TIP: Click on subject to list as thread! ANSI
echo: ham_tech
to: IVY IVERSON
from: ROY WITT
date: 1997-10-03 09:10:00
subject: High Gain Antennas for 2M

Hello Ivy.
03 Oct 97 00:59, Ivy Iverson wrote to Roy Witt:
 II>> Ah yes, the good old corner reflector... Now if you were to
 II>> replace the dipole elements with a 5/8 J-pole and
 II>> suitably-sized elements, mount them vertically on a boom,
 II>> (about 6-8 Ft long?), I wonder what ERP you would get with
 II>> about 40 Watts at the antenna, (50W xmtr)? ...
 II>
 RW>>> Build it correctly.  Mount it behind the reflector...This is
 RW>>> about a 7.5dbd  antenna with a much better F/B ratio than
 RW>>> you'll find in a normal Yagi.
 II>
 II>         (Side view)
 II>
            ×       |     |       |       |       |      |
            ×       |     |       |       |       |      |
 °°°°_______×_______|_____||______|_______|_______|______|
 °°°°       ×       R     DE      D       D       D      D
counter     ×       |     |       |       |       |      |
weight              |     |       |       |       |      |
            Pole/Tower leg mount....1/4 wave min
... Unstrap me, damnit, I want to clap too!
---------------
* Origin: KB6PI's Antenna Farm * San Diego, CA (1:202/909.10)

SOURCE: echomail via exec-pc

Email questions or comments to sysop@ipingthereforeiam.com
All parts of this website painstakingly hand-crafted in the U.S.A.!
IPTIA BBS/MUD/Terminal/Game Server List, © 2025 IPTIA Consulting™.