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Re: GNU Radio + Direwolf [1 Attachment]
David Ranch
开云体育Hello Boyan, ? Direwolf can receive input either via: ? - directly via a sound card ? - via an audio stream on a UDP port (what I think you've already done) ? - via a TCP based socket with KISS frames in the payload
Can you play that audio stream from GnuRadio to confirm it's in a compatible format?? Since you've gotten it working via GQRX, you luckily have a good reference
Per , Gqrx sends it's audio stream in:
You need to configure GnuRadio's flowgraph to send the same
format.? Per that document and comments, you should be able to use
Netcat (nc) and say the "sox" program to see what data gnuRadio is
actually sending and then make the required adjustments on
GnuRadio to get it aligned.
Is that FM demodulated *audio* in that WAV file?? it' cannot be I/Q data.? Is it clean, clear flat, audio that's not over driven?? You can use tools like Audacity, Fldigi, baudline, and other tools to look at and play that WAV file to make sure it's roughly ok. --David |
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Re: force beacon
Wed Mar 22, 2017 1:31 pm (PDT) . Posted by:Don't bloat direwolf with this feature. Install ax.25 & use the beacon command in ax25tools. beacon [-c <src_call>] [-d <dest_call>[digi ..]] [-l] [-m] [-s] [-t interval] [-v] port "message" /Basil |
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GNU Radio + Direwolf
Hello everyone, I am trying to connect GNU Radio to Direwolf through UDP sockets. My idea is to first receive the data from GNU Radio and decode it with Direwolf. Once that is done, I would like to transmit APRS as well using Direwolf as the packet generator, and GNU Radio to receive those packets and send them to the SDR attached to the computer. So far, I have been able to receive the data from gqrx thourgh a UDP socket. However, when I try to do the same with GNU Radio, Direwolf won't decode anything.? You can see the diagram in the attached picture "gnu_radio.png". The .wav file that it is calling is a recording of a APRS packet. When that diagram is running, if I do "nc -l -u 7355" I can see lots of data coming in. Now I start direwolf like "direwolf -r 44100 udp:7355".? It will stay in its initial state;
I don't understand why it is not decoding the data. Someone has any idea? I would really appreciate your help! 73 from EA3HXM. ? |
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Re: Bluetooth SPP w/ APRSDroid
Solved it after some research and figuring out where the packets were being lost.?
The command needs to be in raw format for rfcomm. So instead, run this command and everything works perfectly, "sudo rfcomm --raw watch /dev/rfcomm0 22 socat tcp4:127.0.0.1:8001?/dev/rfcomm0" |
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Re: force beacon
David Ranch
开云体育I suppose it depends on what he wants to "beacon".? If it's an APRS sentence with location, it's not all that simple.?? If it's just a string of text, yes, it might be pretty simple.? It then depends on the other details that the user didn't specify like what operating system is he running, is it running on X86, ARM, etc?. --David KI6ZHD |
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Re: force beacon
Hello. Its posible force send a beacon with a key? (example: F9 in ui-view).When I was first getting DIREWOLF running I wanted to be able to send beacons on demand like this. I ended up using the UZ7HO simple-term program. It has a transmit button and it's easy to change the outgoing path. It also connects directly to DIREWOLF with the KISS-on-TCP protocol. This was on Windows for both SimpleTerm and DIREWOLF. 73 Bill, WA7NWP |
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Re: force beacon
David Ranch
开云体育Hello , I like your idea but direwolf is really more of a background application than a foreground application (like UI-View).? As such, I don't think offering a hotkey like F9 would make sense.? What might be possible is to send it a UNIX signal to tell the running Direwolf process to send a status beacon, a different signal for a telemetry beacon, etc. without exiting.? Anyway, please file an "issue" on the Direwolf github page: ?? so this can be considered and tracked. --David KI6ZHD On 03/22/2017 01:31 PM,
flopyplus@... [direwolf_packet] wrote:
? |
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Re: Smart...CBEACON????
If I follow what you're saying correctly... you want telemetry beacons for various data of your system to be varied by what's happening? Sounds more complicated than one would want. I use telemetry for my solar setup showing every bit of data possible from each part of the system, along with weather. It beacons every 10-30 minutes. It's just easier this way. Unless you're a programming guru.
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Re: Components to get full TNC?
开云体育David, So it does sound like direwolf 1.4 is still an upgrade of functionality.? I had to drop to a new fresh load of Compass and run Basil's installer scripts for working with the UDRC-II soundcard, but it worked for setting up the entire ax.25 stack and Direwolf 1.3, I'll try 1.4 in a separate directory to see if I can make the build run. Nick Nick Ellson - from iPhone (forgive typos) CCIE #20018; VCIX-NV, CNSE Network Hobbyist "Educating Layer 8, one user at a time." On Mar 19, 2017, at 8:46 AM, David Ranch dranch@... [direwolf_packet] <direwolf_packet@...> wrote:
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Re: Components to get full TNC?
David Ranch
开云体育Hello Arnold, ? This is the fastest way though I would recommend to use the "checkinstall" approach instead of "make install".? A few supporting reason for this is: ?? 1. You'll get your new version of Direwolf installed as a .deb package so all the other packages & dependencies will be considering with it when doing OS patches, upgrades, etc. ?? 2. You'll now have a .deb file which you can easily install on other Rpis without having to install all the compilers, toolchains, and supporting programs.? This leads to smaller installs on your other Rpis The use of checkinstall is covered in my "Raspberry Pi Setup with hardening for APRS & AX.25 Packet Project" doc. --David KI6ZHD |
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Re: Components to get full TNC?
David Ranch
开云体育Hello Nick, ? Direwolf has two ways to do this: ?? TCP-KISS : you can use your local network to connect to Direwolf port 8001 and send/receive KISS frames.? Any applications out there that support TCP-KISS will work.? One example program that supports this is the APRS program APRX ?? AGWPE : you can use your local network to connect to Direwolf port 8000 to send/receive AGW packets.? CONNECTED-mode ax.25 session support is new to Direwolf's AGW stack in 1.4 and it works well.? With this, any application that supports AGW connections will work with Direwolf.? Agwterm, Outpost, RMS Express, etc.? They will all work.
Don't forget on being able to SSH into your Rpi via the network and run AX.25 CLI programs as well.? I personally run LInpac from a screen session and reconnect to it whenever needed.? Very light weight and fast compared to people using say VNC or TeamViewer to remotely display a terminal window running on the Xwindows desktop on their Pi. --David KI6ZHD |
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Re: Components to get full TNC?
开云体育Thanks David, It sounded like the 1.4 build had more to the emulation than I thought. Honestly, I don't think I need the TNC2 emulation as much as a functional terminal and a functional way to use it remotely from another system so it can be a shareable resource. (Like to a windows client running RMS express) The call command, or linPac sound perfect for local use.? Nick Nick Ellson - from iPhone (forgive typos) CCIE #20018; VCIX-NV, CNSE Network Hobbyist "Educating Layer 8, one user at a time." On Mar 18, 2017, at 6:28 PM, David Ranch dranch@... [direwolf_packet] <direwolf_packet@...> wrote:
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Re: Components to get full TNC?
David, Is there a good, or proper way to load upgraded (dev) files? ?The only way I know is to delete the source directory in my computer (Pi), then get and make the newer version. ?Maybe that is the best way? Arnold KQ6DI From: "David Ranch dranch@... [direwolf_packet]" To: "direwolf packet" Sent: Saturday, March 18, 2017 6:23:55 PM Subject: Re: [direwolf_packet] Re: Components to get full TNC? ? Oh... well, I can't help you with those build scripts but no doubt Basil writes good stuff.?? Manually compiling things isn't hard though and is fully covered in the Direwolf User-Guide.pdf Btw.. the Direwolf "dev" branch in git is recommended over the current 1.4-DevE .zip due to some important fixes in it. --David KI6ZHD |
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Re: Components to get full TNC?
David Ranch
开云体育Hey Nick ? The Dev branch is the newest available and is what 1.4 is based on.? Any of the .zip or .tgz files found on the Direwolf "released" page will be OLDER than .dev.? They might be more stable than the DEV branch but that's not currently true.? Btw.. the new connected mode support in Direwolf is NOT "tnc2 emulatiom".? Direwolf doesn't support anything like that.? If you want to have software make things look like an old TNC2 setup, try out the linbpq32 BBS package.? Personally, I think it's a bit overkill for emulating a TNC to then create connected AX.25 sessions.? If you just want to make connections, you can do that with Linux's ax25apps's "call" program, Linpac for Linux, agwterm under Wine, uz7ho's easyterm under Wine, etc. --David KI6ZHD |
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Re: Components to get full TNC?
David Ranch
开云体育? Oh... well, I can't help you with those build scripts but no doubt Basil writes good stuff.?? Manually compiling things isn't hard though and is fully covered in the Direwolf User-Guide.pdf Btw.. the Direwolf "dev" branch in git is recommended over the current 1.4-DevE .zip due to some important fixes in it. --David KI6ZHD |
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Re: Components to get full TNC?
开云体育That was the docs I was using, yes. After those errors I ran the autoconfigure again and had found the file that it was missing earlier and created it.? I have since started work with Basil on the UDRC-II specific github scripts he made (n7nix repo) So far that built with no hitches, but I'd personally like to try upping the Direwolf build to 1.4 from the dev branch to test the TNC2 emulation.? I'll report my test in an hour when I am home. Been a lot of travel today. Nick Nick Ellson - from iPhone (forgive typos) CCIE #20018; VCIX-NV, CNSE Network Hobbyist "Educating Layer 8, one user at a time." On Mar 18, 2017, at 9:13 AM, David Ranch dranch@... [direwolf_packet] <direwolf_packet@...> wrote:
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Re: Components to get full TNC?
开云体育Working with Basil, n7nix's github build scripts, I asked about bumping me to Direwolf 1.4 from dev. I want to try that TNC emulation :-)? Thanks!! Nick Ellson - from iPhone (forgive typos) CCIE #20018; VCIX-NV, CNSE Network Hobbyist "Educating Layer 8, one user at a time." On Mar 18, 2017, at 9:01 AM, wb2osz@... [direwolf_packet] <direwolf_packet@...> wrote:
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Basil Gunn
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