From Dave G3YMC Mal G3KEV wrote: Had you been listening today you might change your mind. I tuned to a weak steady carrier and the QRN was so consistant that it chewed it up completely. Not just inte
From Dave G3YMC While the electrical discharge in the atmosphere may be this short (but in reality I suspect will be longer) I suspect unless the receiver has a special IF filter the length of the pu
From Dave G3YMC Andy Talbot wrote a while ago, in connection with surface mount working: A really good headband binocular magifier helps. Such devices are available from RS ref no. 606-989 at x2.7 ma
From Dave G3YMC I can confirm similar reports that others have given: Big antenna, 80mW s9 Small antenna, 80mW s9+5dB Big antenna, 1W erp s9+12dB I have nothing noted to be sure, but when Derek was o
From Dave G3YMC Dick PA0SE mentioned a professional report on CW copying which should be interesting reading. I look forward to seeing extracts of this in Technical Topics, I am sure Pat Hawker will
From Dave G3YMC There has been some stinging comment on here in recent days on 'dyed in the wood' CW operators, which perhaps I have to admit to being. The implication is that if you persue such mode
From Dave G3YMC For your information, CFH was audible at S5 on Thursday 22nd June at 0600z, some 2 hours after local sunrise. This would be before the recent storms, so it may indicate that CFH can b
Has any discussion been made for Jack to operate around our dawn period, say 0600-0700, which is probably the most favourable and consistent time (and a time when I am in the shack and not in bed...)
From Dave G3YMC There were a few mails in my inbox after I returned after Christmas (among the 260 or so there...) comparing speed of delivery between e-groups and the blacksheep reflector we use. As
From Dave G3YMC Yes, I don't know what was in that file, but it corrupted my Netscape .ini files as well (even when I opened it with Outlook Express) and I have had to set them all up again (first ti
From Dave G3YMC I decided to try another pre-amp, and built a design by Lloyd Butler, (VK5BR) from the old LF source book using a single op-amp the OPA111AM. I chose this design because a couple of y
From Dave G3YMC Larry Kayser wrote: Jack is a conventional CW operator with renouned weak signal receiving skills on 160. He does not have Internet or Computer assisted receiving capabilities. Anyone
Mike and the rest The above was received last night at about 23.00 GMT on 136.25kHz at5/4/9. Still there this morning, slightly weaker. Anyone else hearing him? It is EI0CF - Finbar's slow keying wit
From Dave G3YMC Martin G5CIZ wrote: My attention has recently been drawn to the concept of the Cross Field Anntena. Which if it works might be the solution to problems of power and sixe. I quote the
From Dave G3YMC This sort of problem is going to continue until we can get Jack to move his crystal away from this part of the band and into the QRS segments. You can hardly blame Dave. 73s Dave serg
G3LNP's design deliberately degrades the Q to give a wider bandwidth, and eliminate the need for remote tuning. Another reason why you might not want the highest possible Q is that a high Q loop is
From Dave G3YMC At the expense of increasing the digital divide on 136!! The 136kHz band is slightly different from other hf bands in so far that it is rather narrow, and there is a far greater confl
