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[aprssig] Track Playback: easy date/time lookups on aprs.fi

Heikki Hannikainen hessu at hes.iki.fi
Fri Sep 16 06:26:26 UTC 2011


Hi,

Here's a 1-minute video I just made, showing how to pick any day or time 
on aprs.fi (without using the export tool):

http://www.youtube.com/watch?v=IwQrWUddTXM

You can either pick a day with activity using the year => month => day 
browsing tool (it only shows days when the station has moved), OR you can 
click the calendar button and pick arbitrary start and end dates and 
times. The tool uses UTC time, so take that into account.

Max 14 days in history lookups, sorry about that.

I'm amazed at how few people have even noticed the history lookup tools. 
Are they not obvious enough? Should or could they somehow be more visible?


On Thu, 15 Sep 2011, Steve Noskowicz wrote:

> You should see years.  Click on the year then month, then date.  You may be able to
> limit it further by changing the "range" parameter, but I don't know what it specifies.
>  
> I'm only guessing, but there may be a start and finish or end parameter that can be
> specified to narrow the time span, but it looks like the default is a single date.
>  
> Raw packets on Findu can be UTC time stamped by adding a parameter "&time=1" to the URL
> and I think it may also have some start and end, or finish parameters...
>  
> --
> 73, Steve, K9DCI USN (Vet) MOT (Ret) Ham (Yet)
> --
> I served during the cold war, so you can continue to be served a cold one.
> 
> Up to date APRS Beginner Guide - updated Apr-2010
> http://K9DCI.home.comcast.net
> Click 'APRS Beginner INFO' under Contact
>  
> More Details, Features and Downloads at:
> http://k9dci.home.comcast.net/
> 
> --- On Thu, 9/15/11, Steve Noskowicz <noskosteve at yahoo.com> wrote:
>        
> When I drove around Crater lake I was able, quite some time later, to isolate the
> circuit on aprs.fi, but don't recall if it was only by date, or if clock-time
> limits were possible.
> --
> 73, Steve, K9DCI USN (Vet) MOT (Ret) Ham (Yet)
> --
> I served during the cold war, so you can continue to be served a cold one.
> --- On Thu, 9/15/11, lawrence labranche <capdiamont at yahoo.com> wrote:
> 
> http://aprs.fi/export/ put in your call sign, then start date/time and end
> date/time, hit search. Then download in a format of your choice.
> 
> KI6ZQY 73
> 
> _______________________________________________________________________________________________
> From: Mike Besemer (WM4B) <mwbesemer at cox.net>
> To: 'TAPR APRS Mailing List' <aprssig at tapr.org>; APRS at yahoogroups.com
> Sent: Thursday, September 15, 2011 4:50 PM
> Subject: [aprssig] Track Playback?
> 
> Is there a way to play back an APRS track, or at least isolate a track for a
> given day.
> 
> I just got a visit from the local Sheriff.  Apparently, someone in my
> neighborhood is accusing me of running her off the road into a mailbox at
> about 1900 EDT (2300 UTC) last night (14 Sep).  The problem is, my truck was
> parked in the driveway from about 1607 EDT until about 1800 EDT, at which
> point I moved it out of the way so my wife could get by and re-parked it -
> there was one beacon at about 1800 EDT and that was it until this morning.
> 
> I've pulled the raw packets from ARPS.FI, but the track is pretty much
> useless since it was pretty much duplicated today.  The raw packets show the
> times of the beacons, but nothing like that.
> 
> At this point, the Sheriff is just making a report and it's a case of
> he-said/she-said... unless she takes it to civil court.  If that's the case,
> I would like to have my ducks in a row ahead of time.  (I'm already getting
> statements from the neighbors.)
> 
> Any ideas?
> 
> Thanks es 73,
> 
> Mike
> WM4B
> WM4B-9 
> 
> 
> 
> _______________________________________________
> 
> 
> 
> 
> _______________________________________________
> 
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> _______________________________________________
> 
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>

   - Hessu


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