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Raymarine Ray 53 VHF Radio with DSC Manual

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4. ALIGNMENT for RAY53
4.1 PLL Adjustment(Receiver)
1.1 Connect the power supply(13.6V, 10) to the power line.
1.2 Set the radio on CH16(156.800MHz) and set it to Receiver mode.
1.3 Connect the reed terminal of a digital voltmeter or high impedance tester to Test
point(TP2) on RF PCB and set it to DC voltage range.
1.4 Adjust variable coil (T1) in the RF PCB(in the VCO shield case) and set the DC voltage
to 1.3V+/-0.1V.
4.2 PLL Adjustment(Transmitter)
Connect the power supply (13.6V,10A) to the power line.
Connect RF Power Meter(40W 50 ohm, 150-200MHz) to antenna connector.
Set the radio on CH16(156.800MHz) and set it to Transmitter mode.
Connect the reed terminal of a digital voltmeter or high impedance tester to Test point(TP3)
on RF PCB and set it to DC voltage range.
Adjust variable coil (T2) in the RF PCB(in the VCO shield case) and set the DC voltage to
2.0V+/-0.1V.
4.3. Frequency Adjustment(Transmitter)
4.3.1 Connect the power supply (13.6V,10A) to the power line.
4.3.2 Connect RF Power Meter(40W 50 ohm, 150-200MHz) to antenna connector.
Use Coupler in order to divide the transmitter output power and then connect to
frequency counter.
4.3.3 Set the radio on CH16(156.800MHz) and set it to Transmitter mode.
4.3.4 Adjust Trimmer Capacitor(TC1) in the RF PCB(in the VCO shield case) and set the
Frequency Counter to 156800.000Hz+/-100Hz.
4.4 Modulation Adjustment(Transmitter)
4.4.1 Connect the power supply (13.6V,10A) to the power line.
4.4.2 Connect RF Power Meter(40W 50 ohm, 150-200MHz) to antenna connector. Use
Coupler in order to divide the transmitter output power and then connects to FM
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