Re: Topband: Dual band shunt-feeding tower on 160/80

2013-08-26 Thread Herb Schoenbohm
Jeff, You will have problems with attempting to shunt feed a 100 foot grounded tower on 80 since it approaches a grounded half wave radiator and just to long on 80. The solution for this is to make a decoupling sleeve on the tower by elevating the 80 meter feed up the tower and bring down

Re: Topband: Dual band shunt-feeding tower on 160/80

2013-08-26 Thread N1BUG
I've done exactly what Herb suggested: hung a sloper for 80M off the side of my 160M shunt-fed tower. Neither antenna knows the other is there and both work pretty well - meaning I'm satisfied with what I get out of them. Interesting. I have tried verticals, slopers, inverted V's and other 80

Topband: Dual band shunt-feeding tower on 160/80

2013-08-25 Thread Jeff Blaine
A buddy of mine has a 100’ 25G tower and wants to run it on both 160/80. I’m thinking a par of shunts will work for that? If you have done this, I would be interested in your comments on the general implementation. Thanks! 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie