Gm1200E Tuning Procedure; General - Motorola GM1200E Service Manual

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GM1200E Tuning Procedure

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General

The recommended hardware platform is a 386 or 486 DX 33 PC (personal computer) with 8 Mbytes
RAM, MS DOS 5.0™, Windows 3.1™, and DPS (Dealer Programming Software). These are
required to align the radio. Refer to your DPS Installation Manual for installation and setup
procedures for the required software; the user manual is accessed (and can be printed if required)
via the DPS.
To perform the alignment procedures, the radio must be connected to the PC, RIB (Radio Interface
Box), and Universal Test Set as shown in figure 4-1.
MIC IN
PROGRAM/TEST CABLE
GTF377 (Databox Radios only)
or GTF374
All tuning procedures are performed from the Service menu.
Before going into the Service menu, the radio must first be read using the File / Read Radio menu (if
the radio has just been programmed with data loaded from disk or from a newly created codeplug,
then it must still be read so that the DPS will have the radio's actual tuning values).
All Service windows read and program the radio codeplug directly; you do NOT have to use the DPS
Read Radio / Write Radio functions to program new tuning values.
CAUTION:
Radio Tuning Procedure
SMA-BNC
58-80348B33
RADIO
TEST CABLE
GTF-376
Note: Battery can be used in RIB
making power supply optional
25PIN
RLN-4008B
RIB POWER SUPPLY
EPN4041 (230 VAC. Euro)/
EPN4040 (230 VAC. UK)
Figure 4-1 Radio Alignment Test Setup
DO NOT switch radios in the middle of any Service procedure. Always use the
Program or Cancel key to close the tuning window before disconnecting the radio.
Improper exits from the Service window may leave the radio in an improperly
configured state and result in seriously degraded radio or system performance.
TRANSMIT
BNC
RECEIVE
TEST SET
RTX4005/
GTF180
15PIN
RIB
COMPUTER INTERFACE CABLE
30-80369B72 (IBM "AT" 9PIN ONLY)
30-80369B71 (IBM "XT" 25PIN ONLY)
GM1200E Tuning Procedure
SERVICE MONITOR
30 dB PAD
OR COUNTER
WATTMETER
30 dB PAD
RF GENERATOR
AUDIO IN TX
AUDIO GENERATOR
RX
SINAD METER
AC VOLTMETER
DATA
GND
COMPUTER
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