[time-nuts] Failure mode in GPS receivers
Magnus Danielson
cfmd at bredband.net
Sun Dec 17 16:30:46 EST 2006
From: David Forbes <dforbes at dakotacom.net>
Subject: Re: [time-nuts] Failure mode in GPS receivers
Date: Sun, 17 Dec 2006 14:09:19 -0700
Message-ID: <f06230901c1ab6169a46b@[192.168.0.14]>
Dave,
> The point is that some receivers require more RF signal from the
> antenna than others to achieve the same satellite tracking
> performance.
>
> You might try improving the S/N ratio of the failing receiver by
> bypassing the splitter and connecting it directly to the antenna,
> netting a 6 dB signal increase, to see if it gets happier.
Won't help if he has a GPS distribution amp which has 0 dB gain, i.e. the
splitting is compensated by the same amount of gain.
So, this trick only works for a passive splitter. I made sure I have an active
one.
Cheers,
Magnus
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