I'd buy that myself if it works but I overspent this month. I would however want to see some pics of it powered up before I bought it. I hardly ever buy or bid on equipment if there not under power when the pic is taken. If I'm interested, I have the seller to e-mail the pics. If they wont, I dont buy it. That would give them the excuse that it tore up over shipment.

Best,

Will


----- Original Message -----
From: "David Kirkby" <david.kirkby@onetel.net>
To: "amps@contesting.com" <amps@contesting.com>
Subject: [Amps] Cheap network analyser on eBay
Date: Sat, 25 Jun 2005 00:44:47 +0100

> 
> There is on eBay at the minute what appears to be a very cheap HP
> network analyser, which I guess would double as a cheap power meter too.
> 
> The "buy it now" is under $75. Cheaper than the amateurish instruments
> that give "some idea about the magnitude of the impedance".
> 
> It's an HP 3570A, which the tucker web site give a bit of info
> 
> http://www.tucker.com/java/jsp/doorway_partnoH-P3570A_invid2370.htm
> 
> although I think the max frequency is 13MHz, not 500 as stated there.
> Hence the frequency range is a bit limited.
> 
> Here's a bit more info.
> 
> http://www.tucker.com/images/images_spec/00004350.pdf
> 
> The unit on eBay has option 004, which is the GPIB interface, so you can
> read (and often set) the instrument via a computer.
> 
> The seller is definitely in what I would call the "doggy" category.
> Although he has over 1000 feedbacks, there are a lot of negatives (94.8%
> positive).
> 
> A friend tells me the model number indicates it is likely to be very old.
> 
> Anyway, here's the link to the eBay site.
> 
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=97192&item=7525812615&rd=1
> 
> It's clearly not without its risks, and I don't know much about it, but
> on the face of it, the unit would seem quite cheap and useful. But
> perhaps someone knows otherwise.
> 
> You could extend the frequency range with mixers and a couple of sig
> gens, but then calibration would be much more difficult.
> 
> PS
> If you do buy it, do your homework. Don't blame me if it needs an XYZ
> that is impossible to obtain, or if its dead and the seller will do
> nothing about it.
> 
> --
> David Kirkby,
> G8WRB
> 
> Please check out http://www.g8wrb.org/
> of if you live in Essex http://www.southminster-branch-line.org.uk/
> 
> 
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps


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