Hello Jay, Thanks for the info. I am glad too! :-) My antenna was the 100m kite vertical that was just in an angle of 45 deg, due to the poor wind. Thus, the radiation resistance was just about 410 m
Hi LF, Nicolas and Henny, My capture is attached as well although not so nice as Henny's... ;-) 73, Stefan Am 20.09.2010 22:54, schrieb henny van elst: Hi LF, Capture F4DTL, Henny pa3cpm 73s Het beri
Roger, This sound very hopefully and enthusiastic :-) What is the area of your loop? And what is the "gain" compared to the earth antenna? Will you give up the earth antenna project? And what about y
Hello Scott, Since today i am running a QRSS-600 window on my grabber. We can do a lot of tests if you want, i have the time and fun for it :-) Just tell me if you want to try other frequency sectors
Hello Scott, In which FFT resoltution / or QRSS mode do you record DCF39? Is it rather 1 second or 1 minute per pixel? 73, Stefan Am 09.09.2010 10:31, schrieb Scott Tilley: Thanks for the link Stefan
Hi Chris, Yes, right. But my _expression_ is the same. 0,707 = 1/sqrt(2), so U^2/R = P =(û/sqrt(2))^2/R =û^2/2/R =û^2/2*R. Measuring 100 Vp at 50 Ohm is 100 W :-) 73, Stefan Am 09.0
Hello Rick, What is his best RX distance so far? Is he just monitoring 137 kHz or even the VLF band? 73, Stefan/DK7FC Am 24.09.2010 01:11, schrieb Rick Wakatori: An example of two electrodes earth an
Hello Scott, Which antenna current do you get from 1.1 kW? You have a loop antenna, right? Which area, pse? 73, gl, Stefan PS: Nil here seen so far... Am 09.09.2010 02:47, schrieb Scott Tilley: I'm g
Very nice QSOs this morning. Seen DD7PC, DK6NI, F6BWO, OE5ODL in QRSS-3. My QRSS 10 LF grabber window shows many of the signals, still readable although it is QRSS-3 :-) 73 es GL! Stefan/DK7FC Attach
Dear LF/VLF, Today i saw the first time a flag from Norway on my VLF Grabber (http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.html). I would be very fascinated if my signal would be c
LF, This weekend i saw the first time IK1HSS and RA3YO (disturbed by my own transmission from France) in my QRSS-60 grabber window. Tnx to them for the activity! 73, Stefan Attachment: IK1HSS_QRSS60_
Hello Alberto, I have a question too: Is it possible to add a "QRSS-600" and/or a "QRSS-300" mode? Many OMs are using your program which does a good job (just as Rik's QRS program for transmitting).
Dear VLF, The wind forecast for saturday morning/afternoon changed to positive values. Thus i just sent a mail to the german air traffic control and announced a kite experiment and asked to give out
GE Roger, At least QRSS-30, depending on your QRO and my QRM ;-) But i would recommend QRSS-120 for a first test. We are not in stress ;-) If you want i can arrange QRSS-600. If we see that the signa
Hi Roger, Am 21.10.2010 14:05, schrieb Roger Lapthorn: I can increase the wire diameter soon which will increase the loop current some 3dB. Instaed of replacing the thin wire by a bigger you may just
Dear LF, I want to try a LF converter using this mixer. Does anybody know a (cheep!) distributor in Germany or EU for 1...3 pieces of it? I've just found one where it costs about 40 Euro and this is
Oh, 84 new emails... Dear VLF, After a 12 hours activity i have to cure a litte (sunburn!). I will have to read all these messages tomorrow. Thank you all for the great participation, the new WR dist
Hello Gerhard, Thank you for the interest and the grabber and the phone offer. :-) Marco/DD7PC is so kind to assiste me on the phone there on the hill ;-) I will send you some signals to optimise you
