Bob, I would keep the screwdriver on your car or truck. At the very
best, it will be an inefficient radiator on 160-30, regardless of where
you put it on your tower. Instead, I suggest you try shunt feeding and
omega matching the tower itself. Your 12 radials are a good start, and
the tower, with the yagi as a top load, should give you an effective
length somewhere between quarter waves on 80 and 160 meters.
73, Pete N4ZR
The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at
reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000 and
arcluster.reversebeacon.net, port 7000
On 5/18/2012 9:35 PM, Bob,K7PE wrote:
> Hello from a new subscriber with a question:
> I have a new Hi Q screwdriver antenna with the 6 inch coil and the egg beater
> cap. hat that I want to attach to my tower. The tower is a US crank up 55 ft.
> with extensive ground radials 12 in all in a spoke fashion with a grounding
> rods at each end.A 12 element Tennadyne log is on the top at 57 ft. The log
> covers 13-33 Mhz. and I plan on using the Hi Q for 160 through 30 meters.
> Now the question is where do you advise installing the Hi Q on the tower and
> how far away from the tower?
> Thank you;
> Bob,K7PE
> dek7pe@sandpoint.net
>
>
>
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