Raymarine RAY 210VHF operation manual PLL Adjustment TRANSMITTER/RECEIVER

Figure 5-1 Test Setup

5.3.1Test Equipment

1.DC Power Supply (20V.10A) set at 13.6Vdc

2.RF Power Meter (40W.50 ohm, 150-200MHz)

3.RF signal Generator (50 ohm Output, 150-200MHz)

4.FM Linear Detector (FMLD) or Deviation Monitor 150-200 MHz

5.Frequency Counter

6.Digital Voltmeter

7.Oscilloscope (any oscilloscope accurate for audio signal tracing)

8.SINAD Meter

9.Distortion Meter

10.Toggle Switch (for use as a PTT switch)

11.Coaxial Switch for TX/RX Antenna switching

5.3.2PLL Adjustment (TRANSMITTER/RECEIVER)

1.Connect the power supply (13.6V, 10A) to the power line and the PTT switch to the microphone terminal.

2.Connect digital voltmeter or high impedance tester (positive lead to TP2, negative to ground) and adjust CV2, CV3 on the RF module as shown in Table 5-1.

Sequence	Item	Condition	Adj. point	Adj. volt.
1	TX	transmit CH1 6	CVS	3.5±0.1Vdc
2	RX	receive CH1 6	CV2	2.5±0.1Vdc
3	RX	receive CH WXO	-----	check for 5.5 ±0.3Vdc

Table 5-1

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