Ka lnb ?

[zorrin]

Not knowing where in France Zorrin is I can't confirm if Saorsat transponders can be received but the point of the Labgear VKA2 as an initial purchase is more to confirm the reflector and other outdoor components function satisfactorily at the higher frequencies.

With the range available with a modern 2250MHz front end, with the VKA2 LO of 21.2 GHz scanning will go somewhat below Band B frequencies (the GTMedia Combo open end limits should offer slightly more).

Turksat 4A, should be feasible, as should HellasSat 3.

EsHail 2 should be possible by altering the depolariser location.

Astra 1L may also be observable if the 3dB loss can be overcome, or by removing whatever hardware is inside

https://ses-footprint-assets.s3.amazonaws.com/uploads/footprint_images/high_astra-1l_europe_ka_band_beam_M.jpg

we must have played the same games at the time of the "TELECOM" and "TDF" satellites...

 

[dreamsat]

With CrazyScan and the extension of the frequency range you can achieve a maximum of +/- 500MHz. The problem with this LNB is the relatively steep filter and if I use a dielectric, the poor decoupling of the linear planes. Either vertical is better or horizontal. If you don't dampen the filters properly, you can lose up to 10dB in the extended ranges. This conversion works much better with the Gilat LNB and, as mentioned above, I recommend that you read the posts about the conversions and then decide.

 

[Trust]

With the Gilat AN8004 freq. 21.400 - 22.000 you can receive channels from 7º and 16º

 

[zorrin]

With the Gilat AN8004 freq. 21.400 - 22.000 you can receive channels from 7º and 16º

View attachment 141894View attachment 141895

I will definitely come back to you soon. There are a lot of opportunities at the moment in France to get some for a few euros.

 

[John]

I will definitely come back to you soon. There are a lot of opportunities at the moment in France to get some for a few euros.

Interesting - please let us know if you do manage to source some 8004 or 8002 .

 

[zorrin]

Interesting - please let us know if you do manage to source some 8004 or 8002 .

At this time i only found AN8002, it will be ok for you ?

 

[John]

At this time i only found AN8002, it will be ok for you ?

I'm ok at the moment thanks but it might be useful for others on the forum

 

[zorrin]

Ok, i found one AN8004, do you know why there is BSS-L in blue marked on it ?



I also find some AN8002 with FSS-L in red...



this may be a factory setting for each part of the frequency band.

so according to the AN8002 manual it receives frequencies of: 19.2-20.2GHz This may mean that FSS-L is equal to 19.2-20.2GHz


And according to this table BSS would cover the frequencies of 17.3-17.8 GHz

I ound nothing about the "L"


In this case all AN8002 (FSS-L) cover always 19,7-20,2 Ghz
And some AN8004 (BSS-L) cover 17,3-17,8 Ghz
My Saorsat LNB cover 19,7-20,2 Ghz so is it a FSS

 

[John]

Ok, i found one AN8004, do you know why there is BSS-L in blue marked on it ?

View attachment 141903

I also find some AN8002 with FSS-L in red...

View attachment 141904

this may be a factory setting for each part of the frequency band.

so according to the AN8002 manual it receives frequencies of: 19.2-20.2GHz This may mean that FSS-L is equal to 19.2-20.2GHz

View attachment 141905
And according to this table BSS would cover the frequencies of 17.3-17.8 GHz

I ound nothing about the "L"

View attachment 141906
In this case all AN8002 (FSS-L) cover always 19,7-20,2 Ghz
And some AN8004 (BSS-L) cover 17,3-17,8 Ghz
My Saorsat LNB cover 19,7-20,2 Ghz so is it a FSS

Hmmm, don't really know - on all of my 8002 / 8004 models iv'e had or got iv'e never seen those Red or Blue stickers.
An 8004 BSS-L 17.3 to 17.8 GHz would be an interesting one that i wouldn't mind owning

 

[s-band]

I'm not sure that those stickers relate to FSS (fixed satellite service) or BSS (broadcast satellite service) as used in the early days. You need to look at the plates on the end of the ODU that have the connectors. All the 8002s I have seen are for <edit as corrected by zorrin> (19.2-20.2) and 8004s 21.4-22. The only one I have seen that covers below 18.2 is the much later multi-band AN8024
<edit> @John Our posts crossed.
I did have one, higher power, band B which had a different TX LO but don't remember the AN designation. It had the same LNB as the AN8002. The outer case was larger than the others.

 

[zorrin]

Hmmm, don't really know - on all of my 8002 / 8004 models iv'e had or got iv'e never seen those Red or Blue stickers.
An 8004 BSS-L 17.3 to 17.8 GHz would be an interesting one that i wouldn't mind owning

I'm only making guesses.

For you @John i must take AN8002 or AN8004 ?
I will take the BSS-L AN8004 anyway

 

[zorrin]

I'm not sure that those stickers relate to FSS (fixed satellite service) or BSS (broadcast satellite service) as used in the early days. You need to look at the plates on the end of the ODU that have the connectors. All the 8002s I have seen are for 18.2-19.2 and 8004s 21.4-22. The only one I have seen that covers below 18.2 is the much later multi-band AN8024

Don't see any AN8024...
I will definitely take the BSS-L AN8004

The AN8002 manual does not say like you ...

 

[s-band]

The AN8002 manual does not say like you ...

You are right, I got myself confused, I should have said 19.2-20.2

Here's an expensive 8004 Internet Satellite Antenna GILAT SkyEdge II Complete System FACTORY-NEW | eBay
Can't be sure but this looks like an 8002 Gilat Skyedge II Aries8 - modem, cables, tria and power supply | eBay

I've only ever seen the AN8024 sold for Russian services on Yamal etc

The 8004 is probably the best one as it covers 7E and 16E TV

 

[zorrin]

You are right, I got myself confused, I should have said 19.2-20.2

Here's an expensive 8004 Internet Satellite Antenna GILAT SkyEdge II Complete System FACTORY-NEW | eBay
Can't be sure but this looks like an 8002 Gilat Skyedge II Aries8 - modem, cables, tria and power supply | eBay

I've only ever seen the AN8024 sold for Russian services on Yamal etc

The 8004 is probably the best one as it covers 7E and 16E TV

The AN8004 (BSS-L) will cost me 30 Euros...
But i need two of them...

 

[zorrin]

@zorrin , this question should have been asked to answer your first #1 post because you might want to consider cancelling your order for a Saorsat lnb.
"What type of content exactly do you want to view from Ka band transmissions ?". There are four different Ka 'Band' lnb ranges, usually one lnb per band range, a very very expensive Ka multi band is available. If it's the same as the posts you see on the forum showing domestic type channels, usually from 16East , 7East or 42East Ka transmission frequencies then a Saorsat lnbf is no use to you unless Eutelsat activates one or more of the Ka 'spot' beams 21 to 34 to illuminate you in the region of France that you are in, but i can't remember seeing any posts on the forum talking about seeing anything from these 'spot' beams.
A Saorsat lnb straight out of the box covers 19.7 to 20.2GHz Upper Band B Circular polarity, the channels from Eutelsat 7 & 16East that are shown on the forum are within 21.2 to 22.2GHz Band D Linear polarity , 42East Turksat Ka channels are Circular polorised and are in Band A frequency range 18.2 to 19.2 GHz range .
So as you can see, Ka band reception is not an easy 'plug & play' system with a 'one size fit's all' solution and iv'e probably missed out other information that might be relevant to the subject that will be picked up on by others hopefully.
Hope this helps a bit & good luck .
** Edit - just seen ozumo post whilst i was typing .

@John if I follow you the Ka band is cut now like this (Rx part) ?
Ka A : 18.2 - 19.2 GHz
Ka B : 19.7 - 20.2 GHz
Ka C : 17.5 - 21.5 GHz
Ka D : 21.2 - 22.2 GHz

 

[John]

@John if I follow you the Ka band is cut now like this (Rx part) ?
Ka A : 18.2 - 19.2 GHz
Ka B : 19.7 - 20.2 GHz
Ka C : 17.5 - 21.5 GHz
Ka D : 21.2 - 22.2 GHz

For us enthusiasts we normally use these receive ranges and are usually what's printed on the likes of Norsat / XMW / SMW and others lnb's to cover the particular band.
Then you get such as Saorsat / Hughes / TwoWay / Gilat Anatel who just use a certain part of what ever band.
There is also a Ka band that covers 17 - 18GHz.

Ka A is normally stated as 18.2 - 19.2 GHz
Ka B is normally stated as 19.2 - 20.2 GHz
Ka C is normally stated as 20.2 - 21.2 GHz
Ka D is normally stated as 21.2 - 22.2 GHz

 

[zorrin]

I found the yellow one...

 

[s-band]

I found the yellow one...

Can you get pictures of the backs? They should give all the frequencies like this:



Some manufacturers are different but below are the Norsat band designations

 

[zorrin]

All AN8002 have the same frequency on them : 19,2-20,2 Ghz
For the AN8004 i will tell you next week.

But now it's clear :
All AN8002 are taged FSS and some have L or R, for the polarisation i think.
All AN8004 are taged BSS and ad this time i only found L version.

 

[Channel Hopper]

I'm not sure that those stickers relate to FSS (fixed satellite service) or BSS (broadcast satellite service) as used in the early days. You need to look at the plates on the end of the ODU that have the connectors. All the 8002s I have seen are for <edit as corrected by zorrin> (19.2-20.2) and 8004s 21.4-22. The only one I have seen that covers below 18.2 is the much later multi-band AN8024
<edit> @John Our posts crossed.
I did have one, higher power, band B which had a different TX LO but don't remember the AN designation. It had the same LNB as the AN8002. The outer case was larger than the others.

It's not about the ODU itself but the way they can be utilised / approved for terrestrial use once additional isolation is installed.

I have the document somewhere in the office, it's more to do with point to point systems than uplinking to a geostationary satellite.