Hi all tonight G3XDV was "O" copy here . I believe his signals are the most weakly challanged that I have received across pond. I have sent pics to Mike. 73 de John VE1ZJ John, Many thanks for the pi
Many thanks John for the report, I will have another go tonight. Same time same format. 73s Laurie. I was on last night with 120s dashes, 60s dots, sending "G3XDV" on 135.923kHz. I will be on again t
73 de John VE1ZJ PS how does one get on the DJ8WL chat line? John, This should be the DK8KW chat room. DJ8WL is the late Peter Bobeck (alias DA0LF) and I am very much afraid that I gave his call to y
Hi Laurie Hi Mike [cut] the diff rx-input-voltage between ur signs is 10db +/-2db. Uwe/dj8wx jo43sv ant: inv.Ve with 340m and 400m lws Uwe, Many thanks for the picture again. It is interesting that L
mike.dennison schrieb: Hi Mike and all, I made a screenshot from ARGO-30dots on 135.922.0 kHz +/- at 0045 todays morning (06.03.01). guess your signal, Mike, was the strong one with 60/120sec. but I
I am a little puzzled about the three different OK call signs that are reported to have been worked: OK1DRT, OK1BTN, OK1DTN. Are these really three new stations? The only one I have heard is OK1DTN,
As a slow learner i am allways behind whatever is going on must be my age, but almost managed the Wolf receive side here aswell. Also using CE2K Pro for recording and Wolf 0.53.. Now what bothers me
No comments from you lately so I will reiterate, I am sending you WOLF every night from 01 utc to 02 utc...........137.7894 is the TX freq Larry VA3LK Two issues arise here. Firstly, now we have dayl
G3ACQ wrote: I am very keen on exploiting DFCW to its limit (after all its easy to implement) but it still needs to be speeded up. Because of the lack of timing of the FFT bins they tend to become bl
There has been so much discussion on Wolf and BPSK spectra on this reflector recently that it seems a prime topic for the forthcoming LF Forum on 20 May at Flight Refuelling HQ nr Wimborne. Has anyon
VE1ZJ wrote: Hi all, I saw the spectrum plot Alberto provided of Valerio's wolf transmission. What an ugly sight. It takes between 15 and 20 Hz of specytum space. With 30 sec dots I can receive and s
One of the several variables that I need to get right is the audio level. I understand I need to get this within a few dB of -20db or so relative to the overload point of my sound card. The question
M0BMU wrote: I made 3 recordings of IK5ZPV's "Wolf" signals on 137.5kHz last night; one made between 2000 and 2025utc produced no decoded results, however the other 2, from between 2100 and 2200, bot
Yet again, many thanks to Jim for helping to clarify a technical point. One problem with ferrite cores is saturation - if the magnetic flux in the core exceeds a certain point, the core effectively l
I replied: ON7YD wrote: I'm using a loading coil with ferrite rod for 'fine tuning' the antenna (I can slide the rod in/out the coil). Without rod the coil is 700uH, with the rod I can tune it from
If you load it with ferrite you will certainly increase its inductance and also its efficacy as a receiving antenna but the radiation efficiency on tx will decrease accordingly (the difference betwee
I recorded ten minutes of Valerio's WOLF transmission last night and eventually decoded his transmission: "TSTIK5ZPV" then six spaces. The Good News: This was despite very loud QRN. He was running QR
Regarding the use of a high loading coil, Mike (XDV) comments: part beyond the coil is quite antenna with substantial large inductance Perhaps I have misunderstood your point Mike, but this sounds w
G3LDO wrote: In an attempt to improve the reception on 136kHz by cutting down the Loran racket I have, over a period of time, been experimenting with LF receiving loops. I now have one that works rea
G3YMC wrote: I shall be repeating my talk on 136kHz - '136kHz from the Suburban Plot' at Bracknell ARC, Coopers Hill Centre, Crowthorne Road North, Bracknell, on Wednesday 11th. April at 8pm. All are
