[TowerTalk] trees as antennas

[Roger (K8RI)]

IIRC (note that is all caps <G>) I've seen a number of write ups on the 
"tree antenna" which were basically unsuccessful and one that was 
published on April  1st<:-))

Trees are big resistors with wide variations in conductivity, but in 
general I think you will find the resistivity quite high.   As is 
mentioned below by Jerry, I'd think the feed line would radiate much 
better than the tree.

73

Roger (K8RI)

K4SAV wrote:
> On tree antennas,  N3OX wrote:
>   
>> Here's one online:
>>
>> http://w5jgv.com/tree_antenna/index.htm
>> _______________________________________________
>>
>>   
>>     
> It's too bad he didn't do a controlled experiment, one system with the 
> tree and one without the tree.  He gave a clue as to the performance.  
> He says it works much better after he added a 30 dB gain preamp.  Did 
> you ever have to add a preamp to a 160 antenna?
>
> Notice that it is one of the standard recipes for a "feedline common 
> mode current antenna", a balanced very low impedance load (that would be 
> the coil) driven directly by coax.
>
> Jerry, K4SAV
>
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