FYI wb2vuf's comments remind me of an article in CQ, early fifties (I believe) The author pulled his 75 meter whip antenna over and grounded the tip on the front bumper. The picture of the car was on
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Fri, 31 Dec 2010 15:39:48 -0600
Yup the technique was known, it just wasn't called "NVIS." Its not the technique we are hunting, its who adopted and claimed to have invented that name. 73, Jerry, K0CQ ______________________________
Jerry, Not sure if it helps much, but NQ6Z was obviously on the same quest. In one posting, he claimed that the earliest reference to the term he had found was a 1972 Fort Monmouth report: http://www
Bill, I suspect the 6dB increase in gain was due to the horizontal component radiated when the antenna was bent over, not because it was grounded. Being in Signal Corps and stationed in Berlin, I can
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Fri, 31 Dec 2010 17:20:24 -0600
Ft. Monmouth is a likely source. I wasn't thinking that early since it didn't seem to be taken up by commercial vendors to the military until the late 80s that I can find. I have orders for Fort Monm
Could also be increased current in the whip, and particularly at the highest elevation part of the whip. A straight vertical whip has zero RF current at the top. (an unavoidable boundary condition)
Ken, to refer to Shakespeare in "Romeo and Juliet", 'What's in a name,? A rose by any other name would smell as sweet'. This might also apply to NVIS. 73, Frank, K4VMO _______________________________
I can confirm that Rick's comment about missing street carlines relates to the only reason we ever bent our hut truck antennas during the "peace action" was to avoid overhead obstacles or excess wavi
Jerry, Following extracted from a discussion on the Yahoo NVIS discussion group: "I believe George Hagn was the first to use the term, "near vertical incidence skywave" in 1967 and Sol Pearlman at Ft
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Sat, 01 Jan 2011 13:26:50 -0600
Thank you. And since it was used for tactical communications in combat it probably was essentially classified for a while. Known only to US DOD and friendly forces by that name, though the concept wa
Wow! John Brune and his sidekick John Gratalo are the guys that I ran into at Lakehurst NAEC in 1981 where they were flight testing the system. I didn't know that they were famous. When their project
Yes, QST in around 1967 featured the "mobiloop", which was similar. I can't imagine driving around with one of those on the car today. Bob WB2VUF _______________________________________________ TenTe
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Sat, 01 Jan 2011 16:56:41 -0600
Other than all of us who put up a horizontal wire for 80 meters and couldn't get it more than a quarter wave high (60 feet) and worked the surrounding states just great, but no DX... And that's been