[TowerTalk] 80M antenna wire size

[David Gilbert]

I did the EZNEC model again using perfect ground.  The ground losses 
were indeed a couple of dB lower in every case, but if anything the 
differential between the various versions (#18 copper versus #20 copper 
versus #18 Copperweld) became narrower and therefore even less 
consequential.

And as you say, EZNEC tries to account for skin depth anyway ... which 
by the way is of course less at 80m (N2TK's situation) than 160m.  The 
Copperweld spec sheet says that there is about 4 mils of copper on #18 
Copperweld wire.

73,
Dave  AB7E



On 1/3/2020 11:21 AM, jimlux wrote:
> On 1/3/20 9:26 AM, Jim Brown wrote:
>> On 1/3/2020 9:15 AM, David Gilbert wrote:
>>> I modeled a simple 80m vertical with one elevated radial 10 feet 
>>> above ground
>>
>> Not the best model for evaluating the effect of wire resistance -- 
>> ground losses dominate. Better to model with a GOOD radial system.
>
> or model with a perfect ground - then the ground losses aren't an 
> issue and you can measure the loss in the radiator.