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HVS-2 on 11263 MHz V active
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The new HVS-2 feed on the vertically polarised 11236 MHz transponder has been active since yesterday afternoon as I reported on Twitter, and Douglas has found that it's carrying Sentinel data. It may be marginally stronger than the 11388 MHz service, as I expected from earlier tests, but this is a preliminary report.
https://www.eumetsat.int/eumetcast-europe-service-transponder-migration Reception reports welcome. Cheers, David -- SatSignal Software - Quality software for you Web: https://www.satsignal.eu Email: david-taylor@... Twitter: @gm8arv |
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Ernst Lobsiger
On Fri, Nov 11, 2022 at 08:53 PM, David J Taylor GM8ARV 🏴 🇪🇺 wrote:
The new HVS-2 feed on the vertically polarised 11236 MHz transponder has been active since yesterday afternoonHi, a theoretical possibility to check the LNB skew via SNR ... Ernst |
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Ernst Lobsiger
On Fri, Nov 11, 2022 at 08:53 PM, David J Taylor GM8ARV 🏴 🇪🇺 wrote:
Reception reports welcome.David, Did they switch that on 15:00? If so look at SNR Darlington. Minor SNR steps down also seen at Lodz, Brussels and Petersfield ... Ernst |
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On 12/11/2022 05:56, Ernst Lobsiger via groups.io wrote:
Hi,Yes, that's the best way. With V active and no H signal, listen on H, adjust skew for zero received on H. Or the other way round with only H active, adjust for minimum V signal. I guess easier if you have a spectrum analyser covering up to 2 GHz (now available at about €30 with free software). With both active , adjust skew for best SNR on both. May have to compromise! Cheers, David -- SatSignal Software - Quality software for you Web: https://www.satsignal.eu Email: david-taylor@... Twitter: @gm8arv |
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On 12/11/2022 06:09, Ernst Lobsiger via groups.io wrote:
David,I don't have the exact time, Ernst, and to be honest doing that last thing on a Friday afternoon is not what I expected! Douglas and I have been discussing the SNR issue and my guess is that with inexpensive cable and long runs there is cross-coupling so that the isolation between H and V 1513 MHz signals is reduced, and hence the SNR on both H and V is reduced. The V on 11263 was switched off after September 20, so we might look back on the records to see whether the SNR improved marginally after that date. Cheers, David -- SatSignal Software - Quality software for you Web: https://www.satsignal.eu Email: david-taylor@... Twitter: @gm8arv |
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Ernst Lobsiger
On Fri, Nov 11, 2022 at 11:10 PM, David J Taylor GM8ARV 🏴 🇪🇺 wrote:
The V on 11263 was switched off after September 20, so we might look back on the records to see whether the SNR improved marginally after that date.David and Douglas, a bump yesterday 15:00 is even better seen on more stations with link margin: http://www.satsignal.eu/mrtg/performance_eumetcast-europe_link_margin.php It might be a good thing if someone can figure out and publish V transponder on/off times (if switched off again?). Ernst |
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James Brown
Thanks to all for the reporting. Strange to see how little my own reception was affected here in S Wales in the U.K.
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James. On 12 Nov 2022, at 08:03, Ernst Lobsiger via groups.io <ernst.lobsiger@...> wrote:
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Ernst Lobsiger
On Sat, Nov 12, 2022 at 12:25 AM, James Brown wrote:
Strange to see how little my own reception was affected here in S Wales in the U.K.James, provided this 15:00 event is really the switch ON of the V transponder, then this means that stations with a good LNB skew will see less than those with a skew yet to improve. An additional effect might be a possible cross-coupling of long cables mentioned by David. On my two TC receivers I do not see any bump but my lon=7.5° has low skew anyway. Ernst |
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geojohnt@aol.com
David, Ernst and All,
I had looked a couple of days ago but the new feed hadn't been fired up.
I presumed it would be active ahead of the 'stated date.'
Having re-aligned my dish last week after 'wind damage,' - I just got the elevation and azimuth back, didn't check skew as I can never make my mind up owing to a bit of leeway, clock and anti-clockwise, when I'm on '0.'
My SNR (which varies a little during the day - clear sky) was, without 11.263 V on, between 13.6/7 and 13.9 dB. with a 1 m dish and an Inverto Black Ultra quad LNB - and SR1.
Now10:07 - and I don't know which part of my daily variation I'm in - my SNR is 13.6 dB fairly steady.
Can someone with an SR1 please remind me of the 'Tuner Frequency' change required on #1 of the SR1 setup for 11.263 V please and of course I have to switch to vertical on # H.
Oh, and Ernst makes an important point regarding skew and the receiving stations location relative to '10 degrees east.'
Regards,
John.
-----Original Message-----
From: David J Taylor GM8ARV 🏴 🇪🇺 via groups.io <david-taylor@...> To: MSG-1@groups.io Sent: Sat, 12 Nov 2022 4:53 Subject: [MSG-1] HVS-2 on 11263 MHz V active The new HVS-2 feed on the vertically polarised 11236 MHz transponder has been
active since yesterday afternoon as I reported on Twitter, and Douglas has
found that it's carrying Sentinel data. It may be marginally stronger than the
11388 MHz service, as I expected from earlier tests, but this is a preliminary
report.
Reception reports welcome.
Cheers,
David
--
SatSignal Software - Quality software for you
Email: david-taylor@...
Twitter: @gm8arv
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Ian Deans
On 12/11/2022 07:10, David J Taylor GM8ARV 🏴 🇪🇺 via groups.io wrote:
Douglas and I have been discussing the SNR issue and my guess is that with inexpensive cable and long runs there is cross-coupling so that the isolation between H and V 1513 MHz signals is reduced, and hence the SNR on both H and V is reduced.------------------------------------------ Up here in Angus Scotland the signal level for 11263 V is terrible. With a 1.1 metre dish I can on a clear day get between 12.9 and 13.3 SNR on basic and HVS-1 The signal for HVS-2 on the existing transponder is normally between 12.00 and 12.3 SNR. The signal on the 11263 V is struggling to get over 10.2 SNR which probably makes it unusable. I need to look at the skew which is maximised for the basic service but my gut feeling is not to compromise the basic signal. Regards Ian. |
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James Brown
Just checked on my TBS6903 on the H/V and find:
H RF 98 and quality 84 L. RF 98 and quality 81-82 I currently use the TBS for HVS 1 and 2 using the Crazy Cat silicon switch for dual mode. Kept the SR-1 for basic only. Will now have to reconfigure the SR-1 to do basic and HVS-1 and just use the TBS in single mode. Cheers James. |
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Ernst Lobsiger
Dear All,
I just changed one of my TC receivers to HVS-2 vertical. I currently receive channels E2H-S3A-02 and E2H-S3A-04. Signal strength increased up to +7dB, SNR about +0.8dB. Cheers, Ernst 
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Ernst Lobsiger
On Sat, Nov 12, 2022 at 02:58 AM, James Brown wrote:
I currently use the TBS for HVS 1 and 2 using the Crazy Cat silicon switch for dual mode.James, You can use the TBS-6903 with two cables for Basic HVS-1 (H) and HVS-2 (V). If you have 3 cables or maybe a splitter you could even use your SR1 for Basic with MODCODS 8psk 3/5 set and your TBS-6903 for HVS-1 (H) and HVS-2 (V). Ernst |
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James Brown
Thanks Ernst.
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I have a dual LNB and two cables at the moment. Cheers. James On 12 Nov 2022, at 11:31, Ernst Lobsiger via groups.io <ernst.lobsiger@...> wrote:
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Jeskynar
On Sat, 12 Nov 2022, 04:53 David J Taylor GM8ARV 🏴 🇪🇺 via groups.io, <david-taylor=blueyonder.co.uk@groups.io> wrote: The new HVS-2 feed on the vertically polarised 11236 MHz transponder has been |
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On 12/11/2022 08:02, Ernst Lobsiger via groups.io wrote:
It might be a good thing if someone can figure out and publish V transponder on/off times (if switched off again?).I do check twice a day, but just note the times of checking. David -- SatSignal Software - Quality software for you Web: https://www.satsignal.eu Email: david-taylor@... Twitter: @gm8arv |
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Ernst Lobsiger
On Sat, Nov 12, 2022 at 03:40 AM, James Brown wrote:
I have a dual LNB and two cables at the moment.James, with a TWIN LNB and 2 cables there is even another solution: If you do not need MODCOD filters you can now reconfigure your SR1 for HVS-2 (V) and basically let your TBS-6903 as is but receive just BAS + HVS-1 (H) on demodulator 0. Then in summer 2023 you can use your TBS-6903 in single cable mode again and add HVS-3 (H) on demodulator 1. No need for splitters or 3 cables. Cheers, Ernst |
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On 12/11/2022 10:17, Ian Deans via groups.io wrote:
Up here in Angus Scotland the signal level for 11263 V is terrible.Thanks for the report, Ian. You'll just need to hope for continuing good weather for HVS-2! Let's hope that the move to EUTELSAT 10B next year will result in better signals for all! Cheers, David -- SatSignal Software - Quality software for you Web: https://www.satsignal.eu Email: david-taylor@... Twitter: @gm8arv |
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James Brown
That’s an email I will be keeping for a very long time!
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Thank you again Ernst. James. On 12 Nov 2022, at 12:03, Ernst Lobsiger via groups.io <ernst.lobsiger@...> wrote:
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fvalk@...
In order not to interrupt normal operations I have tested the following on a spare machine:
Correctly working is the configuration with TBS-6903, using two separate cables coming from an LNB Inverto pro pll octo.
I am using two instances of BdaData in this configuration.
When I change only Transponder-2 to 11263 vertical, HVS-2 keeps receiving, but instantly Transponder-1 loses all data. As soon as I change the vertical back to horizontal, the data comes back to Transponder 1 and Transponder 2 loses data, until I also change the frequency to 11388 again, after which all is working correctly.
It seems that in my setup horizontal and vertical cannot be allotted simultaneously, but I fail to see why that might be.
Cheers, Ferdinand
From: MSG-1@groups.io On Behalf Of Ernst Lobsiger via groups.io
Sent: Saturday, 12 November, 2022 12:04 To: MSG-1@groups.io Subject: Re: [MSG-1] HVS-2 on 11263 MHz V active
On Sat, Nov 12, 2022 at 03:40 AM, James Brown wrote:
James, |
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