[time-nuts] Thunderbolt antenna

Volker Esper ailer2 at t-online.de
Sun Mar 10 11:01:45 EDT 2013

Hi Peter,

Why not. The antenna is optimized for that purpose (receiving GPS L1), 
omnidirectional and tuned to the GPS frequency, snow skids down, birds 
can't land on it. As N0UU affirms, there's nothing further sensational 

I don't know, how proficient you are with radio frequency stuff, but a 
gain of 35dB does not guarantee a good reception. You primarily need 
gain to compensate (cable) losses. The noise figure (NF), for example, 
can get much more important.

What antenna do you use at the time? If you are using a magnetic car 
roof antenna a Trimble Bullet surely will be a better choice...

There are lots of GPS antennas on ebay for even less than 30 Dollars. I 
run four different antennas, which I purchased from ebay and none of 
them has failed so far.


Am 10.03.2013 06:07, schrieb Peter Gottlieb:
> I'd like to get a better antenna for my Thunderbolt.
> I see Trimble bullet antennas type 57860-00 on ebay for $30 or so, 
> specs look to be 5 volt 35 dB gain.
> Would something like this be a good choice?
> Peter
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