[time-nuts] GPS Signal Strength Through Roof?

Rob Kimberley rk at timing-consultants.com
Mon Mar 19 14:55:11 EDT 2007


Jason,

Loss in the cable will be in the range of 5 - 7 dB plus connector losses. 
Let's say about 10dB max.

Looks OK to me.

Good luck!!!

Rob
----- Original Message ----- 
From: "Jason Rabel" <jason at extremeoverclocking.com>
To: "'Discussion of precise time and frequency measurement'" 
<time-nuts at febo.com>
Sent: Monday, March 19, 2007 6:41 PM
Subject: Re: [time-nuts] GPS Signal Strength Through Roof?


> Rob,
>
> I was just going to use some RG-58, and if I can mount it in the attic 
> then
> I probably won't need to run more than 15-20ft at most. Loss along the 
> cable
> should be minimal since the run will be short, I just didn't know how much
> the roof would block the signal.
>
> Jason
>
>
>
>>Jason,
>>
>>I'm using 4 VIC-100s inside, under a flat concrete roof in my single story
>>office. Tracking 8 satellites on each receiver module on both my CommSync
>>units. Each one connected to Rx via a coiled up 50 ft length of RG-59.
>>
>>Yours should work OK. What cable and what length are you planning on 
>>using?
>>
>>Temp specs on my antennae are -40 to +85C operating which is typical for
>>this type of product. Don't think it gets that hot in Houston!!
>>
>>Cheers
>>
>>Rob K
>
>
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