[Lowfer] No luck with - JH
John Hamer
wilbur0611 at gmail.com
Sat Dec 1 14:11:16 EST 2012
Won't that put me over my 50 foot limit?
On Dec 1, 2012 1:54 PM, "Pat Bunn" <pbunn at patbunn.com> wrote:
> Ground rods are not a substitute for radials. At lf, they need to be as
> long as you can make them and as many as you can afford. On my 600 meter
> antenna I have about 25 with the longest at 300 feet and an average length
> is probably 150 feet and I am just beginning to see the antenna Z begin to
> drop down into the low 40 ohms. I add radials when I can usually buying a
> 1/4 mile role of #14 aluminum electric fence wire and putting it all out at
> one time.
>
>
>
>
> Pat
>
> n
> N4LTA
>
> John Hamer <wilbur0611 at gmail.com> wrote:
>
> >How far do you go with the ground radials? I have one 8 foot rod pointed
> >straight down and 4 five foot rods at a 45 degree angle into the ground
> >around the antenna.
> >On Dec 1, 2012 11:52 AM, "Andy - KU4XR" <ku4xr at yahoo.com> wrote:
> >
> >> Gave it a valiant run though.. Seeing the same carrier line
> >> that is showing on Dex's grabber, but no signal from " JH "
> >> Don't totally give up on the vertical John.. They will work,
> >> #1 is Radials for the RF to reference to..
> >> #2 definitely construct a " variometer " if you haven't yet..
> >> #3 I found the Low Pass Filter really helped to provide a
> >> match that the TX liked to work into..
> >> #4 A Variable Power Supply for the Final PA.. There is a
> >> " sweet spot " that your transistors will like, and " JUMP "
> >> right up and shout out.. I found that my PA likes to run around
> >> 24 volts..
> >> Tweaking the combination of these will give you pleasing results..
> >>
> >> Good luck.. Andy - KU4XR
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