Quote:
Originally Posted by Ohiosatman
Hello to everyone.
A quick question to the BUD experts,I just purchased a brand new never out of the box 10.5' Continental Satellite Systems Dish CX-105.Its all aluminum construction save for mount.A friend I work with use to sell them back in the 80's.and this one had been setting in his shop since 1986 unopened.$50.00 and an hour later its in my garage and should be going up in the next month.My question is this uses a pin hook to mount the LNB.How can I mount a BSC621-2 to it?Nothing else came to mount an LNB execept the hook.I have included 2 pictures to help out.
Thanks in advance....  |
Boy, that's stretching my memory. That doesn't look like what I use to have. My first dish had a "buttonhook" type arrangement for attaching the feedhorn, which was sort of like that, except I seem to remember that it came back around like an upside down " J " , but I might be wrong, and in any event I can't remember how the feed attached.
From looking at your pictures, I'd guess that the flat plate just bolted onto one of the holes in the scalar ring of the feed, and the circular end of the flat plate probably is supposed to rest up against the throat of the feedhorn. However the odds of the holes being in the right place for modern feeds, most of which are made for quad support arms, doesn't seem good. So you may have to drill an additional hole in the flat plate to match the holes in the scalar ring.
In theory though, the center of the feed should be directly in line with the other straight end of the pipe, which also seems like it might present a problem if the scalar rings of a modern feedhorn happen to be bigger than whatever feedhorn this was made for. Ie that pipe bends out to one side then comes back, in order to make room for the feedhorn, however it doesn't look to me like there is enough room to attach a feedhorn right at the flat plate, but maybe there is.
The nice thing about this type feed support is that it is easier to adjust the focal length than with the darn quad feed arms. With the quad arms, you have to adjust all 4 arms, or else adjust the throat inside the scalar rings, which isn't ideal since it changes the F/D characteristics. The bad thing about this type feed support is that it sometimes needs to be supported by guy wires to keep it centered properly.
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