[TowerTalk] MACAntenna

[David Gilbert]

No it doesn't.  The end is the end, and there isn't any current flow at 
the end of a wire ... unless you have arcing out into the air or 
something obscure like that..

Besides, he was clearly referring to the portion of the wire connected 
to the relays.  That's an end.

Dave   AB7E



Rex Lint wrote:
> "And no, the voltage is a maximum at the end of a radiator ... how can 
> you have current flow at that point when there is no place for it to go???"
>
> ... depends on which end...
>
>       -Rex-
>  
>      K1HI
>        Rex Lint
>        Merrimack, NH
>
>
> -----Original Message-----
> From: towertalk-bounces at contesting.com
> [mailto:towertalk-bounces at contesting.com] On Behalf Of David Gilbert
> Sent: Wednesday, May 20, 2009 2:48 PM
> To: Arthur Trampler; TowerTalk
> Subject: Re: [TowerTalk] MACAntenna
>
>
> That's like saying a 2 inch air gap is going to break down at the same 
> voltage as a 1 inch air gap because the first inch will break down and 
> then the second.
>
> And no, the voltage is a maximum at the end of a radiator ... how can 
> you have current flow at that point when there is no place for it to go???
>
> Dave   AB7E
>
>
>
>
> Arthur Trampler wrote:
>   
>> By putting two relays in series, don't you create a situation where there
>>     
> would be a voltage breakdown nearest the RF, and then a second voltage
> breakdown/arc at the second relay?
>   
>>  
>> I guess I'm not seeing how two in series increases voltage handling, as to
>>     
> me it would seem that the relay with RF on one side is still the same size
> and as prone to arcing at a given voltage.
>   
>>  
>> However, isn't voltage at a minimum at the end of a full-sized 1/4 wave
>>     
> radiator (half of a dipole) and current at a maximum?
>   
>>  
>> Art
>>     
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