[time-nuts] Affordable (cheap) COTS / eBay kit for TIE / 1PPS phase comparison

[Tom Van Baak (lab)]

As much as I'm fond of my picPET it has 400 ns resolution and not intended to replace a 5 or 10 or 50 ns TIC (which is what the OP asked for).

/tvb (i5s)

> On Jan 22, 2014, at 5:12 PM, Robert Atkinson <robert8rpi at yahoo.co.uk> wrote:
> 
> Hi,
> For a low cost startup have a look at a picPET 
> < http://www.leapsecond.com/pic/picpet.htm > and TimeLab
> < http://www.ke5fx.com/timelab/readme.htm >
>  Less than $10 including shipping!
> 
> 
> 
> 
> ________________________________
> From: Wojciech Owczarek <wojciech at owczarek.co.uk>
> To: Discussion of precise time and frequency measurement <time-nuts at febo.com> 
> Sent: Wednesday, 22 January 2014, 1:23
> Subject: [time-nuts] Affordable (cheap) COTS / eBay kit for TIE / 1PPS phase    comparison
> 
> 
> Hi List,
> 
> I'm a software developer turned network test engineer slowly turning
> time&frequency guy (not sure if this is upwards or downwards ;-) ) with
> some distant background in electronic engineering.
> 
> For the last couple of years I have been increasingly involved in various
> work involving IEEE 1588 and finally I started fitting out a small home lab
> setup. I never really needed lab kit at home before and my work lab is
> primary to do with Ethernet and IP (and timing, but outside my price
> ranges), so I was wondering if you could point me in the right direction:
> 
> I'm looking for some reasonably inexpensive solution to allow me a) to do
> TIE measurements of 1PPS signals against a reference and b) do phase
> comparisons of different 1PPS signals - so something with REF and at least
> two inputs.
> 
> I have an OCXO GPS reference (upgradable to Rb) with 1PPS, 5MHz and 10MHz
> outputs which is stable enough for my needs so that part (perhaps most
> important) is sorted. In terms of requirements, granularity wise, well, as
> good as achievable - I'm used to 10 ns and 5 ns granularity with TIE that I
> get from work kit. 50 ns or better would be perfect.
> 
> I must add that ideally I would like to avoid having to design or build the
> kit myself - I would love a project, but I have time to spare to complete
> one.
> 
> Any pointers much appreciated.
> 
> Best regards
> Wojciech
> 
> -- 
> -
> 
> Wojciech Owczarek
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