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It's not so complex - just tedious. I attach the specifications from the 4285A LCR meter manual. On page 8 it describes how to work out the accuracy. On page 9 you see equations for A1, A2, A3

Thanks Jeff, that's interesting about the temperature-variable specific heat capacity of water. I'm assuming that for a dual-load device, the flow rate and SHC are automatically compensated so long as

Hewlett-Packard 434A. Sent: Friday, August 12, 2022 11:22 AM To: [email protected] Subject: [Test Equipment Design & Construction] Flow calorimeter for RF/Microwave power

Jeff's reference to the Oct '63 "Electronics World" article reminded me that I'm working on a project for my Youtube channel for a balanced flow calorimeter that can measure to 750 W at 2.5 GHz and

I’ve an HP434A working perfectly. Its a great transfer standard Ing. Patricio A. Greco Taller Aeronáutico de Reparación 1B-349 Organización de Mantenimiento Aeronáutico de la Defensa OMAD-001

Hi, do NOT use JavaScript for something so complex. WebAssembly allows you to use a real programming language. You can, for example, use C# and the Uno Framework, and then get a WebAssembly output web

I think there are two issues with this. 1) Making the output stable enough. I have thought of the signal generator plus audio amplifier route myself, as someone else mentioned. I bought a Radio Shack

[email protected]> wrote: Hi, The calculations to work out the uncertainty are in the manuals for the 4284A and 4285A. The calculations are non-trivial, and not easily put into a computer program,

I am suspicious of their claim of capacitors measured to 0.05%. My HP 4284A is replaced by the Keysight E4980A. https://www.keysight.com/gb/en/product/E4980A/precision-lcr-meter-20-hz-2-mhz.html Both

Here's a lot of useful information about good practices for making measurements https://www.npl.co.uk/resources/gpgs/all-gpgs A list, at the time of writing the list is below. But I am aware of one

A Standard Antenna is described by EIA/TIA-329-B.? I have built a few for UHF & microwave frequencies. The standard gain is 7.7 dB.

Back when I was measuring a lot of coil Qs using the 3db method and a scope, I figured out that 5 / 7 = 0.714, which is so close to 0.707, that on a scope you can't see the difference. So, I would

Paul, Good reason, I haven't tried it. Ray, W4BYG

Zvone, Thank you for your thoughtfulness. I don't speak or read German, but if the article is posted online, I can use Google to translate it. Regards, Ray, W4BYG -- This email has been checked for

Dear David, Q measurement is a very interesting subject, especially to someone who competes in Top Band Direction Finding events. The subject is glossed over in many modern textbooks but is covered in

Dave, Thank you for the inputs and interesting information. In my past I organized and lead a field test of various commercial and a home brew 40 meter ground mounted vertical antennas. This was

Geoffrey, Thank you for the suggestions. I have downloaded the software and will try it out. I appreciate your assistance. I will keep your email on my desktop and be sure to ask, if I need further

Everett, Thank you. I have it. Ray, W4BYG

Harvey, Thank you again. My earlier comments to you and then Dave, W6OQ would seem to applicable as a response. I appreciate your thoughtfulness. 73, Ray, W4BYG

That is why I prefer to do my antenna work after dark. de Paul, W8AEF _____ From: [email protected] [mailto:[email protected]] On Behalf Of Ray,