[time-nuts] trimble antenna connector

["Björn"]

Hi Eric,

Because they were designed to use cheap 75ohm cable-tv/satellite cables
which usually go with F connectors. The companion Bullet antenna also have
F connector.

>From the Tbolt manual

"RG-59 is a 75 ohm coaxial cable. The ThunderBolt and Bullet II HE antenna
are compatible with 75 ohm cable. Compared to most 50 ohm cable, 75 ohm
cable provides superior transmissibility for the 1.5 GHz GPS signal and a
better quality cable for the price. Mismatched impedance is not a
problem."

--

     Björn

> why do older  thunderbolts use an F connector for the antenna? (the
> current version uses a BNC).
> It seems like it needlessly complicates installation at a base station.
>
> I've always wondered this.
>
> --
> --Eric
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> Eric Garner
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