Hello Lubos, Still, there is a clear trace just above 8970.04 Hz but the letter "K" is not really readable since the SNR is poor and the element length (3000) is a bit short then. 3 dB QRO would make
Hello Gary, Would it be possible for you to add another SL instance, running a QRSS-3 window. The current one is displaying QRSS-10 but 3 is not readable, unfortunately... 73, Stefan/DK7FC Am 20.05.2
Hello group, Here a picture of my new LF frontend of my active antenna, http://dl.dropbox.com/u/19882028/LF/LF%20frontend.jpg It has a 2 stage bandpass filter in front of the first FET stage (BF862 w
Hello Eddie, VLF, Your additional grabber windows are interesting. Remembers me to the site of Renato Romero ;-) What antenna do you use for displaying the range of 0...50 Hz? My probe circuit has a
Hello Roger, What means close? Is it above 770 so i am looking for you :-) Maybe the first RX stations can confirm the actual frequency, if unknown so far. 73, GL, Stefan PS: QRSS60 would be more use
VLF, Does someone know what is the trace on 18.2 or 18.3 kHz that i can receive at about 10 dB SNR? http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.html Maybe VTX India or so? Just li
Hello Eddie, This looks quiete promising to me! I know there are some OMs who have often received the ZEVS (F4DTL or F5WK?) and may comment on this. But such a straight line on about the right freque
Hello LF, I just set up a temporary QRSS-1 grabber at http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_LF_Grabber3.html It is fast updating each 20 seconds. The scroll rate is 200 ms/pix, FFT bin
VLF, What is that trace just below JXN, i.e. arround 16.3 kHz? It is visible on most VLF grabbers, especially during the breaks of JXN. Now it seems to have stopped (14 UTC). There is no correlation
Hi Scott, One can really read in the lines that you must have been most fascinated. This email could be well used to explain non-amateurs what's the fascination of amateur radio, even if it doesn't d
Hi Alex, 12 kHz may be 11.904 kHz? This would be an Alpha signal. Otherwise i assume it is a local noise, maybe even fromyour soundcard. Can you send us a screenshot of what you receive? If you are u
Hello Markus, VLF, Am 21.06.2011 00:00, schrieb Markus Vester: Total resistance of the antenna circuit was around 280 ohms (including 140 ohms for the coil). This is about half of that when I used th
Graham, Andy, LF, Am 26.06.2011 09:39, schrieb Andy Talbot: Graham - you don't say if you want a hardware solution or a software one. I think if he asks how to do it in SpecLab, he wants a software s
LF! I'm in holidays for a few days in Holland on a camping site near the north sea. Just for fun i have arranged a LF grabber here in JO22IV77. The grabber is available here: http://www.iup.uni-heide
Hello Mal, VLF, OK, i am actually RX QRV on LF all the time here. And i have internet during the test! :-) Now, the coil is on the roof and it's dry. I will prepare now... Maybe the first VLF antenna
Hi Pete, It must be local or generated in the soundcard. No traces on the grabbers, even no trace at G3ZJO who is relatively close to you... 73, Stefan Am 26.06.2011 17:26, schrieb M0FMT: Hi all Anyb
Hi Peter, Tnx for excellent information! 73, Stefan Am 26.06.2011 17:12, schrieb pws: Hi Stefan, ... What is that trace just below JXN, i.e. arround 16.3 kHz? ... Allocated to VTX1, India. http://map
LF! Despite strong QRN in EU i'll run a beacon transmission in QRSS-60 at 136.172 kHz. I'll start in a few minutes. The goal is the 4X1RF LF grabber. There seems to be much lower QRN in 4X than in we
Wow, good news. Well done Alex, Now the activity on the band is missing ;-) I will try in a few days, probably Tuesday evening! Is it a quiet location? Will it (and VLF) be a 24/7 grabber? Updating e
