Fm Operation - Icom IC-735 Instruction Manual

SET
RF
10 25 50 100
SWR
.52
3
3 5 7 9 +20dB +60dB
ALC
(2) AM TRANSMITTING
ALC INDICATION
If the RF POWER CONTROL is not at the
maximum position, first transmit using the FM
mode. Remember the RF indication on the
meter, then adjust the CARRIER POWER
CONTROL for 40% of this RF meter indication.
6 - 5 - 4 FM OPERATION
(1) FM RECEIVING
(2) FM TRANSMITTING
(3) FM REPEATER OPERATION
Transmitting an AM signal is essentially the same as for SSB trans-
mission.
1. Push the METER SWITCH to select the PO position (OUT).
2. Turn the transmitter ON by using either the XMIT SWITCH or
the PTT SWITCH on the microphone.
3. Adjust the carrier level for a 40% of full scale reading using the
RF scale and the CARRIER LEVEL CONTROL located on the
rear panel of the IC-735 when the RF POWER CONTROL is at
the maximum position.
Alternately, adjust the CARRIER
LEVEL CONTROL for a carrier output power of 40 watts. See
page 12 for the location of the CARRIER LEVEL CONTROL.
4. Push the METER SWITCH to select the ALC position (IN).
5. Adjust the MIC GAIN CONTROL for a 1/4 to 1/3 reading in the
ALC zone while speaking into the microphone with a normal voice.
NOTE:
The speech compressor (COMP SWITCH) is functional
and can be used on AM.
1. Push the FM MODE SELECT SWITCH to place the transceiver
in the FM mode.
2. Tune in an FM signal with the TUNING CONTROL using the
meter to peak the signal. Tune for the clearest audio.
3. Set the other controls in the same way as for SSB reception.
Transmitting an FM signal is essentially the same as for SSB trans-
mission.
1. Set the MIC GAIN CONTROL to the center position.
2. Turn the transmitter ON by using either the XMIT SWITCH or
the PTT SWITCH on the microphone.
3. Speak into the microphone in a normal voice. The meter needle
indicates the carrier power when the METER SWITCH is in the
PO position (OUT), however the meter does not move in time
with the voice modulation in this mode.
NOTE:
Most countries only allow FM operation on 28MHz or
higher.
An 88.5Hz TONE ENCODER is often required to access HF FM
repeaters. The IC-735 is not equipped with an encoder, but the
UT-30 88.5Hz TONE ENCODER is available as an accessory.
Install the encoder in the location shown in the photo on page 43.
Connect the 3 pin connector from the encoder to the MAIN unit
J23 labelled "TONE".
When operating through repeaters, input both the transmit and
receive frequencies to VFO A and VFO B. The 88.5MHz tone
transmits when the FM MODE SWITCH is pushed while transmitting.
The tone is transmitted only while pushing the FM MODE SWITCH.