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wrote: I had a bad diode in the log amp in IF section of my HP 8566B that manifested in a similar manner. See < /g/HP-Agilent-Keysight-equipment/message/73067> for the thread. I have

I had something very similar on my 8568B. It turned out that one of the coax connectors on the A23 assembly was loose. The noise would come and go as I moved the coax cables inside the RF unit. The

Hello, Some more findings... It seems like my Arduino can talk to the instrument after all. Pulling REN low (active) makes it listen to commands sent to its listen address. However, with the REN

While I was working on my power sensor thing, I wanted to check the spectrum of some signal generator by using my 8568B spectrum analyzer. About one year ago, I had the problem that the analyzer had

Graeme, at one time I had one of these attenuators (NOS, if I recall correctly).? It's been years since I've seen it, but it might still be squirreled away somewhere in the shack.? And I don't

...and clearly I should have checked if Dick had replied while I was composing my own reply.? Apologies for the duplication of effort! - Jeff

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