Search found 278 matches

by Mike2459
Sat Jun 01, 2019 3:48 pm
Forum: SDR Antennas
Topic: New Sdrplay and antenna creation
Replies: 21
Views: 2232

Re: New Sdrplay and antenna creation

If the above is the theory of the workings of this antenna, then a bigger capacitor will have a bigger aperture and couple more "E" field, thus more signal to the receiver.....


You would then need an SDR that could handle the increased dynamic range, the SDRPlay class cannot.
by Mike2459
Fri May 31, 2019 10:44 pm
Forum: Spectrum Analysis
Topic: Can’t start tracking generator
Replies: 5
Views: 617

Re: Can’t start tracking generator

Today I connected the tracking generator to my scope. Tried all the functions with Arduino serial monitor. Set up a sweep and observed it on the scope. I could not get a response for the Connect command. Could this be the issue with Spectrum Analyzer? According to the user manual the tracking genera...
by Mike2459
Fri May 31, 2019 7:52 pm
Forum: General
Topic: Spectrum analyzer Vs. SDRuno. What’s the primary differences?
Replies: 5
Views: 471

Re: Spectrum analyzer Vs. SDRuno. What’s the primary differences?

Spectrum Analyzer is primarily test and measurement software. It's particularly helpful in the characterization and design of RF filters.
by Mike2459
Fri May 31, 2019 2:37 am
Forum: Spectrum Analysis
Topic: Can’t start tracking generator
Replies: 5
Views: 617

Re: Can’t start tracking generator

Thank you, Bob.
Got a response to the version command with serial monitor. 'Newline' or 'No line ending' must be selected in the drop down box in serial monitor.
'Carriage return' or 'Both NL & CR' won't get a response.
by Mike2459
Wed May 29, 2019 10:34 pm
Forum: SDR Antennas
Topic: New Sdrplay and antenna creation
Replies: 21
Views: 2232

Re: New Sdrplay and antenna creation

Bas, I took your advice - compared the two G5RV's (yours and Hackgreens) and the Twente sdr : http://websdr.ewi.utwente.nl:8901/ which uses a miniwhip. I'm not going to make any further comments. Make the comparison for yourself and report back.
by Mike2459
Wed May 29, 2019 10:06 pm
Forum: Spectrum Analysis
Topic: Can’t start tracking generator
Replies: 5
Views: 617

Re: Can’t start tracking generator

Bob:
There was a discussion about this a few weeks ago here:. viewtopic.php?f=12&t=4336

You've made more progress than I. I can't get the mega2560 to answer when I query it with the serial monitor. Rx flashes but no TX.

Mike
by Mike2459
Mon May 27, 2019 8:42 pm
Forum: SDRuno
Topic: Memory Files missing?
Replies: 2
Views: 536

Re: Memory Files missing?

There are no s1b files included in an SDRUno download.
by Mike2459
Sun May 26, 2019 4:12 am
Forum: New Users' experiences
Topic: Greetings - and issue with CW buzz
Replies: 1
Views: 346

Re: Greetings - and issue with CW buzz

If you have an AC voltmeter measure the AC between the chassis of your SDR (when it's connected to the PC and the PC is running) and (with the antenna disconnected from the SDR) the shield of your antenna cable. You may be surprised what you find. I was. I measured 60 Volts AC
by Mike2459
Sun May 26, 2019 3:46 am
Forum: SDR Antennas
Topic: Busy night of 40 meters
Replies: 4
Views: 635

Busy night of 40 meters

40 Meter Band CW activity around 0300Z, Eastern USA:

20190525 0253Z 40M CW.JPG
20190525 0253Z 40M CW.JPG (259.22 KiB) Viewed 635 times

Go to advanced search