[time-nuts] GPS antenna in attic?

Scott McGrath scmcgrath at gmail.com
Mon Nov 26 18:52:26 UTC 2012


They are no harder than a chimney to keep leakproof unless they are flush in which case everything said is true.   You need structure and a leakproof membrane and proper flashing to redirect water

Sent from my iPhone

On Nov 26, 2012, at 10:38 AM, "J. Forster" <jfor at quikus.com> wrote:

> I considered that about 5 years ago when I reroofed. The roofing
> contracctor told me that anything like a skylight is very, very hard to
> make and keep leakproof. You really, really don't want a leaky roof.
> 
> -John
> 
> =================
> 
>> Or install a frosted dome type skylight as a radome lights the attic and
>> allows for better reception
>> 
>> Sent from my iPhone
>> 
>> On Nov 25, 2012, at 10:15 PM, "J. Forster" <jfor at quikus.com> wrote:
>> 
>>> There are ways to do it w/o drilling holes. Most all houses have vent
>>> stacks for the plumbing, typically 3 or 4 inch cast iron or thick
>>> plastic.
>>> 
>>> You can clamp a couple of feet of pipe onto one of those and run the
>>> wire
>>> to under an eve or through a gable end, adding a drip loop of course.
>>> 
>>> But, if it were my house and I just wanted to discipline my local
>>> standard, I'd try the attic first. Among other things, you can get to
>>> the
>>> antenna w/o climbing on the roof!
>>> 
>>> New England is not sunny CA.
>>> 
>>> -John
>>> 
>>> ================
>>> 
>>> 
>>> 
>>>> On Sun, Nov 25, 2012 at 8:50 AM, Peter Gottlieb <nerd at verizon.net>
>>>> wrote:
>>>> 
>>>>> I'm beginning to set up in my new house and planning where all my
>>>>> various
>>>>> antennas are going to go.  Being a wood frame building, I was
>>>>> wondering
>>>>> if
>>>>> it was sufficient to simply mount my Thunderbolt GPS antenna high in
>>>>> the
>>>>> attic.
>>>> 
>>>> 
>>>> It will work but it will be far from optimal.  All you need to do is
>>>> get a
>>>> big drill bit and  drill through the roof and put up an iron galvanized
>>>> pipe.  Put a pipe flange on the end and bolt the GPS antenna to that.
>>>> You
>>>> will need some metal flashing and roofing tar and then you will have a
>>>> first class setup.  You run the coax down the pipe.   The timing
>>>> antennas
>>>> are pointed on top so snow falls off
>>>> 
>>>> Chris Albertson
>>>> Redondo Beach, California
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>>> 
>>> 
>>> 
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> 
> 



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