The Navy decided several years ago that the Annapolis transmitter site was no longer needed. It provided a number of LF broadcasts to the fleet along with the VLF broadcast. Many remember hearing NS
Amazon.com lists the Radio Handbook, William Orr W6SAI, Editor, 23rd edition, 672 pages, May 1997 at $52.95 ISBN:0750699477 Regards Andre' N4ICK (Especially) dear US readers of this server, does anyb
Andre, I will be getting a Ropex Tx as a Christmas present for my portable work. Please let me have details of the crystal mods. Here are the modifications I have now performed on 3 different units:
Sadness / nostalgia: the huge LF and VLF US Navy antennas installed at the NSS site in Annapolis Maryland (including the Goliath, one of the largest structures in the world), have now been destroyed.
LF signals can propagate by ground wave or by sky wave. Most studies on LF propagation have concentrated on the ground wave mode and little data and analysis exist on sky wave propagation. J.S. Belro
I believe that the professionals' experience can be important to us, but limited by their very needs. Indeed, professionals want reliability, good coverage day in, day out, etc. Hence huge amounts of
LF Fans, Our WA2XTF/12 beacon, working into a 1600 ft horizontal antenna grounded at both ends, was heard in London, Ontario. This is our best DX so far (>500 Km) :-) For more details, please look up
I have heard this station (France Inter 162 KHz) for several hours from about 1800 local until now 2220 at a good enough signal level to understand many words. It is about the 4th or 5th time I have
Hal (WB3KDU) and my self went out to a remote parking lot on the Blue Ridge between Rt 50 and I-66 and were able to receive the transmission from SAQ this morning (2 Jan). Ant was a 40 ft telescopin
My earlier post has an error. The baud rate from CFH on this frequency is now 100 Bd instead of 75 Bd (which was used in the past). However, the shift remains at 85 Hz as it was before and is often
The purpose of grounding both ends was to try and duplicate some of the "Earth Bipole" experiments conducted earlier (and good results obtained) by John Taylor G0AKN. Both ends grounded means that th
Wooops, I guess I did not express myself quite clearly enough. The far end of the wire terminates in a field , (and specifically near a pond) visited by many cows. In order to avoid any possible unpl
Hi Andre, I understand that the transmitter power is 250 KW, but that the transmitter is being (or has just been) upgraded to new equipment which may make it more efficient.. No information on the a
LFers, I took the van out Sunday afternoon to Algonkian Park to make a dry run. Active antenna went up on a 24' pole. It went up fine and just strapped it to the ladder on the back of the van with a
In reference to recent postings on this reflector regarding receiving loops, the following article by Frank Gentges which appeared in the current issue of the AMRAD Newsletter, may be of interest. 73
hello LF Friends (and others too), Those of us who were in October 1999 at Old Windsor during the HF/IOTA/LF Conference, will recall that we strung a fairly long antenna above two huge cedar trees. Y
Let me add the motto of William the Zwijger (the Taciturn), which was: "Il n'est pas necessaire d'esperer pour entreprendre, ni de reussir pour perseverer" which can be freely translated as: "It is n
hello LF Enthusiasts, Some details of our recent trip to Nags Head are available on: http://www.amrad.org/projects/lf/ including pictures of antennas, equipment setup, and even of yours truly being i
Yes, but until DCF39 is detected by ear, there is no chance of amateurs 70dB below it getting through, even using slow CW. Dave Wilson, AC4IU, who lives near Fredericksburg, south of Washington DC,
Thanks, Mike for your kind words of encouragement. A comment, though: Excellent. I feel that concentrating on this high ERP station will provide a useful pattern. DCF is an inland station, fairly far
