Transmit Deviation Balance Alignment - Motorola MCS 2000 User Manual

Transmit Deviation
Balance Alignment
BBD
From the MAIN MENU, press F2 twice and then F4 to access this
screen.
MOTOROLA Radio Service Software
MCS Model:
.TRANSMIT DEVIATION BALANCE (COMPENS)
TRANSMIT DEVIATION BALANCE (COMPENSATION)
-----------------------------------------
Current
Frequency Value
--------- -------
136.0125 32
144.0125 32
154.0125 32
160.0125 32
167.5125 31
173.9875 29
177.9875 30
0
MIN |----+----+----+----+----+----X----+----+----+----+----+----| MAX
F1 F2 F3
HELP
Balanced Attenuator Alignment is required after replacing (or servicing) the
Controller Board or the RF Board. Balanced attenuator alignment
balances the modulation contributions of the low and high frequency
portions of a baseband signal.
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.
Caution
Proper compensation alignment is critical to the
operation of signalling schemes that have very low
frequency components (DPL for instance) and could
result in distorted waveforms if improperly adjusted.
Refer to your Radio Service Manual for the Transmit Deviation Balance
Alignment (Compensation) procedure. This procedure needs to be
performed at multiple frequencies to allow for proper alignment across
the entire RF band. The transmit and receive bands are divided into
frequency zones with a calibration point (value) in each zone.
Compensation alignment will be automatically calculated when you
perform this procedure.
Use UP/DOWN Arrows To Adjust Softpot.
New Softpot Value
-----------------
Transmitter..Off
F4 F5 F6 F7
TOGGLE
PTT
32
32
32
32
31
29
30
63
F8 F9 F10
PROGRAM EXIT
VALUE
45