[time-nuts] adafruit $40 GPS

Don Latham djl at montana.com
Tue May 14 14:52:16 EDT 2013

All the adafruit modules have built-in patch antennae. id 746 has
provision on the breakout board for an external antenna. That shiny
patch with the oddly-placed little solder knurdle on it is a patch
George Lu
> On Tue, May 14, 2013 at 9:02 AM, Chris Albertson
> <albertson.chris at gmail.com>wrote:
>> The adafruit GPS has a built in antenna.  But you can add an external
>> one.
>> But why use this for timing?  They don't even give a spec for timing
>> accuracy and it is likely NOT a timing GPS.  It is  a navigation unit.
>>  Pretty much useless for timing.
> According to the documentation at
> http://www.adafruit.com/datasheets/GlobalTop-FGPMMOPA6H-Datasheet-V0A.pdf:
> High accuracy 1-PPS timing support for Timing Appli
> cations (10ns jitter)
> George
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"Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for thence comes quiet to the mind."
De Erroribus Medicorum, R. Bacon, 13th century.
"If you don't know what it is, don't poke it."
Ghost in the Shell

Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304

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