Hi Joe, How much current or voltage will the coils hold? Why did you choose RF litz wire for a VLF TX coil? Good luck! 73, Stefan Am 15.02.2017 20:45, schrieb [email protected]: Hi VLF, Thank-you for the
Hi Stefan, I'm not sure how much voltage the coil will take. So far, there is no smell of ozone or burnt insulation. Coils wound with 6 strands would arc and short with more than 20 ma. So far the 12
Thanks Joe, OK, 20 mA. Guess that's the strongest signal you radiated so far. Probably Paul would like to have a stable carrier for hours! :-) 234 Ohm DC, that's ok! What are the mechanical dimension
Hi Joe, Congrats to your stable signal now on 8270.0075 Hz. A good frequency :-) The band is free in the moment, DF6NM and me, we are down on the 58km band again :-) What about a first EbNaut message
Recent measurements of carrier from VO1NA on 8270.0075Hz Night: 19th/20th 13.9 dB phase 3.0 deg 0.065 fT H-field only Day: 20th 10.5 dB phase 101.4 deg 0.034 fT H-field only Night: 20th/21st 12.1 dB
Hi Stefan and thanks for the kind remarks although the congrats are due to those who helped me improve my carrier stability and SL skills. Paul reported a phase shift which could be due to WX -- let'
Hello Paul, VLF, Am 22.10.2017 22:20, schrieb Paul Nicholson: Signals from Joe and Stefan have been very useful: some comparison S/N dB readings on recent carrier signals: DK7FC 5170.005 Hz -- Old RX
Getting about +10 dB Eb/N0 on new E-field and about +6 dB Eb/N0 on H-field. An unusual message, though. Thought it might be a false decode, but it's equally false on both nights? If it degrades over
Hi Joe, Paul, VLF, Congrats to the first message CA -> UK on 8.27 kHz!!! A good day for VLF amateur radio! Am 22.10.2017 23:43, schrieb [email protected]: The notebook running SL to generate the carrier
Am 23.10.2017 11:06, schrieb Paul Nicholson: Getting about +10 dB Eb/N0 on new E-field and about +6 dB Eb/N0 on H-field. Excellent. So E+H could be 12 dB. Based on the S/N reports from your last emai
Am 19.11.2017 21:19, schrieb [email protected]: Meanwhile on VLF, the TX has been on since the last EbNaut TA and the phase should be quite stable with the pickup antenna feeding SL. If the carrier is go
Hi Markus, Stefan, VLF, There has been a bit of an increase in the erp as a result of raising the antenna although it is difficult to say how many dB have been gained. The carrier will continue on 82
Hi Joe, (I changed the subject). Oh, yes, it is already fun just to think about it, i agree :-) Realy a pity that we have no more RX stations. Iceland would be such a nice distance, for you and me...
