[time-nuts] trimble antenna connector

Robert Atkinson robert8rpi at yahoo.co.uk
Fri Oct 4 14:01:19 EDT 2013


Trimble recommend 75R CATV or similar cable for the Thunderbolt as it's lower loss (even with the mismatch loss to 50R it's an advantage), hence the F type plugs. Adaptors are cheap and available even here in the UK where the F type is a fairly new entry into the market. Using 75R cable with F plugs is even easier.

Robert G8RPI.

 From: Eric Garner <garnere at gmail.com>
To: Discussion of precise time and frequency measurement <time-nuts at febo.com> 
Sent: Friday, 4 October 2013, 17:38
Subject: [time-nuts] trimble antenna connector

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 Garner
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