Re: RF downconverting

Joerg wrote:
>
> Hello Michael,
>
> > I got lucky on this copy. I bought it for $2 about ten years ago from
> > a used book dealer at a flea market. I talked him down from $5. ;-)
> >
> That's a steal. For the 2nd edition I had to plunk down $89.95 plus tax
> at the Arizona State University bookstore :-(
>
> Regards, Joerg
>
> http://www.analogconsultants.com

I've found several other bargains, like a copy of the Radiotron
handbook for less than $5, but the Skolnik book was the best deal so
far.

I found it quite useful when I had to identify and make a replacement
feed for a poorly designed three meter C-band dish, after the owner
removed it for the summer to prevent theft and then threw away all of
the paperwork. This was pre-internet for me, and the other possibility
was a small outfit that built dual feed conversion kits for five meter
dishes for broadcast and CATV headends. It would have taken me weeks to
get the formulas from the designer, and he had a bad habit of
transposing equations when he wrote them out.

I wrote a quick program in Commodore Basic, entered the measurements
I had taken from the dish and it spit out the answers. I was within an
eighth of an inch from what I calculated, when I had the best signal.
--
?

Michael A. Terrell
Central Florida
.

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