CalAmp Wireless Networks GPDA GeminiPD User Manual Appendix A preliminary version 1 42

CALAMP WIRELESS NETWORKS INC. GeminiPD Appendix A preliminary version 1 42

Appendix A preliminary version 1 42

GeminiPD

Mobile Radiomodem

Installation Guide

Version 1.42

Preliminary – For Internal Use Only

The entire contents of this manual and the Radio Installation Software

April, 2001

Part no.: 120 20110-142

Table of Contents

1. PRODUCT OVERVIEW.....................................................................................................................................1

1.1 INTENDED AUDIENCE..........................................................................................................................................1

1.2 GENERAL DESCRIPTION ......................................................................................................................................1

1.2.1 Features....................................................................................................................................................1

1.2.2 Configuration ...........................................................................................................................................1

1.3 FACTORY TECHNICAL SUPPORT..........................................................................................................................2

1.4 PRODUCT WARRANTY.........................................................................................................................................2

1.5 REPLACEMENT PARTS .........................................................................................................................................2

1.5.1 Factory Repair .........................................................................................................................................2

1.6 UNPACKING........................................................................................................................................................2

2. INSTALLATION..................................................................................................................................................3

2.1 PLANNING THE INSTALLATION ............................................................................................................................3

2.1.1 Overview...................................................................................................................................................3

2.1.2 Location....................................................................................................................................................3

2.1.3 Cable Path................................................................................................................................................3

2.2 WARNINGS .........................................................................................................................................................3

2.2.1 RF Radiation warning..............................................................................................................................3

2.2.2 Interference with vehicular electronics...................................................................................................3

2.2.3 Secure mounting.......................................................................................................................................4

2.2.4 Explosive environments............................................................................................................................4

2.2.5 Installation in vehicles powered by liquefied gas. ..................................................................................4

2.3 PHYSICAL UNIT...................................................................................................................................................4

2.3.1 Recommended tools and supplies.............................................................................................................4

2.3.2 Physical mounting of GeminiPD................................................................................................................4

2.4 ELECTRICAL INSTALLATION ................................................................................................................................5

2.4.1 Electrical requirements............................................................................................................................5

2.4.2 Routing of power cable ............................................................................................................................5

2.5 ANTENNA...........................................................................................................................................................7

2.5.1 Recommended tools and supplies.............................................................................................................7

2.5.2 Planning ...................................................................................................................................................7

2.5.3 Antenna Installation.................................................................................................................................8

2.6. COMPLETING THE PHYSICAL INSTALLATION....................................................................................................8

2.7. CHECKING OUT NORMAL OPERATION .............................................................................................................8

3. OPERATING DESCRIPTION............................................................................................................................9

3.1 FRONT & REAR PANELS......................................................................................................................................9

3.2 DTE PORT INTERFACE......................................................................................................................................10

3.2.1 RS-232 Interface Signal Levels..............................................................................................................10

4. WINRIS PROGRAM.........................................................................................................................................11

4.1 OPERATION.......................................................................................................................................................11

4.2 TO CONNECT AND START WINRIS ....................................................................................................................11

4.3 WINDOW ..........................................................................................................................................................12

4.4 FUNCTIONS.......................................................................................................................................................13

4.4.1 “Station Reset” button...........................................................................................................................13

4.4.2 Configuration to a file............................................................................................................................13

4.4.2.1 “Get” button..................................................................................................................................... 13

4.4.2.2 “Get As” button................................................................................................................................ 14

4.4.3 Configuration from a File......................................................................................................................14

4.4.3.1 “Put From” button............................................................................................................................ 14

4.4.4 Special Functions...................................................................................................................................14

4.4.4.1 Banner Field..................................................................................................................................... 14

120 20110-142 ii GeminiPD Installation Guide

4.4.4.2 Comments........................................................................................................................................ 15

4.4.4.3 Password ......................................................................................................................................... 15

4.4.5 Test Functions ........................................................................................................................................15

4.4.5.1 DSR signal is High indicator............................................................................................................... 15

4.4.5.2 CTS signal is High indicator............................................................................................................... 16

4.4.5.3 Channel Selection.............................................................................................................................. 16

RSSI & Power Out Indicators.............................................................................................................................. 16

4.4.5.5 TXON tests...................................................................................................................................... 16

4.4.5.5.1 Unmodulated Carrier..................................................................................................................... 16

4.4.5.5.2 Modulated Carrier......................................................................................................................... 17

4.4.5.6 Ping Button ...................................................................................................................................... 17

4.4.5.7 Ping addresses.................................................................................................................................. 17

4.4.6 Status Bar ...............................................................................................................................................17

5. TROUBLE-SHOOTING AND TESTING .......................................................................................................19

5.1 EQUIPMENT REQUIRED......................................................................................................................................19

5.2 BASIC TESTS.....................................................................................................................................................19

5.3 GPS TEST.........................................................................................................................................................19

6. SPECIFICATIONS.............................................................................................................................................22

FIGURE 1 - MOUNTING PLATE AND SLOT DIMENSIONS......................................................................................................5

FIGURE 2 - BRACKET INSTALLATION ................................................................................................................................5

FIGURE 3 - DC POWER CONNECTOR................................................................................................................................6

FIGURE 4 - ANTENNA SPACING ........................................................................................................................................7

FIGURE 5 - FRONT AND REAR PANELS...............................................................................................................................9

FIGURE 6 - WINRIS WINDOW.........................................................................................................................................12

FIGURE 7 - SELECT PORT WINDOW.................................................................................................................................13

FIGURE 8 - SHOW ALL CHANNEL FREQUENCY ...............................................................................................................16

TABLE 1 - GEMINIPD LEDS INDICATIONS......................................................................................................................10

TABLE 2 - RS-232 SIGNAL LEVELS ................................................................................................................................10

TABLE 3 - CARRIER MODULATION..................................................................................................................................17

TABLE 4 - KEY LATCH INDICATIONS...............................................................................................................................18

TABLE 5 - TESTS, FULL & HALF CHANNEL UNITS ..........................................................................................................20

APPENDIX 1 - "OFFICER REQUIRES ASSISTANCE" ALARM FUNCTION .......................................................................24

120 20110-142 iii GeminiPD Installation Guide

What's New in this version

History

Version 1.42 (Preliminary), April 2001

Following sections are amended to show SRRC4FSK 12.5kHz channel spacing

bit rates.

- Section 1.2.1 Features

- Table 3 Carrier Modulation

- Table 5 Tests, Full & Half Channel Units

- Section 6 Specifications

Version 1.41, March 2001

• Section 2.5 “Antenna” and Figure 4 “Antenna spacing” amended to show

FCC’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 and clari-

fied.

• 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” alarm

function 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

120 20110-142 iv GeminiPD Installation Guide

• 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”.

Version 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 edited

in the footnote.

• Title of section 4.4.4.2 edited to specify that RSSI Indicator also

serves as power meter. Note added to establish that the internal

wattmeter is not to be interpreted as a precision instrument.

• Section 4.4.4.3.1 “Unmodulated Carrier” edited to show 800MHz model

power check nominal forward wattage.

• Section 2.4.2 “Routing of Power Cable”, step no. 7, clarification of

negative 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 WinRIS

program 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 - RF Ra-

diation Warning and to paragraphs 2.5 through 2.5.3. – Antenna installa-

tion.

Version 1.0, January 2000:

First released version

120 20110-142 vGeminiPD Installation Guide

120 20110-142 vi GeminiPD Installation Guide

Definitions

The following terms are used throughout this document.

Item Definition

DCE Data Communications Equipment. This designation defines the direction (input or

output) of the various RS-232 interface signals. Modems are always wired as

DCE.

DTE Data Terminal Equipment. This designation defines the direction (input or output)

of the various RS-232 interface signals. Most user equipment, as well as PCs, 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, but

which 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 and unit

configuration.

120 20110-142 GeminiPD Installation Guide

1. PRODUCT OVERVIEW

This document provides the information re-

quired for the installation, operation and

verification of the DATARADIO GeminiPD

mobile radiomodem.

1.1 Intended Audience

This document is designed for use by engi-

neering design, installation, and maintenance

personnel.

1.2 General Description

GeminiPD is a mobile radiomodem aimed at

the public safety and public utility markets

to meet demand for high speed and high

throughput. It integrates all the necessary

hardware for data-only vehicular

installations up to but not including the

laptop PC and its application software.

Example of applications are:

1. Database inquiry systems.

Small number of brief messages, (usu-

ally from the mobile station) with fairly

long responses.

2. Computer-aided dispatch (CAD).

Large number of messages, (usually

from the base station) with very brief re-

sponses.

3. Automatic Vehicle Location (AVL).

Using built-in GPS receiver, determines

position, speed and direction of fleet

members.

The GeminiPD is made-up of a main

transceiver and an auxiliary receiver for

Parallel Decode (PD), a 40-Watt power

amplifier (35-Watt for 800 MHz model), a

GeminiPD Control Unit (GCU) with DSP

driven modem and an optional integrated

OEM GPS receiver. *

1.2.1 Features

• One-piece integrated design in a rugged

die-cast aluminum chassis.

• Parallel Decode (PD) technology (patent

pending) featuring dual receivers for

added decode sensitivity in multi-path

and fading environments.

• Sophisticated DSP-based modem design

provides added system performance,

fewer retries and more effective

throughput.

• Automatic channel changing for im-

proved roaming capabilities.

• Built–in, up to 16-channel flash –

EEPROM programmable synthesized

radio transceiver with automatic channel

selection.

• Models with on-air data speeds and

modulation types as follows:

- DGFSK* modulation, rates of 9600

to 19200 b/s in 12.5 or 25 kHz

channel spacing (9600 b/s maximum

in half channels).

- SRRC4FSK* modulation, rates of

25600 and 19200 b/s in 25 kHz or

16000 and 14400 b/s in 12.5 kHz

channel spacing.

• 3 available user ports using standard

RS-232 interface via built-in multi-

plexer.

• Half-duplex or simplex operation.

• Out-of-band signaling enables transmis-

sion of GPS* reports with no effect on

system performance.

• Back-compatible with MobilPac/R

(DGFSK)* at 9600 and 19200 b/s.

1.2.2 Configuration

GeminiPD is factory configured based on

each customer network system requirements,

usually by Dataradio System Engineering.

Configuration is not changeable in the field

without notifying Dataradio.

* Networks must use common modulation, bit

and baud rates.

* The GeminiPD Lite model has no GPS.

120 20110-142 GeminiPD Installation Guide

1.3 Factory Technical

Support

The Technical Support departments of

DATARADIO provide customer assistance on

technical problems and serve as an interface

with factory repair facilities. They can be

reached in the following ways:

DATARADIO Inc.

5500 Royalmount Ave, suite 200

Town of Mount Royal

Quebec, Canada H4P 1H7

Technical support hours: Monday to Friday

9:00 AM to 5:00 PM, Eastern Time

phone: +1 514 737-0020

fax: +1 514 737-7883

Email address: support@dataradio.com

DATARADIO Corp.

6160 Peachtree Dunwoody RD., suite C-200

Atlanta, Georgia 30328

Technical support hours: Monday to Friday

8:30 AM to 5:30 PM, Eastern Time

phone: 1 770 392-0002

fax: 1 770 392-9199

Email address: drctech@dataradio.com

1.4 Product Warranty

Warranty information may be obtained by

contacting your sales representative.

1.5 Replacement Parts

This product is not field serviceable, except

by the replacement of a complete unit. Spe-

cialized equipment and training is required to

repair the GCU board and radio modules.

Contact Technical Support for service in-

formation before returning equipment. A

Technical Support representative may sug-

gest a solution eliminating the need to return

equipment.

1.5.1 Factory Repair

When returning equipment for repair, you

must request an RMA (Returned Material

Authorization) number. The Tech Support

representative will ask you several questions

to clearly identify the problem. Please give

the representative the name of a contact per-

son who is familiar with the problem, should

questions arise during servicing of the unit.

Customers are responsible for shipping

charges for returned units. Units in warranty

will be repaired free of charge unless there is

evidence of abuse or damage beyond the

terms of the warranty. Units out of warranty

will be subject to service charges. Informa-

tion about these charges is available from

Technical Support.

1.6 Unpacking

When ready for installation, carefully unpack

your GeminiPD kit (p/n 023 6000-001) ship-

ping carton and identify each item as listed

below:

• One GeminiPD

• Installation mounting bracket

• Power cable – 22 feet (6.7 meters)

• Small parts kit

If damage has occurred to the equipment

during shipment, file a claim with the carrier

immediately.

120 20110-142 GeminiPD Installation Guide

2. Installation

2.1 Planning the Installation

2.1.1 Overview

To ensure trouble-free, efficient installation,

start by inspecting the vehicle to determine

the optimum position for GeminiPD and its

antennas as well as the routing of all associ-

ated cabling and wiring.

2.1.2 Location

Often, installations in cars are done in the

trunk, underneath the back window ledge or

on 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 front

cabin.

Be sure to place the GeminiPD unit in such a

way that:

• The LEDs can be seen (as an aid in

troubleshooting)

• Access to the antenna DE-9 connectors

is possible without removing the unit

• Sufficient air may flow around the unit

to provide adequate cooling

GeminiPD is not fully waterproof, therefore it

should be mounted sufficiently away from an

opened trunk lid or opened tailgate, windows

or doors to avoid exposure to rain and/or

snow. It also minimizes the chance that mate-

rial can be accidentally thrown on the unit or

of someone bumping against it.

2.1.3 Cable Path

Try to route the cables away from locations

where they would be exposed to heat (ex-

haust pipes, mufflers, tailpipes, etc.), battery

acid, sharp edges, mechanical damage or

where 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 and

ignition circuits to help prevent interference

between these components and radio equip-

ment.

Try using existing holes in firewall and trunk

wall and the channels above and below or

beneath the doors, channels through doors

and window columns that are convenient to

run cables and wires.

Whenever possible, install conduit in which

to run the cables.

2.2 Warnings

Before starting installation, review all of the

following warnings.

2.2.1 RF Radiation warning

The Federal Communications Commission

(FCC), with its action in the General Docket,

79-144, March 13, 1985, has adopted a

safety standard for the human exposure to

radio frequency electromagnetic energy

emitted by FCC-regulated equipment. Only

proper installation of the transceiver antenna

of GeminiPD as summarized in section 2.5

will result in user exposure substantially

below the FCC recommended limits.

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 the

antenna may result in radio energy radiation

burns or related injuries.

2.2.2 Interference with vehicular

electronics

Certain vehicle electronic devices may be

prone to malfunction due to lack of protec-

tion from radio frequency energy present

when transmitting.

It includes, and is not limited to:

- Electronic fuel injection systems

- Electronic anti-skid braking systems

- Electronic cruise control systems

120 20110-142 GeminiPD Installation Guide

If the installation vehicle contains such

equipment, consult the dealer for the make

of vehicle and enlist his aid in determining if

such electronic circuits will perform nor-

mally when the radio is transmitting.

2.2.3 Secure mounting

For vehicle occupant(s) safety, mount Gem-

iniPD securely so that the unit will not break

loose in case of an accident or violent ma-

neuvers.

2.2.4 Explosive environments

Operation of vehicular radio transmitters in

explosive environments may be hazardous

and conventional safety precautions must

prevail. These include and are not limited to:

- Transmitting while fuelling the vehicle.

Do not carry fuel containers in the same

compartment as GeminiPD.

- Dynamite blasting caps may explode

when transmitting radio operation takes

place within 500 feet. Always obey the

“Turn Off Two-Way Radios” signs

posted at sites where dynamite is being

used.

If transporting blasting caps:

a) Carry the blasting caps in an appropriate

metal container having a soft cushioning

lining.

b) Suppress transmissions whenever the

blasting caps container is being loaded

or unloaded into or from the vehicle.

Check applicable local bylaws.

2.2.5 Installation in vehicles

GeminiPD installations in vehicles powered

by liquefied petroleum gas with the LP-gas

container in the trunk or other sealed-off

space within the interior of the vehicle must

conform to the National Fire Protection As-

sociation Standard NFPA 58 which requires:

- Space containing radio equipment shall

be isolated by a seal from the space

containing the LP-gas container and its

fittings.

- Outside filling connections shall be used

for the LP-gas container.

The LP-gas container space shall be vented

to the outside of the vehicle.

2.3 Physical Unit

2.3.1 Recommended tools and

supplies

• 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 and

bolts) used.

• In-line “Power meter” capable of meas-

uring forward and reflected power at the

operating frequency of the radio.

2.3.2 Physical mounting of

GeminiPD

Start by running all the cables (DC power,

PC RS-232 as well as all antennas cabling)

prior to mounting GeminiPD to assure the

feasibility of the planned cable routing. Be

sure to leave sufficient slack in each cable

so the GeminiPD may be removed from the

mounting bracket for servicing with the

power applied and the antenna attached.

GeminiPD is ready for installation.

Cautions:

• When drilling mounting

holes, be careful to avoid dam-

aging some vital part of the ve-

hicle such as fuel tanks, trans-

mission housing etc. Always

check how far the mounting

screws extend below the

mounting surface prior to in-

stallation.

• Use of drill bit stops is

highly recommended.

• After drilling, remove all

metal shavings before installing

screws.

120 20110-142 GeminiPD Installation Guide

• Do not overtighten self-

tapping screws.

1. Once you have found a suitable mount-

ing position for GeminiPD, hold the unit

and the unattached mounting bracket in

the proposed mounting position and

check that there is clearance behind the

unit for the heatsink, cables, etc. Check

that the position provides a large enough

flat surface that the bracket will not be

distorted when installed.

Figure 1 - Mounting plate and slot dimensions

2. Using the installation bracket as a tem-

plate, mark the four locations for drilling

(see Figure 1). Again, ensure that drilling

at the selected points is safe and will not

cause damage.

3. Indent the drilling positions with a center

punch.

4. Drill holes sized for the self-tapping

screws or for the nuts, bolts and lock

washers used.

Caution: Slightly reduce the size of the

drilled holes when using self-tapping

screws in thin metal.

Figure 2 - Bracket installation

5. Install the bracket without distorting.

6. Securely mount GeminiPD to the installed

bracket using the four supplied 8x40

black machine screws.

7. Drill any additional holes as required for

routing all cables and fit holes with

suitable grommets or bushings whenever

required.

2.4 Electrical installation

2.4.1 Electrical requirements

GeminiPD is designed to operate from a

13.8Vdc nominal car battery (negative

ground) and requires currents up to 15.0A. It

will tolerate a supply voltage range of 10.9

volts to 16.3 volts.

In vehicles with a 24 VDC electrical system

(mostly in trucks), it is essential to provide a

suitably rated 24/12 VDC converter to iso-

late the unit from the battery and protect it

against excessive voltage.

Warnings:

Application of more than 16.3 VDC

will damage GeminiPD and is not

covered by the warranty.

Always disconnect GeminiPD’s DC

power lead before connecting a

second battery, using power from

another vehicle or power boosting

(e.g. when “jump starting” the ve-

hicle).

2.4.2 Routing of power cable

1. Start by disconnecting the vehicle’s bat-

tery unless specifically prohibited from

doing so by the customer, vehicle manu-

facturer, agent or supplier.

Note:

In this event, exercise ex-

treme caution throughout

the installation and fit the

fuse only when the installa-

tion is complete.

2. The 22 feet (6.7 meters) long power ca-

ble consists of three wires attached to a

Packard Electric “Weather-Pack” con-

nector (DC power Connector).

2.5"

6.0"

1.0"

0.2"

120 20110-142 GeminiPD Installation Guide

The DC Power connector has:

• At position “A”, the smaller red

switch-sense wire (commonly to ignition)

• At position “B”, the blue ground wire

• At position “C”, a larger red B+ DC

power wire (MUST be unswitched)

Figure 3 - DC Power Connector

3. Place this connector at GeminiPD’s radio

power input location. Do not connect at

this time. See paragraph 2.6, “Complet-

ing the physical installation”.

4. Carefully route both the B and the C

wires to where the in-line fuse holder

will be installed, usually as close to the

vehicle’s battery as practicable. Ensure

that leads do not chafe on any metal

part(s). Secure the wires at several loca-

tions along their length.

Caution:

Use proper crimping tool.

Common pliers are NOT

acceptable.

Warning:

The DC Power lead must be

unswitched

5. Insert the negative (blue) lead into one of

the appropriate connector lug and crimp

solidly to force the metal contacts onto

the wires.

6. Repeat the step above for connecting the

red DC power lead.

7. Attach the positive lead at the battery

positive terminal. Attach the negative

wire at the vehicle end of the battery

ground cable.

If the negative cable is con-

nected directly to the battery

negative terminal, it should be

fused in case of failure of the

vehicle’s ground cable.

Ensure tight and secure connections.

8. Fasten the fuse holder and leads.

9. Carefully route the A wire to where the

connection will be made for switch

sensing.

• Connect to “Ignition” if you wish to

have GeminiPD turning ON and OFF

dependent on the vehicle’s ignition

key.

• Connect to “Accessory” if you wish

GeminiPD to be available when the

engine is not running, but still de-

pendent on the ignition key.

• Connect to a user-supplied control

switch.

• In installations equipped with a

“ChargeGuard”, connect to the con-

trolled-side of the ChargeGuard

(remembering that the DC Power

lead must NOT be switched).

10. Make appropriate connections.

Cautions:

Where scraping to bare metal was

required, and at the battery posts

where wire ends and lugs may be

exposed, apply anti-corrosion com-

pound.

Insert the fuse only when installa-

tion is complete and ready to test.

11. At the GeminiPD position, neatly coil

cable slack and attach securely.

IGNITION

(

Small red wire

)

GROUND

(Blue wire)

13.8VDC B+

(Fused Red wire) SEAL

(DO NOT REMOVE)

120 20110-142 GeminiPD Installation Guide

2.5 Antenna

To meet the FCC’s RF Exposure Guidelines,

the main transmitter antenna must be vehicle-

mounted to provide a separation distance of

50 cm or more from all persons and the an-

tenna gain must not exceed 5dB to satisfy

RF exposure requirements.

2.5.1 Recommended tools and

supplies

• circle cutter

• hole saw or

• socket punch for antenna

• Mini-UHF Crimp tool

2.5.2 Planning

Referring to Figure 4, GeminiPD commonly

uses three separate antennas:

• “T” - Main transceiver -

Constraints are Maximum Permissive

Exposure (“MPE” on the drawing) limits

of 50 cm (as per see section 2.5 above)

and omni-directional factors

• “R” - Auxiliary receiver –

Constraints are the receiver spacing of at

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 least

24-in/60.96 cm from all transmitting an-

tennas 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 dependent

antennas, the center of the metal surface

used for mounting is preferable for best

omni-directional pattern.

For ground-plane independent antennas, in-

stallation may be close to the edges of the

surface.

* The GeminiPD Lite model has no GPS.

Figure 4 - Antenna spacing

Install the antennas in one of the following

positions:

- Most preferred for all antennas: center-

line of roof. For transmitter antenna, it is

the ONLY acceptable position.

- Less preferred for receiver antenna:

trunk lid, providing distance to transmit-

ting antenna is respected whether lid is

opened or closed.

- Much less preferred, but permissible for

receiver 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 fenders,

ahead of windshield

Note: Proximity to other vehicle-mounted

antennas may cause mutual inter-

ference especially at higher fre-

quencies.

MPE

≥

≥≥

≥5/8λ

λλ

(UHF: 18"/46cm

800MHz: 9

/23cm)

50cm

19.7in.

≥

≥≥

≥24in.

120 20110-142 GeminiPD Installation Guide

2.5.3 Antenna Installation

1. Route good quality 50-ohm coaxial ca-

bles (e.g. RG-223) from each of the se-

lected antenna positions to the position

where the GeminiPD unit is mounted.

2. Terminate the end at each of the antenna

positions with the appropriate connector

for the antenna used and make the con-

nection.

3. At the GeminiPD position, cut the three

cables to length and terminate with the

appropriate plug. For the transceiver and

the auxiliary cables, use a Mini-UHF

crimp plug using an appropriate crimping

tool. For the GPS, use a SMA connec-

tor.

4. Positively identify the transceiver mini-

UHF plug and connect to the left rear of

GeminiPD.

5. Positively identify the auxiliary receiver

mini-UHF plug and connect to the front

left of GeminiPD to the RX position.

6. Connect the SMA connector to the GPS*

position below the auxiliary connector

position.

7. Do not skip this last step, trust us; it is

an important one. To complete the in-

stallation, tie-wrap together the auxiliary

and the GPS* antenna cables at a point

about two inches in front of the unit. It

will be much easier hereafter to cor-

rectly identify which mini-UHF plug

goes where. You DO NOT want to cross

the auxiliary plug with the transceiver

plug.

2.6. Completing the

physical Installation.

To complete the physical installation and

prior to testing GeminiPD:

• Connect DC Power cable’s connector to

GeminiPD’s until you hear a click as the

two parts snap together.

• Re-check that all other connections are

secure (antennas, PC, etc.)

• Switch vehicle ignition ON.

You are now ready to check for normal op-

eration and to run the Radio Installation

Software (WinRIS) program for testing or

trouble-shooting.

2.7. Checking out Normal

operation

Check that the vehicle ignition is ON.

1. Check for proper operation of the

GeminiPD’s LEDs as per Table 1 in sec-

tion 3.1

2. Using the WinRIS program (described in

section 4) and an in-line wattmeter,

check forward & reverse power to con-

firm main antenna installation.

3. Using the WinRIS, check the RF link

with a base station that can be heard by

using the WinRIS “Ping” feature (see

paragraph 4.4.4.4).

If user application and its base station

are available, test the installation by

going through a normal sequence of

transmitting and receiving messages.

* The GeminiPD Lite model has no GPS.

120 20110-142 GeminiPD Installation Guide

3. Operating Description

3.1 Front & Rear Panels

The 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 ports

The rear panel includes:

• One mini-UHF type female antenna connector for the main transceiver

• One 3-pin pigtailed DC Power connector with ignition sense

Figure 5 - Front and rear panels

RX TXPWR PGM PC/SETUP

DEV-1DEV-2DEV-3

GPS

Gemini/PD

6.000"

2.000"

120 20110-142 GeminiPD Installation Guide

Table 1 - GeminiPD LEDs indications

GeminiPD LEDs indications

Power-on Sequence (LEDs are paired) Normal Operation (LEDs are independent)

PWR RX / TX Indication PWR Indication RX / TX Indication

Red Red Normal boot-up start

(10 to 27 sec.) Green* Normal ready state Off No network activity

Amber Off Then 8 seconds to

completing boot-up

Normal

Green Off Normal state

Amber* 1 Pulse/sec.

Sufficient satellites

acquired by GPS Green Receiving packets

“DBA sync” allows transmit

Red Off Hardware failure Amber Receiving packets

“DBA out-of-sync” prevents

transmit

Errors

Slow

Red/Green Red Software failure

(firmware erased) Red Transmitting

Special

Fast

Red/Green Red Programming in

progress

* For 800MHz model (using 25% duty cycle limit)

PWR lit Green / Flashing Amber = normal indication (GPS 1pulse per sec.)

PWR lit Amber / Flashing Green = exceeded duty cycle (GPS 1pps)

3.2 DTE Port Interface

For all three ports:

DE-9 F

pin # Function

1DCD – from GeminiPD, normally asserted

2 RXD – data from GeminiPD

3 TXD – data to GeminiPD

4 DTR – to GeminiPD, handshaking

5 Ground

6 DSR – from GeminiPD, tied to VCC

through current limiting resistor

7 RTS - to GeminiPD, handshaking

8 CTS – from GeminiPD, handshaking

9 AUX - auxiliary input to GeminiPD,

(for port 2: “Officer requires assistance”

Alarm input)

It may be activated by (normally open) dry

contact pull-up to the port’s DSR output. It

may also tolerate user pull-up to external

+12 VDC (car battery), but an isolated dry

contact is preferred due to the risk of

noise-related false alarms caused by the

vehicle’s electrical system.

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.

See Appendix “A” on page 24 for further

details.

We recommend the use of a shielded 9-wire ca-

ble with all pins connected. These ports can be

used for unit configuration, maintenance & ad-

justment as well to connect user applications.

3.2.1 RS-232 Interface Signal Levels

In the descriptions of data signals, the following

conventions are used:

Table 2 - RS-232 Signal Levels

Term Alternates Signal level

1 asserted, spacing +3 to +15 V

OFF dropped, marking -3 to -15 V

120 20110-142 GeminiPD Installation Guide

4. WinRIS program

The 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:

Win ME

Win2000

Win NT

Win 9x

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 installed

is strongly recommend however most actions

can also be done using keyboard command

4.1 Operation

This 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 results

in unexpected transmissions.

Only left mouse button operation is supported.

Any command or selection shown in gray is ei-

ther unavailable or is awaiting another action

before activating.

Help in the program is available at all points by

pressing the F1 key. If a subject is highlighted,

the help displayed will be context sensitive.

4.2 To connect and start

WinRIS

Connect a suitable 9-conductor straight RS-232

cable, between the unit’s front-mounted

PC/Setup port and the RS-232 port of the PC or

portable computer that will be running Gem-

ini.exe program.

GeminiPD’s WinRIS program is available on

diskette, Dataradio p/n 980 03392-00n.

Refer to the WinRIS Readme.txt

file for details on how to set

MS-Windows environment, con-

nect, install and run this pro-

gram.

In summary, before starting the WinRIS when

running MS-Windows, click on “Start”, then on

"Run". Type the relevant path and variables on

the command line (or select by browsing) leading

to:

WinRIS.EXE COM[x], [speed],8,n,1

(where x is the PC COM port to be used) Of

course, the executable command may be used

alone without any variable added.

Click on “OK”.

It is also possible to create a PC desktop short-

cut icon for WinRIS:

• Start by right clicking anywhere on the

desktop,

• Select New,

• Select Shortcut and type the path as detailed

above directly on the command line (with or

without variables).

• Click Next,

• Type in an applicable name for the shortcut

icon,

• Click Next

• Select an icon (your choice) and

• Click on Finish.

Command line settings override the environment

variable, if any.

120 20110-142 GeminiPD Installation Guide

Figure 6 - WinRIS window

4.3 Window

This program uses one main display screen only.

Placing the cursor over a Toolbar or Button gen-

erates a ScreenTip. Referring to Figure 6, start-

ing from top and moving down to the bottom, the

screen display is made up of:

• A Menu bar, containing the menu names

listed below. They give access to command

options. Unavailable commands are shown in

light gray color. Shortcut keys are listed

whenever available.

! File menu lists the:

- Put From command (Ctrl+O)

- Get command (Ctrl+S)

- Get As command

and below a command separator, the:

- Exit command

! Test menu lists the:

- Modulated command

- UnModulated command

! View menu lists the:

- Toolbar checked command

- Status bar checked command

! Help menu lists the:

- Help Topics command

and below a command separator, the:

- About WinRIS command

• A Toolbar row, located immediately below

the menu bar containing buttons (each bear-

ing an icon) for commonly used tasks as

follows:

! Put From button

! Get button

Get As button

120 20110-142 GeminiPD Installation Guide

and 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 contains

two circular indicators

! DSR signal is High indicator

! CTS signal is High indicator

and three buttons for commonly used tasks as

follows.

! Station Reset button

! Modulated TXON button

! Unmodulated TXON button

• A Product field, displays product type be-

ing used after a connection to the product

has been established

• A Data section, containing the Banner plus

the Comments and Password fields and their

related Put buttons.

• A Channel(s) section, to select and activate

a channel.

• A Test section, with a Ping button and the

relevant address field.

• A Status bar, for displaying standard user-

messages. Other messages appear in dialog

window boxes or warning windows.

4.4 Functions

The WinRIS program is used to:

• Save an existing configuration from a unit to

a file.

• Take a configuration from a file and upload

it to a unit

• Check GeminiPD

• Test and/or trouble-shoot installations

4.4.1 “Station Reset” button

The Station Reset button is the only button

available when first starting the program and is

used to initiate the connection process.

• Press Station Reset.

• Enter Port and Baud rate information in the

Select Port sub-window.

Figure 7 - Select Port window

• Press OK to validate the selection (or Can-

cel to exit back to the main screen).

• All test buttons and fields are now activated.

The Station Reset button is also pressed as a last

step after doing a “Put From”. The Station Reset

button causes downloaded parameters from a file

or diskette to take effect in the connected unit.

Pressing Station Reset is not required after doing

any Comments or Password configuration change

as these have their own Put Comments and Put

Password buttons.

Station Reset does not break the connection.

4.4.2 Configuration to a file

Saving the unit’s configuration to a file allows

the user to:

• Subsequently restore the configuration.

• Safeguard a copy as documentation of the

configuration.

Note: The configuration and status files are

ASCII files and may be e-mailed or faxed to

technical support when requested to do so.

Warning:

Do not make any changes to these files. Any

changes made to the configurations MUST be

done at factory or by Dataradio system

engineering.

4.4.2.1 “Get” button

On the menu bar, select “File”, then the “Get”

command or press the “Get” button on the Tool-

bar to:

• Establish linking

120 20110-142 GeminiPD Installation Guide

• Download and automatically save the con-

nected unit’s configuration setting to a file

named with the unit' serial number: The

WinRIS status bar will then report “All pa-

rameters are successfully retrieved and

saved in file [unit' s/n].GM2. Any previous

configuration in 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.

4.4.2.2 “Get As” button

On the menu bar, select “File”, then the “Get

As” command or press the “Get As” button on

the Toolbar to:

• Establish linking

• Open the “File, Save As” window with the

ASCII 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 an

existing file.

• Status bar reports “All parameters are suc-

cessfully retrieved and saved in [filename].

4.4.3 Configuration from a File

Loading a configuration from a file to a unit is

useful to:

• Restore the operating characteristics of a

unit (Requires intervention with technical

support.)

• Carry out field updates using Dataradio

system engineering supplied diskette(s).

Warning:

Do not make any changes to

these files. Any changes made

to the configurations MUST be

done at factory or by Dataradio

system engineering.

4.4.3.1 “Put From” button

1- On the menu bar, select “File”, then the “Put

From” 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 (factory

or system engineering) diskette.

4- Select the appropriate file

5- Press the “OK” button.

The status bar reports: “[filename] is

downloading into unit” and up to 30 seconds

later displays: “All parameters are saved.

Apply Station Reset to take effect!” .

6- Press the “Station Reset” button. See section

4.4.1 for details.

4.4.4 Special Functions

The following WinRIS fields and buttons are

used to gather specific information concerning

the connected unit:

• Banner field

• Comments field and Put Comments button

• Password and Put Password button

4.4.4.1 Banner Field

This field displays a string made up of the serial

number of the connected unit followed by the

firmwares used and their version number.

Format is:

[serial number]:firmware 1 name, its version #,

firmware 2 name, its version #.

The serial number portion uniquely identifies the

unit. It is a variable length, maximum eight-

character alphabetic string assigned at the time

of manufacture. It is identical to the serial num-

ber printed on the label of the unit. This number

cannot be changed and is used as part of the on-

air protocol.

120 20110-142 GeminiPD Installation Guide

GeminiPD's firmwares resides in flash EPROM

and are designed to allow field upgrades.

When contacting your supplier, give the full ban-

ner string and the version of the WinRIS used.

You will find the version number by selecting

the “Help” menu option, then “About WinRIS”

command or pressing the “About” button on the

Toolbar.

The “Banner” field is blank prior to doing a

"Get", "Get As" or "Put From".

4.4.4.2 Comments

1- 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 make

the entry permanent. This field may be left

blank.

On subsequent “Get”, “Get As” or “Put From”,

this field displays entered comments. If no com-

ment was entered, the field will remain blank.

4.4.4.3 Password

The password feature is useful where two (or

more) fleets share the same radio channel. Mo-

biles without the proper password would still

receive the message but the contents would not

be intelligible.

1- Type your password directly in the “Pass-

word” field. It is a string of 32 hexadecimal

characters (exactly).

2- Press the button “Put Password” to make the

entry permanent. This field may be left

blank.

On subsequent “Get”, “Get As” or “Put From”,

this field will require that the correct password

be entered. If none was entered, the field will

remain blank.

Password information is NOT retrieved and

saved to a file, along with the configuration.

Clearing a Password is done by entering 32 zeros.

The Dataradio supplied password algorithm is

designed to thwart the casual observer only. It

provides a limited form of data privacy. There-

fore, if your security requirements are high, Da-

taradio urges you to use external encryption

technology (such as Data Encryption Standard

(DES)) in the Host and Mobiles computers.

4.4.5 Test Functions

The following WinRIS functions and buttons are

used to carry out testing or trouble-shooting on 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)

• Ping Address and Ping button

4.4.5.1 DSR signal is High indicator

The “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 is

High. The DMP protocol used requires that DSR

be normally asserted.

120 20110-142 GeminiPD Installation Guide

4.4.5.2 CTS signal is High indicator

The “Clear-to-Send” (CTS) indicator light, lo-

cated on the button bar (second indicator from

the left), is an RS-232 protocol port indication.

When lit, it indicates proper connection and that

the value is High. The DMP protocol used re-

quires that CTS be normally asserted.

4.4.5.3 Channel Selection

Select the radio channel on which you wish to

send a test transmission by clicking the relevant

available option button.

The program automatically detects which of

sixteen channels are present on the connected

unit. For each factory-set channel available, the

relevant round option button and channel number

is enabled (black). For each unavailable channel,

the round option button and channel number ap-

pears disabled (grayed-out). Only one channel at

a time may be selected.

Pressing the “Show All Channel Frequencies”

button opens a sub-window (see Figure 8) listing

in tabular form the radio transmitting and re-

ceiving frequencies programmed for each avail-

able channel(s).

To exit this sub-window, press the upper right

system box.

Figure 8 - Show All Channel Frequency

4.4.5.4 RSSI & Power Out Indicators

The Radio Signal Strength Indicator (RSSI) bar

graph usually displays in twin-columns the rela-

tive strength (in dBm) of an incoming RF signal

on the selected channel.

The left column indication, labeled "I", shows

the transceiver RX signal (rear mini-UHF con-

nector).

The right column indication, labeled "II", shows

the auxiliary RX signal (front mini-UHF connec-

tor).

Meter precision is usually better than 3 dBm.

This indicator functions as a single column

"Power" (Watt) meter when using either of the

test functions: "TXON (Modulated)" or "TXON

(Unmodulated)" with a range of 0 to 60 watts.

Precision is usually better than +/-3 watts.

Note: This internal wattmeter is designed for

use as reference only and is not a sub-

stitute for a quality external precision

measuring instrument.

4.4.5.5 TXON tests

TXON test functions are selected by choosing

“Test” from the file menu, then “Modulated” or

“UnModulated” command or by pressing the

relevant button on the Toolbar.

4.4.5.5.1 Unmodulated Carrier

Unmodulated carrier gives a clear carrier and is

frequently used for checking:

• Frequency error

• Forward and reverse power

Press the TXON (Unmodulated) button to trans-

mit an unmodulated 20-seconds test signal on the

channel selected or until the button is pressed

again.

The functions of all the other buttons are inop-

erative during test transmissions.

Power check:

1- Connect an in-line power meter between the

radio and the antenna.

2- Measure the forward (nominal 40W for UHF

model and 35W for 800MHz model) and re-

flected power levels by powering TX ON

120 20110-142 GeminiPD Installation Guide

(<5% of forward power or as specified by

System Eng.).

4.4.5.5.2 Modulated Carrier

Test transmission generates a carrier modulated

with 1kHz sinewave, at deviation level that de-

pends on model and network speed:

Table 3 - Carrier Modulation

Carrier Modulation

Full Channel

Network Speed Typical Deviation

25600 ± 4.01)/±3.72) kHz

SRRC

4FSK

19200 ± 4.5 kHz

19200 ± 4.0 kHz

16000 ± 4.0 kHz

DGMSK

9600 ± 3.0 kHz

Half Channel

Network Speed Typical Deviation

16000 ± 1.91)/±2.42) kHz

SRRC

4FSK

14400 ± 2.31)/±2.72) kHz

DGMSK 9600 ± 2.5 kHz

Different modulation types are not interoperable

1) UHF model 2) 800MHz model

This function is frequently used for checking

frequency deviation.

Press the TXON (Modulated) button to begin

transmitting a 20-seconds modulated test signal

on the channel or until the button is pressed

again.

The functions of all the other buttons are inop-

erative during test transmissions.

4.4.5.6 Ping Button

The Ping function checks connectivity by testing

the ability of GeminiPD to communicate with the

base station by sending a short transmission

query and receiving a confirming response.

1- Specify the channel (paragraph 4.4.5.3) and

ping address (paragraph 4.4.5.7)

2- Press the Ping button to start ping testing.

The functions of all the other buttons are inop-

erative during pinging.

The program sends a test query and continues

transmitting pings at brief intervals.

As soon as a Ping test signal is returned from the

address selected, the status bar displays:

• “Ping Successful” and pinging stops.

• If no ping signal is received after 60 sec-

onds, ping testing stops and the status bar

displays “Ping Failed”.

4.4.5.7 Ping addresses

Addresses may be entered by typing directly in

the “Ping Address” field in two ways:

1. Numerically, the valid address range is

1-126.

2. As an “Alpha-Mapped-Nibble” (AMN) ad-

dress, consisting of upper case letters in the

range A-P. The valid address range is A to

GN.

The base address is usually: 1.

The program may display one of the following

messages on the status bar:

For ParagonPD product:

“Ping address is not in AMN or number format”

For GeminiPD product:

“Ping address is not in the range A – GN”

In either case, check that the address entered is

within the acceptable range, is of a valid format

and correctly typed.

4.4.6 Status Bar

The Status Bar is located along the bottom edge

of the WinRIS window. To display or hide the

bar, check or uncheck the command in the

“View” menu.

The left area of the status bar describes actions

of menu items as you navigate using the direc-

tional arrows. This area also shows messages

describing actions of toolbar buttons as you de-

press them, before releasing them. If after

120 20110-142 GeminiPD Installation Guide

viewing the description of the toolbar button

command you wish not to execute the command,

then release the mouse button while the pointer

is 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 are latched

down:

Indicator Description

CAP The Caps Lock key is latched down.

NUM The Num Lock key is latched down.

SCRL The Scroll Lock key is latched down.

Table 4 - Key latch indications

120 20110-142 GeminiPD Installation Guide

5. Trouble-Shooting and

Testing

The checks described below should be done at

annual intervals or whenever deterioration in per-

formance is noted.

5.1 Equipment Required

• 13.8 VDC (nominal) car battery, or

13.8 VDC/20A regulated power supply (In

the 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 to

connect GeminiPD to the service monitor.

5.2 Basic Tests

Recommended checks:

1. Transmit and Reverse power output

2. Carrier frequency error

3. Frequency deviation

4. Receivers RSSI Check

5. Link test between Gemini and the base sta-

tion.

6. GPS test (not required on GeminiPD Lite

model).

Refer to Table 5 for checks 1 to 5.

Important note: Before proceeding make sure

that the service monitor has been calibrated

recently and has warmed up for at least the

time specified by its manufacturer.

Some reported frequency and deviation prob-

lems have actually been erroneous indications

from service monitors that have not adequately

warmed up. This is particularly likely when

field service is done during winter months

Refer to the WinRIS section for function

details

5.3 GPS Test

About three minutes after ignition is turned-on,

the PWR LED on the GeminiPD front panel

should flash in amber color at the rate of one

pulse per second.1 This indicates that the GPS

has acquired the sky position of a sufficient

number of satellites to arrive at a ground posi-

tion solution.

If the GPS has a good view of the sky and still

has not generated any position solution within

three minutes (it may take up to 10 minutes or

more if the sky view is partially blocked.), the

following trouble-shooting procedures should be

undertaken to isolate the fault:

1) Disconnect the GPS antenna cable connector

from the Gemini radio and check for + 5

VDC on the center pin of the GPS antenna

connector on the radio using a Digital volt-

meter (DVM). If the voltage is present, do not

reconnect the cable and proceed to step 2.

2) With the DVM, measure resistance between

the shell and the center conductor of the GPS

cable, resistance should be between 100 and

300 Ohms, if it measures open or short circuit

the GPS antenna is either a passive antenna

which is the WRONG type, or a defective

active antenna, replace with a known good

active antenna.

3) Connect the new antenna to Gemini and wait

about three minutes for the POSITION

ACQUIRED indicator to start flashing on

GeminiPD, if not, the Gemini radio or its GPS

receiver is defective

1 Lit green and flashing amber for the 800MHz model un-

der 2% duty cycle limit.

120 20110-142 GeminiPD Installation Guide

Table 5 - Tests, Full & Half Channel Units

CHECKLIST

STEP 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 LED

Sequence as per Table 1 - GeminiPD LEDs indications

2Connect and save con-

fig

Press WinRIS Get button

as per section 4.4.2

3Main transceiver Out-

put Power

Press TX (Unmod)

UHF: 40 watts

800MHz: 35 watts

both +10%, -10%

Factory-settable down to 10

watts (5 watts for 800MHz

model) as per customer request

Service monitor set to

read power

50W in-line wattmeter

Refer to factory technical

support.

4Main transceiver

Reflected Power

Press TXON (Unmod)

<5% of forward power or as

specified by System Eng. 10W in-line wattmeter Check for bad connec-

tions, damaged coax

cable, etc.

5Carrier Frequency Er-

ror

Press TX (Unmod)

±300 Hz Service monitor set to

read frequency error Refer to factory technical

support.

SRRC4FSK, Full ch. unit:

25.6 kb/s: ±4.0 kHz (UHF)

±3.7 kHz (800MHz)

19.2 kb/s: ±4.5 kHz

SRRC4FSK, Half ch. unit:

16.0 kb/s: ±1.9 kHz (UHF)

±2.4 kHz (800MHz)

14.4 kb/s: ±2.3 kHz (UHF)

±2.7 kHz (800MHz)

Service monitor set to

read deviation

(IF filter set to Mid or

30 kHz position) Refer to factory technical

support.

4TX Deviation

Press

TXON (Modulated)

Carrier will be modulated

with a 1 kHz tone.

DGFSK, Full ch. unit:

19.2 and 16 kb/s: ±4.0 kHz

9.6 kb/s: ±3.0 kHz

DGFSK, Half ch. unit:

9.6 kb/s: ±2.5 kHz

Tolerance is +5%, -10% for all bit

rates.

5RF Link test

"Ping" a base station “Ping Successful” as per section

4.4.5.6

Check on the WinRIS RSSI bar

graph if the base station is within

range (i.e. better than -107dBm)

Refer to factory technical support.

6 Set the service monitor to generate at the levels mentioned below. The carrier generated should be modulated with

a 1.0 kHz tone at deviation of +/- 4.0kHz (full ch.) or +/-2.5kHz (half ch.).

7Main Receiver

RSSI checks

-70dBm

-110dBm

-120dBm

- 70 dBm +/-3

-110 dBm +/-3

-120 dBm +/- 3

WinRIS bar graph

Refer to factory technical

support.

The RSSI checks give a

good indication of re-

ceivers' health.

120 20110-142 GeminiPD Installation Guide

8Aux Receiver

repeat as per step 7 same as step 7 WinRIS bar graph Refer to factory technical

support.

1 (unless you have set a lower value). Note that readings less than 40 watts (UHF model) or 35 watts (800MHz model) may be due to

losses in cables used for testing. Check also your wattmeter frequency calibration curve. Do not be too ready to condemn the trans-

mitter.

120 20110-142 GeminiPD Installation Guide

6. Specifications

GENERAL

UHF 800 MHz

Frequency Tx 403 - 512 MHz1806 – 824 MHz (821-824)

Frequency Rx 403 - 512 MHz 1851 – 869 MHz (866-869)

Channel spacing 12.5 or 25 kHz

Frequency Control Digital Synthesizer / uController

Frequency Stability 1.5 ppm

Operating temperature -30°C to +60°C (25°C nominal) @ 95% non-cond. RH

Modes of Operation Simplex or Half Duplex

Number of channels 16 internally stored

Supply voltage 13.6Vdc nominal (negative ground)

10.9 – 16.3 VDC

Circuit Protection 15 Amp fuse external

2 & 4 Amp fuse internal

RX Current at 13.6 VDC < 550 mA Standby (with auxiliary receiver)

TX Current at 13.6 VDC < 15 A

TX/RX separation 5 MHz typical

Nominal Dimensions 7.050” D x 6.000” W x 2.0000” H

Weight: < 3.5 lbs.

RF input/output Impedance 50 ohms nominal

RF connector Main TX/RX: mini-UHF female

Auxiliary RX: mini-UHF female

GPS RX: SMA female (Not installed for GeminiPD Lite version)

Interface connector 3x DE-9F D-subminiature

RECEIVER

Sensitivity (12 dB SINAD) < 0.35 µV *

Selectivity (25KHz) 75 dB typical

70 dB minimum

Selectivity (12.5) 65 dB typical

60 dB minimum

Intermodulation 75 dB typical

70 dB minimum

Spurious rejection 75 dB typical

70 dB minimum

FM 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 beacons

and should not be programmed into the unit.

120 20110-142 GeminiPD Installation Guide

TRANSMITTER

Power output UHF = 10-40 watts 800 MHz = 5-35 watts

Duty cycle 20% @ full power, 30 secs. max. TX time (subject to FCC MPE limit)

Conducted Spurious -75 dBc (-38 dBm @10 W) typical

Frequency stability 1.5 ppm

FM hum and noise -45 dB max (25 kHz)

Attack time < 10 ms

Operation Simplex/half duplex

Data rates and

Modulation type

DGFSK (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 compatible

DISPLAY and CONTROLS

2 status LEDs RX/TX, PWR

Environmental MIL. spec.

Environment Categories MIL Spec. 810E Other

Method Procedure

Low Pressure Operations 500.3 II

High Temperature Operations, Storage 501.3 I(A1), II

Low 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 I

Rain1Drip rain 506.3 II IEC IP54 only II

Humidity1Induced, Aggravated 507.3 II,III

Dust1Blowing dust 510.3 I IEC IP54

Vibration Ground Mobile 514.4 I(8) EIA RS-204C Forestry

Shock Functional, Bench handling 516.4 I,VI EIA RS-204C

FCC / IC CERTIFICATIONS EMISSION DESIGNATORS

FCC IC (DOC) Bit rate Baud rate Modulation UHF 800MHz

UHF EOTGPDA 773195525A 9600 9600 DGMSK 8K60FID 8K60FID

16000 16000 DGMSK 15K3FID 15K3FID

800 MHz EOTGPDB 773195643A 19200 19200 DGMSK 15K0FID 15K0FID

19200 9600 SRRC4FSK* 16K0FID 16K0FID

25600 12800 SRRC4FSK* 15K6F1D 15K6FID

16000 8000 SRRC4FSK* 8K17F1D 10K0F1D

14400 7200 SRRC4FSK* 8K67F1D 11K0F1D

* IC – Class II permissive change

1 MIL Specification not guaranteed with GeminiPD Lite version.

120 20110-142 GeminiPD Installation Guide

Appendix 1 - "Officer Requires Assistance" alarm function

The contents of this appendix are also available as Technical Instruction Sheet 009 (TIS009),

document part number 122 20110-009 dated December 20, 2000.

Overview

The DTE Port Interface pin 9 (AUX) on DEV-2 is used for the “Officer Requires Assistance”

alarm function.

Intended Audience

This document is designed for use by System Integrators.

Physical Connection

This auxiliary input may be activated by (normally open) dry contact pull-up to the port’s DSR

output. It can also tolerate user pull-up to external +12 VDC (car battery), but an isolated dry

contact is preferred due to the risk of noise-related false alarms caused by the vehicle’s electrical

system.

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).

Operation

When 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 account

of lower priority traffic and to remove non-emergency messages from duty-cycle management

(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 to

configuration) but will cycle forever until D-ACKed* or Reset*.

• Lack of base DBA synch will not prevent transmission to maximize the chance that a base

gets the alarm signal. DBA “Freewheel” mode will be forced until the alarm is acknowledged.

* For details on DMP terms, refer to DMP 1.5 manual, version 4.0

CalAmp Wireless Networks GPDA GeminiPD User Manual Appendix A preliminary version 1 42

CALAMP WIRELESS NETWORKS INC. GeminiPD Appendix A preliminary version 1 42

Contents

Appendix A preliminary version 1 42

Navigation menu

Namespaces

Views

Navigation