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TX Key Voltage

+5 VDC

TX Handset PTT key Voltage

+6 VDC

TX Keyline Voltage

+12 VDC

NB (Narrow Band) is comprised of

AM/FM plain and FM secure

WB (Wideband) is made up of what?

AM secure and Link 11

L.O.S =

AM/FM

Transmit troubleshooting: If J1 is good +28 vdc =

+5 VDC

Transmit trouble shooting: If J1 is bad >30vdc =

0 VDC

Transmit Troubleshooting: If J11 =0 Vdc

Troubleshoot control protect

Transmit Troubleshooting: If J11>= 9VDC

Troubleshoot Transmit RF Path

RCV and 1st IF are made up of

RCV RF, 1ST L.O., and Bite Disable

Transmit and ALC are made up of

TX RF, +28 VDC, -12 VDC, and Transmit Enable

Control Protect is made up of

+28 VDC, -12 VDC, and Transmit Enable

Bite Tone =

1.2 Khz Square Wave

Audio =

1 Khz Sine Wave

1A1A22 Temperature Controlled Crystal Oscillator (TCXO) Generates What?

2nd L.O, which is always 44.5 MHz