Philips PRM80 Series - Transmit Modulation Alignment with CTCSS

4.5.7 Transmit Modulation Alignment (No CTCSS)(Continued)
Step
No
Result
Measured by
Result
Measured at
Adjust
Result Notes
13
Deviation
monitor
Antenna
socket SK402
R316
a)+/- 4.8kHz
+0/-0.2
b)+/- 3.8kHz
+0/-0.2
c)+/- 2.4kHz
+0/-0.1
a) 25/30kHz channel
spacing
b) 20kHz channel
spacing
c) 12.5kHz channel
spacing. Slight
re-adjustment
may be necessary
14 Disable PTT
4.5.8 Transmit Modulation Alignment with CTCSS
Step
No
Result
Measured by
Result
Measured at
Adjust
Result
Notes
1
Perform Alignment Procedure 4.5.7
Leave Radio Screen Fitted When Test Is Completed.
Switch Off AF Signal. Generator..
2
Switch on power
select channel 6.
CTCSS test channel
3
Activate PTT
4
Deviation
monitor
Antenna
socket SK402
R354
a)+/- 580Hz
+/- 30Hz
b) +/- 460Hz
+/- 25Hz
c)+/- 290kHz
+/- 15Hz.
a) 25/30kHz channel
spacing
b) 20kHz channel
spacing
c) 12.5kHz channel
spacing.
5
Microphone
socket SK201
AF sig. gem.
output.
1 kHz freq
400+/- 40mV
rms
B
Deviation
monitor
Antenna
socket SK402
R316
a)+/- 4.9kHz
+0/-0.2
b)+/- 3.9kHz
+0/-0.2
c)2.4kHz
+0/-0.1
a) 25/30kHz channel
spacing
b) 20kHz channel
spacing
c) 12.5kHz channel
spacing
7 Disable PTT
Section 4 Page 10