Sangean DT-120 - Manual Tuning; Memory Tuning and Presets

4. ALIGNMENT FOR AM SENSITIVITY
a. Required Instruments
AM Signal Generator
SSVM
b. Alignment Procedure
Mode Adjustment Procedure
(1) Turn on the radio.
(2) Connect a SSVM to the speaker H.P JACK and GND terminals.
(3) Connect an AM signal generator together with standard loop dummy antenna and
feed 30% modulated signal to the AM ferrite bar antenna (ANT1).
(4) Tune the generator frequency to 1404 KHz.
(5) Tune the AM frequency to 1404 KHz and adjust CT1 to have a max reading on SSVM.
(6) Return the generator frequency to 603 KHz.
(7) Tune the AM frequency to 603 KHz and adjust ANT1 to have a max reading on SSVM.
AM
CT1
ANT1
(8) Repeat (4) to (7) as necessary to minimize tracking error.
c. Instrument Connection
ANT1
CT1
60 cm
Loop Antenna
AM Signal Generator
The radio is located
perpendicularly to
the Loop Antenna
GND
DVM
HEAD PHONE JACK O/P
8