Kenwood TS-930S Instruction Manual page 20

Simultaneous Use of the RF GAIN CONTROL and AGC
Switch
If a strong signal (such as a local station) appears in the
vicinity of the intended receive signal, the S meter may
show unusual deflection due to the AGC voltage developed
from the strong disturbing signal. If this occurs, turn the RF
GAIN down so the meter pointer remains at about the
original deflection peak and turn the AGC switch OFF. This
will eliminate the unwanted AGC voltage and permit clear
reception.
4 RIT
First, cancel any previously programmed offset using the
Clear key (29), then turn the RIT switch ON.
The RIT control allows shifting the receive frequency
+9.9 kHz, displayed to the 100 Hz place, without chang-
ing the transmit frequency.
With the RIT switch ON, the RIT indicator will light, and
receive frequency can be adjusted by using the RIT control.
NOTE:
When the RIT is ON, transmit frequency is different from the
receive frequency. For normal operation, leave the RIT switch
OFF. It should be turned ON only when needed.
To reset the RIT, depress the RIT-CLEAR switch.
§ SSB SLOPE TUNE control
During SSB reception, this permits shifting the apparent IF
bandwidth to reject interference.
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Fig. 5-2 SSB SLOPE TUNE (HIGH CUT, LSB) control
20
¢ SSB SLOPE TUNE HIGH CUT control:
Adjust the HIGH CUT control counterclockwise, and in-
terference of higher frequency than the desired signal
will be rejected. In the resulting AF signal, the high-
frequency components are cut.
e SSB SLOPE TUNE LOW CUT control:
Turn the LOW CUT control clockwise and interference
of lower frequency than the desired signal will be re-
jected. in the resulting AF signal, the low-frequency
components are cut. Maximum bandwidth occurs at
low cut full counterclockwise, and high cut full
clockwise.
6 CW VBT (Variable Bandwidth Tuning) control
This control is used to eliminate radio interference by
changing the IF passband-width. Use this control in con-
junction with the NOTCH filter to obtain optimum results.
455-kHz filter
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CW VBT CW VBT
NARROW NORMAL NARROW NORMAL.
Fig. 5-3 CW VBT control
By setting the CW VBT control to the NORMAL position,
maximum passband-width is obtained. The IF filter
passband-width is narrowed as the control is adjusted
counterclockwise, while center frequency remains un-
changed. Fig. 5-3 illustrates operation. The range of
variability depends on the type of optional filter used.
(i) When the filter bandwidth is 2.4 kHz (without an op-
tional filter), the passband-width varies within the
range of 2.4 kHz to 600 Hz.