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Re: Farnell PSG 1000
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
By g3xyv · #92723 ·
Re: Readings from 436A power meter using 82357B USB-GPIB?
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
By Staffan · #92722 ·
Re: Synthesizer module in ESG series E4435B
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
By Dave Ireland · #92721 ·
Re: A homemade diode power sensor for HP meters
some good reading here. https://www.boonton.com/forms/principles-of-power-measurement-form Easier to search for "boonton principles of power
By RFI-EMI-GUY · #92720 ·
Re: 50 ohm thermocouples was RE: [HP-Agilent-Keysight-equipment] Issue with homemade diode power sensor for HP meters
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
By RFI-EMI-GUY · #92719 ·
50 ohm thermocouples was RE: [HP-Agilent-Keysight-equipment] Issue with homemade diode power sensor for HP meters
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
By John E. Burgar · #92718 ·
Re: A homemade diode power sensor for HP meters
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
By John Griessen · #92717 ·
Re: Issue with homemade diode power sensor for HP meters
No You cannot have a 50 Ohm Thermocouple, a Thermocouple is effectively zero Ohms. 73 George G6HIG?
By george edmonds · #92716 ·
Re: A homemade diode power sensor for HP meters
http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1975-10.pdf has info and diagram of sensor internals.
By Andy ZL3AG · #92715 ·
Re: E4406A MATLAB Application
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
By ve2zaz · #92714 ·
Re: E4406A MATLAB Application
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
By John Miles · #92713 ·
Re: Issue with homemade diode power sensor for HP meters
Is there any other company on the planet who produces 50 OHM thermocouples? It seems odd that such a thing is unobtainable.
By RFI-EMI-GUY · #92712 ·
Re: Readings from 436A power meter using 82357B USB-GPIB?
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
By Daun Yeagley · #92711 ·
Re: Readings from 436A power meter using 82357B USB-GPIB?
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
By Staffan · #92710 ·
Re: Readings from 436A power meter using 82357B USB-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
By Milan Vasic · #92709 ·
Re: Intermittent noise on HP 8568B
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
By Sigur?ur ?sgeirsson · #92708 ·
Re: Intermittent noise on HP 8568B
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
By Orin Eman · #92707 ·
Re: Readings from 436A power meter using 82357B USB-GPIB?
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
By Staffan · #92706 ·
Intermittent noise on HP 8568B
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
By Tobias Pluess · #92705 ·
Re: WANTED: HP 606B Sig Gen RF Output Attenuator Module A10
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
By Jeff Anderson · #92704 ·