Implement 'Low Symbolrate'

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PE2AAB
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Joined: Tue Dec 07, 2021 12:14 am

Implement 'Low Symbolrate'

Post by PE2AAB »

Dear Sirs,

Would it be possible to implement the possibility of choosing a very low symbol rate? Now most firmware's only allow symbol rates as low as 1 MSymb/s for DVB S2 reception. It would be very useful for the worldwide Ham Radio community to go as low as 00125 kSymb/s for very narrow band broadcast signals.

These low symbol rates are ofthen used on the Ham Radio transponder of the Es’hail-2 satellite. If you could make this happen I guess this will really expand your business because very limited STB manufacturers offer this functionality.

More info:

Code: Select all

https://amsat-uk.org/satellites/geo/eshail-2

gater140
Posts: 22
Joined: Fri Dec 31, 2021 11:11 pm
Location: Townsville

Re: Implement 'Low Symbolrate'

Post by gater140 »

I tried my v7 pro combo to receive sr1435 on 172E without luck.
Tried an old previous cheap box clearview 1000Hd and got it.

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Feralkiwi
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Re: Implement 'Low Symbolrate'

Post by Feralkiwi »

gater140 wrote:
Tue Mar 08, 2022 1:16 am
I tried my v7 pro combo to receive sr1435 on 172E without luck.
Tried an old previous cheap box clearview 1000Hd and got it.
I get the ABC radio off Optus D2 at 1644 SR ok.
It does not scan it every time, but does work.

What signal on 172e is this?

Owen
Dishes; 3x3m, 2.4m and 4.1m, 10+ ku, 2 movers, USARLS. V8 Combo, Pro, V8 Golden, Nova V8Pro2, GTC, Super.V7HDs, Combo and V7s V7Plus Finder, Finder-Meter V8X / UHD V7Pro GT/XCombo. Sats 100.5E to 177W. I'm a Sat hobbyist who helps out.

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Feralkiwi
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Re: Implement 'Low Symbolrate'

Post by Feralkiwi »

Yes I did get this.

It was a very weak signal and the GT Combo did not "See" it in blind scans, but did lock and scan via the TP menu.
The TP was in the TP list from factory.

Owen
Dishes; 3x3m, 2.4m and 4.1m, 10+ ku, 2 movers, USARLS. V8 Combo, Pro, V8 Golden, Nova V8Pro2, GTC, Super.V7HDs, Combo and V7s V7Plus Finder, Finder-Meter V8X / UHD V7Pro GT/XCombo. Sats 100.5E to 177W. I'm a Sat hobbyist who helps out.

gater140
Posts: 22
Joined: Fri Dec 31, 2021 11:11 pm
Location: Townsville

Re: Implement 'Low Symbolrate'

Post by gater140 »

What was the signal quality.?
Mine 63 but did not lock.
Usually lock around 65-67 from memory

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Feralkiwi
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Re: Implement 'Low Symbolrate'

Post by Feralkiwi »

My GT Combo is sig 90% and Q 63%.
It is just getting a lock and is dropping in out.
3m dish

Owen
Dishes; 3x3m, 2.4m and 4.1m, 10+ ku, 2 movers, USARLS. V8 Combo, Pro, V8 Golden, Nova V8Pro2, GTC, Super.V7HDs, Combo and V7s V7Plus Finder, Finder-Meter V8X / UHD V7Pro GT/XCombo. Sats 100.5E to 177W. I'm a Sat hobbyist who helps out.

gater140
Posts: 22
Joined: Fri Dec 31, 2021 11:11 pm
Location: Townsville

Re: Implement 'Low Symbolrate'

Post by gater140 »

Thank you.

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