Software LNB drift correction

Nice work, the software solution is getting better and better...

vy73 DB8TF

dl3hm Thanks for the perfect desription Harald

A first experimental "ready-to-use" solution with software drift correction for Raspberry Pi you can find here: SAT Controller SDR Nano

dl3hm

Dear Mr. Haradl,

Congratulations for your very good work.

I edit a little bit your script to work with SDR Console V2.3.

Basically using one COM Port to Edit VFO A and VFO B, with CAT Command FA and FB.

https://github.com/PR8KW/ESHAIL_AntiDrift

HOT LNB TEST

COLD LNB TEST

Not working on SDR CONSOLE V3.0.5, CAT Command bug.

I am not a programmed, so any help for improvement are welcome.

73 de Gustavo - PR8KW

Tipp: If you want to read CW SIGNS "only" with unmodified LNB you can use HDSDR software which has a funktional AFC Mode (not available for SSB )..heard this in a qso 30 Minutes before.

Actual figured out and it works

Found the same function = CW AFC = in SDRuno Software. But there is a slow drift so i think i must read in the maual.

dl3hm

Hi Dr. Harald,

For the moment use one PLL LNB from local market called Greatek PLL USO7104AX.

But I don't have to much drift, normally more on winds, or rain, or sun rise.

But QTH on northeast Brazil near Equator line, like no temperature variation.

But anyway for SSB QSO need to correct vfo from time to time, thanks for your script, was very helpful.

Tks and 73,

Gustavo Schwartz - PR8KW

Quote from dl3hm

PR8KW

Great!

I should have tested SDR Console V2.3 first before switiching to SDRuno.

In your "Hot LNB Test" the correction values are lower than with my LNB. What LNB do you use? I think I have picked an LNB which is not so optimal for QO100.

73 Harald, DL3HM

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dl3hm

Thanks Harald!.

Here also working with your script.Octagon OSLO single LNB , RSP1A SDR and SDRUno. Works perfect!!.SDR Console would be also a great added value.

I can forget tweaking manually drift now with your script for most QSO,s in SSB&CW.

73,s

Antonio EA1IW

dl3hm PR8KW Great work, thanks!!! Ist it possible to use this scripts with sdr sharp, especially with the spyserver? My setup is:

remotesite: Antenna - RX (airspy mini) - spyserver - internetconnection

at home: listening/control via sdrsharp over the internet.

It would be great to do the drift correction with sdr# or the spyserver.

Andreas, DL5MGD

dl3hm  PR8KW

Hello Harald, hello Gustavo,
thanks for this great script. I did minor changes so it can be used with sdrsharp and spyserver in a remote controlled setup. Attached is a short description and the minimally modified script

73 Andreas, DL5MGD

TNX Harald and Gustavo, nice job and clever solution.

I am testing script with SDR console 2.3 build 3223. It works perfect. You are a good programmers !! I was thinking about modification of my LNB, now it is not need.

Many many thanks de Pavel OK1PHU.

A good news for SDR Console users: https://www.sdr-radio.com/Blog

73 de Pavel OK1PHU

Nice to see that simon keeps the promise he gave me months ago to implement this function

BTW he was the only SDR software programmer who even answered to my emails/answered in forum.

See here:

https://sdr-radio.groups.io/g/…7993?p=Created,,,20,1,0,0

vy73 DB8TF

Looks promising

vy73 DB8TF

now let's hope he can fix the pluto usb driver issues before the release

is there any information when version 3.0.7 will be released ? I do not need the fix for the pluto so a betaversion woul be appreciated

hehe I would take it happily as well, even if it doesn't fix my transmit problem, I'm really curious to see how well the software drift correction works

I have managed to lock my SDR receiver to the BPSK (upper) beacon using LimeSDR and GNU radio. It works quite well, but needs the operator to find the beacon first before it will lock. Thereafter it corrects for any temperature drift in the LNB