Dave,
I was thinking that a radiator had 2 ends. You corrected me: it has an
end. I was referring to what must be a beginning. Therefore I agree. At
the beginning, however, there is some current flow.
-Rex-
K1HI
Rex Lint
Merrimack, NH
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of David Gilbert
Sent: Thursday, May 21, 2009 12:52 AM
To: Rex Lint
Cc: 'TowerTalk'; 'Arthur Trampler'
Subject: Re: [TowerTalk] MACAntenna
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@contesting.com
> [mailto:towertalk-bounces@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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