Re: Dummy asks about building first RF project...
From: Fred Stevens (fred_stevens_at_hotmail.com)
Date: 08/01/04
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Date: 1 Aug 2004 14:41:58 -0700
"Dave" <db5151@hotmail.com> wrote in message news:<cei2fp$l67@library1.airnews.net>...
> Some time back I located the schematic (and a few of the previous builder's
> notes) for an MFJ 1020A antenna tuner/RF amplifier. So I went out and
> bought all the parts, and am considering spending some time actually trying
> to build this puppy. Only I know nothing about working with RF, so I am
> asking about the sorts of things I should watch out for and try to avoid. I
> expect proper shielding is paramount, and keeping the length of component
> leads short is next. What else is there? I would really like for this
> thing to work as well as possible, and I don't mind spending time in that
> endeavor. I am planning on hooking it up to a piece of coax connected to a
> random-wire antenna for shortwave DXing. I am using coax to shield against
> the noise from an AC compressor midway between the radio and the antenna.
> What else would be good to do, or watch out for?
>
> Apologies if any of this sounds really dumb, but computers and associated
> peripherals is what they used to pay me to work on.
>
> Many thanks,
>
> Dave
> db5151@hotmail.com
Hi Dave,
I recommend that you read the Linear Technologies Application note
number 47 by Jim Williams - its a "must read" for RF beginners.
You can find it here:
http://www.linear.com/pub/document.html?pub_type=app&document=50
Regards,
Fred.
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