23.5° E Astra 3B Feeds

[John]

Found them. There are 4 but it may appear that there are more due to their pulse nature which will confuse the analyser plotting. The waterfall shows that the upper pair have a high duty cycle and the lower pair a duty cycle <50%. They are just visible on the CS scan.

Has anyone managed to resolve the 6? horizontal signals at the top of the band?

View attachment 112514 View attachment 112515 View attachment 112516

System seems to be working Ok Graham, just give us a run down on exactly what is in use for other people's benefits to get the results you are having. I'm still on 7° East looking at problem with pics on 21.750 H. Will swing around to 23.5° East in a moment
** My spare servo came today, did yours ?.

 

[John]

Found them. There are 4 but it may appear that there are more due to their pulse nature which will confuse the analyser plotting. The waterfall shows that the upper pair and the lowest one have a high duty cycle and 21490 has a duty cycle <50%. They are just visible on the CS scan.

Has anyone managed to resolve the 6? horizontal signals at the top of the band?

View attachment 112514 View attachment 112515 View attachment 112516

That cluster of 6? has been there for ages and ages G, Ka signal levels are down at the moment due to looking through snow storm

 

[s-band]

System seems to be working Ok Graham, just give us a run down on exactly what is in use for other people's benefits to get the results you are having. I'm still on 7° East looking at problem with pics on 21.750 H. Will swing around to 23.5° East in a moment
** My spare servo came today, did yours ?.

Gilat PLL with Gilat feed but messy rectangular to circular conversion mis matched to f/d of dish. Prodelin/General Dynamics 1.2m 0.8f/d. Overall system noise temp is rubbish at around 280K.
Servo here and works.

That cluster of 6? has been there for ages and ages G, Ka signal levels are down at the moment due to looking through snow storm

Yes, I saw them on the satellitescommunity plots, dating back a long way, but wondered if they are weak everywhere or on a very tight beam.

 

[dx qwer]

On again:

21572 H 7200 3/4 DVB-S2/HD 8PSK

 

[John]

On again:

21572 H 7200 3/4 DVB-S2/HD 8PSK

We struggle a bit with this satellite in this part of the UK as the signal is starting to thin out a bit. Maximum signal for me on the 1.25 Gibby + Inverto Ka /Ku lnbf is 6dB, just a bit too low for a lock .
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[dx qwer]

Feed on again, but not lockable with my 1.2m dish.

21582 H 7200 3/4 DVB-S2/HD 8PSK

 

[John]

Feed on again, but not lockable with my 1.2m dish.

21582 H 7200 3/4 DVB-S2/HD 8PSK

I can see it on the scope Edgar but as usual the signals a bit thinner for us - only 3.5dB max

 

[dreamsat]

21568 H 4100 5/6 Feed "SSUNTEDvsBAROKA"

regards dreamsat