[time-nuts] nuts about position

Magnus Danielson magnus at rubidium.dyndns.org
Fri Jun 1 13:00:32 EDT 2018


Hi,

Well, when the resolution and stability is sufficient, other aspects
weigh in, as being quick to have reduce biases in position and time.
You can resolve much by averaging etc. but that takes time.

Cheers,
Magnus

On 06/01/2018 02:10 PM, Bob kb8tq wrote:
> Hi
> 
> I can’t say that’s a big surprise. The silicon on these gizmos made it past the “overkill” point at least 
> a decade ago. There’s only so much you can do with a noisy signal ….. Yes, there are indeed feature
> differences, ( like the Furuno pps ). The core of the device seems to have hit a limit a while ago. 
> 
> Bob
> 
>> On May 31, 2018, at 11:15 PM, Mark Sims <holrum at hotmail.com> wrote:
>>
>> I did another test to see if the M8T offered any positioning advantage over the old (and cheap) LEA-4T and LEA-5T devices.   I drove the M8T and LEA-4T with the same antenna,  collected data for 12 hours,  beamed the RINEX files to Canada.
>>
>> The results matched to within 3mm...  so, again, the M8T doesn't offer much benefit for getting precise positions.
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