From: "Michael A. Terrell"
Subject: Re: Wavetek Sam I used as RF spectrum analyzer??
Date: Sat, 12 Oct 2002 23:40:56 -0400
Organization: Do I have to? Well, Ok. If you insist!
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Jim Yanik wrote:
> "Leon Heller" wrote in
> > "Jim Yanik" wrote in message
> > news:Xns92A56E2DF142jyanikkuanet@188.8.131.52...
> >> It's not going to be nearly as good as a spec analyzer. You can see
> >> spurs and harmonic and non-harmonic distortion with a real SA,and
> >> better accuracies. The SAM is basically a freq-tuned voltmeter.Made
> >> for 75 ohm impedances,that's what cable is. You could use a 50-75 ohm
> >> pad,but
> > accuracy
> >> will suffer.
> >> (I used to work for the company that Wavetek bought,that made the SAM
> >> meters. Mid-State Electronics, ;-) )
> >> I'd buy one of those inexpensive SA's before I'd spend any money on a
> >> SAM,if you want a RF analyzer.
> > Sounds like a TRF version of a wave analyser. This was the precursor
> > of the SA, a wide-range receiver with a voltmeter on the output..
> > 73, Leon
> > --
> > Leon Heller, G1HSM
> > email@example.com
> > http://www.geocities.com/leon_heller
> The SAM's from Wavetek are for cable company's field techs to monitor their
> systems from pole to home;they measure signal strength,sig/noise ratio,IMD.
> 75 ohm inputZ. The early ones were quite crude,handmade.
> Jim Yanik,NRA member
> remove X to contact me
Also, they are getting old. Most weren't treated very nice by the
installers or techs. They would get done with it and just throw them in
the back of their truck with their hand tools. Quite a few died a nasty
death falling out of a moving truck.
Michael A. Terrell