
TEST 21
Test 21 performs receiver test on RX/EX Signal Path PCB 715 in SSB mode and with SSB filter.
By choosing the right synthesizer frequency the signal passes the 45 MHz filter and is mixed to
a 1 kHz tone in the audio part. This makes the Automatic Gain Control lower the sensitivity and
the AF check indicating AF. RX mute is also checked.
Band : 45 - 52.5 MHz
1.LO : 44.99900 MHz
3.LO : 456.00 kHz
Error code
Possible error source
PCB
00
OK
01
Receiving signal path
715
Cabling 910 - 715 or 911 - 715
02
AGC 715
Cabling 910 - 715 or 911 - 715
03
RX mute
715
TEST 22
Test 22 performs receiver test on RX/EX Signal Path PCB 715 in AM mode and with AM filter.
By choosing the right synthesizer frequency the signal passes the 45 MHz filter and is mixed to
generate an unmodulated carrier . This makes the Automatic Gain Control lower the sensitivity
and the AF check indicating no AF. Band : 45 - 52.5 MHz
1.LO : 44.99900 MHz
3.LO : 456.00 kHz
Error code
Possible error source
PCB
00
OK
01
Receiving signal path, AM detector
715
Cabling 910 - 715 or 911 - 715
02
AGC
715
Cabling 910 - 715 or 911 - 715
SERVICE
SELF TEST
5-34
TRP 9250 TECHNICAL MANUAL
Summary of Contents for TRP 9250
Page 1: ...TRP 9250 250 Watt Radio Transceiver for MF HF SKANTI...
Page 5: ...ff qom VORM qb ekf i j kr i...
Page 7: ...INTRODUCTION 1 2 TRP 9250 TECHNICAL MANUAL...
Page 17: ...OPERATION 2 OPERATION Table of Contents 2 2 TRP 9250 TECHNICAL MANUAL...
Page 73: ...INSTALLATION 3 INSTALLATION Table of contents 3 2 TRP 9250 TECHNICAL MANUAL...
Page 99: ...INSTALLATION 3 28 TRP 9250 TECHNICAL MANUAL...
Page 139: ...TECHNICAL DESCRIPTION 4 TECHNICAL DESCRIPTION Table of Contents 4 2 TRP 9250 TECHNICAL MANUAL...
Page 147: ......
Page 149: ......
Page 150: ......
Page 152: ...SERVICE 5 SERVICE Table of contents 5 2 TRP 9250 TECHNICAL MANUAL...
Page 166: ...SERVICE POWER PROTECTION 5 16 TRP 9250 TECHNICAL MANUAL...
Page 174: ...SERVICE SERVICE RELATED PROG KEY OPERATIONS 5 24 TRP 9250 TECHNICAL MANUAL...
Page 194: ...DSC 9000 FRONT PANEL DSC OPERATION DSC 9000 FRONT PANEL 6 2 TRP 9250 TECHNICAL MANUAL...
Page 264: ...DSC OPERATION 6 72 TRP 9250 TECHNICAL MANUAL...
Page 266: ...DSC INSTALLATION 7 DSC INSTALLATION Table of Contents 7 2 TRP 9250 TECHNICAL MANUAL...
Page 288: ...DSC INSTALLATION 7 24 TRP 9250 TECHNICAL MANUAL...