Dear all My 500kHz NoV has arrived! Excellent dealings with OFCOM - very helpful. I propose doing some initial tests this evening from home. I will have CW running on 502.5kHz. ERP about 100mW. I loo
What time was that and what mode ? I heard you first on CW then I heard you go to data modes. Your signal seemed to change level - do you test on different power levels? 73 Richard G3CWI
Andy Talbot wrote: Ansoft Designer came up with this solution. http://www.g4jnt.com/518kHz_BandStop.gif The component values aren't particulalrly nice, and there is almost certainly a nicer design wi
Surely you should be looking at more than 100km for daylight range, Richard. See if you can hear my beacon on 503.7kHz, transmitting every 15 minutes at 04/19/34 and 49 minutes past the hour, using t
mal hamilton wrote: Jim I did not say an inv L virtually lying on the ground as in Richards case(1 METRE ABOVE GROUND), this is more like a beverage antenna. This is all very interesting. I have spen
You are S5 here at the moment in a the rising QRN. Also can see G0NBD and OR7T attempting a QSO in MSK4 - Rik's signal is just about visible on the waterfall, but will have to wait until I have compl
Who is actually active on 500kHz within about 100km of me in Macclesfield? Is this reflector the best way to solicit contacts? Oh dear. No replies. Is 500kHz as quiet as 10GHz (where I also play)? Su
mal hamilton wrote: Richard Try a 12metre fiberglass telescopic pole to support an inv L using wire size 1mm as long as possible. Use a matching network at the bottom of the vertical part, coil in se
I've used a system similar to yours with some success. Mine, now dismantled, is detailed at http://www.g0mrf.com/500kAntenna.htm It was a 10m mast with a very small 3m top section. Power in 7.5W PEP.
Not a great success. Tried a 200ft inverted L with 7m vertical section fed against 3 radials each between 50 and 100ft long. The final 100ft was very low - within 1 metre of the ground. Did not succe
Dear MFers A few of the SOTA crowd have started taking an interest in 500kHz since I mentioned it on their reflector. Some have been listening and hearing people. Are there any restrictions on making
if you let me know when / on what frequency you are transmitting I will try to copy your signal. Rik I hope to be QRV at 1330z today portable from IO83xd. 200ft inverted L with 8m vertical section. 7
I know this is a bit off topic, but rather than going up in altitude, had you considered going down? It is over 20 years since I was last in your part of the world, but as I remember it there is quit
Dear all Someone has suggested running a sloping wire down a cliff and top feeding it. This is an interesting idea. Extending on that idea, if the lower end of the wire was connected to some radials
Your beacon was quite strong the other night into Wallasey, 3 miles west of Liverpool , what is you power/ae set up ? Graham I am running about 15 watts into a T aerial with 40m top and 6m vertical.
is you antenna matched to 50 Ohm ? Not sure but the optimum power transfer suggests that it is matched to the output impedance of the transmitter. If you just bring it to resonance (loading coild adj
I think most are "VFO" controlled... Centre of activity appears to be between 502-503 with beacony things nearer the edges. If you came up on 502.5 you wouldn't go far wrong! Thanks Dave. I have had
