I have been trying to model this (using MMANA) but I have a hard time getting my head around modeling. I have a full size 40 meter rotatable dipole which I plan to install at 105 feet. I want to put
Paul Perhaps less interesting, but simple, would be a sloping dipole/vertical dipole fastened to the top of the tower. Unless you have a very short tower, this can be an effective antenna on 30m. I
I have 40 and 30m beams on a single tower and modeling of those shows virtually zero interaction. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com On 15-Jul-18 8:21 PM, DALE LONG wrote: Paul Perh
<I have a full size 40 meter rotatable dipole which I plan to install <at 105 feet. I want to put 30 meters on the same mast if possible. I had considered two options but am not sure if there will be
Check out coupled resonators. I have a full size 40 meter rotatable dipole which I plan to install at 105 feet. I want to put 30 meters on the same mast if possible. I had considered two options but
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Mon, 16 Jul 2018 17:59:30 -0300
Paul, Have you considered shock exciting and insulated (sleeve principle) 30 Meter element a few inches above the 40-meter rotatable dipole? This would probably work if the 40-meter dipole is a split
Herb, Yes I have but I consider that an option best left to expert builders or those who primarily want to experiment. I am unable to create any model which shows good SWR on two bands with that appr
For example, here (second bullet): https://ac6la.com/aecollection4.html And here (third bullet): https://ac6la.com/aecollection9.html Dan, AC6LA https://ac6la.com ____________________________________
Thanks to everyone who replied on and off list. There are several shortened 40/30 dipole designs around. Since I already have a full size 40m element built and would like to believe it is mechanicall