Hello Peter, Better say 6,6 +-200 Hz. It is still not certain where the resonance will be, sorry. There are to many assumtions, estimations and calculations. On 137 kHz the measured C for 100m is 580
Hello Horst, Guck luck with your tests! My grabber tries to watch you ;-) What is the voltage you are achieving with the TV transformer? And how much power will you apply to the 800m antenna? What wi
My god, some news are so funny that i have to laugh like this: http://www.youtube.com/watch?v=AoVmBpPZgWI ,HI ;-) 73, Stefan Am 23.07.2010 18:36, schrieb James Cowburn: OT- Cat Control of JRC Rig - n
Hello Warren, Pse, what is your antenna and power and ERP about? Maybe this was asked/ described before but it would be hard to find in that amount of mails... 73, Stefan/DK/FC Am 23.07.2010 19:26, s
Hi Roger, Have you already checked how your earth antenna acts as a RX antenna? Maybe you have read my last mails in which i have discussed measurements of the effictive area of my earth antenna. Mos
Hello Andy, Maybe you can try a even higher antenna mast. I think there are some fiber carbon masts of 18m length. This could give you even more efficiency and would be a more easy to handle arrangem
Hello Rik, VLF, Yesterday i have measured the receiving voltage of DHO38 on my earth antenna. I used an impedance converter with an OP AMP, so the input impedance can be seen as infinity. I got a sig
Hello Marcin, Am 05.07.2010 00:34, schrieb Marcin SQ2BXI: Maybe next club meetings, friday, well be QRV on dreamers band? We have last problem with stability signal generator to QRSS 600. 73! Marcin
YES! Very fine John! What do you plan? Which QRG and which wire length? My hint is to use a mountain if you have one beside your QTH. Whish fun and good luck and await your results/report! 73, Stefan
Hi Wolf, Nice about LF. Let's have a QSO soon. But what about VLF? Project canceled? Or are you still winding the coil? ;-) 73, Stefan/DK7FC Am 11.07.2010 15:44, schrieb Wolf Ostwald: Hi ! Just finis
Dear group, Today the average VLF QRN level was pretty low! Also the minimum QRN gap in the morning becomes braoder again. Maybe the most awaited DX period starts slowly? Best wishes, Stefan/DK7FC
Roger, you can use a T50-2 for this. There are some types that are more suited for that frequency range but sometimes difficult to get. I am using the T130-2 for 120W and the T200-2 for the 1kW PA wi
Hello Warren, No need for money. I will take that challenge. Maybe it will not be a QSO but just a reception, anyway. And: Effort is fun! :-) 6.34 kHz is just a test, the main interest will stay at 8
Hi Roger, Eating and drinking is important! I do it every day, hi. Have you seen the landscape in france? It seems to me there is place for a full size earth dipole for 9 kHz in some places,ufb! Tnx
Hello Roger, VLF, Maybe it will give us some ideas of the propagation of such an earth antenna if i try to receive even lower frequencies on my grabber QTH. Then we can see if the effective area incr
Mal, there are also T400-2 available! Roger, i've found a list which may be suitable/informative: http://www.xs4all.nl/~barendh/Cateng/Cateng_amidon.htm 73, Stefan Am 25.07.2010 20:52, schrieb mal ha
VLF, Has there been a transmission by SAQ today arround 13 UTC? I see a strong signal on my grabber near 17,2 kHz which has the typical unstability... Stefan/DK7FC
VLF, Almost every day i see that the difference between maximum and minimum of the QRN on 6,34 kHz is about 20 dB while it is just about 10 dB on 8,97 kHz. Has anyone experiance if this is an advanta
Andy, LF, Which digital mode could be most suited for a band where one has just an antenna bandwidth of some Hz? You know what i mean... And what could be the "gain" compared to DFCW-600. Gain means
