[ARC5] Zero Beat Question
Mike Everette
radiocompass at yahoo.com
Thu Jul 7 17:02:47 EDT 2016
The best ARRL Handbooks are those edited by George Grammer; if I recall correctly this would include editions up to 1969 as Grammer retired circa 1970.
The 1942 "Radio Handbook" published by Editors & Engineers is plentiful, as it was used as a text in many WW2 military radio schools. It's an excellent reference. I'd consider it essential to have one of these along with a 40s-50s-60s ARRL Handbook on the shelf.
ARRL Handbooks up till the mid 50s do have a slightly different approach to transmitter and receiver theory than later ones; this is partially due to the rise of SSB in the late 50s.
73
Mike
WA4DLF
From: Richard Knoppow <1oldlens1 at ix.netcom.com>
To: arc5 at mailman.qth.net
Sent: Thursday, July 7, 2016 4:26 PM
Subject: Re: [ARC5] Zero Beat Question
I am always glad to see questions that are relatively elementary
of the sort that one thinks "why, everybody knows that", but when I try
to explain it decide that perhaps its not obvious at all. In fact,
sometimes I discover _I_ don't really understand something I thought I
did. I think sometimes older books had better explanations than newer
ones, perhaps because there was less to cover. A good source is Pete
Millet's site
http://tubebooks.org this has all sorts of stuff on it including
several ARRL handbooks and some good fairly elementary electronic theory
books. Do not sell the old ARRL handbooks short; their introductory
theory chapters are usually well written and are aimed at those who want
and need practical information. The "Radio Handbook" edited by William
I. Orr is also excellent. Modern radios with all their digital functions
have become rather un-intuitive so it is sometimes enlightening to go
back and see how all this was done with analog. Never ignore the
fundamentals.
On 7/7/2016 12:41 PM, Bill Cromwell wrote:
> Hi Wayne,
>
> Richard nailed it down but your question suggests there may be enough
> holes in your experience to not fully grasp what he has said. I sure
> wish I could get some of the people who are asking the questions like
> this in my shop/shack for even just a few minutes. We could make it
> crystal clear in just a few minutes in front of radio on the air and
> especially with some computer software available to give us a panadapter
> display - aka waterfall. I'm sure Richard would like to do that too.
>
> Meanwhile we can try to answer any questions that remain from Richard's
> explanation.
>
> 73,
>
> Bill KU8H
>
--
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL
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