开云体育

Dave, Thank you for your inputs. I have a TinyVNA and I find the super small letters on the 2.8" screen are very difficult to read, when testing outside. Using it or the PC computer software inside

Paul, Thank you for the suggestions. I'll look into it. Ray, W4BYG

Hello! In July 2022 edition of German magazine Funk amateur, there is an article on how to measure/calculate antenna gain using? Two-antennas-method and VNA. My knowledge on the subject is poor, so

On Thu, 11 Aug 2022 at 16:05, Adrian Godwin <artgodwin@...> wrote: > I have a biconical antenna intended for EMC measurements, with a generic > sensitivity chart that goes to 1GHz. It was

I have a biconical antenna intended for EMC measurements, with a generic sensitivity chart that goes to 1GHz. It was originally supplied by Seaward, a UK company better known for electrician's test

Hi Group, When I was working for the local TV station as a transmitter tech for our network. We used a German made TV field strength meter, I can't recall the brand or model. It had a B/W crt on the

Dear Ray, I would run some tests on your RSP Duo to check it's accuracy and repeatability.? The Spectrum Analyser software for it can be downloaded from: https://www.sdrplay.com/downloads/ *Using a

If it can be measured it's on topic. I just updated the list to exclude things like ghost detectors, but otherwise, *any *measurement is on topic. Anyone have something to offer on the subject? I did

The HP 3586A/B/C selective level meter is by far the best instrument measuring data automatically (via HPIB). Lester B Veenstra K1YCM M?YCM W8YCM 6Y6Y lester@... 452 Stable Ln (HC84 RFD

At mains power frequencies (45 – 60Hz), an audio oscillator, audio power amplifier and a selection of mains transformers would work. This would easily provide voltages up to 110-120 and 220-240. I

Have you considered used field intensity meters such as the Eaton 17/27 or 37/57 or an HP 3586A/B/C selective level meter?Paul Kobyka5obi

Ray: The TinySA spectrum analyzer may meet your needs. Pocket portable, inexpensive, covers HF thru UHF and beyond. Can detect unmodulated signals. And the linearity may be good enough that you won't

If you buy a SDRPlay, there is free SA software on SDRPlays website. Everett N4CY

Take a look at the RTLSDR dongle. Cheap and lots of software available. Paul, W8AEF _____ From: [email protected] [mailto:[email protected]] On

Harvey, Thanks for your inputs. I have an RspDuo and an Airspy+ . I've not tried them for a application such as this. I tend to think one would not be able to resolve enough detail accuracy with an

If you had a software defined Radio, could you dig the data out of it?? No idea about bandwidth or sensitivity, but it might be sufficiently sensitive depending on the frequency you're interested

Brooke, Thank you for your comment. I agree using a SA is probably the best way to measure EMF's. Been there done that. Looking for a less costly (think cheap), way to do it. But it seems that with

Brooke, Thank you for your comment. I agree using a SA is probably the best way to measure EMF's. Been there done that. But it seems that with some of the new chips today. a reasonable arbitrary log

Hi Ray: I looked into Measuring EMFs and the best result was based on using a spectrum analyzer that has calibrated amplitudes based on a 50 Ohm input. https://prc68.com/I/MeasuringEMFs.shtml

On the thread "...Making a Q meter": In reviewing the listed subjects, I would like to query the group on relatively simple "Electric field strength" measurements. I have successfully made