RF GAIN CONTROL
This control allows you to adjust the basie sensitivity of the receiver section of the transceiver. It is
somewhat like the microphone gain control in that it allows you to compensate for different or
varying operating conditions. Maximum RF Gain or receiver sensitivity is obtained at the maximum
clock л/ise position of this control, and the control should be set to this point for normal operation
and maximum range. For example, when operating at close proximities to other strong signais, it may
be helpful to reduce the RF Gain to avoid overload or distortion or interférence from adjacent
channels.
MODE SWtTCH FOR LSB-USB-AM
AM transmission is amplitude modulation of the radio frequency carrier w ith an audio signal (voice).
The components of the transmitted signal include the carrier and its two sidebands, upper and lower.
For 100% modulation, each sideband contains one-fourth as much power as the carrier. The
information transmitted is in the sidebands.
USB transmission is the transmission of the upper sideband only of a single sideband signal. In single
sideband transmission, the carrier and one sideband are removed from the transmitted signal. Thus,
only one sideband is transmitted.
LSB transmission is the transmission o f the lower sideband, only. Rotate the mode selector switch to
the desired mode.
MODE FUNCTION LIGHT
The TS-340 DX has a dynamie 3-way mode function light. In the upper sideband mode the light will
be green. The lower sideband mode w ill show red. The AM mode will show both red and green.
CLARIFIER
The clarifier is an electronic tuning circuit which allows you to shift the frequency of your receiver.
In SSB operation, even small différences in frequencies between stations can cause poor réception. In
effect, the clarifier electrically fine tunes the station being received. In AM operation, this acts as a
fine tuning circuit.
T X INDICATOR
Your TS-340 DX is equipped with a LED (light emitting diode) transmit indicator lîght on the fro n t
panel With the PTT switch on the mike depressed, the LED will light indicating you are in the
transmit mode.
HIGR/LOW BAND SWITCH
For ordinary 40 channel operation, set the switch position to ''L o w ''. In the "H ig h " position, your
TS-340 DX opérâtes in the frequency range of 27.665 — 28.105MHz (High band 40 channels; 1
through 40).
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