Kenwood TS-930S Instruction Manual page 13

@ Min (memory write} switch
'Use this to memorize a frequency into a selected channel.
@ MR (memory recall) switch
Use this switch to recall a memorized frequency.
INOISE BLANKERSI
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@ NB 1 (noise blanker 1) switch (R)
The noise blanker suppresses impulse noises such as
automotive ignition noise, and permits otherwise
unreadable weak signals to be received. The NB LEVEL
control'{25) varies the operating level of the noise blanker.
@) NB LEVEL contro! (R)
This sets the noise blanker operating level. Use only the
minimum level necessary, according to operating condi-
tions and noises. Excessive N.B. level will cause distortion
of clipping.
@ NB 2 (noise blanker 2} switch (R)
Tum on NB 2 if "woodpecker" radar pulse noise is the
source of interference. Note that when NB 2 operates,
signal blanking time is longer than during NB 1 operation.
The blanking "'hole'" will be apparent on the signal. This is
not a symptom of trouble. The NB 2 switch actually
operates both NB 1 and NB 2 simultaneously. It is recom-
mended that you tum this switch OFF when there is no
"woodpecker" noise.
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@ AIT switch (A)
This controis the Receiver Incremental Tuning (RIT) circuit.
When this switch is on, the RIT indicator (13) lights.
@ RIT control {R)
This permits independently varying the receive from the
transmit frequency, up to +/—9.9 kHz, when the RIT is
on. The RIT frequency is independently displayed to the
100 Hz order.
@ RIT-CLEAR switch (RI
This resets the RIT frequency to zero offset.
[NOTCH filter]
@® NOTCH switch (R)
This switch controls the NOTCH circuit and indicator.
@) NOTCH contro! (R}
Turn the NOTCH switch ON to activate the Notch filter.
Adjust the notch frequency to null beat (carrier interfer-
ence) signals,
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