[time-nuts] Mounting GPS Antenna on Steel Roof

Brian Kirby kirbybq at bellsouth.net
Wed Mar 5 02:53:24 UTC 2008


Consider a television tripod and mast to elevate the GPS antenna above 
the roof...

Jack Hudler wrote:
> I use a Fiber Optic Antenna Link FOL-100 from Truetime. However, I don't
> know of anything else out there does something similar. 
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Matthew Smith
> Sent: Tuesday, March 04, 2008 3:36 AM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Mounting GPS Antenna on Steel Roof
>
> Quoth Rob Kimberley at 2008-03-04 19:29...
>   
>> Height of antenna is not important, but being clear of obstructions and
>> large metallic objects are. Can you mount it on a pole at the end of the
>> garden? 
>>     
>
> I can, but the end of the garden is some 50 metres from the house, which
> brings back my concern of excessive cable lengths.
>
> We're in a bit of a weird situation - it's a rural location, but there
> are sheds, water tanks and all sorts dotted around and cables can only
> really be run along (steel) fences as vehicular access is required all
> around.  (Think of a farm and you wouldn't be far off.)
>
> I had thought about putting the time server in the big shed and running
> an underground Ethernet cable (this is a fairly reasonable proposition)
> until the reflection issue came up - the shed (also steel) has a North
> to South roof, so the problem would be even worse.
>
> Cheers
>
> M
>
>   




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