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Gianna this is incredible!? I'm currently working on a 182T with a 8557A plug-in.? Can I be greedy and ask for a Spectrum Analyzer section for this beautiful document?

Buonasera Gianni, ho iniziato a leggere il suo lavoro, a pagina 4 mi sa che deve correggere l'unità di misura delle dimensioni , sono cm , non mm By the way, ho lavorato in HP Italia dal 1976 al 1985

Some notes from my repairs; Some of the metal film resistors used in the voltage divider/feedback circuits in the PSU and the horizontal amplifier can drift high in value, or go open. The 4-071

Thank you for doing the work on this. I was working for -hp- when the 180 came out. It was almost a world beater but not quite. I suppose I am more oriented toward "old stuff" because I am old. --

I continue with my perhaps-senseless activity of documenting old stuff. This is the draft about the 180/181 oscilloscopes: http://www.k100.biz/ebooks/180_draft.pdf Any contribution/correction welcome.

Feel free to swipe the 3048A code out of timelab.cpp if you like (which can be found in the installation directory written by the setup program at https://www.miles.io/timelab/beta.htm ). Search for

Hi Andreas. I think it might be possible to use the dual diodes and they might perform better than the single diodes with lower package capacitance? It's worth a try at least. I also have some dual

Sadly, nothing significant to report from me. I tried putting a genuine 5082-2800 diode on the curve tracer and on the VNA and it is definitely a bit better (in terms of capacitance and dynamic

Hello Yves, thanks to your tutorial on how to get rid of "Unknown Instruments" in Keysight Commander I made some progress. Commander works fine now and when I tested your second programm (dated

Hello, I tested the 2 lamps of back lighting. I have infinity on the 2. *I think we are rather dealing with "neon" style lamps and not classical filament, which explains an infinite resistance*. (? if

[email protected]> wrote: The excess noise ratio (ENR) is reference to thermal noise at 290 K - not to 1 mW. Dr David Kirkby Ph.D Kirkby Microwave Ltd Email: drkirkby@... Web:

Am 27.06.2024 um 13:11 schrieb paulswed: *And 11dB ENR is not the same as 11dBm !*

Hello Paul, The manual says to use the 346B/C for the calibration which are 15dB ENR sources. It also says you can use the 346A but you need to add +10dB of gain. So a minimum of +11dB sounds normal I

Razvan I appreciate your reply. Well thats a surprise. 11dbm as measured on a power meter like a HP436, or a spectrum analyzer? Thats 100 mw. I never would have thought to go that high for a input. I

Thank you very much Alan! With this I will probably succeed. My main goof was, that I was looking for 4 byte floats... Marko Cebokli

Hello Paul, I also use my units for Ham Radio and at least I have the 8970A working. I didn't have time to look at the voltages in the B model. I have the original HP noise source but as I said I am

The source code in HP Basic to the 3048 program is available and the load_results is as follows. It basically uses the ENTER command to do HPBASIC IO. The HP BASIC manual reminds us that in binary

The display module is the HP 1345A. There are two versions, one which includes display memory that it uses to continuously refresh the display, and the other version does not have the display memory,

Razvan I don't have your answer but face a similar issue on my 8970a. Though I do not have any official HP noise source. I do have noise sources and amplifiers so have tried various levels all with

Can you please confirm those dates? July 6th is not a Thursday. Thanks, Stan