1 reception, Reception – Kenwood TS-430S User Manual

Page 9

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SECTION 5. OPERATION

Note: ® denotes transmit mode; (g) denotes receive mode.

WIDE

®J.'ALG<

Centered

REC

® Connect mie

OFF Both CAR and MIC '^Select the mode

fully counterclockwise

® Select band

MAN

Fully counter
clockwise

RF; Fully

clockwise

AF: Fully counter

clockwise

OFF

Fig. 5-1 Initial Control Settings

5.1 RECEPTION

5.1.1. RECEPTION

First connect the antenna, microphone and key. Then, set the

controls and switches referring to Fig. 5-1.

Acertain that the TS-430S is ready for operation, then turn the

POWER switch ON. The meter and digital display will illumin

ate, indicating the transceiver is in operation. The transceiver is

fully solid-state, allowing reception as soon as the POWER

switch is switched ON.

Advance the AF GAIN control clockwise until some receiver

noise is heard from the speaker. Turn the main tuning control

so the desired signal can be heard clearly.

5.1.2. RF ATT SWITCH

The input to the receive RF amplifier is attenuated approxi

mately 20 dB, providing distortion-free reception. This feature

may be used in cases of receiver overload, caused either by a

strong local signal, or during weak signal reception when a

strong adjacent signal may blank the receiver.

5.1.3. NB SWITCH

The TS-430S has a sophisticated noise blanker designed to re

duce ignition-type pulse noise. The noise blanker is particularly

important for mobile operation. When necessary, activate the

noise-blanker by depressing the NB switch ON.

5.1.4. RF GAIN CONTROL (Fig. 5-2)

For normal operation, this control should be turned fully clock

wise for maximum sensitivity. Receive sensitivity is reduced by

turning the control counterclockwise.

Adjust the RF GAIN so the S-meter does not show excessive

deflection. This minimizes noise during reception and allows

the S-meter to indicates signal peak (or a little below that

point). Noise is markedly reduced when signal is absent.

S-meter peak point

AF GAIN -gb- RF GAIN

Signals below
this level are
attenuated

S-meter reading

at partial counter

clockwise position
of RF GAIN control

AF GAIN

RF GAIN

Fig. 5-2 RF GAIN Control Operation