[time-nuts] frequency reference for portable operation

Bob Camp lists at rtty.us
Sun Mar 10 21:29:36 EDT 2013


With GSM you *may* have 10 ppb, you may get a lot better. With LTE you *should* get better, but you don't always. That was the downfall of the Symmetricom 2700. You are very much at the mercy of the cellphone outfit. They may or may not be paying attention. 


On Mar 10, 2013, at 8:37 PM, gary <lists at lazygranch.com> wrote:

> I haven't researched this yet, but the SDR crowd is using GSM and LTE for tuning their sample clocks.
>> https://github.com/steve-m/kalibrate-rtl
>> https://github.com/Evrytania/LTE-Cell-Scanner
> I have no idea what kind of accuracy you can get from a tower.
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