Raven feedhorn, Inverto LNB on 1.2m Channel Master

[Martyn]

I managed to pick up a 1.2 meter Channel Master dish that had been in use on top of a building. The contractor remodeling the place was nice enough to spot my Craigslist ad and give me a call.

As I am already getting just about everything I need on ku from my 1m Winegard, I'm planning to put a C-band LNB on the Channel Master and use it for 99w. I've already had some success on 99w and the SatMex birds on the 1m dish, so I think the 1.2m should be able to perform.

The question is getting the LNB on the dish. I did a lot of reading around and saw a lot of home mods to get the LNB on there. But I also came across this solution from the UK:

http://www.satellitesuperstore.co.uk/raven_andrews_channel_master_feedhorn.htm#ravensingle

Is anyone using this with a C-band LNB? And any recommendations on an LNB, or am I better off trying to get my existing LNB on the dish?

I'll be in the UK in a couple of weeks so can save on shipping if I decide to get it. Any thoughts?

I already have a DMX242, but it looks pretty cheaply made.

Thanks in advance for any feedback.

 

[primestar31]

That feedhorn is only good for KU signals. It will NOT pass C-band frequencies.



You will have to modify the lnb arms holder on the Channel Master dish, or you won't be able to fit the larger c-band lnbf in place without it sitting too high up.

 

[Martyn]

Thanks. I had just realized the feedhorn was band-specific when I saw your message pop up.

I'll work on getting the modifications done. The two side arms swivel lower, so perhaps I can rig up a new bracket that sits a little lower and allows the C-band LNB to be in the right place.

Thanks again!

 

[Anole]

Yes, you would need to make sure the C band LNBF was at the focus, something a lot of people overlook in their rush for a mini-BUD,
And you'd want a conical scalar for best results, an item readily available in North America.
Shop around; a member might have a spare.
Some folks are currently having trouble on 99wC with their small dishes.
And recently getting more interference from adjacent birds or weaker signal on 99C.
.
I'm not really mini-BUD sympathetic. ...but if I were...
I have spare SatAV C2's which would be my first choice.
And as soon as they become available, I would also try the new PLL C band LNBF:
http://www.titaniumsatellite.com/news.html
.
If all you really want is 99C, this might be the only time I'd suggest a 6'er.
Just so long as you don't buy a new one!
?But any common 8' BUD would give more future potential.

 

[Martyn]

Thanks Anole, My problem right now is space and the landlady. She's been very good about my satellite dishes and antennas, but an 8-footer might be too much for her and the neighbors.

I'm hoping to move sometime in the next year and then I'll be checking out every house I find on dishpointer.com before I go and see them

I understand these dishes are undersized for the job, but are the Lyngsat dish size calculations all wrong? Looking at this one, for example, http://www.lyngsat-maps.com/footprints/Galaxy-16-C.html , it seems an 80-100cm dish is fine across almost all of the country. That's either wrong or it doesn't take into account co-satellite interference.

 

[Anole]

Sometimes it's more than signal levels

I appreciate your restrictions.
Just hate to see people disappointed.
Here is a good example; read this short thread:
http://www.satelliteguys.us/threads/317880-99w-c-band
And you'll see what I mean
??.