Date   

Re: BS SNR down this morning..

Francis Greaves
 

Same here in West Cork, Ireland
Francis


Re: BS SNR down this morning..

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

Dear All,

My SNR has been quite down this morning 09:00 ish when I first looked to the present 09:53 in SW London.
It's cloudy here, low cloud but not thick nor rain bearing.

Down about 0.4/5 dB.

Regards,
John Tellick.
==============================

Yes, you can see a drop of 0.5-1.0 dB (depending on who is reporting) around 08:30 this morning.

https://www.satsignal.eu/mrtg/performance_eumetcast-europe_link_margin.php

Cheers,
David
--
SatSignal Software - Quality software for you
Web: http://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


BS SNR down this morning..

geojohnt@...
 

Dear All,

My SNR has been quite down this morning 09:00 ish when I first looked to the present 09:53 in SW London.
It's cloudy here, low cloud but not thick nor rain bearing.

Down about 0.4/5 dB.

Regards,
John Tellick.


Re: TBS 6903 extra power cable

Ernst Lobsiger
 

Nigel,

Good to hear you had success. My receivers are old HW
and headless CLI systems only. I manage them via ssh.
This can also be done from Windows using e.g. PuTTY.

Can you give us a short description of your system?

PC:  Age, Processor, amount of RAM, SSD, HDD, Graphics Card
OS:  Debian Stretch 32Bit, 64Bit, Graphic or CLI install

Aim: 1 PC system with image processing under GNU/Linux
        2 PC system with processing under GNU/Linux or Windows

This will make it easier to give you a hand. As you managed
the driver issue quickly I'm confident you will soon be one
of those lonely rangers using GNU/Linux for EUMETCast :-).


Regards,
Ernst


Re: TBS 6903 extra power cable

nigel
 

Many thanks for the help, Ernst.

I've now obtained the open source dvb drivers and built them, as you described and as shown in the github wiki you indicated.

After a reboot, the card is now recognized:-  ls -l /dev/dvb* showing adapter0 and adapter1.

Good stuff and thank you!

I'll now have a read of your STRETCH64.txt and continue with the Eumetsat installation instructions.

Great to be making progress.

Regards

Nigel



On 03/10/2018 20:52, Ernst Lobsiger wrote:

Nigel,

Don't expect Debian to "recognize" a TBS-6903 as long
as you have not built the driver yourself. TBS drivers
are not In-Tree, not part of the kernel or distributed
modules. After booting you can do something like
"lspci ¦ grep TBS"  or also "dmesg ¦ grep TBS" and you
will eventually see the system has a card it doesn't
know how to handle. If the driver installs you will
see it as loaded module "lsmod ¦ less" (stop with q).


This is taken from my STRETCH64.txt that you find on this list.

<cite>
....

To get and compile open source dvb drivers from tbsdtv we have to
-----------------------------------------------------------------
apt-get install gcc
apt-get install make
apt-get install git
apt-get install patchutils
apt-get install libproc-processtable-perl
apt-get install linux-headers-`uname -r`


Build the OS card drivers: On March 8th 2018 as root do something like
----------------------------------------------------------------------
(For latest instructions check "https://github.com/tbsdtv/linux_media/wiki")

mkdir tbsdtv20180308
cd tbsdtv20180308
git clone https://github.com/tbsdtv/media_build.git
git clone --depth=1 https://github.com/tbsdtv/linux_media.git -b latest ./media
cd media_build
make dir DIR=../media
make allyesconfig
make -j2 >make.txt 2>&1 &
....

</cite>

Regards
Ernst

 



Re: TBS 6903 extra power cable

Ernst Lobsiger
 

Nigel,

Don't expect Debian to "recognize" a TBS-6903 as long
as you have not built the driver yourself. TBS drivers
are not In-Tree, not part of the kernel or distributed
modules. After booting you can do something like
"lspci ¦ grep TBS"  or also "dmesg ¦ grep TBS" and you
will eventually see the system has a card it doesn't
know how to handle. If the driver installs you will
see it as loaded module "lsmod ¦ less" (stop with q).


This is taken from my STRETCH64.txt that you find on this list.

<cite>
....

To get and compile open source dvb drivers from tbsdtv we have to
-----------------------------------------------------------------
apt-get install gcc
apt-get install make
apt-get install git
apt-get install patchutils
apt-get install libproc-processtable-perl
apt-get install linux-headers-`uname -r`


Build the OS card drivers: On March 8th 2018 as root do something like
----------------------------------------------------------------------
(For latest instructions check "https://github.com/tbsdtv/linux_media/wiki")

mkdir tbsdtv20180308
cd tbsdtv20180308
git clone https://github.com/tbsdtv/media_build.git
git clone --depth=1 https://github.com/tbsdtv/linux_media.git -b latest ./media
cd media_build
make dir DIR=../media
make allyesconfig
make -j2 >make.txt 2>&1 &
....

</cite>

Regards
Ernst

 


Re: TBS 6903 extra power cable

nigel
 

Thanks Ernst.
My graphics card isn't a real monster but does have good fan attached, so you could well be right!
I've dabbled with Linux (Arch linux) for a few years but haven't explored it very much. So some of this linux dvb stuff is very new to me!.
My cuurent Eumetcast reception & decoding is on a Win7 machine, but that is getting a bit "tired", hence my attempt to build a more modern setup & have a go at Debian.
I'm sure I won't get very far until the card is recognised by the system (!) so that's top priority right now.
Great to see what you're achieving - well done.
Cheers for now,
Nigel

Sent with AquaMail for Android
http://www.aqua-mail.com

On 3 October 2018 16:47:39 "Ernst Lobsiger" <ernst.lobsiger@...> wrote:

Nigel,

Do you have one of those MONSTER graphics cards that sucks 300 of your 350 Watts ;-)?
Sounds like you are rather new to Linux. Go for it, here is what you can do with a TBS-6903:

http://185.74.120.175:83

Cheers,
Ernst


Iceberg A-68 monitoring

Thorsten Miglus
 

Hi all,

spring arrives at Antartica. So iceberg A-68 is visible for Sentinel 3 again.
Visit a short animation at Twitter:
https://twitter.com/ThorstenMiglus/status/1047488653663121408

Cheers,
Thorsten


Re: TBS 6903 extra power cable

Ernst Lobsiger
 

Nigel,

Do you have one of those MONSTER graphics cards that sucks 300 of your 350 Watts ;-)?
Sounds like you are rather new to Linux. Go for it, here is what you can do with a TBS-6903:

http://185.74.120.175:83

Cheers,
Ernst


Re: TBS 6903 extra power cable

nigel
 

Many thanks, Douglas, David, Ernst & John for your quick replies !

I've found that the computer won't boot up unless the cable is connected - but I'm not sure that's my only problem !

With the cable connected and the system booted up, the card isn't recognized ( ls -l /dev/dvb*  says no such file or directory ) and "dvb-eumetcast-setup.sh" fails.

So, more investigation required !

The power supply is 350W and the only other PCI card is the graphics card.

Thanks for the tip, Ernst, to re read Hugo's thread - I'll do that tomorrow.

And thank you David for the good wishes (!) - just got to have a challenge !!

I'm sure I'll have more questions soon, meanwhile thanks again to you all,

Regards

Nigel


On 03/10/2018 15:29, seggins2000 via Groups.Io wrote:
Nigel

I have used a 6903 for a considerable time. I am running 2 at the moment and neither has the extra power cable connected. Most up-to-date computers have sufficient power to cope. I've found that addition of the cable makes no difference to the performance. 

Regards John 



Sent from Samsung Mobile on O2

-------- Original message --------
From: nigel <nigel@...>
Date: 03/10/2018 12:42 (GMT+00:00)
Subject: [MSG-1] TBS 6903 extra power cable

Hi to users of the TBS 6903 in a Linux machine,
I am endeavoring to set up a new Eumetcast receiving station, using Debian 9  and following the Eumetsat Linux installation guide that is delivered to the Info-Channel-1 regularly. (Also available here :-)
ftp://ftp.eumetsat.int/pub/OPS/out/user/EUMETCast_Support/EUMETCast_Licence_cd/Linux/DVB_devices/Common_Apps/Readme_dvb-eumetcast_debian_ubuntu.txt

First question that comes to mind is do I need to use the separate power cable that comes with the card ?
I've done some googling around and opinions seem to be divided and the User Manual that comes with the card doesn't mention it !
It's easy to connect so not a problem to use but I'm curious to know what problems, if any, to expect, if I don't use it.
Thanks for any comments !
Nigel


Re: TBS 6903 extra power cable

seggins2000
 

Nigel

I have used a 6903 for a considerable time. I am running 2 at the moment and neither has the extra power cable connected. Most up-to-date computers have sufficient power to cope. I've found that addition of the cable makes no difference to the performance. 

Regards John 



Sent from Samsung Mobile on O2

-------- Original message --------
From: nigel <nigel@...>
Date: 03/10/2018 12:42 (GMT+00:00)
To: MSG-1@groups.io
Subject: [MSG-1] TBS 6903 extra power cable

Hi to users of the TBS 6903 in a Linux machine,
I am endeavoring to set up a new Eumetcast receiving station, using Debian 9  and following the Eumetsat Linux installation guide that is delivered to the Info-Channel-1 regularly. (Also available here :-)
ftp://ftp.eumetsat.int/pub/OPS/out/user/EUMETCast_Support/EUMETCast_Licence_cd/Linux/DVB_devices/Common_Apps/Readme_dvb-eumetcast_debian_ubuntu.txt

First question that comes to mind is do I need to use the separate power cable that comes with the card ?
I've done some googling around and opinions seem to be divided and the User Manual that comes with the card doesn't mention it !
It's easy to connect so not a problem to use but I'm curious to know what problems, if any, to expect, if I don't use it.
Thanks for any comments !
Nigel


Re: TBS 6903 extra power cable

Ernst Lobsiger
 

Nigel,

Unless you have a motorized dish or some other really heavy stuff to feed you never use the extra power cable. The only card that needs the extra power cable is the SkyStar 2 Express because it's not fed via the PCIe bus.

I suppose you will run in some trouble with the EUMETSAT guide. It's worth to reread the recent thread when Hugo setup his Linux receiver. I have setup many Debian 9 and Devuan ASCII receivers. You can always ask.

Good Luck

Ernst




On Wed, Oct 3, 2018 at 04:42 AM, nigel wrote:
Hi to users of the TBS 6903 in a Linux machine,
I am endeavoring to set up a new Eumetcast receiving station, using Debian 9  and following the Eumetsat Linux installation guide that is delivered to the Info-Channel-1 regularly. (Also available here :-)
ftp://ftp.eumetsat.int/pub/OPS/out/user/EUMETCast_Support/EUMETCast_Licence_cd/Linux/DVB_devices/Common_Apps/Readme_dvb-eumetcast_debian_ubuntu.txt

First question that comes to mind is do I need to use the separate power cable that comes with the card ?
I've done some googling around and opinions seem to be divided and the User Manual that comes with the card doesn't mention it !
It's easy to connect so not a problem to use but I'm curious to know what problems, if any, to expect, if I don't use it.
Thanks for any comments !
Nigel


Re: TBS 6903 extra power cable

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

Hi to users of the TBS 6903 in a Linux machine,
I am endeavoring to set up a new Eumetcast receiving station, using Debian 9 and following the Eumetsat Linux installation guide that is delivered to the Info-Channel-1 regularly. (Also available here :-)
ftp://ftp.eumetsat.int/pub/OPS/out/user/EUMETCast_Support/EUMETCast_Licence_cd/Linux/DVB_devices/Common_Apps/Readme_dvb-eumetcast_debian_ubuntu.txt

First question that comes to mind is do I need to use the separate power cable that comes with the card ?
I've done some googling around and opinions seem to be divided and the User Manual that comes with the card doesn't mention it !
It's easy to connect so not a problem to use but I'm curious to know what problems, if any, to expect, if I don't use it.
Thanks for any comments !
Nigel
============================

I would advise connecting it. It's quite possible that the LNB power and perhaps 22 kHz cones via that (more power capable) route.

"Good luck" with the Linux!

Cheers,
David
--
SatSignal Software - Quality software for you
Web: http://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


Re: Solar outage SNR

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

David,

I don't have a TBS receiver, ???

Thanks for the useful links.

My outage 'SNR drop' is longer on the west side of the dish compared to the east.
I put that down to the fact that the shadowing of the dense fir tree ahead of my dish being only a 'couple' of degrees off (to the east of) 10 degrees E.

So it shadows the easterly side lobe pick-up?

Regards,
John.
=================================

John,

Take a look on eBay and you might be able to find a second-hand TBS USB box.

What you say makes sense at the first reading.

Cheers,
David
--
SatSignal Software - Quality software for you
Web: http://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


Re: TBS 6903 extra power cable

Douglas Deans
 

On 03/10/2018 12:42, nigel wrote:
Hi to users of the TBS 6903 in a Linux machine,
I am endeavoring to set up a new Eumetcast receiving station, using Debian 9  and following the Eumetsat Linux installation guide that is delivered to the Info-Channel-1 regularly. (Also available here :-)
ftp://ftp.eumetsat.int/pub/OPS/out/user/EUMETCast_Support/EUMETCast_Licence_cd/Linux/DVB_devices/Common_Apps/Readme_dvb-eumetcast_debian_ubuntu.txt
First question that comes to mind is do I need to use the separate power cable that comes with the card ?
I've done some googling around and opinions seem to be divided and the User Manual that comes with the card doesn't mention it !
It's easy to connect so not a problem to use but I'm curious to know what problems, if any, to expect, if I don't use it.
Thanks for any comments !
Nigel
=================================================================================================

Hello Nigel,

I have a Windows system but really don't think that the use or otherwise of a PCI card power cable has any relevance to the operating system.
What will matter is the computer spec., how many other PCI cards are using the system and the size of you computer power supply.

I have a rather old computer but is does have a 500 watt power supply so it was a no-brainer to connect the power cable provided with the TBS 6903 particularly as I have a reasonable good graphics card that uses power from the PCI system (ie no direct power connection) and other PCI devices.
If you have a spare power connection I would use it.

Regards,
Douglas.


TBS 6903 extra power cable

nigel
 

Hi to users of the TBS 6903 in a Linux machine,
I am endeavoring to set up a new Eumetcast receiving station, using Debian 9  and following the Eumetsat Linux installation guide that is delivered to the Info-Channel-1 regularly. (Also available here :-)
ftp://ftp.eumetsat.int/pub/OPS/out/user/EUMETCast_Support/EUMETCast_Licence_cd/Linux/DVB_devices/Common_Apps/Readme_dvb-eumetcast_debian_ubuntu.txt

First question that comes to mind is do I need to use the separate power cable that comes with the card ?
I've done some googling around and opinions seem to be divided and the User Manual that comes with the card doesn't mention it !
It's easy to connect so not a problem to use but I'm curious to know what problems, if any, to expect, if I don't use it.
Thanks for any comments !
Nigel


Re: Solar outage SNR

geojohnt@...
 

David,

I don't have a TBS receiver, ???

Thanks for the useful links.

My outage 'SNR drop' is longer on the west side of the dish compared to the east.
I put that down to the fact that the shadowing of the dense fir tree ahead of my dish being only a 'couple' of degrees off (to the east of) 10 degrees E.

So it shadows the easterly side lobe pick-up?

Regards,
John.

++++++++++++++

In a message dated 02/10/2018 14:51:39 GMT Standard Time, gm8arv@... writes:

You've just got time to set up that TBS/BDADataEx monitoring PC!

The (theoretical) angle between the the first points (cones) on either side
on the dish aiming point where the dish gain is zero (well, minimum).

See:
http://happy.emu.id.au/lab/rep/rep/9510/picspace/fig7a.gif

From:
http://happy.emu.id.au/lab/rep/rep/9510/txtspace/9510_010.htm

Hope that helps.


Re: Solar outage SNR

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

David,

You beat me to it.

I'm eagerly awaiting my co-linearity next week to see if the neighbours fir tree has grown with its shadow taking up some of the shift I made to my dish in February.

One thing perhaps you could answer with WXtrack Solar Outage details is, what does 'First nulls beamwidth: 3.73 degrees' mean/show?

Regards,
John.
==================================

John,

You've just got time to set up that TBS/BDADataEx monitoring PC!

The (theoretical) angle between the the first points (cones) on either side on the dish aiming point where the dish gain is zero (well, minimum).

See:
http://happy.emu.id.au/lab/rep/rep/9510/picspace/fig7a.gif

From:
http://happy.emu.id.au/lab/rep/rep/9510/txtspace/9510_010.htm

Hope that helps.

Cheers,
David
--
SatSignal Software - Quality software for you
Web: http://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


Re: Solar outage SNR

geojohnt@...
 

David,

You beat me to it.

I'm eagerly awaiting my co-linearity next week to see if the neighbours fir tree has grown with its shadow taking up some of the shift I made to my dish in February.

One thing perhaps you could answer with WXtrack Solar Outage details is, what does 'First nulls beamwidth: 3.73 degrees' mean/show?

Regards,
John.

+++++++++++++++

In a message dated 02/10/2018 10:20:54 GMT Standard Time, gm8arv@... writes:

A reminder to those of you with a TBS/BDADataEx setup that I have a simple
set of programs to record and display the solar outage which will be with us
any day now. It could highlight any misalignment in azimuth or elevation of
your antenna. You can download the programs here:

http://www.satsignal.eu/software/beta.htm

Have a play with the program now, before the outage, to check it's working!
Sample results attached.

Registered WXtrack users can get a prediction from the View, Solar outage
menu - sample attached.


Solar outage SNR

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

A reminder to those of you with a TBS/BDADataEx setup that I have a simple set of programs to record and display the solar outage which will be with us any day now. It could highlight any misalignment in azimuth or elevation of your antenna. You can download the programs here:

http://www.satsignal.eu/software/beta.htm

Have a play with the program now, before the outage, to check it's working! Sample results attached.

Registered WXtrack users can get a prediction from the View, Solar outage menu - sample attached.

Cheers,
David
--
SatSignal Software - Quality software for you
Web: http://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv