APRS

1 Modem

MicroModem: http://unsigned.io/

2 结构

Tier 2 Network: http://www.aprs2.net/

Tier 2 Network Server Monitor: http://www.aprs2.net/mon.htm

Tier 2 Server List: http://www.aprs2.net/APRServe2.txt

3 网关 (iGate)

3.1 Windows

aprsg, aprx, or aprs4r in Linux

APRSIS32 in Windows

http://www.g4ilo.com/usblink.html

3.2 Linux

Intro: http://www.aprs-is.net

javAPRSSrvr for all platform

aprsc for UNIX/Linux

4 协议

4.1 AFSK

音频频移键控，物理层协议。用两个音频音调表示 0 和 1

4.2 AX.25

数据链路层协议

http://www.tapr.org/pub_ax25.html

http://www.tapr.org/pdf/AX25.2.2.pdf

http://www.aprs.org/aprs12.html

RAW data: http://aprs.fi/?c=raw

http://wsanders.net/aprsunproto.html

静态地图 http://aprs.fi/static/BY1WJ

4.3 向 APRS-IS 直接推送消息

1. 连接服务器

$ nc 66.109.111.25 14580
# aprsc 2.0.0-gf5e3f21

2. 登陆

直接向 APRS 网络推送消息，需要身份验证，需要业余无线电呼号和 passcode。passcode 的申请，请写一个申请 email 给 pete@ae5pl.net

$ nc 66.109.111.25 14580
# aprsc 2.0.0-gf5e3f21
user YOUR_CALL_SIGNE pass YOUR_PASSCODE -1 ver "manual login".net

成功后会看到服务器返回：

 # logresp YOUR_CALL_SIGNE verified, server FIFTH

3. 推送消息

YOUR_CALL_SIGNE>APDR12,TCPIP*,qAC,T2CSNGRAD::EMAIL     :aprs-go@gmail.com testing via aprs{1

很快你就能在推送消息的服务器监控页里： http://66.109.111.25:14501 看到有你呼号的那一行的 'Packets Rx' 列，记数加了一个

可以在这个地址直接查看：http://aprs.fi/?c=raw&call=YOUR_CALL_SIGNE 刚刚推送的消息

4.4 RAW Data 分析

APRSdroid 发送：

2013-04-15 07:20:39 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2GYOR::EMAIL    :help.eprs@gmail.com testing via aprs{1
2013-04-15 07:22:09 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2GYOR::EMAIL    :help.eprs@gmail.com testing via aprs{1
2013-04-15 07:43:11 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2GYOR:=4000.00N/11631.20E$ http://aprsdroid.org/
2013-04-15 07:43:11 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2GYOR::EMAIL    :help.eprs@gmail.com testing via aprs{1
2013-04-15 23:06:00 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2HAM:=4000.00N/11631.20E$ http://aprsdroid.org/
2013-04-15 23:06:00 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2HAM::EMAIL    :help.eprs@gmail.com testing via aprs{1
2013-04-15 23:06:00 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2HAM::SMS      :help.eprs@gmail.com testing msg {1
2013-04-15 23:08:58 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2HAM:=4000.00N/11631.20E$ http://aprsdroid.org/
2013-04-15 23:08:58 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2HAM::SMS      :help.eprs@gmail.com testing msg {1
2013-04-15 23:08:58 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2HAM::EPRS     :tesing msg msg{1
2013-04-16 06:45:48 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2CSNGRAD:=4000.00N/11631.20E$ http://aprsdroid.org/
2013-04-16 06:45:48 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2CSNGRAD::EMAIL    :help.eprs@gmail.com testing via aprs{1
2013-04-16 06:45:48 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2CSNGRAD::EPRS     :tesing msg msg{1
2013-04-17 02:42:03 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2CSNGRAD:=4000.00N/11631.20E$ http://aprsdroid.org/
2013-04-17 02:42:03 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2CSNGRAD::EPRS     :tesing msg msg{1
2013-04-17 03:04:20 CDT: BY1WJ-5>APDR12,TCPIP*,qAC,T2CSNGRAD::EPRS     :tesing messages{1

手持台发送：

2013-05-22 23:52:01 PDT: BH1RBH-7>SYUYQ1,WIDE1-1,WIDE2-1,qAS,BY1WJ:',7ll,'K\>=
2013-05-25 09:26:49 PDT: BH1RBH-7>0PPPZZ,WIDE1-1,WIDE2-1,qAR,BH1RBH-1:'vX<0x1c><0x1c> <0x1c>K\>EPRS= [Latitude and longitude are both 0]
2013-05-25 09:38:42 PDT: BH1RBH-7>APK003,WIDE1-1,WIDE2-1,qAR,BH1RBH-1::EPRS     :test{0
2013-05-25 19:57:51 PDT: BH1RBH-7>APK003,WIDE1-1,WIDE2-1,qAR,BH1RBH-1::EMAIL    :liuhelga@gmail.com eprs testing msg via aprs{3
2013-05-25 20:33:32 PDT: BH1RBH-7>APK003,WIDE1-1,WIDE2-1,qAR,BH1RBH-1::BH1DCY-9 :73{5
2013-05-26 19:03:32 PDT: BH1RBH-7>3YUYZL,WIDE1-1,WIDE2-1,qAS,BY1WJ:`,6tl?XK\>EPRS=
2013-05-26 19:04:21 PDT: BH1RBH-7>3YUYZL,WIDE1-1,WIDE2-1,qAR,BH1RBH-1:`,6zlR}K\>EPRS=
2013-05-28 23:26:08 PDT: BH1RBH-7>3YUYQ1,APRSAT,WIDE1-1,WIDE2-1,qAR,BH1RBH-1:`,7ll"H[/>EPRS=
2013-05-28 23:27:55 PDT: BH1RBH-7>3YUYQ1,APRSAT,WIDE2-1,qAR,BH1RBH-1:`,7ml!t[/>EPRS=
2013-05-29 18:36:08 PDT: BH1RBH-7>3YUYS6,WIDE1-1,qAR,BH1RBH-1:`,6ulRg[/>EPRS=
2013-05-29 20:40:40 PDT: BH1RBH-7>0PPPPP,BH1RBH-1,WIDE2-1,qAS,BY1WJ:'vX<0x1c><0x1c> <0x1c>[/>EPRS= [Latitude and longitude are both 0]
2013-05-29 20:41:59 PDT: BH1RBH-7>0PPPPP,BH1RBH-1,qAS,BY1WJ:'vX<0x1c><0x1c> <0x1c>[/>EPRS= [Latitude and longitude are both 0]
2013-05-30 20:58:33 PDT: BH1RBH-7>APK003,WIDE1-1,WIDE2-1,qAS,BY1WJ::BH1RBH-7 :home alarm!{9
2013-05-30 21:18:59 PDT: BH1RBH-7>3YUYQ1,WIDE1-1,WIDE2-1,qAR,BH1RBH-1:`,7ml"q[/>EPRS=
2013-05-30 21:42:38 PDT: BH1RBH-7>3YUYQ0,WIDE1-1,WIDE2-1,qAS,BY1WJ:`,7ml5![/>EPRS=