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[aprssig] Operator bit - present or not

Robert Bruninga bruninga at usna.edu
Wed Oct 3 13:07:14 UTC 2007

Yes, that was the original idea.

In all client software, have mouse/keyboard activity set the
Operator-Present-Bit and increase the stations refresh rate to
10 minutes.  But decay it back out.  If no activity, after 10
minutes, then return to 30 minute rate and remove the Operator
Present Bit in the position report.

Bob, Wb4APR 

> -----Original Message-----
> From: aprssig-bounces at lists.tapr.org 
> [mailto:aprssig-bounces at lists.tapr.org] On Behalf Of Bernard
> Sent: Wednesday, October 03, 2007 4:57 AM
> To: TAPR APRS Mailing List
> Subject: [aprssig] Operator bit - present or not
> I guess someone has already discussed this to death before,
but I  
> thought it might be worth a shot.
> On 2 Oct 2007, at 01:24, Robert Bruninga wrote:
> > Just a month ago, we defined a new
> > symbol "O-" for OPERATOR PRESENT.
> With regards the operator present symbol and defining if an
> is really there at the keyboard, one particular method of
testing if  
> a user is "there" used by "Internet based" Instant Messaging
> is keyboard/mouse input.
> i.e. if the user has not moved/clicked the mouse *or* typed on
> keyboard for XX time period, the user is then marked as away.
> application sets their status message as "away". This is then

> transmitted to the IM network, and their other contacts are 
> therefore  
> aware they are not listening/present.
> While this might be difficult to do on actual radio hardware  
> (D700/710/TH-d7 etc) would it be doable to implement for a
> application? Maybe its not so easy? Not being a software
person, I  
> am, of course, guessing. :)
> Feel free to dissect.
> regards,
> bernard
> ==========
> Bernard Tyers
> bernard.tyers at gmail.com
> EI8FDB.org
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