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RECEIVER ALIGNMENT
1.
ALIGNMENT PREPARATIONS
1-1.
Set controls and switches on the front panel as indicated
below:
(1) FUNCTION SWITCH
(2) HTR SWITCH
(3) STANDBY SWITCH
(4) R.I.T SWITCH
(5) N.B. SWITCH
(6) AGC SWITCH
(7) MODE SWITCH
(8) RF GAIN SWITCH
(9) AG GAIN CONTROLL
(10) SEGMENT SWITCH
(11) RF. ATT. CONTROL
(12) OTHER CONTROLS & SWITCHES
1-2.
Set rera panel switch and jack as indicated below:
(1) RF POWER AMP SWITCH
(2) Connect external speaker (4 ohms), or 4 ohm dummy load to the EXT. SP
jack.
1-3.
Set PWR SWITCH to ON after completion of all preparations as mentioned
above.
2.
RX RF UNIT ALIGNMENT
2-1.
Test Equipment Required
(1) Standard Signal Generator (SSG)
(2) AF milli- volt Meter (mV)
2-2.
IF Trap Coil Alignment
(1) Connect SSG output to antenna jack.
(2) Connect mV to speaker or dummy load in parallel.
(3) Set BAND Switch to 7.0, and SEGMENT SWITCH to 0/500.
(4) Turn PRESELECT CONTROL fully counter-clockwise.
(5) Provide 80 dB of 6.187 MHz unmodulated signal from SSG.
(6) Adjust L01 and L207, so as indicate minimum readings on S-Meter or mV.
UNIDEN 2020
Sid 4 (26)
INT.
OFF
PTT
OFF
OFF
FAST
USB
Fully Clockwise
Center position.
0/500 KHz
Fully Clockwise
Option
Off
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