Very pleased to work you yesterday.My pwr 300w to Marconi "T" ant 12m high,3 horiz wires 30m long loaded against several ground rods and house wiring etc.Rx Icom 781 2x250hz filters plus digital filt
Whilst setting up equipment here today the following slow CW signals were seen.Since apparently no contacts were established I thought those concerned would be intrested. 10:40 G0MRF CQ (0) 11:15 G3C
Happy New Year to all. Can anyone tell me wether there has been any slow CW activity over the holiday period.I have kept watch on 137.6 to 137.8 but nothing seen since 27/12/99 when I saw GoMRF and G
Tks Alan for your info.I think I may have been listening with the Rx incorrectly tuned(BFO on the wrong side)but I have corrected this now so hope to see some sigs.The signal that went Digital is one
Re. the ongoing discussion about loops. I agree that loops are very inefficient,not surprising since the radiation resistance is so low for a neccessarily very small loop on 136.(even a single turn l
Whilst I agree that height is very important from the transmit point of view,please dont forget the recieving problem,where big is not neccessarily best! I dont think we should discourage anyone, In
Great Rik just what I would like to see! David re.Loran, I an in the worst position here since I am only 150Km from Lessay with a mainly sea path between,but I have managed to reject it and still hea
OK Mal, but from the Rx point of view a strong signal is not important so long as it is enough to overcome reciever noise surely? It seems to me that what is important is sig/noise ratio and this dep
I came across an article from "Electronics World" Feb 1990. "Reducing mast height at MF". Tuned counterpoises are treated and some real world references are given. I can send a scanned copy upon requ
I have just measured my TX ant impedance(R term) and it is 120 ohm! much higher than I originally thought.It is of course all ground loss,I am using 3 ground rods close to the TX and the house water/
Hi Mal I think youve got me mixed up with someone else! we certainly didnt work yesterday! To answer your question my best DX to date, OH1TN. not too bad for a "Boy" with only one call sign, and also
Many thanks for QSO today.Sorry about my slow operating but this was my first QSO in this mode! You had a very clear and readable signal, only problem I find visual CW difficult to read. I hope to wo
Hi Marcus,Hi Alan. Oh! dear I did get it wrong didnt I,it was such a surprise to see your call Marcus that I missed the start so lost the D in your prefix, but as Alan says I should have known that i
It seems to me that there are several problems with this antenna system.I am not refering to the DANGERS of the tower which do seem to be troubling Mal.No I am more concerned with the efficiency of t
Extract from Daily Telegraph today:- "A recent Sun flare that has caused a radio blackout has prompted scientists to warn that the Earth will be most at risk from the effects of space weather later t
Hi John, I tried to model just such an antenna a few weeks ago using Eznec.The idea was similar to yours to try to improve the top loading.However the configuration showed NO improvement over having
Hi Rik, Yes I am using a 3 parallel wire top loaded ant. T config. The ant is 30m long and 13.5 m high.Loading coil 3mh,hence capacity to resonate 460pf approx.Allowing 100pf for vert sect.(your form
Hi Dave, Thanks fer QSO 1640 today.Called you at 2215 to tell you that you had been called by ON4ZK,but condx too poor between us Although your sig still 5/7/9. Also heard ON7YD call you earlier. 73s
