Krishnan Damodaran wrote:
> Hi all,
>
> We are planning to buy a Network Analyzer. We want to use it only
> for tuning the probes, nothing more. So we would like to know
> which make or model will be more economical and good for this
> purpose.
> Can somebody help us in this regard..
>
> Thanks
> Damodaran
>
Generally speaking, a spectrum analyzer would be less expensive than a
network analyzer. You just need a spectrum analyzer with tracking
generator and a small directional coupler. Our spectrum analyzer is a
Marconi 2380/2382 that we bought back in the late 80's and still works
fine. Of course this one isn't made anymore, and I'm not up on current
models or prices. If you're not doing probe design, I think a network
analyzer is overkill. In fact, the spectrum analyzer might be
considered overkill, but it's an easy way to tune probes if you have the
money. In the old days people use to put together a setup with an
oscilloscope, directional coupler, and WaveTek sweeper. This was very
popular with NMR people, but I think those WaveTeks are now hard to find.
BTW, here's info on the directional coupler that we use:
Mini-Circuits ZDC-10-1
It has three BNC connections, labelled In, Out, and CPL.
IN connects to your probe; the tracking generator output connects to
CPL; Out connects back to the spectrum analyzer.
-Bill-
-------------------------------------------------------------
Bill Gurley, Technical Director |
Department of Chemistry | Consider Linux and
Univ. of Tennessee, Knoxville | Open Source Software!
Received on Thu Jun 26 2003 - 12:00:45 MST