MM-007024-001
53
GPS ANTENNA
CONNECTION
NOT SHOWN.
Wattmeter
N-Type to
TNC-Type Adaptor
TNC Male to N Female
Coaxial Jumper Cable
Slug
(25 W, 400–
1000 MHz)
Dummy
Load
Antenna
IN
OUT
Radio’s Antenna
Cable
TNC Female
Connector
M7250
Mobile Radio
(Rear View)
Radio’s DC
Power Cable
Installation’s DC
Power Cable
From 13.8-Volt
Fused Power Source
3-Pin
Connectors
Radio’s I/O
Cable
44-Pin
Connectors
SERIAL
MODEM
GPS
Personal Computer (PC)
Running Terminal
Application
COM1 Port
Serial Programming Cable
MAMROS0055 (or equivalent)
Full-Data I/O Option Cable
1000022242-0001
Or
Programming Option Cable
1000022242-0002
(Has the “SERIAL” connector only)
9-Pin
Connectors
No GPS/MODEM connection
required when programming.
Figure 16-1
:
Wattmeter Connections
3.
If necessary, apply power to the radio and turn it on.
4.
Set the radio to a test channel.
5.
Position the wattmeter’s slug to measure forward RF output power. Rotate it if necessary. The arrow
on the face of the slug must point away from the radio and towards the dummy load for forward
power measurements.
6.
Using Full-Data I/O Option Cable 1000022242-0001 and Serial Programming Cable MAMROS0055
(or equivalent), connect the radio’s serial port to the Personal Computer’s COM1 serial port. The
Serial Programming Cable is a standard modem-type serial interface cable.
7.
At the computer, start the terminal application (e.g., HyperTerminal) and verify its configuration as
listed in Table 16-1.
8.
Measure the radio’s RF output power by typing these commands. Send the commands in the order
presented. For the ^ symbol, type ^ (shifted 6 key on a standard keyboard). For letters, observe case
(e.g., type W, not w). Press the <Enter> key after typing each command:
^8
— puts the radio into 100% duty cycle test mode
^W
— causes the radio to transmit
^X
— causes the radio to terminate transmissions
atz9
— causes the radio to reboot