<-[[.:start]] ====== APRS ====== ** VHF and HF APRS ** ===== VHF ===== * FT8900 : 2m I-Gate **GM4SLV-2** - Raspberry Pi, TNC-Pi and APRX I-Gate software * **UPDATE 6/4/24 : 2m APRS suspended**. Coverage not adequate from low 2m antenna. * TM-D710 in van : **GM4SLV-9** - will digipeat "WIDEn-N" * TH-D72 : **GM4SLV-8** * Anytone 878 * analogue : **GM4SLV-7**, * DMR * Brandmeister -> PC 234999 (Self-Care set to **GM4SLV-7**) * DMR+/Phoenix -> PC 5057 -> **GM4SLV-7** ===== HF ===== * Occasional use of 30m AFSK 10,147.6kHz USB as **GM4SLV-10** * IC-706 and Signalink-USB soundcard ===== Software ===== * Direwolf * HF (300 baud FSK) or VHF soundcard modem/TNC * AGW Packet Engine TCP/IP interface to other software * standalone iGate and Digipeater * Xastir * Can use the Direwolf TCP/IP AGW TNC across network * WinRPR {{ :public:radio:2024:winrpr_075_2.zip |}} * Can act as TCP/IP KISS mode TNC providing 300 or 600 baud Robust Packet TX/RX and also simultaneous 300 baud FSK RX * APRSISCE32 {{ :public:radio:2024:aprsis32.zip |}} * Can use WinRPR's KISS mode TNC * UIView32 {{ :public:radio:2024:32full203.exe |}} * Needs to be registered first at [[https://www.apritch.co.uk/uiv32.htm]] * U2FsdGVkX18RT21avOp7l4/3U+Z7QxUHE46ZZg3KCJzU5unCrI08T40DgX32Cf+vb09G6DbXBzmXviRFQzEHA+JYusxmxHrb7rd/wXuFDQGmVfn3I9GrL/QCyTpwG6b8GWjBmozR9+Ec5nLbOeKQyVhZMcaRrZTi+FUBEfuxvsRjP/XkHEe58UqXx+ZYKSWOv88WTQajuXm/4LF8mg183g== * Can use Direwolf's AGW TNC across network ===== HF Frequencies ===== ==== 30m ==== * 300 Baud FSK RF centre **10149.3kHz** * 1700 Hz audio (1600/1800Hz tones) * **Dial = 10147.6kHz USB** * alternative dial = 10151.0kHz LSB (signal can be inverted without issues) * 300 baud RPR RF centre **10148.8kHz** * 1500 Hz audio * **Dial = 10147.3kHz USB** * //Normal// 300 baud AFSK resolves at 2000Hz - and is decoded by WinRPR at this offset {{:public:radio:2024:screenshot_at_2024-04-10_09-06-39.png?600|}} === Direwolf update : 10/04/24 === * Direwolf v1.6 in Debian has a minor annoyance - it decodes its own transmitted frames occasionally due to cross talk in the sound card * This is reported to be //fixed in 1.7 release// so I cloned the git repository and built the current 1.7 version * It has removed the annoyance of seeing (and reporting to APRS-IS) your own transmitted packets * There are other changes and improvements which I will investigate over time. * Steps to clone/build sudo apt-get install libavahi-client-dev git clone https://www.github.com/wb2osz/direwolf cd direwolf mkdir build && cd build cmake .. make -j4 Running the new version cd src ./direwolf -c ~/direwolf.conf A few red warnings due to changes for v1.7 not being fully compatible with the previous config options, but it runs and doesn't seem to decode its own transmissions any more. A few tweaks to the config: ADEVICE plughw:2,0 CHANNEL 0 MYCALL GM4SLV-10 #MODEM 300 7@30 MODEM 300 B+ #FIX_BITS 1 TXDELAY 50 LOGDIR . AGWPORT 8000 KISSPORT 8001 PBEACON sendto=0 via="WIDE1-1" delay=0:00 every=10:00 symbol="\-" lat=60^17.31N long=1^25.51W comment="30m HF Direwolf AFSK" #FILTER 0 0 ( ! d/* ) #FILTER 0 0 (! b/GM4SLV-10 ) #IGSERVER euro.aprs2.net #IGLOGIN GM4SLV-10 19626 #PBEACON sendto=IG delay=0:30 every=60:00 symbol="\-" lat=60^17.31N long=1^25.51W comment="30m AFSK RX Igate" DIGIPEAT 0 0 ^WIDE[3-7]-[1-7]$|^TEST$ ^WIDE[12]-[12]$ PREEMPT #IGTXLIMIT 6 10 * I will remove the Debian version 1.6 and ''sudo make install'' the newly compiled v1.7 once I'm happy with it. * This version also decodes FX25 packets - which I don't fully understand yet SP6PGH-10 audio level = 53 FX.25 75_______ [0.1] SP6PGH-10>APWW11,WIDE1-1:>100639zTest HF APRS station Status Report, APRSISCE win32 version Test HF APRS station [0H] SP6PGH-10>APWW11,GM4SLV-10*:>100639zTest HF APRS station * a normal AX25 packet IW4EGP-10 audio level = 46 _|||_____ [0.2] IW4EGP-10>APU25N,WIDE2-2:=4403.57N/01233.72E&APRS HF 30m -/D R-I H24 {UIV32}<0x0d> Position, HF Gateway <= the original primary table definition, UIview 32 bit apps N 44 03.5700, E 012 33.7200 APRS HF 30m -/D R-I H24 {UIV32} [0H] IW4EGP-10>APU25N,GM4SLV-10*,WIDE2-1:=4403.57N/01233.72E&APRS HF 30m -/D R-I H24 {UIV32}<0x0d> * both of these are also digipeated my me, shown on the last line is my outgoing digipeated packet: * ''[0H] SP6PGH-10>APWW11,GM4SLV-10*:>100639zTest HF APRS station'' * ''[0H] IW4EGP-10>APU25N,GM4SLV-10*,WIDE2-1:=4403.57N/01233.72E&APRS HF 30m -/D R-I H24 {UIV32}<0x0d>'' --- //John Pumford-Green 21/03/24 16:14// Last Update : ~~LASTMOD~~ ===== Further Information ===== | Direwolf v1.7 User Manual | {{ :public:radio:2024:user-guide_1_.pdf |}} | | aprs.fi | [[https://aprs.fi/info/a/GM4SLV-10]] | {{tag>radio aprs}}