[time-nuts] TrueTime GPS100 antenna info

John Pettitt jpp at cloudview.com
Sat Mar 18 13:15:02 EST 2006

Don Mimlitch wrote:
> John:
> I have several older TrueTime Units:
> NTS-200 -------- 12V
> MkIII GPS-DC --- 12V
> XL-AK ---------- 12V IF (has built in Up Converter Option)
> If your manual doesn't specify the Power
> requirements for the antenna, 
> use a volt meter to measure
> the voltage across the Antenna Connector 
> with Power on.
> On eBay you can Find a 3-12V Marine Antenna:
> eBay item Number 5881139622
>   If the Unit requires a IF Antenna That will be Harder. There is a 
>   Symmetricom IF Antenna on eBay (eBay Number 7601024996)
>   but it is 5 Volt. You would need a Bias Tee 
>   (ebay #7511144932  but it has SMA Connectors which are a little inconvienient.)
I just measured it at 5V and looking inside it's a trimble oem gps
module (CV6?) so I'm pretty sure it's not an IF antenna.   Thanks to
ebay an antenna is now on order.


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