Receive And Transmit; Functions For Cw Operation; D About Cw Reverse Mode; D About Cw Pitch Control - Icom IC-7600 Instruction Manual

Functions for CW operation

D About CW reverse mode

CW-R (CW Reverse) mode uses the opposite side
band to receive CW signals.
Use when interfering signals are near a desired sig-
nal and you want to use CW-R to reduce the interfer-
ence.
During CW mode, push [CW] to select CW and
CW-R mode.

D About CW pitch control

The received CW audio pitch and CW sidetone can
be adjusted to suit your preference (from 300 to
900 Hz; in 5 Hz steps). This does not change the
operating frequency.
Rotate [CW PITCH] to suit your preference.
• Adjustable within 300 to 900 Hz.
The filter set screen graphically displays the CW
pitch operations. (See at right.)
Push and hold [FILTER] for 1 sec. to access the
filter set screen.
• The CW pitch frequency is graphically changed in
5 Hz steps when the selected IF filter passband
width is below 500Hz ("
steps when the selected IF filter passband width is
above 600Hz ("
• Push [EXIT/SET] or push and hold [FILTER] for 1
sec. to return to the previous screen.

D CW sidetone function

When the transceiver is in receive (and the break-in
function is OFF— p. 85) you can listen to the CW sid-
etone without actually transmitting.
This allows you to match your transmit frequency
exactly to another station's by matching the audio
tone. You can also use the CW sidetone (be sure to
turn OFF break-in!) to practice CW sending.
CW sidetone level can be adjusted in level set mode
(p. 122).
q Push [SET] (F-6), then push [LEVEL] (F-1) to
select level set mode.
w Push [Y] (F-1) or [Z] (F-2) to select "Side Tone
Level" item.
e Rotate the main dial to adjust the sidetone level.
• Sidetone level is adjustable within 0 to 100 % in 1%
steps.
r Push [EXIT/SET] to exit display set mode.
Matching the frequency of a transmitted and
received signal is called "Zero beat."
" appears), or in 25 Hz
" disappears).

RECEIVE AND TRANSMIT

BFO
Interference Desired signal
CW mode (LSB ide)
Lower frequency
• Filter set screen
CW pitch frequency (e.g. 700 Hz)
F-1
LEVEL /
Push
BFO
Interference Desired signal
CW-R mode (USB ide)
[CW PITCH]
Higher frequency
Main dial
F-2 F-6 EXIT/SET
SET
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