Icom IC-7600, Instruction Manual, Page: 51 / 196

4
42
RECEIVE AND TRANSMIT
3
4
■
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 signal
and you want to use CW-R to reduce the interference.
➥
During the CW mode, push
[CW] to select the CW
or 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 from 300 to 900 Hz.
The filter set screen graphically displays the CW
pitch operations. (See at right.)
➥
Hold down [FILTER] for 1 second 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 (“
” appears), or in 25 Hz
steps when the selected IF filter passband width is
above 600Hz (“
” disappears).
• Push
[EXIT/SET] or hold down [FILTER] for
1 second to return to the previous screen.
D CW sidetone function
When the transceiver is in receive (and the break-in
function is OFF— p. 93) you can listen to the CW
sidetone 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 the level set
mode. (p. 130)
q
Push [SET] (F-6), then push [LEVEL] (F-1) to
select the level set mode.
w
Push [ Y ] (F-1) or [ Z ] (F-2) to select the “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 the display set mode.
Matching the frequency of a transmitted and
received signal is called “Zero beat.”
Main dial
F-1 F-2 F-6 EXIT/SET
SET LEVEL /
CW pitch frequency (Example: 700 Hz)
• Filter set screen
Lower pitch
Higher pitch
[CW PITCH]
Push
BFO
CW-R mode (USB side)
BFO
Desired signal
CW mode (LSB side)
Interference Desired signal Interference