G'day All, Can anyone point me in the direction of a DOS-based QRS keyer? I was browsing and found a link to one in a file called "qrs.zip". Unfortunately, the link didn't respond. To make things wor
G'day All, Thanks to all those who replied to my query about a QRS keyer. The information/programs supplied reminded me that I have an old TRS80 Model 100 lying in the back of a cupboard just waiting
G'day All, Having recently received permission for operating an experimental transmitter from this location on LF, I am now faced with the problem of erecting an LF transmitting antenna. Although in
G'day Marco, Thanks for the info. I take your point about variation in feedpoint impedance with WX. The only reason I was concerned about matching was in regard to wringing the most out of TX. On wha
G'day All, I know I am a little early for the 1st of April, but what ever happened to the revolutionary CFA (crossed field antenna) ? There was a series of articles on the 'net promising many things
Oh Dear, what a kaffuffle! My enquiry after the CFA certainly provoked a wide range of responses! Ranging from professorial admonishings to construction details. Johan, I think you should apologise f
G'day All, Here is my two cents worth... I think that there is not a great deal to be gained from using multiple-tuned verticals. The reason I think that is that if you look at the aim of improving o
If six such antennas are parallelled, the total loss resistance becomes 1/6 while the radiation resistance remains unchanged. The total impedance is now 0,45 ohm due to reduced losses. The antenna i
G'day Renato, Excellent site!! I found it very interesting and food for thought. Thanks!! 73s Steve Olney (VK2ZTO/AXSO - QF56IK : Lat -33 34 07, Long +150 44 40) == LowFer URL: http://www.zeta.org.au
G'day All, Have just finished putting up some information about FDK (Frequency Difference Keying). If you are interested use the link in the sidebar on my main page at:- http://www.zeta.org.au/~ollan
G'day Rik, I can indeed confirm that this slow visual CW works. It was one of my early attempts to figure out a way of improving the S/N on LF paths. It had one tone for the "dots" and one for the "d
G'day All, IMHO, I think it would be wise to wait until the Isle of Man transmitter is tested. Am I wrong but doesn't the latest coverage map from the IoM site look a lot smaller than the old one? 73
G'day All, Am I wrong but doesn't the latest coverage map from the IoM site look a lot smaller than the old one? Yes I am wrong, it is only a little smaller :-) IMHO the IoM antenna will be deemed to
G'day Väinö, Real hams don't worry about blood pressures.... Tsk, Tsk... Hams are supposed to be kind and considerate to others :-) CFA debate has been going on for about 10 years now especially on N
G'day All, Prompted by the discussions here on the VCW method described by Rik I have resurrected the code that I used to test this method earlier this year. As the code was all there from these earl
G'day All, To add a bit more info about VFSKCW, some advantages I noted in the earlier experiments (I haven't done any lately) was that under marginal conditions (e.g. QRN) I found VFSKCW easier to c
G'day All, I just got a new 'beta' version of QRS ready that supports FDK. Those who want to test it are requested to send me a mail (direct, not via reflector). I have written to Rik and explained t
G'day All, Have just uploaded version 2 of VFSKCW. Messages are now saved from one session to another. You have provision for changing the size of the offset between tones (to match different dot per
G'day Alan, Yes, as pointed out in part iii of the the Notes on the download page, some parts of the package have yet to be done. I am working on them :-) Should be available in the next version. Any
G'day All, I have just posted Version 3 of VFSKCW. It now includes a help file as well incorporating shaped tones to minimise keying clicks. This will be all for now until I get enough interest to ad
