[time-nuts] Freestanding mast

Bob Camp lists at rtty.us
Fri Sep 3 13:17:23 UTC 2010


Hi

With enough output from a laser you could balance it on the beam. Might bother the neighbors for a few (dozen) miles around.

Bob 



On Sep 3, 2010, at 4:48 AM, Neville Michie <namichie at gmail.com> wrote:

> You could try a box kite,
> or a tethered balloon.
> An interesting project would be a computer controlled kite
> servoed to hold a constant position.
> Or a sky hook?
> What about a remote site with a radio or laser link to your QTH?
> The more ideas that you start with the more likely you will find a good solution.
> cheers,
> Neville Michie
> 
> 
> 
> On 03/09/2010, at 3:08 PM, Charles P. Steinmetz wrote:
> 
>> Stanley wrote:
>> 
>>> ROHN 9H50 34 Foot Telescopic TV Wireless Antenna Push Up Mast
>> 
>> Interesting suggestion.  Rohn is well known to me, though I don't typically think of them for things like push-up masts.
>> 
>> For those suggesting 6-10' of pipe, at my rooftop I get a reception cone of about 50 degrees elevation and above during the vegetated months (say, mid-March through mid-November), and about 30 degrees and above in the dead of winter, due mostly to dense tree cover that is 60-80 feet tall.  So, I'd really need to get 20 feet + above the chimney (50+ feet above the ground) for a significant improvement.  The suburban residential lot size doesn't leave me much to work with (no centrally-located tower, therefore no guys unless I negotiated easements with the neighbors, and Hell will never be that cold...).  I doubt I could get a permit for 80' of Rohn 55.  Maybe if I put a wind generator on it....
>> 
>> Thanks again,
>> 
>> Charles
>> 
>> 
>> 
>> 
>> 
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