BBARC 146.820 Site Alignment

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						Serving the Big Bend area of west Texas.

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BBARC 146.820 Christmans Mountain Site Alignment
Vertex VXR-5000 Repeater
Kenwood TK-8150 Link Radio:

VHF LOCAL REPEATER RECEIVER SENSITIVITY:
1. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 146.820 MHZ.
2. Inject:
  1. Into Local Repeater input N connector.
  2. 146.220 MHZ.
  3. 1.0 KHZ audio at 3.5 KHZ deviation
  4. 146.2 HZ CTCSS at 0.5 KHZ deviation.
3. Adjust:
  1. Receiver coils.
4. Verify:
  1. -115 engage and -120 drop out.
VHF LOCAL REPEATER RECEIVE AUDIO TO CONTROLLER:
1. Inject:
  1. Into Local Repeater Duplexer output UHF connector.
  2. 146.220.
  3. 1.0 KHZ audio at 3.5 KHZ deviation
  4. 146.2 HZ CTCSS at 0.5 KHZ deviation.
2. Monitor:
  1. RMS volts AC.
  2. RLC-1 Controller "MI" test point.
3. Adjust:
  1. RLC-1 Controller "MAIN REC" pot.
4. Verify:
  1. 1.414 Vrms.
VHF LOCAL REPEATER RECEIVE AUDIO TO UHF LINK RADIO TRANSMITTER:
1. Monitor:
  1. Link Radio antenna connector.
  2. 443.000 MHZ.
  3. RLC-1 Controller "LO" test point.
2. Inject:
  1. Into Local Repeater Duplexer output UHF connector.
  2. 146.220.
  3. 1.0 KHZ audio at 3.5 KHZ deviation
  4. 146.2 HZ CTCSS at 0.5 KHZ deviation.
3. Adjust:
  1. RLC-1 Controller "LINK TRANS" pot.
4. Verify:
  1. 4.2 KHZ deviation.
VHF LOCAL REPEATER TRANSMITTER POWER:
1. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 146.820 MHZ.
2. Inject:
  1. Into Local Repeater input N connector.
  2. 146.220 MHZ. full quieting.
  3. 1.0 KHZ audio at 3.5 KHZ deviation
  4. 146.2 HZ CTCSS at 0.5 KHZ deviation.
3. Adjust:
  1. Software pot for High and Low power.
4. Verify:
  1. ~15 watts.
VHF LOCAL REPEATER TRANSMITTER MAXIMUM DEVIATION:
1. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 146.820 MHZ.
2. Inject:
  1. Into Local Repeater input N connector.
  2. 146.220 MHZ.
  3. 1.0 KHZ audio at 7.0 KHZ deviation
  4. 146.2 HZ CTCSS at 0.5 KHZ deviation.
3. Adjust:
  1. VR2002 (Max Dev).
4. Verify:
  1. ~6.0 KHZ deviation maximum.
5. Finish:
  1. Remove injected signal.
VHF LOCAL REPEATER TRANSMITTER CTCSS DEVIATION:
1. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 146.820 MHZ.
2. Inject:
  1. PTT using the blue microswitch inside of the repeater.
3. Adjust:
  1. VR2003 (Tone Dev).
4. Verify:
  1. 0.5 KHZ of 146.2 HZ deviation.
VHF LOCAL REPEATER TRANSMITTER DEVIATION:
1. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 146.820 MHZ.
2. Inject:
  1. Into Local Repeater input N connector.
  2. 146.220 MHZ. full quieting.
  3. 1.0 KHZ audio at 3.5 KHZ deviation.
  4. 146.2 HZ CTCSS at 0.5 KHZ deviation.
3. Adjust:
  1. RLC-1 Controller "MAIN TRANS" pot.
4. Verify:
  1. 4.2 KHZ of deviation.
VHF DUPLEXER OPERATION:
1. Monitor:
  1. Local Repeater Duplexer output UHF connector.
  2. 146.820 MHZ.
2. Inject:
  1. Into Local Repeater Duplexer output UHF connector.
  2. 146.220.
  3. 1.0 KHZ audio at 3.5 KHZ deviation
  4. 146.2 HZ CTCSS at 0.5 KHZ deviation.
3. Verify:
  1. -___ DBM engage, -___ DBM release.
  2. __ watts output.
  3. No desense.
UHF LINK RADIO RECEIVER:
1. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 146.820 MHZ.
2. Inject:
  1. Into Link Radio antenna connector.
  2. 448.000 MHZ.
  3. 1.0 KHZ audio at 3.5 KHZ deviation
  4. 146.2 HZ CTCSS at 0.5 KHZ deviation.
3. Adjust:
  1. Whatever you can.
4. Verify:
  1. -119 engage and -121 drop out.
5. Monitor:
  1. RMS volts AC.
  2. RLC-1 Controller "LI" test point.
6. Adjust:
  1. RLC-1 Controller "LINK REC" pot.
7. Verify:
  1. 1.414 VAC.
8. Monitor:
  1. RLC-1 Controller "MO" test point.
9. Adjust:
  1. RLC-1 Controller "MAIN TRANS." pot.
10. Verify:
  1. ____ VAC.
11. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 146.820 MHZ.
12. Verify:
  1. 4.2 KHZ deviation.
UHF LINK RADIO TRANSMITTER:
1. Monitor:
  1. Link Radio antenna connector.
  2. 443.000 MHZ.
2. Inject:
  1. Into Local Repeater receiver input N connector.
  2. 146.220 MHZ.
  3. 1.0 KHZ audio at 3.5 KHZ deviation.
  4. 146.2 HZ CTCSS at 0.5 KHZ deviation.
3. Adjust:
  1. Whatever you can.
4. Verify:
  1. ~12 watts.
Go have a beer.


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