[amsat-bb] Re: want this
vk2dag at bigpond.com
Sat Sep 9 08:52:16 PDT 2006
>The above was gleened from all the lateset gnashing. Is or does
>anyone know of work being done of 5ghz receive systems? I have a
>bunch of old C band receivers and C band LNA/LNB a 12 foot TVRO. I
>am not and engineer, but I can follow directions. Just get me
>started I would like to get ahead of the curve. 5ghz will be in
>our future, ready or not!
>73 Bob W7LRD
Well grab one and have a play with it. See what you come up with. I
have converted 12 GHz sat LNBs to 10 GHz by super gluing an extra puc
onto it's exiting puc, to change the Lo to 9 GHz. Played around with
the LNBs pre-amp and filters by cutting/adding pcb tracks. No reason
the same can't be done on C band LNB. You will be moving the LO
about 2 GHz might be bit of stretch but it's going to be fun to find out.
I did read a page about moding 12 GHz LNBs for 10 GHz ATV. Here is
one page that gives step by step mods and there are a couple of
http://www.qsl.net/pa3gco/zelfbouw/blauwkap/bluecap.html I have also
seen the same done for a 2.4 GHz transmit converter on drake type
downconverter which I can't find the page for at the moment.
C band LNBs are cheap to get and there are heaps of them out
there. So let's get at it!
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