Kenwood TS-930S Instruction Manual page 16

@ MODE switcH
The mode switch selects type of emission, and TUNE.
* TUNE:
Always use this position to make antenna tuning and in-
itial linear amplifier tune-up adjustments. input power to
the final amplifiers is reduced approximately 50% to
protect the final power transistors from possible
damage during adjustments. The key circuit is locked-on
and the key is disabled.
* CW:
Select this position for CW operation. If a key is
connected it must be closed to obtain transmitter out-
put.
* USB:
Used for upper-sideband operation. International
Amateur practice dictates the use of USB on and above
the 10 MHz band.
* LSB:
Selects lower-sideband. International Amateur practice
dicates the use of LSB on and belaw the 7 MHz band.
° FSK:
RTTY operation is available with a terminal unit and
teletypewriter.
* AM:
Select this position for AM operation.
%
RF ATT {RF attenuator) switch {R)
This switch permits insertion of 10, 20, or 30 dB attenu-
ator in the receiver antenna circuit, to protect the RF
amplifier and mixer from excessive input signal distortion.
@ AF GAIN (R)
This adjusts receiver audio level. Volume increases
clockwise.
@ RF GAIN (R}
This adjusts receiver RF amplifier gain. Turn fully clockwise
for maximum gain and @ correct S-meter reading.
@ CW VST CONTROL (RI
The CW VBT (Variable Bandwidth Tuning) continuously ad-
justs the IF Filter bandwidth to eliminate radio interference.
For normal operation, this control may be left fully
clockwise (NORMAL Position). If a narrow fitter is selected
in either the CW, TUNE, FSK, or AM made, the rate of
bandwidth change is reduced for a vernier effect. Normally
the control may remain fully clockwise. Without an op-
tional filter, the circuit is effective only when WIDE is
selected during CW, TUNE, or FSK, or when NAR is
selected during AM operation.
6} SSB SLOPE TUNE control (R}
This permits independently varying the upper and lower IE
bandwidths. High and low audio frequencies may be
simultaneously cut {tuned}. Optimum IF bandwidth may be
selected according to interference conditions. This circuit
operates only in the SSB mode.
@_ D. (DIAL) LOCK switch
This push button electrically locks the frequency of the
working VFO. When this switch is on, the tuned frequency
does not vary when either the tuning knob or BAND switch
is operated. This is convenient when operating on the same
frequency for extended periods, The RIT does operate with
the D. LOCK switch on. The D. LOCK indicator (9) tights to
show operation.
69 CW PITCH control
This permits control of pitch during CW reception. During
transmission, this control simultaneously adjusts CW side
tone frequency to match that of the received signal.
@ CAL (marker) switch (RI
In the ON position, receive frequency can be calibrated at
100 kHz intervals using the built-in oscillator. The marker
is also used when calibrating the internal master reference
oscillator. See Figure 8-3 for location and calibration
instruction.
@ Battery compartment
Three AA type manganese or alkaline dry cells may be in-
stalled for memory backup. Service life of the cells is about
one year, if the transceiver is to be stored, it is recommend-
ed that the dry cells be removed.