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Please correct me if I'm wrong, but looking at Dick Benson's description of his MATLAB application (as described in the PDF included with his MATLAB files) and comparing his features with those in

Yes, I am aware of John's excellent work and use it often. This offering complements his work. Dick

KE5FX (aka John Miles) has a program to do this (SSM.EXE) as part of his GPIB toolkit http://www.ke5fx.com/gpib/readme.htm and http://www.ke5fx.com/gpib/ssm.htm for details. Dave Sent: 19

Tobias, You will see, not easy task to linearze and to compensate this kind of detector if you need a accuracy. 1. I sugest you to use some of SPDT switches (well matched, small leakage and small

Greetings, ?There appears to be a continuous wave of decommissioned Agilent E4406A "VSA Series Transmitter Tester" boxes hitting eBay.? ?They have a lot of bang-per-buck but have some limitations

Hey Jeff, I didn't see your message, it was not in the other thread! But thanks anyway, I had the same idea as you suggested - I will soon receive some sensors with a blown thermocouple, and there I

Hi all, I made some further progress. I discarded my previous prototype and made a new one using better JFETs, this time the 2N4856A. According to its datasheet it is especially designed for chopper

Steffan... Maybe I missed you saying so, but with the Keysight IOLibraries installed the 82357A/B should be essentially transparent to you. Connection Expert will let you assign it a name such as

Thermocouple detectors are definitely more linear, RMS, and have been around very long time. Some of the peak power meters use the diode versions. These typically have lower dynamic range. The HP8900D

A long time ago, I remember an eBay seller offering NOS HP replacement thermocouples, with calibration labels, at incredibly low starting bid prices.? I really don't think he knew what he was

Update I figured out a way to make the 8642B stop reporting A6 counter fault in FM mode when I go from internal to external dc. I turn on AM modulation and set it to internal then turn on FM and

wrote: "parkertest" on ebay seem to have bought a lot of replacement thermocouples and are selling them at $7200 obo for 20! They will also repair an 8481A for $465 or sell a refurbished one for

Hi Jeremy, Thanks for your suggestions. I've searched without success so far. Can't find a non-working 606B at this time. I'll keep monitoring. Hi Kim, Thank you for the offer of the unit. I'd be most

A local friend and I have done a lot of work on exactly that. The idea has great potential, but there are some dragons hiding. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

I’ve long thought about using one of the Linear Tech or Analog Device RF sensor ICs as a front end to an HP power sensor head with blown thermistor/diode. They have a great frequency and

Hello, Short update. Just recalling I had an Arduino setup for GPIB-USB (many thanks to Emanuele Girlando!). It works using that one to do a ++read and get a response, but then I don't seem to be

Mike almost all of the 848x series power sensor heads use a thermocouple and not a diode. The replacement thermocouples were at one time available? directly from HP/Agilent. They were crazy

I've been following this discussion about diode power sensors. I assume the diode sensors fail because of blown diodes form overload. Has any repaired the faulty sensors by replacing diodes? Mike

Hello, Thanks for the suggestions. I tried to figure out how to do low-level communication, but don't seem to find any way.? I hope I'm just missing something trivial here. If anyone has an example

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