Home |
Search |
Today's Posts |
|
#1
![]() |
|||
|
|||
![]()
SWR METERS ONLY INDICATE FORWARD CW POWER AND REVERSE CB JARGON INTO
THE CROSSED-FIELD FRAKTAL YAGI IF THE IMPEDANCE OF THE SLOW-WAVE LOADING COIL TRANSMISSION LINE IS EXACTLY 49.0003000+j3.50003000 OHMS PLUS OR MINUS 39%! 73, Dan N3OX |
#2
![]() |
|||
|
|||
![]()
ALL RIGHT! thats the kind of assertion that should stir things up. I like
the 'slow-wave' part, thats a good one... maybe we should compare it to one of those faster than light antennas in the patent archives and see if we can get something going? wrote in message oups.com... SWR METERS ONLY INDICATE FORWARD CW POWER AND REVERSE CB JARGON INTO THE CROSSED-FIELD FRAKTAL YAGI IF THE IMPEDANCE OF THE SLOW-WAVE LOADING COIL TRANSMISSION LINE IS EXACTLY 49.0003000+j3.50003000 OHMS PLUS OR MINUS 39%! 73, Dan N3OX |
#3
![]() |
|||
|
|||
![]()
Dave wrote:
ALL RIGHT! thats the kind of assertion that should stir things up. I like the 'slow-wave' part, thats a good one... maybe we should compare it to one of those faster than light antennas in the patent archives and see if we can get something going? How about a loss of de-Corum...... ;^) Sorry Cecil, I'm a sucker for a bad pun! - 73 de Mike KB3EIA - |
#4
![]() |
|||
|
|||
![]()
Mike Coslo wrote:
How about a loss of de-Corum...... ;^) Sorry Cecil, I'm a sucker for a bad pun! I'm not sure K1AON and KB1EUD would appreciate your pun. -- 73, Cecil http://www.qsl.net/w5dxp |
#5
![]() |
|||
|
|||
![]()
Funny thing is that I'm down with the slow-wave loading coil thing.
Maxwell's equations are your friend... not a very nice friend when Bessel functions are involved, but... Faster than light, though? Maybe the phase velocity in some tricky cryogenic world, but I dunno... Haven't seen much on superconducting antennas here... I read a paper once with a superconducting magloop but they forgot to make the matching network superconducting too. Let's get the "bizarre but REAL" antenna thread going. Wouldn't you like to have a QRP CW rig with a 3" magloop for 20m on the top? The thermos full of liquid nitrogen is kind of a pain to lug around... Anyone built a "genetically" designed ham antenna yet? Might be a good way to go for the "I have 50 feet between two trees to put up an 80m dipole" crowd. Maybe we could develop a combined performance+aesthetics genetic algorithm to design efficient shortened vertical dipoles that look like nice pieces of modern art and have a nice low voltage section to run the coax out... you run the electromagnetic algorithm, weed out the weak designs, then you have your neighbor click the most attractive five and throw the rest out, and repeat! -Dan |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Steveo Fight Checklist | CB | |||
Steveo/Race Worrier Fight Schedule so far | CB |