Gentlemen: TransAtlantic II test will use CW at what ever speed the European side is sending, QRS CW probably at the rate of .4 WPM or what ever rate the European end is sending, maybe and hopefully
Greetings All: I think G0MRF makes an important point about 'Transatlantic II' frequencies - operating with split frequencies would also help avoid the problem of RX audio/soundcards being overloaded
Two issues for your consideration. First, CFH, Halifax is also on 137 kHz and you might want to see if you can copy this station on the West Coast. They are quite loud on the east coast. Second, ther
Greetings All: I uncovered two ancient RF Thermo Couple Meters this evening, I had put them away some years ago in anticipation that at some point I might want to measure RF amps. They are identical,
Greetings! Late last evening the Variac and my two RF Thermo Couple ammeters were given some tests based on the information received from this group. Success. The two meters in series across the Vari
Andy: From your earlier message today...... Any frequency modulation - or phase change - will be made in real time by a PC sending serial commands to the DDS. This single control process for the AD98
Petr asked: What bandwidth do you use and what is the experience?< I have a W&G selective level meter AT-611 that has a 24 Hz filter and it is great and I like it very much. I would be happy down to
Mal et all: I am actively looking at this, it will take a while as I have to ask for some summaries to be made manually but will get back when I have some info from those who have long experience in
Greetings All: I have four large toroids that were bought some years ago by a chap for use in amateur radio. I came into them after he passed on. They are labeled 144T500 - 3C5. I have seen somewhere
Peter: I am working on the Receiver chapter for the LF book and What is your favorite receiver and how does it compare with others that you might have tried? My favorite LF receiver is the family of
From Dave G3YMC 1. I have noticed that a weak station close or below noise is often much easier to copy if one walks away from the receiver. ..... I heard my first eme signal by putting my earphones
Greetings All: I had a great meeting with David, G0MRF yesterday in Niagara Falls. After almost 5 hours of discussion I started the drive home without having his postal address. I have an item I wish
Alan says....... Hi all I think Mal is right that the AR88D is not a diversity receiver, BUT I recollect a rack of three which I think had been modified for diversity use Well not just a few, I have
Greetings: The open house event take place 8am - 2pm (GMT) Sunday the second of July 2000. The transmitter will go on air at 8.30 and 8.45am. 0.30 and 0.45pm (GMT) I need some help with this please,
Andy: Please consider running the pc trace from Pin 18 of the PIC to Pin 8 of the AD9850 over near the edge of the board and putting some extra contact pads on the line so it will be possible with mi
The thread that has been running about BPSK / QRS CW covers the technical issues, but I sense there is an assumption that BPSK as per AFRICA/COHERENT by Bill de Carle and the PSK31 (and it's variants
John: Where can we learn more about BPSK, and in particular AFRICA/COHERENT by Bill de Carle? http://www.alltel.net/~k3pgp/opening.htm Look at this URL John and then look down for Bill Cantrell's art
Greetings: Bill de Carle has aggressively gone after my ultra weak signal on 137.710 and managed to copy it. He sent the following email to the LowFer reflector, I am resending it here for those who
Alberto: I recorded some 578 seconds of audio to hard disk at 7200 samples per sec. [snip] Seems really a good idea, which could attract also the die-hard CW-must-be-copied-by-ears crop around. Just
Greetings: Recently on this reflector there was reference to the availability of some 5 MHz frequency standards. An issue has come up here and I sure could use an extra standard to make life a little
