Dear group, I is a long time ago that i have done the last experiment. Tomorrow, the WX could be suitable and i have time and motivation to try the next experiment on 8,97 kHz. But the WX is a little
Hi Mike, Just count the number of turns you used and multiply the number by 0.65. This is the new number of turns. Or, remove 35% of the turns ;-) 73, Stefan Am 31.05.2010 17:02, schrieb Mike.WE0H: H
Tnx Mal. Dont't you want to be one of those amateurs as well? You could surely become one of the TXing group as well! Stefan/DK7FC Am 20.05.2010 15:08, schrieb mal hamilton: Stefan You are doing well
Dear group, Today i checked 3 different places for my VLF grabber antenna. The currently used antenna was not touched. I used a second antenna that uses a fiber optic cable + battery that totally dec
Hello Jim, Aah, ok. Well, i haven't done this test. As usual, i took all the time to transmit although i wanted to prepare that test. The QRN level was to high and Markus told me that he is not visib
Hello Horst, VLF, Am 11.05.2010 10:45, schrieb Horst Stöcker: TV Transformer, interesting. I think it should work well on lower distance. QRP on 9kHz, hi. I also had this idea after my first tests on
Hello Peter, Indeed, there was something wrong arround 24 kHz. Now i have switched to my /p USB soundcard (that contains its own driver). Now, DHO is available :-) Additionally there is a button that
Hi Piotr, Wow, that are really interesting simulation results. Mni tnx! You have partly answered the questions i just asked Paul ;-) So, if possible, i will try to transmit even lower :-) It is some
Thank you Paul. BTW, my special permission for a 300m kite vertical becomes more probably in the last time. Maybe i will get it in the summer, what is not optimal. But in that time i can make several
Hi Laurence, Am 12.05.2010 22:10, schrieb Laurence KL1X: Im waiting for a day when its safe to stand in an open field and not become part of a damped tuned circuit! But Im happy with my 9Khz rx syste
Hello Jim, Nice to see that TX stations coming up in the UK!! I watch this with interest and am dreaming about a QSO, even if it will take hours ;-) The "dx window" becomes smaller, about 3 hours (6
Mal, It is used in my test antenna, for local tests. I tried to reach my grabber out of a distance of 1,1km (home QTH to work QTH). Generally this is a method to become on air for a first step but is
Dear LF/VLF, Since yesterday i have added a "QRSS-6000 transmitter test window" on my grabber. It is on the bottom of the page. 1 Pixel is 40 minutes long. Above, there is the ALPHA beacon on 11904,7
Peter, Ok, but it could be a IM with another signal?! Because i know that the sample rate is 48000 and it is successfully locked to GBZ. Additionally the main IM product, 9 kHz (due to strong LF broa
Dear group, Can anyone help me with a GPS receiver i want to use for frequency locking? Just before 2 minutes i got a GPS hand held device. It is at least 8 years old. It is a "Magellan Blazer 12". C
...additionally i even added a 8th window. It seems to look like a childish game what i am doing here but it helps me much, understanding to see how the clipper acts and so on. I just want to share t
Hello Peter, VLF, Am 22.05.2010 11:33, schrieb pws: Stefan, you are observing well known sunrise/-set effects and your monitor works fine now. I rather think that the amplifiers gain is now much more
Hello Marco, You still can see on the grabber that it was switched out on saturday night until now. There is 3 hours time difference to UTC so it is switched out at 21UT. This happens each few weeks.
Hello Jim, Am 16.05.2010 18:20, schrieb James Moritz: So a negative result here this time, although I see signals were visible at DF6NM and DL4YHF - how was reception on the vertical antenna? Cheers,
Mal, I assume you know your antenna capacitance so you can easily calculate your needed inductance. Or, if you know your L for 137kHz, it will be about (137/9)^2 at 9 kHz! Stefan/DK7FC Am 14.05.2010