Kenwood TS-790A Instruction Manual page 33

PWN
4-3-5. Speech Processor
The Speech Processor is used when signals from your
station are weak at the distant station.
Notes: - a
1. Intelligibility is normally reduced when the speech
processor is used.
2. This function is not useful in the FM mode.
Speak into the microphone and adjust the MIC gain
control so that the meter deflection does not exceed
the ALC zone on voice peaks.
PROC ALCa
MIC —3— RF PWR
4-3-6. VOX (Voice Operated Switch)
Switching between transmit and receive can be voice
controlled in the SSB, FM and AM modes by using the
optional VOX-4 unit. The operators manual supplied
with the VOX-4 contains instructions for its use. The
processor should not be used when the VOX-4 is ON.
When operating in the CW mode the VOX GAIN on
the VOX-4 should be adjusted for minimum (OFF),
since voice inputs would tend to cause the radio to
transmit.
4-3-7. Split Frequency Operation
Allows the use of one VFO for transmit, and the other
for receive (Split Frequency operation).
For example:
VFO A is the active VFO, and VFO B is the inactive
VFO. Depressing the SPLIT key will cause the trans-
ceiver to receive on VFO A and transmit on VFO B.
The mode of reception and transmission will follow
the mode contained in the appropriate VFO memory.
It is possible to work crass band, cross mode if
desired.
To avoid confusion during contest, or pile-up opera-
tions we recommend using VFO A for receive and VFO
B for transmit.
4-3-8. Duplex Operation
Pushing the PTT switch on the microphone allows the
simultaneous reception in the SUB band frequency
and sending in a MAIN band frequency.
Note: : - —
With certain relationship between the sending and
receiving frequencies, the receiver sensitivity may be
suppressed.
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