The multiplication of two input channels is already working now. Still missing is a way to retrieve the DC component of the product, but I think I will abuse...
460
ehydra
otc_friend
Nov 7, 2011 11:30 pm
... Why not go over FFT to extract power? A FFT will always remove DC. A FFT will show the instantaneous power budget too. The harmonics are heavily depend on...
461
ehydra
otc_friend
Nov 7, 2011 11:34 pm
OK. That should go into SL help files. - Henry ... -- ehydra.dyndns.info...
462
wolf_dl4yhf
dl4yhf
Nov 8, 2011 5:16 pm
Hello David, ... Not sure if this would give almost the same result as the "RDF spectrum". It delivers the amplitude (as colour intensity) and the phase ...
463
David Fields
fieldsdef
Nov 8, 2011 5:46 pm
Is it possible to take the inputs to the two sounds channels (A and B) and display the freuency spectrum of (A+iB) and...
464
wolf_dl4yhf
dl4yhf
Nov 8, 2011 8:51 pm
New version with the two-channel-multiplier uploaded to the website (non-beta). Documentation of the multiplier: ...
465
ehydra
otc_friend
Nov 8, 2011 11:19 pm
... Thanks! I will look on it. ... OK. Is it still possible to direct the multiplied signal then to the FFT window? ... Yes. I want to see all harmonics too....
466
wolf_dl4yhf
dl4yhf
Nov 9, 2011 5:46 pm
Hello Henry and group, ... Yes, and that's part of the fun: To test it, I fed the multiplier with a 1 kHz sinewave, and checked the squared output on the...
467
ehydra
otc_friend
Nov 9, 2011 6:12 pm
I will try this out. Thank you again - Henry ... -- ehydra.dyndns.info...
468
wolf_dl4yhf
dl4yhf
Nov 9, 2011 8:04 pm
I added one little feature for the DC reject / DC measurement function: This time constant is now adjustable (formerly fixed to approx. 10 seconds). So you can...
469
vbifyz
Nov 22, 2011 12:15 am
I am playing with the SL's HTTP server functionality. Everything went fine, then one day the server began to send HTML files from the server_pages directory as...
470
vbifyz
Nov 22, 2011 6:00 am
Sorry, IE 8 actually works, I just didn't type "http://" in the beginning of the URL....
471
vbifyz
Dec 5, 2011 8:19 pm
Hi all, I have a setup running that repeatedly goes through a list of frequencies (BIB11 broadcast schedule) and logs the SNR for each line of the schedule if...
472
wolf_dl4yhf
dl4yhf
Dec 6, 2011 6:59 pm
Hello Mike, Thanks for the info and for sharing the Perl script - I will add a pointer to this forum / post in the server-pages info for the next release. All...
473
Hwbgn Hxggo
hhwbgn
Dec 9, 2011 10:32 am
Dear Wolf, a publication with spectrumlab http://www.mdpi.com/2076-3263/1/1/3/ thanks, Cristiano...
474
joitoiu
Dec 9, 2011 4:35 pm
Hello, I found your project, and I impressed. a very complex project, I think you made a lot of effort. I installed and started to get used to...
475
Brian Chaffins
orienell
Dec 10, 2011 9:09 pm
It's with a heavy heart that I am passing on this information. Dave Benham of McMath-Hulbert Solar Observatory, Lake Angelus MI passed last night of a heart...
476
sctt_tlly
Dec 11, 2011 8:56 am
Hi All Has anyone tried using rct.send with an AR8600? I'm getting very erratic behaviour from mine with SL and the rct.send command. It may work once then...
477
wolf_dl4yhf
dl4yhf
Dec 11, 2011 9:29 am
Hi Scott, I don't know the AOR protocol but could it need a gap (pause) to process the received data? 73, Wolf ....
478
Brian Chaffins
orienell
Dec 11, 2011 3:44 pm
For those of you that knew Dave Benham of McMath-Hulbert Solar Observatory. He passed this Friday of a heart attack. He will be missed by many. He was very...
479
wolf_dl4yhf
dl4yhf
Dec 11, 2011 4:00 pm
Hello Brian, Thanks for passing on the information. I had a couple of private mail exchanges with Dave earlier this year, about hum removal for the SuperSID...
480
joitoiu
Dec 12, 2011 2:00 pm
Hello, I've done research and I tested other programs of its kind on the net. Most blocked my PC and one destroyed my boot record. My luck was that after I...
481
sctt_tlly
Dec 13, 2011 3:50 am
Hi Wolf Thanks for the tip. I got serious about debugging this and pulled out my NULL modem cable and connected it to the other computer beside me. Here's...
482
joitoiu
Dec 13, 2011 5:13 am
Hello, I've done research and I tested other programs of its kind on the net. Most blocked my PC and one destroyed my boot record. My luck was that after I ...
483
sm5le
Dec 20, 2011 10:36 am
Hej Wolf Do I need any plugins or something to have "Auto notch" to work on ver V2.74b12 ? Can you recomend any values for "ANS" "ANR" "ANW" etc for not...
484
wolf_dl4yhf
dl4yhf
Dec 20, 2011 5:03 pm
Hello Sven, I never tried the automatic notch filters to enhance Schumann reception, simply because most mains-related carriers are much higher in frequency. ...
485
sm5le
Dec 20, 2011 8:18 pm
Tnx Wolf for info. My carrier noise is from streetlights ! The streetlight transmitt on 6.5 - 7.5 Hz one hour when turning on (and off) ! The noise-signal is...
486
MuxF
mux_folder2001
Dec 26, 2011 4:35 pm
I found some messages from February related to this issue but they do not seem to apply to my situation. I make recordings of my SDR for my beacon monitoring...
487
wolf_dl4yhf
dl4yhf
Dec 27, 2011 10:33 am
Hi MuxF, Thanks for the info. I will investigate this issue when time permits - at the moment I am very busy from a different "building site". From your...
488
Alan
alanzfq
Dec 27, 2011 10:55 am
Wolf, With the introduction of a Delta 1010 to my system I find it difficult to select the required device. The drop-down box is not wide enough. All I see is...
