close encounter between QO-100 and the Moon

DM5RM you use this link to calculate ?

Its a pitty the lunar beacon was switched Off .

Never Heard IT. And the data on the Webpage Shows beacon Off..

Maybe next time..

Got me thinking about the LIFE after oa100..

Benno

Quote from DM5RM

"QRV: always when moon is visible with more than 10 degr

All right, but currently the beacon is not working 100%

http://www.vhf.cz/text-oprava-…ku-dl0shf-v-pasmu-10-ghz/

A bit off topic but can anyone confirm which modulation scheme DL0SHF is currently using? I thought it had changed from QRA64 to Q65-60D but I can't decode either with WSJT-X despite having decent signal levels. I was decoding the QRA64 fine when I tried last year.

73 Chris G4SDG

Hi Chris,

same problem here, despite a strong signal, aboute 13 dB over the noise, I was unable to decode it in Q65-D mode.

Using WSJT-X v 2.4.0.rc4 and SDRConsole 3.27 without filter or agc, in USB or Wide-USB mode.

73 Rocco IK8XLD

Hello Rocco,

Thanks for the report. I was assuming that it was operator error at my end but perhaps not if you're having no success either. I'm using WSJT-X v 2.4.0.rc4 and SDRConsole 3.26 with Doppler tracking enabled. The FunCube dongle isn't GPS locked but it received the QRA64 alright last year.

What size antenna are you using?

73 Chris G4SDG

Ciao Chris,

la mia configurazione rx è la seguente:

Parabola offset da 1,8 metri (potete vedere alcune immagini sulla mia pagina QRZ http://www.qrz.com/db/ik8xld

Lnb byllseye tcxo

SDR Airpy mini

Sdrconsole 3.27

La scorsa notte ho provato di nuovo a decodificare il beacon senza successo, dopo aver reinstallato il cavo virtuale e il software wsjt-x.

Un'ultima nota: intorno alle 22z il faro è stato spento.

73 Rocco IK8XLD

Well, there were reports here in the forum, DL0SHF is not operational due to a broken gearbox or motor. Did they fix it?

73, Martin

Hi Martin,

I think so, it was active during the last EME contest, last WE

73 Rocco

Interesting setup you have there there Rocco and a good signal in the recording. I need to do some more checks on my 1.5m dish because the received signal really isn't as good as it should be but it should certainly be good enough to decode QRA64 or Q65.

Nice to see your words about Dom I8CVS on your website. Looking back through my log book he was my third contact on AO40 nearly 20 years ago. The antenna I was using then was the same one I'm using for 10GHz EME now!

73 Chris G4SDG

Hi,

I have an excellent pass at Fri 7/5 @ 7:13 UTC (10:13 Local).

I will try to receive it using a 90 cm dish, a Octagon twin LNB with GPSDO to a Pluto with GPSDO. A GNURadio flowchart will be used to capture also IQ data for future decode of the signal. Now I try to write a Python script to calculate Doppler.

Hi,

Two screenshots from receiving DL0SHF.

Hi,

Complete video : Link

Hi,

Finally decoded the signal !!!

Update: the best reception decoded is -11 !!!

27/4/2022 7:Min UTC

Min: 36 Az: -3.1 Doppler: 1433 Hz Distance : 761926 Km Time: 2.542 sec

Min: 37 Az: -2.7 Doppler: 1344 Hz Distance : 761924 Km Time: 2.542 sec

Min: 38 Az: -2.4 Doppler: 1255 Hz Distance : 761922 Km Time: 2.541 sec

Min: 39 Az: -2.0 Doppler: 1166 Hz Distance : 761919 Km Time: 2.541 sec

Min: 40 Az: -1.7 Doppler: 1077 Hz Distance : 761918 Km Time: 2.541 sec

Min: 41 Az: -1.3 Doppler: 988 Hz Distance : 761916 Km Time: 2.541 sec

Min: 42 Az: -1.0 Doppler: 899 Hz Distance : 761914 Km Time: 2.541 sec

Min: 43 Az: -0.6 Doppler: 810 Hz Distance : 761913 Km Time: 2.541 sec

Min: 44 Az: -0.3 Doppler: 720 Hz Distance : 761911 Km Time: 2.541 sec

Min: 45 Az: 0.1 Doppler: 631 Hz Distance : 761910 Km Time: 2.541 sec

Min: 46 Az: 0.4 Doppler: 542 Hz Distance : 761909 Km Time: 2.541 sec

Min: 47 Az: 0.8 Doppler: 452 Hz Distance : 761908 Km Time: 2.541 sec

Min: 48 Az: 1.1 Doppler: 363 Hz Distance : 761908 Km Time: 2.541 sec

Min: 49 Az: 1.4 Doppler: 273 Hz Distance : 761907 Km Time: 2.541 sec

Min: 50 Az: 1.8 Doppler: 184 Hz Distance : 761907 Km Time: 2.541 sec

Min: 51 Az: 2.1 Doppler: 94 Hz Distance : 761906 Km Time: 2.541 sec

Min: 52 Az: 2.5 Doppler: 4 Hz Distance : 761906 Km Time: 2.541 sec

Min: 53 Az: 2.8 Doppler: -84 Hz Distance : 761906 Km Time: 2.541 sec

Min: 54 Az: 3.2 Doppler: -174 Hz Distance : 761907 Km Time: 2.541 sec

I will try using homebrew 10 GHz transverter in Rx only.

A RTL stick will be used for Rx DL0SHF.