[time-nuts] GPS Timing Source -- looking at buying

[Hal Murray]

chris at archnetnz.com said:
> I found this one:  Garmin GPS 18 PC GPS Engine

> http://www.triginstruments.co.nz/catalog/product_info.php?products_id=1301&os
> Csid=b80759ac903096c20d806ddeb3d71121

> Which is the 18X and looking at the manual for it, it says it's 1pps with 1
> microsecond accuracy.

Yup.  That URL is for the LVC version.  The PC version is the one powered 
from a cigarette lighter.  (Your first line above says PC when I assume you 
mean LVC.)


> I am not really sure what to do -- and I have followed the mail list for a
> while, but I think I might be looking in the wrong place...

Did you check the URL I sent?  And the ones at the bottom of that page?

Look at the picture, or get the manual from the Garmin web site.  The LVC 
comes with a connector so they can test it.  You cut it off and wire it to a 
DB-9 and supply power one of several ways.  Then plug it into your serial 
port.


> I perhaps need to join an NTP mail list .. 
  http://lists.ntp.org/listinfo/questions
It's gatewayed to usenet:comp.protocols.time.ntp

Check out the archives.


> When you say 'more sensitive' what do you mean by that?

Where are you going to put it?  The GPS antenna is built into the 
hockey-puck.  You need to get the antenna into a good-enough position.  "more 
sensitive" means it's easier to find a location that's good enough to get a 
useful signal.

Trees are bad.  Houses are bad.  Mine mostly works inside my house.  It would 
work better if I put it outside.




-- 
These are my opinions, not necessarily my employer's.  I hate spam.