BBARC 145.230 Site Alignment

						The Big Bend Amateur Radio Club
						Serving the Big Bend area of west Texas.

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BBARC 145.230 Emergency Repeater Alignment:

VHF LOCAL REPEATER RECEIVER SENSITIVITY:
1. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 145.230 MHZ.
2. Inject:
  1. Into Local Repeater receiver input BNC connector.
  2. 144.630 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. -117 engage and -120 drop out.
VHF LOCAL REPEATER TRANSMITTER POWER:
1. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 145.230 MHZ.
2. Inject:
  1. Into Local Repeater receiver input BNC connector.
  2. 144.630 MHZ.
  3. 1.0 KHZ audio at 3.5 KHZ deviation
  4. 146.2 HZ CTCSS at 0.5 KHZ deviation.
3. Adjust:
  1. KPG91D software - PROGRAM - TEST MODE - TX LOW POWER.
  2. Set level to 15 watts (~123 on adjustment scale).
4. Verify:
  1. ~15 watts.
VHF LOCAL REPEATER DUPLEXERS:
1. Monitor:
  1. Duplexer antenna connector.
  2. 145.230 MHZ.
2. Inject:
  1. Into Duplexer antenna connector.
  2. 144.630 MHZ.
  3. 1.0 KHZ audio at 3.5 KHZ deviation.
  4. 146.2 HZ CTCSS at 0.5 KHZ deviation.
3. Adjust:
  1. Duplexers.
4. Verify:
  1. -___ engage and -___ drop out.
  2. __ watts.
VHF LOCAL REPEATER TRANSMITTER QT (CTCSS) DEVIATION:
1. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 145.230 MHZ.
2. Inject:
  1. Nothing.
3. Adjust:
  1. KPG91D software - PROGRAM - TEST MODE - QT DEVIATION (WIDE).
  2. Set level to ~87 for desired output.
4. Verify:
  1. 0.5 KHZ deviation on 145.230 MHZ.
VHF LOCAL REPEATER RECEIVE AUDIO TO CONTROLLER:
1. Monitor:
  1. RMS volts AC.
  2. RLC-1 Controller C9 lead nearest to the DB9 connector.
2. Inject:
  1. Into Local Repeater Duplexer output UHF connector.
  2. 144.630.
  3. 1.0 KHZ audio at 3.5 KHZ deviation
  4. 146.2 HZ CTCSS at 0.5 KHZ deviation.
3. Adjust:
  1. KPG91D software - PROGRAM - TEST MODE - RA LEVEL.
  2. Set level to ~127 for desired output.
4. Verify:
  1. 0.707 VAC.
5. Monitor:
  1. RMS volts AC.
  2. RLC-1 Controller "MI" test point.
6. Adjust:
  1. RLC-1 Controller "MAIN REC" pot (backwards pot).
  2. Set level to desired output.
7. Verify:
  1. 0.707 VAC.
8. Finish:
  1. Exit TEST MODE.
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. 144.630.
  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 (backwards pot).
  2. Set level to desired output.
4. Verify:
  1. 4.2 KHZ deviation.
  2. ~0.614 VAC.
UHF LINK RADIO RECEIVER:
1. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 145.230 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 (backwards pot).
7. Verify:
  1. 0.707 VAC.
8. Monitor:
  1. RLC-1 Controller "MO" test point.
9. Adjust:
  1. RLC-1 Controller "MAIN TRANS." pot (backwards pot).
10. Verify:
  1. 0.3535 VAC.
11. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 144.000 MHZ.
12. Adjust:
  1. KPG91D software - PROGRAM - TEST MODE - TX AUDIO INPUT (TA) VCO A.
  2. TX = ON.
  3. Set level to ~95 for desired output.
13. Verify:
  1. 4.2 KHZ deviation.
14. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 163.000 MHZ.
15. Adjust:
  1. KPG91D software - PROGRAM - TEST MODE - TX AUDIO INPUT (TA) VCO B.
  2. TX = ON.
  3. Set level to ~95 for desired output.
16. Verify:
  1. 4.2 KHZ deviation.
17. Monitor:
  1. Local Repeater transmitter output N connector.
  2. 145.230 MHZ.
18. Adjust:
  1. KPG91D software - PROGRAM - TEST MODE - TX AUDIO INPUT (TA) VCO A.
  2. TX = ON.
  3. Set level to ~95 for desired output.
19. 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 Duplexer output UHF connector.
  2. 144.630 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. ~5 watts with A Key off.
  2. ~20 watts with A key on.
5. Return A key to off position.
Go have a beer.


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