[TowerTalk] Re: 40m beam with wires dangling down

[david jordan]

Yes, I agree.  Just depends on ones preferences. I don't have a problem 
with lumped inductance, relays and such. Someone asked so I offered an 
alternative that I know works.  I'd be happy with either because I'm not 
a contester at the moment. So, a fixed bandwidth with the more 
conventional turn it to talk to them would be fine for me.  For 
contesting I'm sure one would appreciate having all the features you 
describe!

73,
dave
wa3gin

Jim Lux wrote:

> At 02:54 PM 11/5/2003 -0500, david jordan wrote:
>
>> Yes, you would modify the stepper such that when the copper element 
>> inside the fiberglass tube reached full extention the copper tape 
>> would make a connection with the dangling wire.
>>
>> I don't have a stepper so I don't have a mechanical solution for the 
>> contact arrangement that I can describe for you.  I'll bet there are 
>> skilled folks on this reflector who could come up with something that 
>> works well and last a long time.
>
>
> Uhhh.. but then you wouldn't be able to adjust the element length in 
> the loaded condition.  You'd not be able to do all the cool stuff like 
> tuning for environmental effects, swapping 180, etc.
>
> What about vacuum relays and ow loss coils at the feedpoints of the 
> elements?  Seems like that would be a fairly simple solution, and 
> you've already got some cabling going to the element for the motor 
> control.
>
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