Since adding the gps.conf, which is working and puts me on the aprs maps, I started getting the following messages on the console….
[Jan 24 08:59:57] WARNING[2659]: chan_usbradio.c:2152 sound_thread: select failed: Interrupted system call
[Jan 24 09:00:07] WARNING[2659]: chan_usbradio.c:2152 sound_thread: select failed: Interrupted system call
[Jan 24 09:00:17] WARNING[2659]: chan_usbradio.c:2152 sound_thread: select failed: Interrupted system call
[Jan 24 09:00:27] WARNING[2659]: chan_usbradio.c:2152 sound_thread: select failed: Interrupted system call
[Jan 24 09:00:37] WARNING[2659]: chan_usbradio.c:2152 sound_thread: select failed: Interrupted system call
[Jan 24 09:00:47] WARNING[2659]: chan_usbradio.c:2152 sound_thread: select failed: Interrupted system call
I then enabled debugging in the gps.conf file and this is what I got…
[Jan 24 09:14:22] NOTICE[2658]: app_gps.c:456 gpsthread: got lat: 4030.48N, long: 08859.28W, elev: 123.4M
[Jan 24 09:14:22] WARNING[2659]: chan_usbradio.c:2152 sound_thread: select failed: Interrupted system call
[Jan 24 09:14:22] NOTICE[2658]: app_gps.c:518 gpsthread: sent packet: user wb9uus-r pass 18598 vers “Asterisk app_gps”
[Jan 24 09:14:22] NOTICE[2658]: app_gps.c:527 gpsthread: sent packet: wb9uus-r>APRS,qAR,wb9uus-VS:=4030.48N/08859.28WrPHG9580/AllStar Node 27468
[Jan 24 09:14:32] NOTICE[2658]: app_gps.c:456 gpsthread: got lat: 4030.48N, long: 08859.28W, elev: 123.4M
[Jan 24 09:14:32] WARNING[2659]: chan_usbradio.c:2152 sound_thread: select failed: Interrupted system call
[Jan 24 09:14:42] NOTICE[2658]: app_gps.c:456 gpsthread: got lat: 4030.48N, long: 08859.28W, elev: 123.4M
[Jan 24 09:14:42] WARNING[2659]: chan_usbradio.c:2152 sound_thread: select failed: Interrupted system call
[Jan 24 09:14:52] NOTICE[2658]: app_gps.c:456 gpsthread: got lat: 4030.48N, long: 08859.28W, elev: 123.4M
[Jan 24 09:14:52] WARNING[2659]: chan_usbradio.c:2152 sound_thread: select failed: Interrupted system call
[Jan 24 09:14:52] NOTICE[2658]: app_gps.c:518 gpsthread: sent packet: user wb9uus-r pass 18598 vers “Asterisk app_gps”
[Jan 24 09:14:52] NOTICE[2658]: app_gps.c:527 gpsthread: sent packet: wb9uus-r>APRS,qAR,wb9uus-VS:=4030.48N/08859.28WrPHG9580/AllStar Node 27468
[Jan 24 09:15:02] NOTICE[2658]: app_gps.c:456 gpsthread: got lat: 4030.48N, long: 08859.28W, elev: 123.4M
[Jan 24 09:15:02] WARNING[2659]: chan_usbradio.c:2152 sound_thread: select failed: Interrupted system call
**I suspect that it is expecting a radio to be connected for it to send packets out over the air. **
How do I configure this so it can work or, if that isn’t what it is about, then how do I get rid of the warning?
Chuck Henderson, WB9UUS
···
On Sun, Jan 23, 2011 at 6:42 PM, Jim Duuuude telesistant@hotmail.com wrote:
it was!! 
Date: Mon, 24 Jan 2011 00:27:16 +0200
Subject: RE: [App_rpt-users] aprs password for app_gps
From: yo3iiu@yo3iiu.ro
To: telesistant@hotmail.com
CC: yo3iiu@yo3iiu.ro; rpt2@chuck.midlandsnetworking.com; app_rpt-users@ohnosec.org
The protocol is quite simple and the source for callpass is included in
the xastir source. Though, reverse engineering it seems a lot more fun 
Regards,
Bogdan - YO3IIU
The heck with all this confusion regarding APRS passwords!!
I just reverse engineered the password algorithm and will make
a password generator (and will also automatically generate a password
for Portal-generate configurations).
JIM
Date: Sun, 23 Jan 2011 15:49:55 +0200
From: yo3iiu@yo3iiu.ro
To: rpt2@chuck.midlandsnetworking.com
CC: app_rpt-users@ohnosec.org
Subject: Re: [App_rpt-users] aprs password for app_gps
The APRS-IS password could be generated using the callpass utility that
comes with xastir.
Bogdan - YO3IIU
I would like to set up my allstarlink system to report position
information
to the aprs system.
Can someone tell me how to set up this password? Also, are the
default
server and port listed in the example below what should be used?
I have searched the aprs site and couldn’t find who to request this
information from.
Chuck Henderson, WB9UUS
; Configuration for app_gps
;
[general]
call = wb9uus-2 ; callsign (including SSID) for APRS
purposespassword
= 12345 ; Password for APRS-IS server for above callsign
comment = AllStar Node 27468 ; Text to be displayed associated with
this
station*server = second.aprs.net ; APRS-IS server to report
information
to**port = 10151 ; port on server to send data*
icon = r ; A CAR (default) Icon do be displayed for station on
APRS
display (see below)
comport = /dev/ttyS0 ; Serial port for GPS receiver (specify this
only
if using GPS receiver)
baudrate = 4800 ; Baud rate for GPS receiver (specify this only if
using GPS receiver)
;debug = y ; set this for debug output
freq=442.700 ; Display Frequency of station
tone=107.2 ; CTCSS tone of station (0.0 for none)
lat=40.508 ; Fixed (default) latitude in decimal degrees
lon=-88.988 ; Fixed (default) longitude in decimal degrees
elev=123.4 ; Elevation of Antenna in Meters (NOT HAAT)
power=9 ; Power level (see below)
height=5 ; Antenna Height in HAAT (see below)
gain=8 ; Antenna Gain (see below)
dir=0 ; Antenna Direction (see below)
On Sat, Jan 22, 2011 at 10:30 PM, Jim Duuuude > > >> >> telesistant@hotmail.comwrote:
There have (obviously) been some changes/improvements made to the
Echolink and APRS/GPS subsystems within app_rpt.
Included in these is the ability for a node to report its “fixed”
GPS
coordinates
to the APRS network, even if it does not have a GPS receiver
connected.
Please see the following:
Setting up Echolink Connectivity
http://209.159.155.200/drupal/node/56
Setting Up APRS and GPS Configuration
http://209.159.155.200/drupal/node/179
Of course, the latest copies of app_gps and chan_echolink need to be
downloaded from the SVN.
JIM WB6NIL
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