开云体育

On checking, I can't find anything either. Perhaps I read it elsewhere - an NPL document for example. The SI document is searchable, and a search of volts, watts, moles, amperes does not find any such

Thanks Dave, Looks good and informative, also seems unbiassed. I’ve subscribed too, Dave Skone Sydney Australia

Exactly. I can't imagine writing "The power dissipated is four watt." That's why I'm asking David to point me to a specific reference that prohibits pluralizing unit names. Just for reference, here's

But by unit symbols do they not mean W for Watt or omega for ohm?? I can understand? 2 W. Amd not 2 Ws but not 2 Watt instead of 2 Watts.? ?I thin there is a misreading there.? I.e. confusion

Hi Dave, Thank you for the feedback, an amended version is attached. 1. The input power of watt is rounded to the nearest integer - it would be useful if it allowed a few decimal places, as entering

Thanks, but I already noted that explicitly in the first paragraph of my post. My question is not about the *symbols*, but about the *units when spelled out*. David asserted that the BIPM says that

The Style Manual, the Australian Government Publishing Service document, states quite categorically that SI unit symbols never take a plural s (Wiley Australia, 2002:184). This is based on

Nice calculator, thanks. Will be much better than looking for an on-line one when needed. If anyone is interested using small series capacitors to measure Q using the 3 db points, I have about 20,000

Thanks for that, David. I do have a question about plurals, however. IEEE journal editorial practice explicitly disagrees with your rule about plurals when the unit is spelled out. The IEEE says to

That's useful. Can I suggest a few improvements? 1) The input power of watt is rounded to the nearest integer - it would be useful if it allowed a few decimal places, as entering powers in nW or

I created this Excel spreadsheet to convert between Watts, Volts, dBm, dBmV and dBuV. It has simple protection applied to guard against accidental overwriting of a formula. There is no password

I don't know about others, but I was completely unaware of this. https://www.callabmag.com/ I was made aware of it by someone at METAS, who has published there. So if METAS publishes there, it is

Well the box turned out a little silly, basically a short from BNC to BNC. I setup a series LC 230uh, 110pf (variable) I could not get a dip, (still unsure why, not my first rodeo) So, I installed a

Measurements using a single voltage measurement with an air coil may not be easily reproducible. Air coil selected at the time for computing Q using an online coil calculator.

Thanks Steve, As I read EMRFD, the external 50 Ohm resistor is intended to be input Z of a Voltmeter or Spectrum Analyzer. The solutions I just posted is using a high Z oscilloscope as a voltmeter. It

The ARRL publication Experimental Methods in RF Design (aka EMRFD), first published around 2003, has the same? info on using notch depth to compute Q for a series or parallel circuit, p. 7.36,

I knew an Alan Victor when I was in grad school at U of F. I wonder if he is the same one. 73 (Regards). Max K 4 O D S. I've Never Lost the Wonder. Sent: Sunday, August 28, 2022 7:26 AM To:

The external 50 ohm load resistor is not required, and increases solution complexity. https://www.kn5l.net/Inductor-Plots/VNWA-Measure/ Section "Voltage Ratio Q Measurement" is updated with new

Thank you. I will delete the poorer version I created from the photographs. RF Volt meters are much less common than power meters or VNAs. Given both ends are terminated in 50 ohm, this seems more

Ron, many thanks for the clean copy of the article. 73, Stay Safe, Robin, G8DQX