Kenwood TS-430S - Manual (Page 8)

® RIT switch
This push switch turns the RIT (Receiver Incremental Tun­
ing) circuit ON and OFF. With the switch depressed, the
circuit is activated and the RIT indicator is illuminated, al­
lowing the receive frequency to be shifted by about 1
kFIz independent of the transmit frequency by using the
RIT control. The RIT circuit is turned OFF when the switch
is out.
® NB (Noise Blanker) switch
This switch is used to reduce pulsating type ignition
noises usually emitted from motor vehicles. Power-line,
QRM and atmospheric "white" noise will not operate the
noise blanker.
® RF ATT (Attenuator) switch
With this switch ON, a 20 dB attenuator is inserted in the
antenna circuit, protecting the RF amplifier and mixer from
overload on strong input signals.
© NOTCH switch
This switch controls the NOTCH circuit and indicator.
€) RF GAIN control
This adjusts receiver RF amplifier gain. Turn fully clock­
wise for maximum gain and a correct S-meter reading.
o 0 o
0 AF GAIN (Audio Frequency) control
This control adjusts the receiver audio output level,
lume increases as the control is turned clockwise.
Vo-
0 RIT control
When the RIT switch is ON, this will vary the receive fre­
quency by about 1 kHz. When the control is set to the
"0" center position, there is no frequency shift.
® IF SHIFT control
By using this control, the IF crystal filter center frequency
can be shifted about 1 kHz, allowing adjustment of tone
quality, or eliminating interference from adjacent frequen­
cies. For normal operation, this control should be set to
the center "0" position (at the detent).
0 VOX controls
VOX GAIN: This controls sensitivity of the VOX (Voice
operated Transmit) circuit. Adjust the gain for consistent
key-over by voice, but not back ground noise.
DELAY control: This controls hold time for VOX, or CW
semi-break-in operation. Adjust to hold the transmitter on
between words, at a normal speech, or keying rate.
ANTI-VOX control
This control is used to adjust the VOX system so that it is
not false tripped by sound from the speaker.
0 PG.SCAN (Program scan) control
This adjusts program scan speed.
4.2 REAR PANEL
O ANT (Antenna) connector
This UHF connector should be attached to a suitable an­
tenna for transmitting and receiving. The antenna cable
should be 50-ohm coax, terminated with a PL-259 con­
nector.
0 X. VERTER (transverter) terminal
This 8 Pin DIN connector is used to interface a VHF or
UHF transverter.
See page 23 for pin-outs.
0
GND (Ground) terminal
To prevent electric shock, as well as RFI and BCI, connect
the transceiver to a good earth ground.
O EXT. SP (External speaker) jack
The receiver audio output can be connected through this
jack to an external 4 to 1 6 ohm speaker. The internal
speaker is disconnected when an external speaker is con­
nected.
0
CW key Jack
Using shielded line, connect a key to this 1/4" phone jack
for CW operation. Key open-terminal voltage is approxi­
mately 9V DC.
0 REMOTE connector
This connector is used to interconnect a linear amplifier or
other accessory item.
0 ACC (Accessory) connector
This connector is used to access the automatic antenna
tuner AT-250. Refer to page 22.
0 DC POWER connector
This is used to connect the DC power supply.