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Hi, we have a E4440A 26 GHz spectrum analyser at work. Last time I used it was a year ago, and all was fine. Last week a colleague moved it to a different lab and it wouldn't turn on. The standy LED

A simple task... But it is NOT IEE488.2 compliant, so will not respond to such things as *IDN? etc.? (In fact, traffic like that can totally mess it up at times, as can other automated tricks to

Hi, Red Herring alert! FWIW I use Prologix interfaces (with the 'auto-read-after-write' feature disabled) and program using mostly AutoIT or EZGpib/Pascal s but I don't have to treat the 436 or 438

I am making a trial run of few PCBs and I have a E4425B with "250MHz..350MHz unlock problem" to try it on. I will document the process as I do it. Cheers Leo

Ji Roland, I have one of these sig gens and like it a lot. I suspect your problem might be due to the not very intuitive keying sequence for setting modes frequencies and levels. I know it has puzzled

Hello, Is this working with the 82357, it would be a great starting point. Although I just don’t understand why interactive IO doesn’t work. Has anyone experienced differences between

Great job Leo Certainly interest here for a drop in PCB, gerber files, the copies of the schematics you worked out the existing functions or even the chip number for the Hittite prescalar:- basically

some good reading here. https://www.boonton.com/forms/principles-of-power-measurement-form Easier to search for "boonton principles of power

I have such an animal here a GM 460B with that TFT hermocouple. It is an ancient beast. They got bought up by Marconi down the line. https://patents.google.com/patent/US3384819

General Microwave used to make thinfilm 50 ohm thermocouples for their power meter sensors. I don’t know if they are in business any more. Regards, John Burgar Sent: Monday, November 19, 2018

The article "Very-Low-Level Microwave Power Measurements" shows why a diode sensor is good for low levels, not 0dBm, so it's good for measuring low power chip radio output with a receiving antenna a

No You cannot have a 50 Ohm Thermocouple, a Thermocouple is effectively zero Ohms. 73 George G6HIG?

http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1975-10.pdf has info and diagram of sensor internals.

Greetings. For those who use the HP E4406A VSA, I wrote a python script that concatenates several 10MHz spans to make a wider spectrum plot. The tool uses TCP/IP to commuicate with the E4406A, so no

Correct, SSM is just an alternate display for the analyzer, intended to passively record and replay trace data based on the current control settings. Dick's program is an alternative way to access

Is there any other company on the planet who produces 50 OHM thermocouples? It seems odd that such a thing is unobtainable.

Hi Staffan The physical layer for IEE-488 itself is essentially unchanged from the original.? 488.2 deals more with the messaging protocol. This is where all the "universal" commands originated (all

Hello, Many thanks. Notice that I replied to your direct mail. I don't think the problem lies in the 436, but rather in how the USB dongle 82357 performs communication. Don't know if the GPIB

Hi Saffan, I sent you in PM some military manual for 436A. Go from page 3-18 onward, there is about HPIB communication. Milan

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