Date   

Re: QUAD Inverto Black Ultra LNB

geojohnt@...
 

Hello Ernst,

I've been watching this unfolding discussion and thought I would have a go.

I use a 'Quad Hi Gain Low Noise' Inverto Black Ultra LNB but only use two outputs regularly - one for 24/7 EUMETCast TP 1 the other for receiving Eutelsat 9B TV - not running 24/7 but switched on and off most days.

The third port I use occasionally for checking signal/spectrum on a spectrum analyser.

The Eutelsat 9B cable itself is separate from the other two 'quad cables' which run together for a length of around 4.5 m through a narrow plastic tube along with another cable coming from another dish receiving Astra 1 which is not on 24/7 but switched on and off for a time most days.

Total cable run is around 14/15 m and is CT100.
The Eutelsat 9B coax is from a German websate firm but I'm not sure of it's 'technical spec/quality.'
It's 'silver' screening mesh is fairly open and the 'metal shield' is also 'silver.'
Not as high a technical spec/quality as CT100.

Right, mmmm, interesting.
You appear to be right.

My Tellicast Statistics and SR1 Telnet readout have been running 3 days and 2 hours 15 minutes after a reset and the figures from that time were:

HVS 1 M. P. B4. FEC.  47
           FEC. R. P.         0

BS      M. P. BS. FEC. 10
           FEC. R. P.        10 

Switch on another port (Eutelsat 9B)  HVS 1 now M.P. B4. FEC.  104  -  FEC. R. P.   0.
                                                            BS now      M. P. B4. FEC.  170  -  FEC. R. P.   41 

SR1 Telnet Readout after '3 days 2 hr 15 mins reset:' 

B. F. C. 43
B. P. C. 351.

After switch on of adjacent Eutelst 9B port: B. F. C. 61  -  B. P. C. 361.

I switched the adjacent port on again an hour later - the second of (new) figures above had remained the same and the new figures were now:

HVS 1 M. B. P. B4. FEC   155.
           FEC. R. P.              1

BS      M. B. P. B4. FEC.   233
           FEC. R. P.              41    

SR1 readout 'second set new' figures above had remained the same, the new figures are now:

B. F. C.  62
B. P. C.  389

Sorry about the above tabulation format, I hope it remains as typed and makes sense.

It does seem switching on another quad output 'effects' EUMETCast's SR1 readout and Tellicast Statistics.

Best wishes,
John.

 







-----Original Message-----
From: Ernst Lobsiger via groups.io <ernst.lobsiger@...>
To: MSG-1@groups.io
Sent: Sat, 15 Aug 2020 18:11
Subject: [MSG-1] QUAD Inverto Black Ultra LNB

Dear All

I have used a QUAD Inverto Black Ultra LNB for years. During this
summer I did again intensive testing with up to 4 TC receivers.
Only lately I discovered that the moment of starting a TC receiver
on one of the four cables can regularly produce missed packets
on the rest of the running TC receivers on the other three cables.

Has this been observed by other users that use a/this QUAD LNB?
Is this a problem of the multiswitch or some voltage regulator?
Can someone with electrical backgound comment on my 25m cables?
Is this a sign that it is about time to have this QUAD LNB replaced?


Best regards
Ernst

P.S.
It's well possible it has always been like that and I just didn't notice.


Re: QUAD Inverto Black Ultra LNB

Ernst Lobsiger
 

On Sun, Aug 16, 2020 at 12:02 PM, Ian Deans wrote:
Ernst, I tried the above this evening and saw no missed packets.
Ian

Thanks for your test. I have an unused spare QUAD Inverto Black Ultra and will probably test this one.
Of course you can only get missed packets when file transfer takes place. But with Basic+HVS-1
and a couple of EUMETCast channels subscribed this should almost always be the case.

Regards
Ernst


Re: QUAD Inverto Black Ultra LNB

Ian Deans
 

On 16/08/2020 17:44, Ernst Lobsiger via groups.io wrote:
On Sun, Aug 16, 2020 at 05:02 AM, Markus Kempf wrote:
You might want to switch to this setup for unlimited flexibility and
you have 4 cables already. Markus
I'am not interested in SAT TV and until we know how HVS-3, HVS-4  will be installed I will not follow EUMETSAT's QUATTRO recommandations.
A TBS6908 V10 can already handle all that today. But we get off topic. A "negative" post, that someone has a QUAD or TWIN LNB and at least
two TelliCast receivers (two cables) connected and does *NOT* see these missed packets I described above, would be valuble information too.
Cheers
Ernst
___________________________________________________________________________

Ernst, I tried the above this evening and saw no missed packets.

I have a twin Inverto Black ultra and was running one cable attached to a TBS 5925 taking basic and HVS-1. The other cable was lying unattached to any receiver.

I then attached the spare cable to my SR1 and set it up for HVS-2 via telnet and then commenced to receive HVS-2 data. The basic and HVS-1 services from my TBS 5925 were still at 0 packets lost and no lost or recovered either.

Hope that helps.

Regards
Ian.


Re: QUAD Inverto Black Ultra LNB

Ernst Lobsiger
 

On Sun, Aug 16, 2020 at 05:02 AM, Markus Kempf wrote:
You might want to switch to this setup for unlimited flexibility and you have 4 cables already. 
Markus

I'am not interested in SAT TV and until we know how HVS-3, HVS-4  will be installed I will not follow EUMETSAT's QUATTRO recommandations.
A TBS6908 V10 can already handle all that today. But we get off topic. A "negative" post, that someone has a QUAD or TWIN LNB and at least
two TelliCast receivers (two cables) connected and does *NOT* see these missed packets I described above, would be valuble information too.

Cheers
Ernst


Re: QUAD Inverto Black Ultra LNB

Markus Kempf
 

Ernst, yes I have quattro switches with fixed band/polarization outputs. You might want to switch to this setup for unlimited flexibility and you have 4 cables already. 

Markus
Am 16. Aug. 2020, 14:23 +0300 schrieb Ernst Lobsiger via groups.io <ernst.lobsiger@...>:

Markus

I know routers like the SR1 have the possibility to compensate for long cable runs with increased voltages. There is no such thing on my TBS PCIe cards.
But I think this has never been a problem so far. The fact that all my receivers have their independant APC-Smart-1000 UPS  might be a problem though.

On Sun, Aug 16, 2020 at 03:57 AM, Markus Kempf wrote:
... two quad lnb for Astra/Hotbird with in-house Switches. 
I f you use in-house switches don't you actually have QUATTRO LNBs (... what EUMETSAT proposes us to use with multiple routers in the future) ?
Of course on Astra/Hotbird TV channels you will hardly see a small glitch if another channel is switching on.

Best regards
Ernst


<ABB_2495_03_09_Block_Quattro-LNB.gif>


Re: QUAD Inverto Black Ultra LNB

Ernst Lobsiger
 

Markus

I know routers like the SR1 have the possibility to compensate for long cable runs with increased voltages. There is no such thing on my TBS PCIe cards.
But I think this has never been a problem so far. The fact that all my receivers have their independant APC-Smart-1000 UPS  might be a problem though.

On Sun, Aug 16, 2020 at 03:57 AM, Markus Kempf wrote:
... two quad lnb for Astra/Hotbird with in-house Switches. 
I f you use in-house switches don't you actually have QUATTRO LNBs (... what EUMETSAT proposes us to use with multiple routers in the future) ?
Of course on Astra/Hotbird TV channels you will hardly see a small glitch if another channel is switching on.

Best regards
Ernst




Re: QUAD Inverto Black Ultra LNB

Markus Kempf
 

Ernst, you could try an increased supply voltage for the lnb. Some tuners allow this setting. You can also measure the nominally 13/18V at the LNB. Too low a voltage could be a reason. Second guess is a bad capacitor in the lnb. Third guess a suboptimal circuit design of the switch matrix. I own a single Inverto black ultra lnb with approx 30m of cable run and two quad lnb for Astra/Hotbird with in-house Switches. 

Markus
Am 16. Aug. 2020, 13:44 +0300 schrieb Ernst Lobsiger via groups.io <ernst.lobsiger@...>:

Dear All

I attach an schematic layout of a typical QUAD LNB. The only difference
from a SINGLE or TWIN LNB is the multiswitch (matrix) at the right side.

SINGLE: 4 x 1
TWIN   : 4 x 2
QUAD  : 4 x 4

So the effect I observed lately should also be seen on a TWIN LNB.
Assuming you have e.g. a TWIN Inverto Black Ultra LNB with two TC
receivers of any kind (Router like SR1, TBS PCIe card or USB-box).
If a first receiver is running (e.g with BASIC + HVS-1) and you
now start and tune the second receiver (e.g. HVS-2), does this
produce a burst of missed packets on the first TC receiver?

If this is a problem of the multiswitch maybe someone uses an
external multiswitch and has observed a similar effect. Switching
on one channel would give a burst of missed packets on a running
TelliCast receiver on a different cable?

My four 25m cables run in a plastic tube of about 1'' diameter. But
they have shielding > 100dB and I cannot think of a DC powering of one
cable can affect IF frequencies in another cable. HAMs might comment.


Best regards
Ernst

<ABB_2495_03_08_Block_Quad_L.gif>


Re: QUAD Inverto Black Ultra LNB

Ernst Lobsiger
 

Dear All

I attach an schematic layout of a typical QUAD LNB. The only difference
from a SINGLE or TWIN LNB is the multiswitch (matrix) at the right side.

SINGLE: 4 x 1
TWIN   : 4 x 2
QUAD  : 4 x 4

So the effect I observed lately should also be seen on a TWIN LNB.
Assuming you have e.g. a TWIN Inverto Black Ultra LNB with two TC
receivers of any kind (Router like SR1, TBS PCIe card or USB-box).
If a first receiver is running (e.g with BASIC + HVS-1) and you
now start and tune the second receiver (e.g. HVS-2), does this
produce a burst of missed packets on the first TC receiver?

If this is a problem of the multiswitch maybe someone uses an
external multiswitch and has observed a similar effect. Switching
on one channel would give a burst of missed packets on a running
TelliCast receiver on a different cable?

My four 25m cables run in a plastic tube of about 1'' diameter. But
they have shielding > 100dB and I cannot think of a DC powering of one
cable can affect IF frequencies in another cable. HAMs might comment.


Best regards
Ernst


QUAD Inverto Black Ultra LNB

Ernst Lobsiger
 

Dear All

I have used a QUAD Inverto Black Ultra LNB for years. During this
summer I did again intensive testing with up to 4 TC receivers.
Only lately I discovered that the moment of starting a TC receiver
on one of the four cables can regularly produce missed packets
on the rest of the running TC receivers on the other three cables.

Has this been observed by other users that use a/this QUAD LNB?
Is this a problem of the multiswitch or some voltage regulator?
Can someone with electrical backgound comment on my 25m cables?
Is this a sign that it is about time to have this QUAD LNB replaced?


Best regards
Ernst

P.S.
It's well possible it has always been like that and I just didn't notice.


Re: Electro-L N2

Graham Woolf
 

Hi Ernst

Thanks - I have just seen on the User Notification Service that it is being re-positioned . This started on 24 July I think so no data since then

Regards

Graham


Re: Electro-L N2

Ernst Lobsiger
 

Graham

AFAIK these should arrive in E1B-TPG-1. I have an emtied data directory from August 3rd.
Seems I have received data until then (files have been deleted meanwhile). So NO data.

Ernst


Electro-L N2

Graham Woolf
 

Hi

Is it just me or has the data from this satelite stopped coming though . I haven't received any data for a few weeks - in fact since about 21st July

Any one else the same ?

Kind Regards

Graham


TP 1 'up again.'

geojohnt@...
 

All,

I see that my SNR is higher than usual at this time of day.
David's Euro logs show an increase in signal from around 11:00 this morning seen 'across Europe' coinciding with storms in NE Austria.

BTW, finally got around to updating my EUMETCast computer Windows 10, 64 this morning to 2004.
Everything working OK so far.

Regards,
John.





Re: RAMdisk?

James Brown
 

I wonder if it is appropriate to ask re David’s last point if one can just swap the tc files?

JB

On 6 Aug 2020, at 18:38, David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺 via groups.io <david-taylor=blueyonder.co.uk@groups.io> wrote:

-----Original Message----- From: Hartmut Schulla
Sent: Thursday, August 6, 2020 3:53 PM
To: MSG-1@groups.io
Subject: Re: [MSG-1] RAMdisk?

Windows 64Bit
===============================

Perfect! Danke! I was planning on using this PC change to try the new client in any case.

David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@blueyonder.co.uk
Twitter: @gm8arv



Re: RAMdisk?

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

-----Original Message-----
From: Hartmut Schulla
Sent: Thursday, August 6, 2020 3:53 PM
To: MSG-1@groups.io
Subject: Re: [MSG-1] RAMdisk?

Windows 64Bit
===============================

Perfect! Danke! I was planning on using this PC change to try the new client in any case.

David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@blueyonder.co.uk
Twitter: @gm8arv


Re: RAMdisk?

Ernst Lobsiger
 

All

On Thu, Aug 6, 2020 at 07:40 AM, Ernst Lobsiger wrote:
No idea whether something similar (software RAID) is possible under Windows 10.
O.K. software RAID seems to exist under Windows as well. If someone wants to try that he should have 2 identical HDDs though.

https://www.techradar.com/how-to/how-to-combine-multiple-hard-drives-in-raid-0-using-windows-10s-storage-spaces-feature

Ernst


Re: RAMdisk?

Hartmut Schulla
 

Windows 64Bit

-----Ursprüngliche Nachricht-----
Von: MSG-1@groups.io <MSG-1@groups.io> Im Auftrag von David J Taylor GM8ARV ?????????????? ???? via groups.io
Gesendet: Donnerstag, 6. August 2020 16:51
An: MSG-1@groups.io
Betreff: Re: [MSG-1] RAMdisk?

Hi David!
I don't use any RAM-Disk. New Tellicast Clients buffer the input in main memory by itself.
Regards
Hartmut
====================================

Windows or Linux, Hartmut?

David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@blueyonder.co.uk
Twitter: @gm8arv


Re: RAMdisk?

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

Hi David!
I don't use any RAM-Disk. New Tellicast Clients buffer the input in main memory by itself.
Regards
Hartmut
====================================

Windows or Linux, Hartmut?

David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@blueyonder.co.uk
Twitter: @gm8arv


Re: RAMdisk?

Hartmut Schulla
 

Hi David!
I don't use any RAM-Disk. New Tellicast Clients buffer the input in main memory by itself.
Regards
Hartmut

-----Ursprüngliche Nachricht-----
Von: MSG-1@groups.io <MSG-1@groups.io> Im Auftrag von David J Taylor GM8ARV ?????????????? ???? via groups.io
Gesendet: Donnerstag, 6. August 2020 16:04
An: MSG-1 group <MSG-1@groups.io>
Betreff: [MSG-1] RAMdisk?

Any current thoughts on:

- brand of RAMdisk software to use for Windows-10?

- amount of RAMdisk to use for:

BS alone?
BS + HVS-1?

I'm moving from a couple of old PCs to a more modern one.

Thanks,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@blueyonder.co.uk
Twitter: @gm8arv


Re: RAMdisk?

Graham Woolf
 

Hi David

I use SoftPerfect https://www.softperfect.com/products/ramdisk/ been using it for years

I use 4Gb for my Ramdisks but I do have 128Gb of Ram

Regards

Graham

1881 - 1900 of 31600