[time-nuts] GPS splitter

Charles Steinmetz csteinmetz at yandex.com
Sat Jun 17 00:09:05 EDT 2017

Clay wrote:

> If sharing an active GPS antenna, do you have to DC block all but one
> receiver port to prevent multiple receivers trying to supply current to
> the antenna?

Yes.  Note that you may need to put DC loads on the other receivers to 
fool them into thinking they have an antenna attached (otherwise they 
may report an antenna fault and refuse to operate).

> On say a 26dB antenna (ignoring line loss, power divider insertion loss,
> et al), what is the effective gain to each receiver?

Splitters often have amplifiers so they provide unity gain to all output 

Best regards,


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