[USRP-users] GPS antenna with power splitter

hossein talaiee h.talaiee at gmail.com
Mon Nov 27 09:40:31 EST 2017


There is no difference but at least 3dB loss for GPS signal that has no
noticeable adverse effect on GPSDO performance

On Mon, Nov 27, 2017 at 5:13 PM, Hojoon Yang via USRP-users <
usrp-users at lists.ettus.com> wrote:

> Hi.
>
>
>
> I have two USRP B200 and each USRP is equipped with GPSDO. Also, I have
> one 5v active GPS antenna, and one power divider(1 input and 2 outputs)
> whose operation frequency is 0.7~2.7GHz.
>
>
>
> In power divider, the input port is connected to the GPS antenna and each
> output port is connected to a different GPS ANT port on the USRP B200.
>
>
> I want two USRP B200 to receive GPS signal from only one antenna. That's
> why I use power divider.
>
>
>
> So, I wonder this configuration works well compared to two GPS antenna
> configuration (i.e. each USRP are connected to their own GPS antenna).
>
>
>
> Is there "any" dis-advantage compared to two antenna config?
>
>
>
> I tested it and observed that both USRP's GPS ANT LED was "green" and
> seems to work but not sure. I executed the sync_to_gps program for both
> USRP and it worked well.
>
>
>
> Thanks.
>
>
>
> Regards,
>
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>
>
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