Icom IC-7760 Operating Manual page 11

A. Using the IC-7760 with HDSDR
D Operation
1. Set the HDSDR LO frequency so that it is near the frequency you want to monitor.
2. Set the HDSDR Tune frequency to the frequency you want to monitor.
• The demodulated signal is output from the speaker.
TIP: You can hear the audio by changing only the Tune frequency without changing the LO frequency, if the
frequency is within the I/Q range*.
* Sampling Rate range on the IC-7760 I/Q Settings screen. For example, if "Sampling Rate" is set to "1.92 MHz," the I/Q range
is 1.66 MHz wide.
IC-7760 (Controller)
MAIN (RX/TX)
7.010 MHz
Dualwatch: OFF
D Settings
1. Click <SDR-Device> to display the "IC-7760 I/Q
Settings" screen. Set the items as described below.
MAIN/SUB: MAIN
Sync Mode: Only HDSDR sync
2. Click <Soundcard> to confirm that the speaker in
use is selected.
3. Click <Bandwidth> to set "Output Sampling
Rate [Hz]" to "12000."
L "48000" or lower is recommended. When you operate
in the SSB mode, "12000" is adequate.
HDSDR
Sync Mode: Only HDSDR sync
RF deck
I/Q data (MAIN)
TIP: If the audio is not heard from the speaker, click
<Options> and confirm that "Output Channel Mode
for RX" is set to "AF to Both channels (default)."
4. Click <Options>, and then click "Misc Options."
Click "Keep Tune when LO is changed" to remove
the check mark.
5. Click <Options>, and then click "Misc Options."
Click "Tune fixed to 'LO<->Tune Offset'" to remove
the check mark.
D Action
When changing the IC-7760 operating frequency
or the HDSDR LO frequency, the HDSDR Tune
frequency is changed based on the LO frequency.
L The HDSDR LO is synchronized with the IC-7760's
operating frequency.
L You cannot set the HDSDR LO frequency out of the
IC-7760's available frequency range.
3
PC
Speaker