Icom IC-735 Instruction Manual page 34

(2) SSB TRANSMITTING
1 3
5 7
9 +20dB +60dB
Ak
\ 111 1 ∎ Lmbid
RF
10
25 50 100
%
SWR
142
3
SET
i
ALC
I
RF
MIC
POWER
GAIN
1 I
METER
SPEED
ALC
ELEC KEY
13
0
PO
MANUAL
1. Listen carefully before transmitting to be sure your transmission
does not interfere with any other communications.
2. Push the XMIT SWITCH or the PTT SWITCH to place the trans-
ceiver in the transmit mode.
3. Set the METER SWITCH to the PO position (OUT). Speak into
the microphone in a normal voice and the meter needle will
follow your voice modulation to indicate that the SSB signal is
transmitting.
NOTE:
The "XMIT" indicator appears whenever the IC-735 is
placed in the transmit mode, however an RF signal is
only transmitted when the operating frequency selected
is within an Amateur band.
4. Set the METER SWITCH to the ALC position (IN), and adjust
the MIC GAIN for a meter reading within the ALC zone on voice
peaks.
(3) VOX OPERATION
Set the VOX GAIN, VOX DELAY and MIC GAIN as shown in the
diagram before beginning.
1. Push the VOX SWITCH to activate the VOX circuit. Leave the
XMIT SWITCH in the receive position (OUT) and do not push
the PTT SWITCH on the microphone.
2. Slide the VOX GAIN CONTROL upwards while speaking into the
microphone. When the T/R switching circuit activates, stop
adjusting the VOX GAIN CONTROL. Speak into the micro-
phone in a normal voice for an accurate setting of this control.
3. The VOX DELAY CONTROL varies the amount of delay before
the transceiver returns to the receive mode after your speaking
stops. Slide this control downwards to reduce the time delay.
Set it at the position which allows for short pauses in normal
speech without dropping back to the receive mode.
4. Rotate the ANTI VOX CONTROL on the rear panel clockwise
while receiving a signal until the audio from the speaker does not
activate the VOX circuit. See page 12 for the exact location.
(4) USING THE SPEECH COMPRESSOR
The IC-735 has a low distortion, AF speech compressor circuit
which provides greater talk power by improving the intelligibility of
the transmitted signal over long distances.
1. Push the COMP SWITCH to activate the compressor circuit.
2. The speech compressor is factory set for a value of approximately
10dB. Switch to transmit and adjust the COMP LEVEL CON-
TROL on the rear panel if a different value of compression is
preferred. See page 12 for the exact location of the COMP
LEVEL CONTROL.
NOTE:
The speech compressor should be turned OFF or MIC
GAIN CONTROL carefully set for minimum compression
for all communication other than DX operation for very
natural voice quality.