I have a 1.2M Offset Dish (and several 1.0M ones) that I wanted to use for C Band but the LNBF mount is way too small. So if I am going to have to fabricate something, I was thinking about converting it to Prime Focus.
Is it even possible?
It is a very heavy, Channel Master Fibreglass Dish with currently 3 arms at the bottom.
An offset dish is actually not 100% round but a bit oval. As an offset dish is technically a wedge from a true round prime focus dish, it can't be converted and receive proper signal as it is designed to receive signal with the LNBF mounted at an angle.
why sell it? the 1.2m channelmaster is a fine antenna.
I am thinking if ya sell it, you may wish you hadn't some day.
If ya sell anything, sell the 1.0m antennas.
Technically, an offset is superior to a prime focus one.
The big difference is that offset antenna cast no shadow. aka there should be nothing blocking the signal to the LNB. Also, offset dishes should be better for snow as their more vertical.
The only advantage I can see for prime focus dish would be for elevations <10 degree.
If it is what I am thinking, is this the manual for it??
http://viasatelital.com/manuales/channel_master/channel-master-type-120.pdf
There may be some part numbers you can reference in there.
I may be mistaken, but I think Channel Master sold the satellite dish business to a company named ASC some time ago.
ASC still makes commercial dishes and feeds today.
I am not 100% sure, but I think these are the same or similar made by ASC with someone else's name on them. May be some part numbers to look for (2nd hand locally, ebay, whatever) in here.
I am first going to see if I can change the LNBF mount to accept a "C" Band LNBF, failing that I will just pop down to Oakville and grab a large Dish from Dr Sat.
I have a Channel Master 1.2 m dish with a C1 PLL on it. I made a custom bracket out of parts readily available in Home Depot. I'll post a photo of it later. It performs better than I expected on C band.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Canadian TV, Computing and Home Theatre Forums
1.7M posts
115K members
Since 2001
A forum community dedicated to Canadian TV, computing and home theatre owners and enthusiasts. Come join the discussion about home audio/video, displays, troubleshooting, styles, projects, DIY’s, product reviews, accessories, classifieds, and more!