Friday 14 January On 73kHz again. Worked M0BMU who had improved his antenna (gave 599, got 589), and G0MRF (559/459) at 45km for my fifth two-way QSO on the band. Transmitted QRSs (4s dots) afterward
Yesterday, I mentioned that I had heard IK5ZPV when the local noise suddenly went down to the lowest I had ever heard it. I forgot to say that I also heard CFH at S2 - and this was 2030UTC or 3.30 lo
Interested in the discussions about roofing filters. When I was using a ferrite rod antenna on 73kHz, it had a useful bandwidth of less than 1kHz and needed to be re-tuned for different parts of the
Dave Wilson, AC4IU, who lives near Fredericksburg, south of Washington DC, reports to have seen DFC39, but rarely, and adds that he is not sure what determines when he can hear that station of not. I
I have an idea of resonating my existing vertical on 8 kHz. Is there a practical way to construct a 600 mH loading coil, withstanding 3-4 A and high voltage? Any *large* toroids on the market?' /Chri
I would like to thank all the listeners for reports on the 73 kHz signals. I managed good contacts with G3YXM, M0BMU and G3LDO. Maybe we could designate Friday night as 73 kHz Test Night, to try and
A noise level -45dB relative to the carrier, within a few 100Hz of the carrier is probably pretty good performance, or at least not a major fault - after all, there is bound to be some ripple, and -4
Saturday 5 February Located fault on LF station - actually two faults which was why it wasn't easy to find in the dark! The variometer coil had a disconnection in the middle where it was tapped, and
G4GVC wrote: . . . .. . the contact I had with HB9DCE at 10.43UT on Sunday morning. He called on my frequency as I finished a contact with DK5PT, and seemed rather surprised when I responded, althoug
. . . . . . G3XDV's signal could probably be measured from within the university though - how about it Mike? Cheers, Jim Moritz 73 de M0BMU Any time. It may also shed light on the interesting anomoly
Friday 11 February Went on 73kHz for "Friday night is activity night", and found noise level fairly low at S7. Worked M0BMU (gave 599, got 589). No-one else heard. Put out numerous normal and slow CW
I also found Toni's signal barely copyable Sunday morning when John and Dave were giving him good reports, something I have also experienced before. Whatever the state of Toni's chaos antenna at the
To Alan, Cesare appears to have a rather interesting oscillator - a bit like the one I used to use. So his transmission drifts and wobbles by a few Hz. This has the advantage that it is easily recogn
Aurora expected on VHF tonight (21st), so watch 136kHz toward the north ! 73, Rik ON7YD I have subscribed to the IPS Flare Information service described on this reflector, and the warnings say: IPS F
M0BMU wrote: Last Friday I was QRV on 73kHz between about 2100 and 2300 utc - didn't hear/see anyone else though. This was a pity because the Rugby TX was transmitting only two unmodulated carriers,
Ahh - are those "O" symbols the letter "O" or the number "0?" -;) They are zeros. A string of zeros is the nearest an unmodified keyer can get to a continuous carrier, and will still take some advant
Saturday 26 February Low noise level and conditions good. Greek RTTY S8 and CFH S4 at 0830. Heard G3OLB (599); GM3YXM/P (569); G4GVC (599); G6RO (559); PA0SE (579); OE5ODL (329) country number 18 hea
An X-class (biggest) solar flare occurred this morning at about 0830UTC, with an M-class flare just afterwards. The A index is still low at about 20 - it was over 50 when Larry had the good reception
