5-5
Maintenance
Sequence
Sequence
Sequence
Sequence
Sequence
Condition
Condition
Condition
Condition
Condition
Adjust Point
Adjust Point
Adjust Point
Adjust Point
Adjust Point
Target Level
Target Level
Target Level
Target Level
Target Level
1
CH16 (156.800 MHz) SG output: 10uv
L16, L18-L22
Maximum SINAD
2
CH60 (156.025 MHz) SG output: 0.6uv
L16, L18-L22
Over 12dB SINAD
3
WX0 (163.275 MHz) SG output: 0.6uv
L16, L18-L22
Over 12dB SINAD
5.3.5 RF Sensitivity Adjustment (All Channel
5.3.5 RF Sensitivity Adjustment (All Channel
5.3.5 RF Sensitivity Adjustment (All Channel
5.3.5 RF Sensitivity Adjustment (All Channel
5.3.5 RF Sensitivity Adjustment (All Channel
Receiver)
Receiver)
Receiver)
Receiver)
Receiver)
1) Connect a RF Signal Generator (SG) to the antenna connector and a
SINAD meter to the AF out 1 (pin 10 of J2).
2) Set up the SG at 1 kHz+/-3 kHz deviation and adjust L16, L18-L22 on the
RF PCB as follows.
Caution: Do not tune L17.
Caution: Do not tune L17.
Caution: Do not tune L17.
Caution: Do not tune L17.
Caution: Do not tune L17.
5.3.6 RF Sensitivity Adjustment (CH 70
5.3.6 RF Sensitivity Adjustment (CH 70
5.3.6 RF Sensitivity Adjustment (CH 70
5.3.6 RF Sensitivity Adjustment (CH 70
5.3.6 RF Sensitivity Adjustment (CH 70
Receiver)
Receiver)
Receiver)
Receiver)
Receiver)
1) Set up the SG to CH70 (156.525 MHz) at 1 kHz +/-3 kHz deviation.
2) Connect the SINAD Meter to the AFout2 (pin 16 of J2) on the RF PCB.
3) Adjust L25-L29 on the RF PCB to get the best SINAD (over 12 dB
SINAD) when SG output is .06uV.
4) Check using 0.35 uV SG input level for 12dB SINAD minimum per spec.
5.3.7 Weather Alert Decoder Adjustment
5.3.7 Weather Alert Decoder Adjustment
5.3.7 Weather Alert Decoder Adjustment
5.3.7 Weather Alert Decoder Adjustment
5.3.7 Weather Alert Decoder Adjustment
1) Connect the SG to the antenna connector.
2) Set up CH WX1 (162.550 MHz) with 1050 Hz +/-3 kHz deviation.
3) Connect the DC Volt Meter to TP2 on the RF PCB.
4) With VR5 fully clockwise, turn counter-clockwise and note its position
when TP2 voltage changes from 5.0 VDC to 0 VDC.
Continue to turn VR5 CCW until TP2 voltage changes from 0 VDC to 5
VDC.
The final setting for VR5 is for 0 VDC between these two points.
3) After alignment, check at Channel 60 and Weather Channel 0 for 12dB
SINAD minimum with 0.35 uV output from SG.
Summary of Contents for RAY230E
Page 1: ...RAY230 RAY230E Fixed Mount VHF Radio Owner s Handbook Document number R49006_1 Date May 2001...
Page 2: ......
Page 7: ...vii Declaration of Conformity goes here...
Page 102: ...3 80 Operations...
Page 138: ...6 16 Parts List and Drawings...
Page 150: ...7 12 Appendix...