Hello,

just a little info.

I tried today to receive the beacon on 10706MHz with a 50cm offset mirror. LNB Octagon OTLSO (1301) with 27MHz GPSDO. S / N about 19.6dB. The 60cm Qffsetspiegel was about 1.5dB S / N better. QTH JO61VC

Moin Juergen,

that means for travelling inside the footprint 60 or 70cm will be sufficient. Unfortunately at prenst have not such a tiny one in my store...

73 Rolf +

Quote from DD4YR

Hm? Which DVB-S beacon on 11.270? Which satellite do you want to receive from?

Robert

Es'Hailsat has beacon active during IOT, but may be are off. now.

Ok shoft test when AMSAT DVB-S2 will be active...

TU Regards.

Ok, but what DVB-S signal do you want to receive? I know only one DVB-S signal on 11.270 from this orbit position, its from BADR 7 on the east MENA beam.

Quote from DD4YR

Ok, but what DVB-S signal do you want to receive? I know only one DVB-S signal on 11.270 from this orbit position, its from BADR 7 on the east MENA beam.

This is test referred to EsHailsat-2.

Hallo...

i made a reference scan in TV BAND with my small 85cm dish now and I can see some peaks in the spectrum from BADR 5,6 and 7 .... thats normal but no TV-Signal lock.

Maybe you can use it for reference.... without Es'Hail 2....

if he is switched on we can compare if there is anything to see "out of footprint" in the TV band in central DL.

I got locked for DVB-S/S2 ...today ...

1 Transponder on BADR7 10970 V (NW AFRICA BEAM), the other locked Transponders are from BADR 4 (BSS and FSS BEAM...).

BTW i receive the 10706 Beacon from ES'Hail2 with linear LNB H-POL at around 38dB S/N @ 65536 FTT bins at 1.024MSps (so BW is 15Hz) with RTL-SDR V3 with SDR#.

This means an S/N @ 1HZ BW of +12dB so at around 50dBHz.

Dani EA4GPZ heas measured on my recording with LINRAD 51.5dBHz.

Maybe some other can also publish there receiving parameters/results.
(DISHSIZE,LNB,S/N with SDR Parameters -SR/FFT)

73 de dg0opk

Quote from ik4idy

This is test referred to EsHailsat-2.

Success. I tuned it on BADR-7 - 10.969000 IO receive this signal Audio is perfect image is not fluid at 100% but this is a step ahead. Thank you so much for your help DG0OPK ! YEs it isn't EsHailSat2 but help me to understand that Minitoiune run.

Hello all

Trying to receive Eshail2 from KM69 with a 60cm offset disk with Octagon PLL and a rtl-sdr receiver.

So far i managed to get something guess..

The two closer peaks around center marker starts on 00 of every hour lasts a few mins as i observe..

I receive this signal both on V and H (H weaker) and dissapears if i move sat or block lnb with my hand

Everything sounds like eshail 2.. Except I couldnt get anything from 11.205 beacon..

Maybe my rtl doesnt go up to 1455 mhz..Not sure..

Does somebody confirm this is eshail2 beacon??

Best Regards..

Oguz

Hello TA2NC,

the picture you posted looks like the lower EH2 EB, maybe a little weak but you seem to be on the right sat.

Vy73 DB8TF

Quote from ta2nc

Hello all

Trying to receive Eshail2 from KM69 with a 60cm offset disk with Octagon PLL and a rtl-sdr receiver.

So far i managed to get something guess..

The two closer peaks around center marker starts on 00 of every hour lasts a few mins as i observe..

I receive this signal both on V and H (H weaker) and dissapears if i move sat or block lnb with my hand

Everything sounds like eshail 2.. Except I couldnt get anything from 11.205 beacon..

Maybe my rtl doesnt go up to 1455 mhz..Not sure..

Does somebody confirm this is eshail2 beacon??

Best Regards..

Oguz

Display More

Yes, this is the right beacon on 10706 MHz. I had the same problem with the 11205 MHz with some RTL. which therefore does not exceed 1000 MHz. With the new RTL2832 "New Gen" (green) everything is coming.

Thank you all.

So next step.. getting a bigger dish + a transverter for 2.4 ghz

73

Why a larger antenna? That's just the bake of EsHail 2 and not the antenna of P4A.

73

Quote from pe1chl

When you see signals but not the expected patterns or only one of the two, you are likely pointed to the wrong satellite. This can easily happen as other satellites used beacons on almost the same frequencies, and are located e.g. at 31.5e and 19.2e.

It is easier when you have a DVB-S(2) receiver as you can verify the satellite you are pointed to by checking the TV programmes you receive.

When you are checking from Europe (i.e. not from the target area of these satellites) you cannot receive most programmes, but e.g. on 11996 MHz Horizontal 27.5MS/s 3/4 FEC you can receive a strong transponder with Arabic versions of news programmes. This is not from Es'hail-2 but from another Arabsat at 26e.

Hi Rob,

Thanks for the detailed answer! I made another effort and realized that I made a mistake: I didn't changed polarization while jumping from the upper to the lower frequency beacon (right now I need to rotate my LNB by hand...:) ) this is why the lower freq beacon's side bands was not showing up (buried in noise). Just right after I rotated the LNB by hand it's magically moved up from noise So I was on the right bird but wrong polarization... (V instead of H).

I've put up an online stream for you guys (perhaps sporadically turns down, an experimental setup, changed my Inmarsat setup to this temporary):
OpenWebRX + RPi 3 + RTL-SDR V3 + Inverto LNB

(edit: the LNB is somewhat modified, was opened once and the plastic cover is broken so the metal part is exposed to air)

http://sniffing.ddns.net:8073/

73,

Zoltan

That sure looks like the correct signal, but it is strange that you have a polarization issue as the signal from the beacon is RHCP (circular polarization).

I do receive it both H and V here. Cannot turn the LNB but I can switch it.

The frequency instability is similar to what I have here, i.e. not as bad as some people write.

Yes, I can confirm that as well. I see here when switching between V and H no measurable difference.

I took 5 minutes a look at Zoltans WEBSDR stream:

Here is the result. Look at the drift in the last 90secs.

If you can work with that ok

vy73

and this is mine..

1) OCTAGON Single LNB OPTIMA, Model: OSLO with PLL, *unmodified*

2) 85cm offset dish from PrimeX with motor

3) Airspy+

4) SDR#

5) Weather: strong winds (the shaking causes wobbling in the plot) and rain, around 6°C

The Grey bar is 300 Hz wide, CW bandwidth..

So there is more or less 300 Hz drift over 10 minutes and more. Or much less in short term.. Where is the problem? Am I just lucky?

Lucky Peter

I guess we have to wait and see under real working conditions how unmodified LNBs would work.

73s DB8TF

BG0AUB QTH Xinjiang China

Quote from DB8TF

Lucky Peter

I guess we have to wait and see under real working conditions how unmodified LNBs would work.

73s DB8TF

I confess that my LNB is already modified (will edit this in my previous post) It has the original xtal inside but the plastic cover is broken in many places and the metal part exposed to the external world. This might a good explanation why I have so strong fluctuation up and down (+it's raining here)... Thanks for checking that!

I have a feel that might extra thermal insulation layer(s) of the LNB could drastically improve this. I learnt that from G0UPL Hans, when he shared his OCXO development experiences in case of WSPR mode: http://www.hanssummers.com/ocxosynth


73,
Zoltan