Re: Dummy asks about building first RF project...
From: Dave (db5151_at_hotmail.com)
Date: 08/02/04
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Date: Sun, 1 Aug 2004 23:40:08 -0500
"Fred Stevens" <fred_stevens@hotmail.com> wrote in message
news:d16300db.0408011341.2a7a9232@posting.google.com...
> "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.
COOL! Thanks for that link, Fred. I will definetely check that one out.
I'm going to print it right now, and start reading it in bed in a few
minutes. Much appreciated.
Dave
db5151@hotmail.com
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