Ritron Liberty RLR-460, Руководство пользователя

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3. Using an insulated tuning tool, adjust C203 inside the VCO/synthesizer shield (TX VCO TUNE) for 2.5 +/-0.25 volts at
TP102. The red front panel LED should be illuminated continuously (not blinking) after the probe is removed. Unkey
the transmitter. Replace the foil over the tuning hole.
Transmitter Output Power
1. Key the transmitter and note the output power. Adjust C180 and C183 for maximum output power. If the output
power is too low, adjust R115 (TX POWER) clockwise and readjust C180 and C183. Adjust R115, C180, and C183
until the desired output power is reached. For 2 watts, R115 would typically remain at mid-rotation.
2. Unkey the transmitter.
Transmitter Frequency Trim
1. Key the transmitter and note the frequency of the RF output signal. Adjust
R339 (TX FREQ TRIM) for the correct transmit fre/- 100 Hz.
2. Unkey the transmitter.
Modulation Balance and Deviation
1. An audio generator should be connected to the AUDIO IN (pin 2) and Ground (pin 1) of the modular jack. The audio
frequency should be 500 Hz and the level should be 10 mVrms or lower.