User`s guide
67
Transmit Power
Alignment
From the MAIN MENU, press
F2
twice and then
F3
to access the
TRANSMIT POWER ALIGNMENT screen.
Refer to your Radio Service Manual for the Transmitter Power
Alignment procedure.
The adaptive splatter control feature uses the transmitter power
settings for reduced transmit power under strong received signal
conditions to reduce adjacent-channel interference.
Programming Procedure
1. Press
F6
at the TRANSMIT POWER screen to key up the radio. (The
radio’s RF output must be terminated into a 50 ohm load).
2. While transmitting, modify the Tx power softpot setting with the
UP/DOWN arrow keys. A relative Tx power value will be displayed
(not in Watts), but the actual transmitter power output must be
determined from the service monitor.
3. Measure the actual RF power with a service monitor.
4. Press
F6
to de-key the radio and
Tab
to move between frequency
points.
5. Press
F8
to save the new value.
BBC
MOTOROLA Radio Service Software Use UP/DOWN Arrows To Adjust Softpot.
ASTRO Model:
MAIN:SERVICE:TX ALIGN:TX POWER
TRANSMIT POWER
--------------
Current Value New Softpot Value
Frequency High Pwr Mid Pwr Low Pwr High Pwr Mid Pwr Low Pwr
--------- -------- ------- ------- -------- ------- -------
806.0125 6 6 50 6 6 50
815.0125 8 8 51 8 6 51
824.9875 10 10 52 10 10 52
851.0125 13 13 54 13 13 54
860.5125 13 13 55 13 13 55
869.9875 13 13 56 Transmitter..Off 15 15 56
0 127
MIN |--X-+----+----+----+----+----+----+----+----+----+----+----| MAX
F1 F2 F3 F4 F5 F6 F7 F8 F9 F10
HELP TOGGLE PROGRAM EXIT
PTT VALUE
!
Caution
This procedure should be attempted only by qualified
service personnel. Failure to perform alignment
procedures properly may result in seriously degraded
radio or system performance.