One mini-UHF type female antenna connector for the auxiliary receiver• One SMA type female connector for the GPS receiver (not installed on GeminiPD Lite model)• Two LED indicators• Three DE-9F RS232 portsThe rear panel includes:• One mini-UHF type female antenna connector for the main transceiver• One 3-pin pigtailed DC Power connector with ignition senseFigure 5 - Front and rear panels®RX TXPWR PGM PC/SETUPDEV-1DEV-2DEV-3RXGPSGemini/PD6.000"2.000"
120 20110-146 - Preliminary GeminiPD Installation Guide10Table 1 - GeminiPD LEDs indicationsGeminiPD LEDs indicationsPower-on Sequence (LEDs are paired) Normal Operation (LEDs are independent)PWR RX / TX Indication PWR Indication RX / TX IndicationRed Red Normal boot-up start(10 to 27 sec.) Green* Normal ready state Off No network activityAmber Off Then 8 seconds tocompleting boot-upNormalGreen Off Normal stateAmber* 1 Pulse/sec.Sufficient satellitesacquired by GPS Green Receiving packets“DBA sync” allows transmitRed Off Hardware failure Amber Receiving packets“DBA out-of-sync” preventstransmitErrorsSlowRed/Green Red Software failure(firmware erased) Red TransmittingSpecialFastRed/Green Red Programming inprogress* For 800MHz model (using 25% duty cycle limit) PWR lit Green / Flashing Amber = normal indication (GPS 1pulse persec.) PWR lit Amber / Flashing Green = exceeded duty cycle (GPS 1pps)3.2 DTE Port InterfaceFor all three ports:DE-9 Fpin # Function1DCD – from GeminiPD, normally asserted2 RXD – data from GeminiPD3 TXD – data to GeminiPD4 DTR – to GeminiPD, handshaking5 Ground6 DSR – from GeminiPD, tied to VCCthrough current limiting resistor7 RTS - to GeminiPD, handshaking8 CTS – from GeminiPD, handshaking9 AUX - auxiliary input to GeminiPD,(for port 2: “Officer requires assistance”Alarm input)It may be activated by (normally open) drycontact pull-up to the port’s DSR output. Itmay also tolerate user pull-up to external+12 VDC (car battery), but an isolated drycontact is preferred due to the risk ofnoise-related false alarms caused by thevehicle’s electrical system.A +3 to +12 V signal at this pin will send aDMP “x” (On) message to the base.An open or ground signal will send a DMP“y” (Off) message.Messages are only sent when a signaltransition occurs.See Appendix “A” on page 23 for furtherdetails.We recommend the use of a shielded 9-wire ca-ble with all pins connected. These ports can beused for unit configuration, maintenance & ad-justment as well to connect user applications.3.2.1 RS-232 Interface Signal LevelsIn the descriptions of data signals, the followingconventions are used:Table 2 - RS-232 Signal LevelsTerm Alternates Signal level1 asserted, spacing +3 to +15 VOFF dropped, marking -3 to -15 V
120 20110-146 - Preliminary GeminiPD Installation Guide114. WinRIS program1The Windows Radio Installation Software(WinRIS) program is used to:• Check and troubleshoot GeminiPD.• Save an existing configuration.• Upload files for field-configuring units (Re-quires intervention with technical support).To run the program, you will need:A PC or portable computer running a 32-bit MS-Windows application:(Each program copyright © Microsoft Corpora-tion. All rights reserved.)Win MEWin2000Win NTWin 9x(For Win 95, if COMCTL32.DLL has been up-dated to the most recent version and copiedto the \windows\system\ directory).Note:WinRIS does not operate under:Win CE (embedded in PocketPC)16-bit Windows 3.x- A hard disk.- An available COM port.- A serial mouse, with its own driver installedis strongly recommend however most ac-tions can also be done using keyboardcommand4.1 OperationThis support program can be run in MS-Windows © mode.DO NOT have more than one copy of this pro-gram loaded at any given time in separate win-dows. Doing so creates COM port sharing con-flicts and failure to run the program alone re-sults in unexpected transmissions. 1 For descriptions of features revised or added to Win-RIS versions later than 3.xx, please refer to the pro-gram’s context-sensitive help or type FIOnly left mouse button operation is supported.Any command or selection shown in gray is ei-ther unavailable or is awaiting another actionbefore activating.Help in the program is available at all points bypressing the F1 key. If a subject is highlighted,the help displayed will be context sensitive.4.2 To connect and startWinRISConnect a suitable 9-conductor straight RS-232cable, between the unit’s front-mountedPC/Setup port and the RS-232 port of the PC orportable computer that will be running Gem-ini.exe program.All families of MobilPac, GeminiPD’s, Paragonand ParagonPD products share a common Win-RIS program available on diskette, Dataradiop/n 980 03392-00n.Refer to the WinRIS Readme.txtfile for details on how to set theMS-Windows environment, andhow to connect, install and runthis program.In summary, before starting the WinRIS whenrunning MS-Windows, click on “Start”, then on"Run". Type the relevant path and variables onthe command line (or select by browsing) lead-ing to:WinRIS.EXE COM[x], [speed],8,n,1(where x is the PC COM port to be used) Ofcourse, the executable command may be usedalone without any variable added.Click on “OK”.It is also possible to create a PC desktop short-cut icon for WinRIS:In MS-Windows 98• Start by right clicking anywhere on thedesktop,• Select New,
120 20110-146 - Preliminary GeminiPD Installation Guide12• Select Shortcut and type the path as detailedabove directly on the command line (with orwithout variables).• Click Next,• Type in an applicable name for the shortcuticon,• Click Next• Select an icon (your choice) and• Click on Finish.In other MS-Windows Operating Systems, thisprocedure may vary slightly. If in doubt, checkthe manufacturer’s documentation.Command line settings override the environmentvariable, if any.Command line settings override the environmentvariable, if any.4.3 WinRIS WindowRefer to your version of WinRIS for its mainscreen appearance. WinRIS detects the productit is used with and the screen’s design adjusts tothe product’s particular structure. Future ver-sions will also introduce new features. The pro-gram’s context-sensitive help (or accessible viathe FI function key) is the best source of infor-mation on items not covered in this section.Generally, this program uses only one main dis-play screen. Placing the cursor over a Toolbar orButton generates a ScreenTip. Starting at thetop, the screen display is made up of:• A Menu bar, containing the menu nameslisted below. They give access to commandoptions. Unavailable commands are shownin light gray color. Shortcut keys are listedwhenever available. File menu lists the:- Put From command (Ctrl+O)- Get command (Ctrl+S)- Get As commandand below a command separator, the:- Exit command Test menu lists the:- Stationreset command- Modulated command- UnModulated command- Square Wave command- Random Data command View menu lists the:- Product ID command- Password command- Options command- Toolbar checked command- Status bar checked command Help menu lists the:- Help Topics commandand below a command separator, the:- About WinRIS command• A Toolbar row, located immediately belowthe menu bar containing buttons (eachbearing an icon) for commonly used tasks asfollows: Put From button Get buttonGet As buttonand to the right of a bar separator, the: About button and the Context-sensitive Help button• An Indicator and Button bar, located im-mediately below the Toolbar row, it con-tains two circular indicators DSR signal is High indicator CTS signal is High indicatorand buttons for commonly used tasks as follows. Station Reset button Product ID button Modulated TXON button Unmodulated TXON button Square Wave button Random Data button• A Product field, displays product type be-ing used after a connection to the producthas been established• A Data section, containing the Banner plusthe Comments and Password fields and theirrelated Put buttons.• A Channel(s) section, to select and activatea channel.
120 20110-146 - Preliminary GeminiPD Installation Guide13• A Test section, with Address and Devicefields, Send button and Chat window.• A Status bar, for displaying standard user-messages. Other messages appear in dialogwindow boxes or warning windows.• A GPS Information section, exclusive toGeminiPD.• An RSSI Bar Graph on the right side of thewindow is exclusive to GeminiPD.4.4 Port ConfigurationWindowAt program’s launch, WinRIS opens the “PortConfiguration window”.Enter the COM port and speed that should beused. The program defaults to 8 bits, no parityand one stop bit. Make necessary modifica-tion(s) to entries if needed and click on Save togo to main screen (a delay of several secondsmay occur). If COM port and speed are alreadysaved, the program automatically goes to themain screen.1. In the COM Port list box, select the COMport (1,2,3 or 4) to use for connection.Note: the COM Ports selections numbered 5to 32 are used (at factory) to upgrade sev-eral units from the same computer USBport.2. In the Baud rate list box, select the baud rateto use that matches your unit.3. Bits options are 7 or 8 (default)4. Parity options are None (default), odd oreven5. Stop bits options are 1 (default) or 2Note:Do not make any entry in the “ConnectionType --- Base Only” box. It only applies toParagon or ParagonPD base stations.6. Click the Save button to validate yourchoice(s) and start the connecting processthat concludes with the Status bar reporting:“Stationreset is completed”.To exit the window without making any change,click on Cancel.Notes:Enable the “Always ask port configurationwhen WinRIS start” box to have the Port Con-figuration window always opening at start up.Two instances of WinRIS may be run. One ap-plication runs on one COM port and the secondon another port. This feature allows testing amobile and a base station on one computer thathas two COM ports.Ensure that mobile unit is in DMP mode.4.5 FunctionsThe WinRIS program is used to:• Save an existing configuration from a unit toa file.• Take a configuration from a file and uploadit to a unit• Check GeminiPD• Test and/or trouble-shoot installations4.5.1 “Station Reset” buttonOn the menu bar, select “Test”, then the “Sta-tionreset” command or press the “Stationreset”button on the Toolbar to issue a stationresetcommand to the modem.Stationreset is a last step after doing a “PutFrom”. It causes downloaded parameters from afile or diskette to take effect in the connectedunit.Pressing Stationreset is not required after doingany Comments or Password configurationchange as these have their own Put Commentsand Put Password buttons.StationReset does not break the connection.4.5.2 Configuration to a fileSaving the unit’s configuration to a file allowsthe user to:• Subsequently restore the configuration.• Safeguard a copy as documentation of theconfiguration. Note: The configuration and status files areASCII files and may be e-mailed or faxed totechnical support when requested to do so.
120 20110-146 - Preliminary GeminiPD Installation Guide14Warning:Do not make any changes to these files. Anychanges made to the configurations MUST bedone at factory or by Dataradio systemengineering.4.5.2.1 “Get” buttonOn the menu bar, select “File”, then the “Get”command or press the “Get” button on theToolbar to:• Download and automatically save the con-nected unit’s configuration setting to a file(in the current directory of WinRIS) namedwith the unit' serial number: The WinRISstatus bar will then report “All parametersare successfully retrieved and saved in file[unit' s/n].GM2. Any previous configurationin the program is overwritten.If you do not wish to overwrite an existing con-figuration or prefer to name the file yourself,use the “Get As” button.4.5.2.2 “Get As” buttonAfter communication is established using theConnect button, press the Get As button to:• Open the “File, Save As” window with theASCII file *.gm2 (already selected).• Save the connected unit’s operating charac-teristics (configuration setting) to a file, di-rectory or drive of your choice.The program will ask before overwriting anexisting file.Status bar reports “All parameters are success-fully retrieved and saved in [filename].4.5.3 Configuration from a FileLoading a configuration from a file to a unit isuseful to:• Restore the operating characteristics of aunit (Requires intervention with technicalsupport.)• Carry out field updates using Dataradiosystem engineering supplied diskette(s).Warning:Do not make any changes tothese files. Any changes made tothe configurations MUST bedone at factory or by Dataradiosystem engineering.4.5.3.1 “Put From” button1- On the menu bar, select “File”, then the “PutFrom” command or press the “Put From”button on the Toolbar.2- In the “Open” window, locate the drive, di-rectory and file name of the relevant file.• This may be a configuration saved ear-lier from a unit.• It can also be from a Dataradio (factoryor system engineering) diskette.4- Select the appropriate file5- Press the “OK” button.The status bar reports: “[filename] isdownloading into unit” and up to 30seconds later displays: “All parameters aresaved. Apply Station Reset to take effect!” .6- Press the “Station Reset” button. See section4.5.1 for details.4.5.4 Special FunctionsThe following WinRIS fields and buttons areused to gather specific information concerningthe connected unit:• Banner field• Comments field and Put Comments button• Password and Put Password button4.5.4.1 Banner FieldThis field displays a string made up of the serialnumber of the connected unit followed by thefirmwares used and their version number.Format is:[serial number]:firmware 1 name, its version #,firmware 2 name, its version #.
120 20110-146 - Preliminary GeminiPD Installation Guide15The serial number portion uniquely identifiesthe unit. It is a variable length, maximum eight-character alphabetic string assigned at the timeof manufacture. It is identical to the serial num-ber printed on the label of the unit. This numbercannot be changed and is used as part of the on-air protocol.GeminiPD's firmwares resides in flash EPROMand are designed to allow field upgrades.When contacting your supplier, give the fullbanner string and the version of the WinRISused. You will find the version number by se-lecting the “Help” menu option, then “AboutWinRIS” command or pressing the “About”button on the Toolbar.The “Banner” field is blank prior to doing a"Get", "Get As" or "Put From".4.5.4.2 Comments1- Type comments directly in the “Comments”field. These can be text up to 24 characters.Use this field to enter user-convenient de-scription(s) (customer name, location,etc…).2- Press the button “Put Comments” to makethe entry permanent. This field may be leftblank.On subsequent “Get”, “Get As” or “Put From”,this field displays entered comments. If nocomment was entered, the field will remainblank.4.5.4.3 PasswordThe password feature is useful where two (ormore) fleets share the same radio channel. Mo-biles without the proper password would stillreceive the message but the contents would notbe intelligible.1- Type your password directly in the “Pass-word” field. It is a string of 32 hexadecimalcharacters (exactly).2- Press the button “Put Password” to make theentry permanent. This field may be leftblank.On subsequent “Get”, “Get As” or “Put From”,this field will require that the correct passwordbe entered. If none was entered, the field willremain blank.Password information is NOT retrieved andsaved to a file, along with the configuration.Clearing a Password is done by entering 32 zeros.The Dataradio supplied password algorithm isdesigned to thwart the casual observer only. Itprovides a limited form of data privacy. There-fore, if your security requirements are high,Dataradio urges you to use external encryptiontechnology (such as Data Encryption Standard(DES)) in the Host and Mobiles computers.4.5.5 Test FunctionsThe following WinRIS functions and buttonsare used to carry out testing or trouble-shootingon a connected unit:• DSR signal is High indicator• CTS signal is High indicator• Channels select• Show All Channel Frequencies• RSSI Indicator• TXON (Modulated)• TXON (Unmodulated)• Square Wave• Random Data• Addressing and Device fields4.5.5.1 DSR signal is High indicatorThe “Data Set Ready” (DSR) indicator light,located on the button bar (leftmost), is an RS-232 protocol port indication. When lit, it indi-cates proper connection and that the value isHigh. The DMP protocol used requires thatDSR be normally asserted.
120 20110-146 - Preliminary GeminiPD Installation Guide164.5.5.2 CTS signal is High indicatorThe “Clear-to-Send” (CTS) indicator light, lo-cated on the button bar (second indicator fromthe left), is an RS-232 protocol port indication.When lit, it indicates proper connection and thatthe value is High. The DMP protocol used re-quires that CTS be normally asserted.4.5.5.3 Channel SelectionSelect the radio channel on which you wish tosend a test transmission by clicking the relevantavailable option button.The program automatically detects which ofsixteen channels are present on the connectedunit. For each factory-set channel available, therelevant round option button and channel num-ber is enabled (black). For each unavailablechannel, the round option button and channelnumber appears disabled (grayed-out). Only onechannel at a time may be selected.Pressing the “Show All Channel Frequencies”button opens a sub-window listing in tabularform the radio transmitting and receiving fre-quencies programmed for each available chan-nel(s).To exit this sub-window, press the upper rightcorner system box.4.5.5.4 RSSI & Power Out IndicatorsThe Radio Signal Strength Indicator (RSSI) bargraph usually displays in twin-columns the rela-tive strength (in dBm) of an incoming RF signalon the selected channel.The left column indication, labeled "I", showsthe transceiver RX signal (rear mini-UHF con-nector).The right column indication, labeled "II", showsthe auxiliary RX signal (front mini-UHF con-nector).Meter precision is usually better than 3 dBm(see note at the end of this section).This indicator functions as a single column"Power" (Watt) meter when using either of thetest functions: "TXON (Modulated)", "TXON(Unmodulated)", “Square Wave” or “RandomData” with a range of 0 to 60 watts.Precision is usually better than +/-3 watts.Note: These internal RSSI and wattmeter indi-cators are designed for use as conven-ient and general reference only (trendmonitoring). Their readings are not tobe considered a substitute for valuesobtained using a standard external pre-cision measuring instrument.Whenever faced with a pass/fail situa-tion, always base a decision on an ex-ternal RF instrument measurement.It is good practice at the time of instal-lation to record (for future reference)the WinRIS RF power meter reading aswell as readings from a standard powermeter (e.g. Bird, IFR COM120 etc.).4.5.5.5 TXON testsTXON test functions are selected by choosing“Test” from the file menu, then “Modulated”,“Unmodulated”, “Random” or “Square Wave”command or by pressing the relevant button onthe Toolbar. All other commands and buttonsare inactive during test transmissions.4.5.5.5.1 Unmodulated CarrierUnmodulated carrier gives a clear carrier and isfrequently used for checking:• Frequency error• Forward and reverse powerPress the TXON (Unmodulated) button totransmit an unmodulated 20-seconds test signalon the channel selected or until the button ispressed again.The functions of all the other buttons are inop-erative during test transmissions.Power check:1- Connect an in-line power meter between theradio and the antenna.Measure the forward and the reflected powerlevels by powering TX ON. Reflected powershould be <5% of forward power (or as speci-fied by System Eng.).
120 20110-146 - Preliminary GeminiPD Installation Guide174.5.5.5.2 Modulated CarrierTest transmission generates a carrier modulatedwith 1kHz sinewave, at deviation level that de-pends on model and network speed as indicatedin Table 3 below.This function is frequently used for checkingfrequency deviation.Press the TXON (Modulated) button to begintransmitting a 20-seconds modulated test signalon the channel or until the button is pressedagain.Table 3 - Carrier ModulationCarrier ModulationFull ChannelNetwork Speed Typical DeviationRC4FSK 32000 ± 4.01) / ± 3.62) kHz25600 ± 4.01) / ± 3.72) kHzSRRC4FSK19200 ± 4.51) / ± 4.32) kHz19200 ± 4.0 kHz16000 ± 4.0 kHzDGMSK9600 ± 3.0 kHzHalf ChannelNetwork Speed Typical Deviation25600 ± 2.12) kHz19200 ± 1.51) / ± 2.22) kHz16000 ± 1.61) / ± 2.42) kHzSRRC4FSK14400 ± 2.01) / ± 2.82) kHzDGMSK 9600 ± 2.5 kHzDifferent modulation types are not interoperable1) UHF model and Canada market 2) 800MHz model4.5.5.6 Random DataradioGenerates a 20-seconds random data signal.Pressing the ‘’Stop’’’ button halts the ongoingtest.This test function is used for checking low-frequency balance.• Low-frequency balance check:Helps to determine if the radio transmitter iswell balanced for data transmission.Refer to Table 4 for values indicated in adjust-ment tables under “Low Frequency Balance”step.Random data test requires the use of an IFRCOM-120B service monitor with option 03:30KHz IF filter and its DC coupled demodulatoroutput selected.4.5.5.7 Square WaveGenerates a 20-seconds 100 Hz square waveused for low-frequency balance adjustments.4.5.5.8 Addressing and TestThe “Address” and “Device” fields, the “Send”button and the “Chat” message screen are usedto send messages to specific mobile or base or tocarry out RF test. Start by entering the addressof the mobile (or base station) you wish to senda test message to or test:1- Specify the address:Addresses may be entered by typing directlyin the “Address” field in two ways:- Numerically, the valid address range is1-126.- As an “Alpha-Mapped-Nibble” (AMN) ad-dress, consisting of upper case letters in therange A-P. The valid address range is A toGN.- The base address is usually: 1.- The program may display one of the fol-lowing messages on the status bar:- For Paragon products:“address is not in AMN or number for-mat”- For mobile products:“address is not in the range A – GN”In either case, check that the address entered iswithin the acceptable range, is of a valid formatand correctly typed.2- Enter the Device number for mobile (or basestation).3- Press the Send button.The Chat window reports “Sent to xx mobile”(where xx is mobile name).If test is successful:Status line reports “Delivery confirmed.
120 20110-146 - Preliminary GeminiPD Installation Guide18If test unsuccessful:Chat window reports “Waiting”,Then the Status line reports “Delivery Failed”.4.5.6 GPS InformationWhen connected to a Gemini/PD (except “Lite”model) and decoding a valid GPS input signal,this window presents global position in Lati-tude, Longitude and Altitude.A green light indicates valid GPS data is dis-played.A red light indicates the GPS data is either oldor not enough satellites signals are present toachieve valid location computation.Position information is displayed in degrees,minutes and decimal fractions of a minute:E.g. : Latitude of 45 degrees, 29 minutes and 15seconds North would appear as:4529.250 – N under DCF 1.04529.2500 – N under DCF 2.0The “Altitude” field indicates height above theWGS-84 *1 reference ellipsoid in meters with arange of –30000.00 to + 30000.00Notes:The “number of satellites” field indicates thenumber of satellite signals being received andused to calculate position.When no GPS signal is present, the locationindicators display the word “Invalid” and the #of Satellites indicates “0”.The Dataradio Compressed Format (DCF) forGPS messages (DCF v. 1.0 and 2.0 are sup-ported) is used to transmit the GPS informationalong with the DMP data payload. Program-mers who need to decode the compressed infor-mation for their applications may contact Data-radio System Engineering for further informa-tion.Altitude is not displayed in DCF version 1.0 1 WGS- 84 = World Geodetic System - 19844.5.7 Status BarThe Status Bar is located along the bottom edgeof the WinRIS window. To display or hide thebar, check or uncheck the command in the“View” menu.The left area of the status bar describes actionsof menu items as you navigate using the direc-tional arrows. This area also shows messagesdescribing actions of toolbar buttons as you de-press them, before releasing them. If afterviewing the description of the toolbar buttoncommand you wish not to execute the command,then release the mouse button while the pointeris off the toolbar button.Warning and Caution messages appear in pop-up sub-windows. To close these message boxes,press the ESC key.Three boxes on the right of the status bar indi-cate which of the following keys is latcheddown “CAP”, “NUM” or “SCRL”.
120 20110-146 - Preliminary GeminiPD Installation Guide195. Trouble-Shooting andTestingThe checks described below should be done atannual intervals or whenever deterioration inperformance is noted.5.1 Equipment Required• 13.8 VDC (nominal) car battery, or13.8 VDC/20A regulated power supply (Inthe case the unit is not installed in a vehicle)• In-line watt meter (50W range)• Radio service monitor (IFR or equivalent).• Cable with mini-UHF male connector toconnect GeminiPD to the service monitor.5.2 Basic TestsRecommended checks:1. Transmit and Reverse power output2. Carrier frequency error3. Frequency deviation4. Receivers RSSI Check5. Link test between Gemini and the base sta-tion.6. GPS test (not required on GeminiPD Litemodel).Refer to Table 4 for checks 1 to 5.Important note: Before proceeding make surethat the service monitor has been calibratedrecently and has warmed up for at least thetime specified by its manufacturer.Some reported frequency and deviation prob-lems have actually been erroneous indicationsfrom service monitors that have not adequatelywarmed up. This is particularly likely when fieldservice is done during winter monthsRefer to the WinRIS section for functiondetails5.3 GPS TestAbout three minutes after ignition is turned-on,the PWR LED on the GeminiPD front panelshould flash in amber color at the rate of onepulse per second.1 This indicates that the GPShas acquired the sky position of a sufficientnumber of satellites to arrive at a ground posi-tion solution.If the GPS has a good view of the sky and stillhas not generated any position solution withinthree minutes (it may take up to 10 minutes ormore if the sky view is partially blocked.), thefollowing trouble-shooting procedures should beundertaken to isolate the fault:1) Disconnect the GPS antenna cable connectorfrom the Gemini radio and check for + 5VDC on the center pin of the GPS antennaconnector on the radio using a Digital volt-meter (DVM). If the voltage is present, donot reconnect the cable and proceed to step 2.2) With the DVM, measure resistance betweenthe shell and the center conductor of the GPScable, resistance should be between 100 and300 Ohms, if it measures open or short cir-cuit the GPS antenna is either a passive an-tenna which is the WRONG type, or a defec-tive active antenna, replace with a knowngood active antenna.3) Connect the new antenna to Gemini and waitabout three minutes for the POSITIONACQUIRED indicator to start flashing onGeminiPD, if not, the Gemini radio or its GPSreceiver is defective 1 Lit green and flashing amber for the 800MHz model un-der 2% duty cycle limit.
120 20110-146 - Preliminary GeminiPD Installation Guide20Table 4 - Tests, Full & Half Channel UnitsCHECKLISTSTEP ACTION EXPECTED RESULTS at 25°°°°CMEASURE WITH IF NOT?GeminiPD units are set and characterized at the factory to optimize performances. It is not recommended to try to readjust the units.1Power-up LEDSequence as per Table 1 - GeminiPD LEDs indications2Connect and save con-figPress WinRIS Get buttonas per section 4.5.23Main transceiver Out-put PowerPress TX (Unmod)UHF: 40 watts800MHz: 35 wattsboth +10%, -10%Factory-settable down to 10watts (5 watts for 800MHzmodel) as per customer requestService monitor set toread poweror50W in-line wattmeterRefer to factory technicalsupport.4Main transceiverReflected PowerPress TXON (Unmod)<5% of forward power or asspecified by System Eng. 10W in-line wattmeter Check for bad connec-tions, damaged coaxcable, etc.5Carrier Frequency ErrorPress TX (Unmod) ±300 Hz Service monitor set toread frequency error Refer to factory technicalsupport.xRC4FSK UHF 800 US 800 CASpeed\ Full channel unit32.0 kb/s ±4.0 ±3.6 ±3.625.6 kb/s ±4.0 ±3.7 ±3.719.2 kb/s ±4.5 ±4.5 ±4.5Half channel unit25.6 kb/s - ±2.1 -19.2 kb/s ±1.5 ±2.2 ±1.516.0 kb/s ±1.6 ±2.4 ±1.614.4 kb/s: ±2.0 ±2.8 ±2.0DGFSK Full channel unit19.2 kb/s ±4.0 ±4.0 ±4.016.0 kb/s ±4.0 ±4.0 ±4.0Half channel unit9.6 kb/s ±2.5 ±2.5 ±2.54TX Deviation (KHz)Press TXON (Modulated) Carrier will be modulatedwith a 1 kHz tone.Tolerance is +5%, -10% for all bit rates.Service monitor set toread deviation (IF filter set to Mid or 30kHz position)Refer to factory technicalsupport.5RF Link testUse the addressing func-tion’s “Send” button to dy-namically test transmissionsLook for“Delivery confirmed” on theStatus baras per section4.5.5.8Check on the WinRIS RSSI bar graphif the base station is within range (i.e.better than -107dBm) orRefer to factory technical support.6 Set the service monitor to generate at the levels mentioned below. The carrier generated should be modulatedwith a 1.0 kHz tone at deviation of +/- 4.0kHz (full ch.) or +/-2.5kHz (half ch.).7Main Rec. RSSI checks-70dBm-110dBm-120dBm- 70 dBm +/-3-110 dBm +/-3-120 dBm +/- 3 WinRIS bar graphRefer to factory technicalsupport. The RSSI checksgive a good indication of re-ceivers' health.8Aux Receiverrepeat as per step 7 same as step 7 WinRIS bar graph Refer to factory technicalsupport.1 (unless you have set a lower value). Note that readings less than 40 watts (UHF model) or 35 watts (800MHz model) may be dueto losses in cables used for testing. Check also your wattmeter frequency calibration curve. Do not be too ready to condemn thetransmitter.
120 20110-146 - Preliminary GeminiPD Installation Guide216. SpecificationsGENERALUHF 800 MHzFrequency Tx 403 - 512 MHz1806 – 824 MHz (821-824)Frequency Rx 403 - 512 MHz 1851 – 869 MHz (866-869)Channel spacing 12.5 or 25 kHzFrequency Control Digital Synthesizer / uControllerFrequency Stability 1.5 ppmOperating temperature -30°C to +60°C (25°C nominal) @ 95% non-cond. RHModes of Operation Simplex or Half DuplexNumber of channels 16 internally storedSupply voltage 13.6Vdc nominal (negative ground)10.9 – 16.3 VDCCircuit Protection 15 Amp fuse external2 & 4 Amp fuse internalRX Current at 13.6 VDC < 550 mA Standby (with auxiliary receiver)TX Current at 13.6 VDC < 15 ATX/RX separation 5 MHz typicalNominal Dimensions 7.050” D x 6.000” W x 2.0000” HWeight: < 3.5 lbs.RF input/output Impedance 50 ohms nominalRF connector Main TX/RX: mini-UHF femaleAuxiliary RX: mini-UHF femaleGPS RX: SMA female (Not installed for GeminiPD Lite version)Interface connector 3x DE-9F D-subminiatureRECEIVERSensitivity (12 dB SINAD) < 0.35 µV *Selectivity (25KHz) 75 dB typical70 dB minimumSelectivity (12.5) 65 dB typical60 dB minimumIntermodulation 75 dB typical70 dB minimumSpurious rejection 75 dB typical70 dB minimumFM hum & noise -45 dB typical *Conducted spurious < -57 dBm* psophometrically weighted filter 1 WARNING: The frequency band 406 to 406.1 MHz is reserved for use by distress beaconsand should not be programmed into the unit.
120 20110-146 - Preliminary GeminiPD Installation Guide22TRANSMITTERPower output UHF = 10-40 watts 800 MHz = 5-35 wattsDuty cycle 20% @ full power, 30 secs. max. TX time (subject to FCC MPE limit)Conducted Spurious -75 dBc (-38 dBm @10 W) typicalFrequency stability 1.5 ppmFM hum and noise -45 dB max (25 kHz)Attack time < 10 msOperation Simplex/half duplexData rates andModulation typeDGFSK (9600 b/s), (19200 b/s) *SRRC4FSK (19200 b/s), (25600 b/s) *better than –112 dBm at 19200 b/s full channel, with P/D (DGFSK)*Packet Error Rate(for < 1% error) better than –110 dBm at 25600 b/s full channel, with P/D (SRRC4FSK - UHF)*better than –109 dBm at 25600 b/s full channel, with P/D (SRRC4FSK – 800MHz)*Protocol Dataradio Proprietary DBA* Networks must use common modulation, bit and baud rates. Different types are not on-air compatibleDISPLAY and CONTROLS2 status LEDs RX/TX, PWREnvironmental MIL. spec.Environment Categories MIL Spec. 810E OtherMethod ProcedureLow Pressure Operations 500.3 IIHigh Temperature Operations, Storage 501.3 I(A1), IILow Temperature Operations, Storage 502.3 I(C3), II (C1)Temperature Shock Transfer of equipment 503.3 I(AI,C2)Solar Radiation Heat effects 505.3 IRain1Drip rain 506.3 II IEC IP54 only IIHumidity1Induced, Aggravated 507.3 II,IIIDust1Blowing dust 510.3 I IEC IP54Vibration Ground Mobile 514.4 I(8) EIA RS-204C ForestryShock Functional, Bench handling 516.4 I,VI EIA RS-204CFCC / IC CERTIFICATIONS EMISSION DESIGNATORSFCC IC (DOC) Bit rate Baud rate Modulation UHF 800MHzUHF EOTGPDA 773195525A 9600 9600 DGMSK 8K60FID 8K60FID16000 16000 DGMSK 15K3FID 15K3FID800 MHz EOTGPDB 773195643A 19200 19200 DGMSK 15K0FID 15K0FID19200 9600 SRRC4FSK 16K0FID 16K0FIDTBD 10K2F1D25600 12800 SRRC4FSK 15K6F1D 15K6FID- 11K5F1D16000 8000 SRRC4FSK 8K17F1D 10K0F1D14400 7200 SRRC4FSK 8K67F1D 11K0F1D32000 16000 RC4FSK 16K5F1D 15K6F1D 1 MIL Specification not guaranteed with GeminiPD Lite version.
120 20110-146 - Preliminary GeminiPD Installation Guide23Appendix 1 - "Officer Requires Assistance" alarm functionThe contents of this appendix are also available as Technical Instruction Sheet 009 (TIS009),document part number 122 20110-009 dated December 20, 2000.OverviewThe DTE Port Interface pin 9 (AUX) on DEV-2 is used for the “Officer Requires Assistance”alarm function.Intended AudienceThis document is designed for use by System Integrators.Physical ConnectionThis auxiliary input may be activated by (normally open) dry contact pull-up to the port’s DSRoutput. It can also tolerate user pull-up to external +12 VDC (car battery), but an isolated drycontact is preferred due to the risk of noise-related false alarms caused by the vehicle’s electricalsystem.A +3 to +12 V signal at this pin will send a DMP “x” (On) message to the base.An open or ground signal will send a DMP “y” (Off) message.Messages are only sent when a signal transition occurs (debounced for approximately 100 ms).OperationWhen using GeminiPD or GeminiPD Lite products, activating the “Officer Requires Assistance”alarm input starts emergency communications:• The modem creates DMP “x” or “y” messages.• Any other pending message(s) will be failed to avoid delaying the alarm message on accountof lower priority traffic and to remove non-emergency messages from duty-cycle manage-ment (if applicable). In the case of a “q” message, a D-NAK* will be immediately returned.• Base and Channel hunt will take place for the usual number of retries per base (according toconfiguration) but will cycle forever until D-ACKed1 or Reset1.• Lack of base DBA synch will not prevent transmission to maximize the chance that a basegets the alarm signal. DBA “Freewheel” mode will be forced until the alarm is acknowl-edged. 1 For details on DMP terms, refer to DMP 1.5 manual, version 4.0

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