Icom IC-7760 Advanced Manual page 49

2
ADVANCED OPERATIONS
DPD function
D Turning the DPD function ON or OFF
SSB, SSB-D, AM, and AM-D modes
Turn the DPD function ON or OFF in the operating
band.
1. Select the operating mode. (Example: USB)
2. Push .
FUNCTION
• Opens the FUNCTION screen.
3. Touch [DPD].
L Touching [DPD] turns the DPD function ON or OFF.
NOTE:
• Even if the IC-PW2 is connected, the function can
be turned ON or OFF only by touching [DPD] on the
transceiver's screen.
• The function is fixed to OFF when:
- An unadjusted band for the function is selected.
- An operating mode other than SSB, SSB-D, AM, or
AM-D is selected.
• Even if the adjusted band for the function is selected,
the function is fixed to OFF when the operating
frequency is outside the DPD adjustment frequency
range.
• When the DPD function is turned ON, feedback
correction is performed while monitoring the
transceiver's transmit signal level.
Adjust the microphone gain to a level that does not
exceed the ALC zone of the meter. Otherwise, an
abnormality in the correction value is detected, and the
feedback correction will be stopped.
D About the DPD adjustment frequency
range
The following table shows the DPD adjustment
frequency range for each frequency band. When
changing the DPD adjustment frequency, select it
within the transmission frequency range listed in the
specifications of the exciter's manual.
L Even if the exciter's band edge is changed, the frequency
range is the same as in the table.
L The usable frequency band differs, depending on the
transceiver version.
Frequency Band
1.8 MHz
3.5 MHz
5.3 MHz
7 MHz
10 MHz
14 MHz
18 MHz
21 MHz
24 MHz
28 MHz-1
28 MHz-2
50 MHz-1
50 MHz-2
50 MHz-3
50 MHz-4
2-39
Frequency range
0.030.000 ~ 1.999.999
2.000.000 ~ 3.999.999
4.000.000 ~ 5.799.999
5.800.000 ~ 7.999.999
8.000.000 ~ 11.999.999
12.000.000 ~ 14.999.999
15.000.000 ~ 18.999.999
19.000.000 ~ 21.999.999
22.000.000 ~ 24.999.999
25.000.000 ~ 28.999.999
29.000.000 ~ 29.999.999
30.000.000 ~ 50.999.999
51.000.000 ~ 52.000.000
52.000.001 ~ 52.999.999
53.000.000 ~ 60.000.000