[Lowfer] No luck with - JH

[Pat Bunn]

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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