QRU server/responder (Dev: 2011/04/06 04:25)
- Ok, let's see how much chaos we can cause (not really).
Those of you with ?group queriable objects set up, when you get the
latest version downloaded, can you check Configure / Objects / QRU /
Enable? (If that menu item is disabled, then you don't have any ?group
objects that are enabled and with at least one via checked). That will
cause your instance to begin looking at any/all messages to QRU that it
sees. Remember, it's only going to see messages that match your filter,
but if you're running u/APWM*/APWW*, then you'll see all
Once it's up and running, send any query (starts with a ?) to QRU and
see what all responses you get. For every enabled server that hears
your query and that knows about your station, you should get an answer
showing your station's position relative to that station along with an
InRange or TooFar mention based on the Configure / Objects / QRU / Range
setting on the server. My KJ4ERJ-AL full feed instance is so-configured
so at least it should respond to anyone that queries.
No objects are harmed... er transmitted in this action as I'm too tired
to actually spin through them and calculate the necessary distances. My
plan is to trigger sending of any that match the ?group query and the
range from the requester and then reply back to the requester with the
IDs of the objects actually transmitted rather than just a count. That
might make it easier to actually FIND the object that was (hopefully)
Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
PS. Non-query messages to QRU are completely ignored as are any
messages from stations not known to the server. The entire function
goes inoperative if you disable or remove the vias from all of your
?group objects. At that point, the Configure / Objects / QRU / Enable
will also be disabled.
Oh, one other thing, any QRU activity that is detected will cause the
QRU trace log to automatically appear. This is temporary and just to
let you positively know that your server is fielding QRU stuff.
- For every over/under/layer there's a performance penalty that I'd just
as soon not pay. If you want to see it, select it in View. If you
don't, then don't select ALL or knock it out with a filter setting.
Lynn (D) - KJ4ERJ - Leaving some space for alternative APRS clients (for
On 4/11/2011 4:18 PM, Keith VE7GDH wrote:
> However, at least for users of APRSISCE/32, how about an overlay or
> an underlay? It would only be visible to the user, but it would use zero
> resources on RF. Objects could still be created to help mobile APRS
> stations, but overlays seem to work well for me in another popular APRS
> client that I use.
> 73 es cul - Keith VE7GDH
> "I may be lost, but I know exactly where I am!"