[aprssig] Event Time Data Extension Proposal

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Fri Jan 27 09:01:55 EST 2017

To reduce the length of daily events, how about:

NETMoTuWeThFr0900 becoming NETMo-Fr0900 or NETMo..Fr0900

Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32

On 1/27/2017 12:17 AM, Kenneth Finnegan wrote:
> On Thu, Jan 26, 2017 at 7:58 AM, Robert Bruninga <bruninga at usna.edu 
> <mailto:bruninga at usna.edu>> wrote:
>     VALUE: a properly formatted repeater FREQUENCY named object shows
>     all of
>     this info in a single packet:
>     [...snip...]
>     * Weekly NET times
>     * Monthly club Meeting dates
> As far as I can tell, the format for net and meeting times is only 
> mentioned in passing 3/4 of the way down on the freq spec and local 
> info pages without a specific recommendation on format. Running some 
> queries on my database of APRS traffic, it looks like the use of NET 
> and MTG notes is... remarkably low.
> To give operators more concrete guidance on what to enter, and maybe 
> even be computer-parsable, I'd like to propose and solicit feedback on 
> an "Event Time Data Extension"
> https://github.com/PhirePhly/aprs_notes/blob/master/EventTimeDataExtension.md
>   Event Time Data Extension Specification
> This document formalizes the radio net and in-person meeting time spec 
> which is mentioned in the APRS Freq Spec text file 
> (http://www.aprs.org/info/freqspec.txt). This data extension is meant 
> to indicate weekly or monthly nets/meetings which would be of interest 
> to amateur radio operators. It does not include any information on 
> where or what frequency the event happens, so that should be clear 
> from the context of the rest of the packet. (i.e. Meeting events could 
> be included in a "club shack" object beacon, and net events could be 
> in repeater object beacons or accompanied by a freq spec)
> These data extensions may be used similar to all other APRS data 
> extensions, so may be included anywhere in location packet comment 
> fields, in status packets, in object comment fields, messages, etc.
> The length of this data extension is not limited to 7 bytes and may be 
> dynamic based on the specificity of the event time.
> These data extensions are not meant to replace ISO 8601 time/date 
> stamps, which should be used for specific non-recurring events such as 
> annual hamfests.
> There is no way to express biweekly events in this extension. Other 
> methods should be used to advertise events on that schedule.
>     Extension Format
> |[Event Identifier](Week of Month)[Day of Week][Time of Day](Time zone 
> abbreviation) |
> Items in square brackets are required; those in parenthesis are optional.
> The event identifier indicates what kind of event is being advertised:
>   * |NET| - Radio net
>   * |MTG| - Club or social in-person meeting
> Week of month is optional to indicate that an event only happens on a 
> certain week of a month. Value may be one or more of:
>   * |1st|
>   * |2nd|
>   * |3rd|
>   * |4th|
>   * |5th|
> Day of week is required and indicates the days of the week an event 
> happens. Values may be one or more of:
>   * |Mo| (Monday)
>   * |Tu| (Tuesday)
>   * |We| (Wednesday)
>   * |Th| (Thursday)
>   * |Fr| (Friday)
>   * |Sa| (Saturday)
>   * |Su| (Sunday)
> The week of the month is calculated per day, not including partial 
> weeks where the day of interest falls in the previous month.
> Time of Day is required and indicates the time of the event in 24h 
> local time. It is a four digit number less than |2400|.
> The time zone abbreviation is an optional indication of which time 
> zone is used, and should only be used when near the edge of two time 
> zones and it's unclear which conventional local time to use. This 
> field should be very rarely used.
>     Examples
> |NETTu1745| - A net happens weekly on Tuesday at 5:45PM.
> |MTG2ndWe1900| - A meeting happens on the second Wednesday of the 
> month at 7PM.
> |NETMoTuWeThFr0900| - The morning talknet happens every weekday at 9AM.
> |MTG1st3rdSu1000| - Brunch is had on the first and third Sundays of 
> the month at 10AM
> --
> Kenneth Finnegan, W6KWF
> http://blog.thelifeofkenneth.com/
> _______________________________________________
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> aprssig at tapr.org
> http://www.tapr.org/mailman/listinfo/aprssig

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