Home |
Search |
Today's Posts |
#1
![]() |
|||
|
|||
![]() |
#2
![]() |
|||
|
|||
![]()
On 29 Dec, 14:40, John Smith wrote:
http://www.seed-solutions.com/gregor...Experimentatio... JS John, Traps make no sense as they just waste power. It is so much more efficient to base antenna lengths in multiples of a wavelength especially when using top band. Regards Art |
#3
![]() |
|||
|
|||
![]()
art wrote:
On 29 Dec, 14:40, John Smith wrote: http://www.seed-solutions.com/gregor...Experimentatio... JS John, Traps make no sense as they just waste power. It is so much more efficient to base antenna lengths in multiples of a wavelength especially when using top band. Regards Art Art: Everything which is placed in a transmission line/antenna circuit has to "burn" some amount of power ... You sound like me, when I had the "back 40+ acres." City dwellers (indeed, myself in my present situation) need one antenna to do it all .... (actually, I got 3 separate stealth antennas doing the job--but you get the idea ... ) I know, you recommend the "magnetic loops/etc.", however, it is all about choice. Warm regards, JS |
#4
![]() |
|||
|
|||
![]()
On 29 Dec, 17:29, John Smith wrote:
art wrote: On 29 Dec, 14:40, John Smith wrote: http://www.seed-solutions.com/gregor...Experimentatio... JS John, Traps make no sense as they just waste power. It is so much more efficient to base antenna lengths in multiples of a wavelength especially when using top band. Regards Art Art: Everything which is placed in a transmission line/antenna circuit has to "burn" some amount of power ... You sound like me, when I had the "back 40+ acres." *City dwellers (indeed, myself in my present situation) need one antenna to do it all ... (actually, I got 3 separate stealth antennas doing the job--but you get the idea ... ) I know, you recommend the "magnetic loops/etc.", however, it is all about choice. Warm regards, JS I understand where you are coming from, but again it is about a contra winding portion of the trap which one knows does melt.A better way to do the same job would be to have a 20M half wave dipole with a square loop at the center with a variable capacitor. When you are at 10 M you then get double the radiation instead of loosing it to the traps. The variable capacitor gives you dexterity with respect tocontinual resonant frequencies. Try it you will like it. Art |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
WTB : Beam Traps | Equipment | |||
WTB : Beam Traps | Equipment | |||
Jwin radio.. kewl... :) | Shortwave | |||
ad: my Icom IC-PCR100 with kewl extras on ebay | Shortwave | |||
ad: my Icom IC-PCR100 with kewl extras on ebay | Swap |