TR-800 Service Manual
58
performing wideband specs adjustment
and so does narrowband channel. DO NOT
perform wideband tuning by entering
tuning mode from a narrowband (12.5kHz)
channel and vice versa.
≤
5%
Tx S/N:
≥
44dB (25kHz)
≥
40dB (12.5kHz)
Max. Power output (without duplexer):
45±2W(UHF)
50±2W(VHF)
Uni-directiona
l repeater
(forward flat
audio) Test
Channels without
tones.
Signal Generator
AF1:1kHz@3kHz/1.5k
Hz Deviation
CSA
Tx
connector
(Master
Radio)
Programming
Software:
Adjustment(Sla
ve)
→
Tonegain
→
Fwd_Flat_Au
dio
Adjust the signal output amplitude of CSA to
-47dBm, adjust repeater audio deviation to
60% System Dev. via programming software;
check the modulation distortion and RX S/N;
decrease the signal output amplitude of CSA
and check the duplex sensitivity.
Note: Enter tuning mode from a wideband
(25kHz) current channel and select “wide”
to initialize test frequency before
performing wideband specs adjustment
and so does narrowband channel. DO NOT
perform wideband tuning by entering
tuning mode from a narrowband (12.5kHz)
channel and vice versa.
Duplex sensitivity:
-117(+1/-3dBm)
Duplex frequency deviation:
2.9±0.2kHz (25kHz)
1.4±0.1kHz (12.5kHz)
Duplex audio distortion:
≤
6%
Tx S/N:
≥
43dB (25kHz)
≥
38dB (12.5kHz)
Max. Power output (without duplexer):
45±2W(UHF)
50±2W(VHF)
Uni-directiona
l repeater (flat
audio
balance) Test
Channels without
tones.
Signal Generator
AF1:[email protected]/
0.35kHz Deviation
CSA
Tx
connector
(Master
Radio)
Programming
Software:
Adjustment(Ma
ster)
→
DI
Deviation
Give a -47dBm signal with proper modulation
deviation of 154Hz to the receiver. Select a
Low/Mid/High band frequency and click “TX
on” to key the transmitter. Adjust the CTCSS
deviation to a proper value and click “Save”.
Note: Enter tuning mode from a wideband
Duplex frequency deviation:
0.75±0.1kHz (25kHz)
0.35±0.1kHz (12.5kHz)0
Summary of Contents for TR-800
Page 17: ...TR 800 Service Manual 15 Figure 6 5 Figure 6 6 ...
Page 41: ...TR 800 Service Manual 39 Figure Ⅰ Block Diagram ...
Page 81: ...TR 800 Service Manual 79 Packing ...
Page 82: ...TR 800 Service Manual 80 TR 800 Wiring Diagram ...
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