[time-nuts] Advice on sighting a roof mounted gps area please

paul swed paulswedb at gmail.com
Sun Oct 12 10:19:09 EDT 2014


Tim
The antennas should not interfere with each other due to rf leakage because
of the way the systems are designed. I will believe you are using 2 rf
feeds.
The more you can clear the trees the better. My very simple solution is a
90' tower.
A bit of humor it does have other uses.
Regards
Paul
WB8TSL

On Sun, Oct 12, 2014 at 7:34 AM, swingbyte <swingbyte at exemail.com.au> wrote:

> Hi All,
> I am building a house extension and part of the works involves adding a
> new hip roof made of corrugated iron.  I was thinking I would pass a 50mm
> pvc pipe through the roof with a tee and then mount two conical gps timing
> antennas on top of it.  I am in a low point and don't have visibility of
> the horizons ( I'm not in the out-back).
> My question is should I mount on the peak of the roof?  How close can I
> mount two antennas from each other? Can they interfere with each other?  I
> am also in the midst of some tall trees - although my new roof will be
> pretty high it will still be below the tallest trees.
> Of course the main reason for this is I want to do some accurate timing
>
> ASCII art of proposed set-up
>
>   A                  A
>   |                  |
>   --------------------
>            |
>            |
>            ^
>           /  \
>          /    \
>         / roof \
>
> Thanks for your advice
>
> Tim
>
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