Motorola CP150 Basic Service Manual page 32

3-4
Channel Selector
Switch Position
1 Low Power
8 High Power
2 Low Power
9 High Power
3 Low Power
10 High Power
4 Low Power
11 High Power
5 Low Power
12 High Power
6 Low Power
13 High Power
7 Low Power
14 High Power
Note: Only one power setting is supported in 2 W models. Therefore, only test channels 1 through 7 are
applicable for 2 W models.
Test Name Communications Analyzer
Reference Mode: PWR MON
Frequency 4th channel test frequency
Monitor: Frequency error
Input at RF In/Out
Rated Audio Mode: GEN
Output level: 1.0mV RF
4th channel test frequency
Mod: 1kHz tone at
3kHz deviation
Monitor: DVM: AC Volts
Distortion As above, except to distor-
tion
Sensitivity As above, except SINAD,
(SINAD) lower the RF level for 12dB
SINAD.
Table 3-4 Test Frequencies
VHF 1
Test Channel (136-162
MHz)
TX#1 or #8
136.625
RX#1 or #8
TX#2 or #9
140.325
RX#2 or #9
TX#3 or #10
144.525
RX#3 or #10
TX#4 or #11
148.875
RX#4 or #11
TX#5 or #12
153.325
RX#5 or #12
TX#6 or #13
157.875
RX#6 or #13
TX#7 or #14
161.975
RX#7 or #14
Table 3-5 Receiver Performance Checks
*
*
VHF 2 UHF 1
(146-174 (403-440
MHz)
146.625 403.625
150.775 409.775
155.275 415.275
160.125 421.125
164.475 427.475
169.475 433.475
173.875 439.875
Radio Test Set
TEST MODE, PTT to continu-
Test Channel ous (during the
4 carrier performance
squelch out- check)
put at
antenna
TEST MODE PTT to OFF
Test Channel (center), meter
4 carrier selector to
squelch Audio PA
As above As above
As above PTT to OFF
(center)
UHF 2
(438-470
MHz) MHz)
438.625
443.775
448.275
454.125
459.475
464.475
469.875
Comments
Frequency error to be
±186 Hz VHF1
±200 Hz VHF2
±525 Hz UHF1
±568 Hz UHF2
±600 Hz UHF3
Set volume control to
3.2Vrms
Distortion <5%
RF input to be
<0.30µV (0.25 µV
typical).
RF Test Mode
UHF 3
(465-495
MHz)
465.625
470.775
475.275
480.125
485.475
490.475
494.875