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3-4
Transceiver Performance Testing
Table 3-3: Test Environments
Table 3-4: Test Channel Spacing
No. of
Beeps
Description
Function
1
Carrier Squelch
RX: if carrier detected
TX: mic audio
1
Tone
Private-Line
RX: unsquelch if carrier and tone (192.8Hz) detected
TX: mic audio + tone (192.8Hz)
2
Digital
Private-Line
RX: unsquelch if carrier and digital code (131) detected
TX: mic audio + digital code (131)
3
Dual-Tone
multiple
frequency
RX: unsquelch if carrie detected
TX: selected DTMF tone pair
9
MDC1200
HSS
RX: unsquelch if carrier detected
TX: 1500Hz tone
5
Unsquelch
Open
RX: constant unsquelch
TX: mic audio
11
CMP
RX: if carrier detected
TX: mic audio
12
LLE
RX: if detected
TX: mic audio
Number of Beeps
Channel Spacing
1
25 kHz
2
12.5 kHz
3
20 kHz
Содержание CDM1250
Страница 1: ...CDM Series Professional Series Two Way Mobile Radio Basic Service Manual ...
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Страница 34: ...2 22 Service Aids Notes ...
Страница 60: ...4 18 Radio Programming and Tuning Procedures Notes ...
Страница 72: ...6 8 Accessories Notes ...
Страница 86: ...7 14 Model Chart and Test Specifications NOTES ...
Страница 90: ...Glossary 4 Glossary Notes ...
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