LF, Am 27.09.2010 22:14, schrieb Scott Tilley: If someone knows the relationships for how a loop behaves over ground I'd love to see them too! Can't this be done in EZNEC? Scott, this sound really im
Hi John, Me? I haven't transmitted since last weekend. 73, Stefan Am 11.09.2010 08:06, schrieb John RABSON: At 0604z. John Rabson F5VLF 58800 Cervon France JN17vg
Mal, I am equipped for all eventualities Maybe next weekend there will be the next eventuality! I am interested only in QSO mode on same band or xband. Me too, if possible. My spectrum display on dfc
...is currently transmitting QRSS-60. 35 dB above noise here :-) and a very stable carrier! Marco, can you transmit for a test using QRP and try QRSS-240 or even slower? :-) 73, Stefan
Scott, A very interesting mail! Am 28.09.2010 00:11, schrieb Scott Tilley: A loop made for a very nice compromise... If you can work JA / 7200 km in QRSS-10 it is not a compromise but probably one of
Hi Graham, OK, but most people are just transmitting beacon signals! I would not even have the time to do a real QSO in QRSS-60 but this is not the issue. We are talking about beacon transmissions li
Hi Gary! Fine! I haven't seen it but this is just since i wasn't sitting on the PC to that time. This is a disadvantage to QRSS-600: There, it doesn't matter if you come some hours later into the sha
VLF, Last saturday, Michael Oexner has successfully and undoubtly received the message i transmitted on the 600m spaced earth electrode antenna on 8970 Hz. His RX antenna is a PA0RDT design. SpecLab
VLF, Is someone transmitting on 8970.000 Hz ? I am receiving a carrier in the 6000 and 60000 window which is exactly on the QRG. This is the first time observed within the 60000 window which covers a
Hello Horst, It is a homemade RX that downconverts 137 kHz to 12 kHz by using a BF862, a BF981 and another BF981 at the output. The 125 kHz signal for downconverting is achieved by using a 1 MHz crys
Thank you Nicolas, It is rather weak, isn't it? Have you had QRM to that time. It is a little difficult to value the characteristic of the antenna but a clear reception is a good first step ;-) 73, S
Wow, there is really heavy QRN now on LF and VLF in Heidelberg but not only there. QRSS-3 window is completely white! But in the afternoon we have had several hours with extremely low QRN! The season
Hi Roger, Not sure if the calculations are correct but i wish you nice holidays! 73, CU! ;-) Stefan Am 28.09.2010 15:46, schrieb Roger Lapthorn: This morning M0BMU started listening on 137.5kHz WSPR
Hi Roger, 40 Vpp is just normal if the power supply has about 12V! You can assume about 3,5...4 times the supply voltage for u(DS), if well matched! Most programs will give you just an imagination on
Dear LF, Since about 2 weeks i am running a 137 kHz grabber page that covers QRSS-30/60/120/240 (600 will be added). Due to some noise problems (like on the LF grabber as well) i made a secret out of
Hi John, Marco, LF, Wow! Congrats Marco! Seems you have much improved your antenna! 73, Stefan :-) Am 11.09.2010 11:39, schrieb John Rabson: Sorry. I have checked and it was DD7PC. I should have said
BTW, no one at all is transmitting on ELF (300 Hz... 3 kHz). This makes it a litter harder to evaluate the RX performance... Am 02.09.2010 11:02, schrieb Roger Lapthorn: Good luck Stefan. It will be
Hello Lubos, Congrats to ur special licence! :-) One can read that you enjopy it :-) I cannot transmit or receive there in the moment but may give you a RX rprt soon. Best 73 und fun Stefan/DK7FC Am
Hello Scott, With some imagination one can see a trace on my LD_DX grabber in the QRSS-120 window (http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_LF_DX_Grabber.html) arround 4 UTC at 137.778 kHz
