Sangean H201 Instrukcja Użytkownika Pobierz pdf (Strona 9)

5. 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 TP8 and TP9 terminals.

(3) Connect an AM signal generator together with standard loop dummy antenna and

feed 30% modulated signal to the AM ferrite bar antenna (L1).

(4) Tune the generator frequency to 1404KHz.

(5) Tune the AM frequency to 1404KHz and adjust TC1 to have a max reading on SSVM.

(6) Return the generator frequency to 603KHz.

(7) Tune the AM frequency to 603KHz and adjust L1 to have a max reading on SSVM.

TC1

(8) Repeat (4) to (7) as necessary to minimize tracking error.

c. Instrument Connection

TC1

60 cm

The radio is located

perpendicularly to

the Loop Antenna

Loop Antenna

AM Signal Generator

TP9

TP8

DVM

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Sangean H201 Instrukcja Użytkownika Strona 9