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21
5 PRE-OPERATION
refer to this section while you are receiving.
a
TRANSMIT
COMP
MONI
TUNER
AGC
SWITCH (p. 31)
- OFF position:
Used when receiving a very weak signal.
- FAST position:
Normally
used when
receiving a signal in CW and
RTTY modes.
- SLOW position:
Normally used when receiving a signal in SSB or AM
modes.
VOX DELAY
FULL BK-IN
: GAIN
-9-R
PREAMP/ATTENUATOR
SWITCH
[PRE] position:
Use when
receiving weak signals.
Set the switch to
the
[PRE]
position,
the
built-in
preamp
(approx.
10 dB) is activated to improve the S/N ratio and
sensitivity.
Especially useful during DX operation.
{10dB] [20dB] [30dB] positions:
Used when the received sound from the speaker is dis-
torted by very strong signals.
Set the switch to these
positions to activate the 10, 20, or 30 dB attenuator.
RX
TONE
CONTROL
Changes the audio output quality from the speaker.
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Do you have a question about the IC -765 and is the answer not in the manual?
Questions and answers
how to adjust the transmit bandwidth
To adjust the transmit bandwidth on the Icom IC-765, you can select between LSB and USB modes depending on the frequency band:
- USB is automatically selected on bands above 10 MHz.
- LSB is automatically selected on bands below 7 MHz.
- Push the [SSB] button again to switch between USB and LSB.
The SSB selectivity (bandwidth) is fixed at 2.2 kHz at –6 dB. There is no direct control to manually change the transmit bandwidth beyond selecting USB or LSB.
This answer is automatically generated