Thanks Paul, Oh oh oh it is not easy at all! The stacking works with limited improvement over that path. Wonder if 8270 Hz would work better... The next transmission is already running.. One could co
...8 night transmissions completed. However the last nights transmission stopped at 18. Nov, 04:19 UTC due to strong snow. I'm thinking about a dynamic safety limit: A dangerous fault on the coil wil
Thanks Paul for the summary. Well, 8 days already and it gets worse. I think the phase changes are not from my side, so it must be the path. I think i will give up now with this 3 character message.
Well, 8 days already and it gets worse. I think the phase changes are not from my side, so it must be the path. I think i will give up now with this 3 character message. But even a failed attempt giv
Hi Stefan, why give up? At -2.5 dB EbN0, Mike and Paul already had about 65% of the required energy for three characters. That's about 2 out of 3, or one character's worth left to do. Now throwing th
Hi Paul, Ah yes, thanks for the additional overview. That is what i expected. Low noise does not necessariliy mean good Eb/N0. So the amplitude scaling based on the noise voltage may even be contra-p
Hi Markus, You see the phase is varying to much, at least in this experiment, in these last 8 days. I could continue for several more nights and maybe we would be there one days. But we are already i
Hi Markus, You see the phase is varying to much, at least in this experiment, in these last 8 days. I could continue for several more nights and maybe we would be there one days. But we are already
Eb/N0 -4.9 dB with that one. Perhaps two more repeats necessary. I look forward to that, it is the best way to test the new H rx, to see if the strange noise floor seen in the old rx has gone. PS Hav
Hi Paul, For the dog, one sausage is enough. But you need to put it on a charged HV capacitor with a case at GND. I have such capacitors, 5 kV / 10 uF. About 0.15 m diameter and 0.2 m high, with a si
Am 19.12.2017 22:41, schrieb DK7FC: For the power supply, maybe a cheap tric helps to start the supply securely, see attachment. Just press the button for a second in case the supply doesn't start up
Thanks Paul, Terrible, it becomes worese again :-( Quite a struggle. But i (we) need to stay relaxed. The 4th transmission is now running. Let's see what it brings. It would be interesting to learn a
PS: How does the phase of JXN or HWU look during these nights? Is there a corelation? 73, Stefan Am 21.12.2017 19:41, schrieb Paul Nicholson: After 3 nights: 18/19th Eb/N0 = -4.9 dB, S/N -39.6 dB in
Hi Paul, Can you give me a feedback from the last night? It is now the question if i give up or continue. I will not be near the antenna in the next 2 nights at least. Would be a pity not to use thes
Hi Paul, Again thanks for the summary. Ok i see, it makes no sense that way. The last > 100 transmit hours did not lead to a success... Does the message decode when correcting the phase? I think not.
