Am Operation - Icom IC-735 Instruction Manual

VOX
GAIN DELAY
VOX
BK-IN
ON
FULL
OFF
SEMI
Wiring for an iambic paddle.
DOT
com
DASH
(4) AUTOMATIC KEYING USING
OPTIONAL ELECTRONIC KEYER
MIC
GAIN
SPEED
ELEC KEY
MANUAL
1.
Push the VOX SWITCH to the ON position (IN).
2. Push the BK-IN SWITCH to the SEMI position (OUT) to select
semi break-in operation, or to the FULL position (IN) to select
full break-in operation.
3. Place the XMIT SWITCH in the receive position (OUT).
4. Begin sending with the CW key and the transmitter will switch
between transmit and receive automatically.
5. Set the transmit release delay time to suit your keying speed by
adjusting the VOX DELAY CONTROL on the rear panel. Rotate
the control clockwise to increase the transmit release delay.
Automatic keying is possible by operating with the optional electro-
nic keyer simply by connecting an iambic paddle to the IC-735.
The purpose of the electronic keyer is to simplify CW keying by
generating dots and dashes with proper length-to-space ratios. The
operator merely controls the number of dots or dashes transmitted
without regard to spaces between the elements, or the timing of the
elements within a character. When used correctly, the resulting CW
is generally easier and more enjoyable to copy at the receiving end.
1. Insert the CW key plug into the KEY JACK on the rear panel of
the IC-735.
2. Push the ELEC-KEY SWITCH to the IN position.
3. Begin sending and adjust the dual function MIC GAIN/SPEED
CONTROL for a suitable keying speed.
4. Push the VOX SWITCH to the ON position (IN).
5. The transmit/receive switching is automatically performed by the
transceiver.
6. The transmit release delay time is set in the same manner as with
semi/full break-in operation.
Push the AM MODE SELECT SWITCH to place the transceiver in
the AM mode. Set the other controls in the same way as for SSB
reception. The Passband Tuning circuit does not function in the
AM mode.
1. Push the POWER SWITCH to the ON position (IN).
2. Select the desired band of operation.
3. Push the AM MODE SWITCH.
4. Tune in an AM signal with the TUNING CONTROL using the
meter to peak the signal.
5. Push the AM FILTER SWITCH to the NARROW position (IN) to
select the narrow receive selectivity. The selectivity used is the
same as for SSB when this narrow position is selected.
The CW WEIGHT CONTROL is installed on the
electronic keyer. See page 23 for the exact location.
6 - 5 - 3 AM OPERATION
(1) AM RECEIVING
NB RF
LEVEL GAIN
AM
CW
NARROW
1 WIDE