VCO & Osc

Test Equipment
1. Frequency Counter
2. Digital Volt Meter
3. DC Power Supply (13.8V 3A)

1.	Mic: Receive, Channel Selector: Ch1, Delta Tune: Center	Connect frequency counter to pin 4 of IC 1,	CT1	Adjust CT1 to get 10.240 MHz
2	Same as step 1	Connect digital volt meter to pin 7 of IC 1	T106	Adjust T106 to get 1.3V at Ch1 and 2.0V at Ch40
3.	Mic: Transmit, Channel Selector: Ch40	Connect frequency counter to pin 4 of IC 1	RV5	Adjust RV5 to get 10.240 MHz
4.	Same as step 3	Connect frequency counter to the point where CT3 & X2 are connected	CT3	Adjust CT3 to get 10.695 MHz in Tx mode

Test Equipment
1.    RE Power Meter
2.    50 ohm Dummy Load
3.    Oscilloscope
4.    Audio Generator
5.    DC Power Supply (13.8V 3A)
6.    Spectrum Analyzer
7.    RE Attenuator
8.    Frequency Counter
9.    Coupler

Test Equipment Setup
1.    Connect audio generator output terminal to pin 2 of Mic jack and connect pin 3 to ground.
2.    Connect RF power meter to antenna jack.
3.    Connect coupler to RE power meter.
4.    Connect 50 ohm dummy load, oscilloscope and frequency counter to coupler.
5.    Connect power cord to power supply.

Alignment Procedure
1.    Mic: Transmit, Channel Selector: 19
2.    Adjust T108,T109,T1 10,L7,and L11-B for max. power output.
3.    Check output on Ch1 & Ch40, if power is not equal readjust L7, and L11-B.
4.    Adjust RV7 so that output indicator meter is at the 4 watt position.
5.    Check that frequency tolerance is plus or minus 400 Hz, if not go back to steps 1-3.
6.    Remove 50 ohm dummy load from antenna jack.
7.    Connect RF attenuator and spectrum analyzer to antenna jack.
8.    Check that harmonics and spurious are suppressed more than -63dB on all channels with no modulation if it is not within the above range adjust L7, and L11-B (harmonics).
9.    Turn on the audio generator and adjust audio level to obtain 80-100% modulation (3mV). Adjust RV2 to obtain 95% modulation.

Disclaimer: Although the greatest care has been taken while compiling these documents,