Hello Chris, Sorry to hear about the short circuit in the coil. Can you repair it by using an isolating paint? I have never had HV problems on my coil so far although using QRO. But surely my wires a
Hello Alex, I'll be QRV in the next days on LF. Maybe you will see my signal in QRSS-10 soon. Would be glad about that :-) 73, Stefan/DK7FC Am 28.06.2011 18:15, schrieb Alex K: Next 4 days grabber sc
VLF, Finished for today. I know now what to improve. The signal can be improved up to 10 dB here. For a test it was successful but it is the wrong time of the days and year. Furthermore my TX frequen
Hi Roger, Am 23.06.2011 10:43, schrieb Roger Lapthorn: Today I noticed some workmen in the road outside my house with measuring kit and listening gear. They were checking for leaks in water pipes whi
After a break i am back on air in this moment transmitting a long carrier. The signal generator is the DDS VFO, so stability is not perfect but should be suitable for 424 uHz i hope. It is a very fir
Hello Peter, Clemens, Jim, LF, Before a few days i have bought a new copper tube with 18mm diameter and 1mm thickness. I formed a loop with 1m diameter. This time i put 2 copper plates into the tube
Hello Hugh, The model i have in my mind is a capacitive divider that is within an E field (TX signals and noise). There are 2 plates, the probe and the counterpoise. The counterpoise has a C against
Wow, Pete, You have plenty of space to arrange big antennas for LF and even VLF! Never thought about becoming QRV? :-) 73, Stefan/ PA/DK7FC Am 22.06.2011 12:04, schrieb M0FMT: 73 es GL Pete M0FMT I
Hi Gary, You have changes something on your LF QRSS-10 grabber, right? Maybe reduced the scroll rate? Something is different. 73, Stefan Am 28.07.2011 22:04, schrieb Gary - G4WGT: Hi Mal, Yes, still
Seems you found another station for testing. Good luck with DL6NN! He is very close to you. Your signal is stronger than his. Will you be QRV in the evening? I am at work and still need some time her
Gary, i wrote my last mail before you wrote the mail below, HI ;-) 73 Am 29.07.2011 13:52, schrieb Gary - G4WGT: Graham, Thank you for your favourable comments. 73 Gary - G4WGT. On 28 July 2011 23:54
Hi Alex, Dmitry, LF, Nice to see some activity on LF. I'm trying too (now!) but much success. Very strong QRM in west EU and bad propagation... Time to prepare the next season!! 73, Stefan/DK7FC Am 1
LF, I going on with my monologise ;-) ...about my LF TX converter (maybe someone silent is interested) that directly convertes 12.7 kHz (generated by SpecLab) to 137.7 kHz in an IQ mixer. It is a mod
Hi Bill, Really an exciting story ;-) I think once the TL084 got damaged it acts like a rather low impedant part and will carry several mA or A, thus it smells after a long time ;-) It's a questing o
Yes indeed, Gary, Your grabber is most useful to check propagation to UK. There is no alternative in the moment to your grabber and it is very nice that it runs 24/7!! I like to leave some traces the
Hello Andrey, Tnx for testing. I've turned the loop into about your direction. Now it points almost directly to DCF39 but anyway the noise is reduced since we have thunderstorms in SE of DL. Now it p
Hello Jim, LF, Am 19.07.2011 23:11, schrieb James Moritz: Scale the values of either R or C proportional to the inverse of the centre frequency (or both - it is 1/RC time constant you need to scale).
Hello Alex, There is a signal! :-) Not bad. Getting my signal to you might be a bit more complicated. My TX QTH will be http://no.nonsense.ee/qthmap/?qth=JN29OD96TL and the distance to FF40XA is just
