Alignment For 450Khz Trap - Sangean ATS-818 Service Manual

Pll synthesized world band receiver

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(12) ALIGNMENT FOR 450kHz TRAP

a. Required Instruments.

AM Signal Generator

Loop Antenna

SSVM

b. Alignment Procedure

Mode { | Adjustment

Procedure

(1) Turn the radio ON.

(2) Set the bandwidth switch to WIDE and RF GAIN VR ro MAX Position.

(3) Tune the radio band frequency to 450kHz.

and feed a stronger signal to the MW/LW ferrite bar antenna.

(5) Tune the generator frequency to 450kHz and set modulation depth to 30%~50%

(6) Connect a SSVM to speaker (TP 14).

(7) Adjust T8 to have a min. audio output

cc. Instrument Connection

AM 4 Generator

= Antenna

The radio is located

perpendicularly to

the Loop Antenna

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