KA Band Dish Sizes

[Archive-8]

I tried yesterday to put my ISS 1m dish fixed on 19.2°E Ka band (18ghz)

And got nothing at all, the tbs card resisted nothing. Put it temporarily on my 1.25 and I had enough signal.

Finally fitting it on my 1.5, 4° of prime. And is working really well.

Then I tried to put the 21ghz ku/ka lnb on the ISS 1m and yes it can tune in the ka band with a very strong signal, but the picture keeps braking up and is unwatchable.

So what is a real world size of dish needed for watchable ka?

Or is my ISS 1M a poor performing dish?

 

[zorbua]

I only use my 1.5. That's the best I can make out with, though bigger would be better I suppose.

 

[Llew]

For me, the Triax TD88 is adequate for 99% of the currently available Band D channels from 16E, 7E and, when active, the feeds from 5E. That's with the Inverto Ka/Ku LNB., or the XMW.

For Band A Newsnet feeds on 19E, the Triax 1M is fine, particularly now using the Hughes LNB - subjectively a better performer than my Norsat Band A LNB.

The Hughes lump goes on the TD88 when sniffing for anything available on Band B or, at a stretch, the lower regions of Band C.

Chris, I'm surprised you don't have a lot of luck with a 1M on 19E, it's usually OK for Newsnet on my TD88, except for a few of the weaker feeds.

 

[Archive-8]

For me, the Triax TD88 is adequate for 99% of the currently available Band D channels from 16E, 7E and, when active, the feeds from 5E. That's with the Inverto Ka/Ku LNB., or the XMW.

For Band A Newsnet feeds on 19E, the Triax 1M is fine, particularly now using the Hughes LNB - subjectively a better performer than my Norsat Band A LNB.

The Hughes lump goes on the TD88 when sniffing for anything available on Band B or, at a stretch, the lower regions of Band C.

Chris, I'm surprised you don't have a lot of luck with a 1M on 19E, it's usually OK for Newsnet on my TD88, except for a few of the weaker feeds.

I have a td88, & a copy td88 I could try them also. I haven't given up yet with the 1m as its only news net I am really after.

I was also wondering if any one else had used ISS dishes for ka band, and if so the comments.

 

[Captain Jack]

Is the ISS dish solid or perforated? Ka doesn't work on perforated dishes due to wavelength size - it just disappears through the holes.

 

[Archive-8]

Is the ISS dish solid or perforated? Ka doesn't work on perforated dishes due to wavelength size - it just disappears through the holes.

It's a solid dish.

 

[Vipersan]

Its possible the feed is mismatched to the dish Chris ..
Resulting in poor illumination.
Though I would expect ..something on a 1m ..?
Llew gets away with a TD88 on account it is a very good match ...and is less fringe than you or I ..
what channels were you trying for specifically ?
if channels on Ka D ...then you should get results on 7E with a 1M ....but 16E could indeed be tricky..

News channels ..KaA would be extremely borderline..on a 1M..though the Racing feed should be do-able
rgds
VS

 

[Archive-8]

Its possible the feed is mismatched to the dish Chris ..
Resulting in poor illumination.
Though I would expect ..something on a 1m ..?
Llew gets away with a TD88 on account it is a very good match ...and is less fringe than you or I ..
what channels were you trying for specifically ?
if channels on Ka D ...then you should get results on 7E with a 1M ....but 16E could indeed be tricky..

News channels ..KaA would be extremely borderline..on a 1M..though the Racing feed should be do-able
rgds
VS

I had intended the 1m to act as a "newsnet" dish on 19.2°E

Yes I do get a very strong signal with the ka/ku lnb on 7°E only thing with that is my dr hd just keeps pixelating and makes it unwatchable. But I suspect there is another problem with the box it's self.

When I have a few hours I will go and have a tweek with the dish and lnb, and see what I can do.

 

[Archive-8]

Just a thought but I have the lnb on the omt and feed horn.

I did try and and have a look about online to find a ka feed horn like @scopus and @Feedsat_DXer

@Llew what feed horn do you use on the td88 please?

 

[Anonymous_1]

Just a thought but I have the lnb on the omt and feed horn.

I did try and and have a look about online to find a ka feed horn like @scopus and @Feedsat_DXer

Sources Ka
The cheapest place in Europe fr this item . (English Spoken)

 

[Llew]

@Llew what feed horn do you use on the td88 please?

You mean with the KaKu LNB? It's the feedhorm that's part of the LNBF. For the XMW LNB, I use a feedhorn removed from an Inverto Saorsat LNB.

On the 1M dish, I use an XMW FD9000 feedhorn on the Hughes LNB., the one Feedsat points to. An excellent match.

 

[Archive-8]

I will see if I can order one then :-) can I do it via his website or do I need to email him? Please.

 

[Llew]

Feedsat should be able to help with the details from that site Chris. Mine came from XMW in Korea when we ordered the XMW LNB.

 

[Trust]

Feedsat should be able to help with the details from that site Chris. Mine came from XMW in Korea when we ordered the XMW LNB.

Sources Ka
Thats the one I think

 

[Archive-8]

Sources Ka
Thats the one I think

I am struggling with the website, will take a look after diner, on a PC.

 

[Anonymous_1]

@Chris1979 : if you need help to order the ka source, let me know in private, I can help you, the manager of this online shop is a good friend and a real professional (maybe the last we have in France) not a box reseller....

 

[Archive-8]

@Chris1979 : if you need help to order the ka source, let me know in private, I can help you, the manager of this online shop is a good friend and a real professional (maybe the last we have in France) not a box reseller....

Thanks I will give it a go in a bit on a PC, as I am on iPhone at the moment.

But thanks for your offer of help :-)

 

[scopus]

@Chris1979 : if you need help to order the ka source, let me know in private, I can help you, the manager of this online shop is a good friend and a real professional (maybe the last we have in France) not a box reseller....

I have had two feeds off him, speaks good english, great to deal with.....

 

[Archive-8]

Finally managed to order a ka band feed horn. so hopefully I will have it in a few days.

Thanks guys for your help.

@Captain Jack do you still need feed horns for your pair?