There is an Update for INI-File of the IC-9700:
http://www.hb9ryz.ch/sat/index.html
http://www.hb9ryz.ch/downloads/ic-9700-data-rit.ini
Now the RIT of the IC-9700 works fine with SDR-Console. May be helpful in CW operation when the QSO partners are not tranceive.
73 Harald, DL3HM
Based on the assumption that you are using SDR Console you must use a cw side tone generator which produces a pure sine wave. This may be a shortwave trx oder https://www.htc.ch/index.php/de/morsen-lernen/hqx-morse.
Inject the side tone via a pysical audio line or via https://vac.muzychenko.net/en/ into SDR Console in USB mode. The transmit frequency must be corrected by the side tone frequency.
73 Harald, DL3HM
@OH1NHM
The 850pf goes to the pad of the smd crystal which ist is connected to the RT320. 50 ohm goes to one of the GND pad's.
I have seen some reports that these parts are not necessary.
73 DL3HM
I also use the Diavolo-Twin-LNB. Fits nicely in the duo feed from https://uhf-satcom.com/blog/patch_antenna.
For desoldering the smd XO it is not necessary to demount the pcb from the casing. Hot air station 858D+ with 470°C and fan 6 works too. I have made 2 LNB's this way without problems.
On the signal pad of the smd XO I have used 820pF. On ground pad I have placed 50 ohms in parallel. I use a Leo Bodnar dual GPSDO with lowest singal strength at 25 MHz. The other GPSDO port feeds a pluto sdr at 40 MHz.
The lid of the lnb casing easely cuts the red wire in the picture. This happend to me more than once. Keep the red cable away from the RT320 an its singal traces. This could cause RX interference.
73 Harald, DL3HM
Basically it should be possible to use anti-drift.py with SDR# and the following CAT-Control-Plugin:
https://www.rtl-sdr.com/calico…t-control-plugin-for-sdr/
https://tagloomis.com/calicocat/
I do not know, if it is possible to control two independent virtual receivers using this plugin. This functionality is necessary for anti-drift.py
73 Harald, DL3HM
It was already discussed in this forum to use the beacons at the NB transponder to do a software correction of the LNB drift. Here is my implementation of this principle:
https://www.dl3hm.de/eshail_antidrift.html
https://www.dl3hm.de/eshail_antidrift/anti-drift.py
I use an SDRplay and SDRuno in conjunction with this Python script. For my purposes the drift correction works satisfactory. I can hear CW signals without tweaking on the frequency control. The system load is astonishingly low (< 1%),
Unfortunately this script does not work with SDR Console V3, because this program does not support independent CAT control of more than one virtual receivier.
73 Harald, DL3HM
