Channel master c120 feed horn wanted

C

Chris James

Member
My Satellite Setup
None
My Location
Southampton
Hi
I’m in need of a c120 feed horn for channel master dish
Bought one from eBay but it got lost
Anybody can help be great
Thanks
 
A long neck universal LNB will be fine. Inverto IDLR-SINL42-EXTND-OPP Single for a tenner on Amazon, or an Inverto Black Ultra twin for about £20 would work well.
 
ozumo said:
A long neck universal LNB will be fine. Inverto IDLR-SINL42-EXTND-OPP Single for a tenner on Amazon, or an Inverto Black Ultra twin for about £20 would work well.
Click to expand...
Thanks I’ll look into that it’s just I like the look of the c120 but guess they are hard to find
 
ozumo said:
A long neck universal LNB will be fine. Inverto IDLR-SINL42-EXTND-OPP Single for a tenner on Amazon, or an Inverto Black Ultra twin for about £20 would work well.
Click to expand...
All that R+D and you believe a universal feed can compete ?
 
Channel Hopper said:
All that R+D and you believe a universal feed can compete ?
Click to expand...
I have a CM feed horn which came with a couple of SMW singles, both were comfortably out performed by an Inverto Black Ultra.
 
ozumo said:
I have a CM feed horn which came with a couple of SMW singles, both were comfortably out performed by an Inverto Black Ultra.
Click to expand...
Same findings here ..... on my Channel masters - ...... not by such a big margin on the 1.8 ... but on 1.0 metre and 1.2 metre - the black ultra and a some other modern l.n.b.f,s were notably better than the C.M. feed / C120,s
 
sad but true - i have a Smart Titanium LNB to clamp \ convert onto CM feed horn as a test
 
nelson_b said:
Same findings here ..... on my Channel masters - ...... not by such a big margin on the 1.8 ... but on 1.0 metre and 1.2 metre - the black ultra and a some other modern l.n.b.f,s were notably better than the C.M. feed / C120,s
Click to expand...
As per the other feedhorn thread, I will take some dimensions this weekend, the feeds that I had were for receive and transmit and may have a waveguide that is tuned for uplink frequencies. Receive characteristics in the 11-12GHz band would be less important, opening the guide diameter by 1mm may help improve things.
 
Just did a quick test on 1.9 east 90cm CM 12168V 30000:
Inverto Black Ultra Twin: 9 - 9.5db
SMW Single LO 10.750 + CM feed horn: 10db

Then it started raining. The SMW + feed required an increase in elevation. Will have to test some once the weather improves.
 
ozumo said:
Just did a quick test on 1.9 east 90cm CM 12168V 30000:
Inverto Black Ultra Twin: 9 - 9.5db
SMW Single LO 10.750 + CM feed horn: 10db

Then it started raining. The SMW + feed required an increase in elevation. Will have to test some once the weather improves.
Click to expand...
Just tested again with clear sky:
1.9 east 90cm CM 12168V 30000:
Inverto Black Ultra Twin: 11.6db
SMW Single LO 10.750 + CM feed horn: 10.3db

This is more like how I remembered it was.
 
Right so got a c120 feed horn and smw LNB
Thing it doesn’t fit in the feed arm bracket am I missing something
 

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The black adapter, dimensions in this post:

Channel master smc 1.2m restoration

Hi all, I just started to restore a 1.2m Channel Master. Certainly installed by a "professional". it is an equatorial mount which was used for a fix installation. the fixing spacers are missing and nothing really prevented that in high winds the antenna turns ... cleaning, sanding, primer and...
www.satellites.co.uk www.satellites.co.uk
 
yeah, the 40mm adapter.

i have this feed horn and adapter i need to shift.
 
Just remembered I may have a spare that came with the dish Dggrr gave me. I'll check tomorrow.
 
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