UNIDEN 2020
Sid 4 (26)
RECEIVER ALIGNMENT
1.
ALIGNMENT PREPARATIONS
1-1.
Set controls and switches on the front panel as indicated
below:
(
1
) FUNCTION SWITCH
INT.
(
2
) HTR SWITCH
OFF
(
3
) STANDBY SWITCH
PTT
(
4
) R.I.T SWITCH
OFF
(
5
) N.B. SWITCH
OFF
(
6
) AGC SWITCH
FAST
(
7
) MODE SWITCH
USB
(
8
) RF GAIN SWITCH
Fully Clockwise
(
9
) AG GAIN CONTROLL
Center position.
(
10
) SEGMENT SWITCH
0/500 KHz
(
11
) RF. ATT. CONTROL
Fully Clockwise
(
12
) OTHER CONTROLS & SWITCHES
Option
1-2.
Set rera panel switch and jack as indicated below:
(
1
) RF POWER AMP SWITCH
Off
(
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.
Summary of Contents for 2020
Page 21: ...UNIDEN 2020 Sid 24 26 PLL Unit PC 086 Operation Unit PC 085...
Page 22: ...UNIDEN 2020 Sid 21 26 1 E 1 F 1 G 1 H 1 H...
Page 23: ...UNIDEN 2020 Sid 22 26 5 uS DIV 0 1 uS DIV 0 1 mS DIV 5 uS DIV 0 1 mS DIV 1 I 1 I 1 J 1 J 1 K...
Page 25: ...UNIDEN 2020 Sid 25 26...
Page 26: ...UNIDEN 2020 Sid 26 26...