Home |
Search |
Today's Posts |
#10
![]() |
|||
|
|||
![]()
"Brian Kelly" wrote in message
om... "Kim W5TIT" wrote in message ... "Mike Coslo" wrote in message ... From http://www.oakvilleamateurs.net/news...s/hb200302.pdf . . ."For most 40-meters, the most practical antenna is the 1/4-wave dipole (66 feet in total length) up at least 33 feet in the air. If you've never worked (or heard) Europe on 40, it's likely your dipole is too low. The challenge grows on 80 where your quarter wave dipole (133' 9") needs to be . . . Bilge. All of it. A 66 foot dipole is roughly a *half wave* dipole on 40M and a 134 foot dipole is roughly a *half wave* dipole on 80M. A 33 foot long center-fed dipole is a quarter wavelength long on 40M but it is not resonant on 40M and ya better not get stupid and feed it with coax then just plug it into the back of yer radio if ya wanna work anybody with it. Ask any Novice . . . w3rv Newp, sorry. A 40M 1/4-wave dipole can be made to resonate just fine and work wonderfully. Its position to the ground and center angle have everything to do with how well it will radiate. And, using a balun or not doesn't change the whole concept of using a 1/4-wave dipole at any frequency. Whether you want them to or not, they work. Kim W5TIT |
Thread Tools | Search this Thread |
Display Modes | |
|
|