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VRM500 Receive
Discriminator Level
From the MAIN MENU, press F2, F3 and then F9 to access this screen.
This screen can be accessed from the RECEIVER ALIGNMENT MENU only
if the current radio model is VRM500-capable. Refer to your Radio Service
Manual for the VRM500 Receive Discriminator Level procedure. This
procedure tunes the receive level signal at the receive data pin for use
with the VRM500. This is done to ensure proper input levels for the
VRM500 unit.
Programming Procedure 1. Generate a 1 kHz wave at the carrier frequency shown. (Refer to
the Radio Service manual for the correct deviation to use.)
2. Measure the receive signal level at the receive data pin on the
accessory connector.
3. While generating, use the UP/DOWN arrow keys to adjust the
VRM500 receive signal according to instructions in the Radio
Service manual.
4. Press F8 to program the new value into the radio.
Function Key Description
F8 - PROGRAM VALUE Program the selected value into the radio.
Field Definition
New Softpot Value This softpot value determines the VRM500 receive signal level at the
receive data pin on the accessory connector. The status bar shows the
relationship between this setting and the minimum and maximum
settings.
BCI
MOTOROLA Radio Service Software Use UP/DOWN Arrows To Adjust Softpot.
MCS Model:
...VRM500 RX DISCRIMINATOR LEVEL
VRM500 RX DISCRIMINATOR LEVEL
-----------------------------
Frequency Current Value
--------- -------------
136.0625 81 New Softpot Value..... 81
0 127
MIN |----+----+----+----+----+----+----+--X-+----+----+----+----| MAX
F1 F2 F3 F4 F5 F6 F7 F8 F9 F10
HELP PROGRAM EXIT
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.
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