minimodem
direwolf
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minimodem | direwolf | |
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19 | 18 | |
820 | 1,469 | |
- | - | |
0.0 | 7.0 | |
10 days ago | about 2 months ago | |
C | C | |
GNU General Public License v3.0 or later | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
minimodem
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Replacement PCB Replicates Early 80s Modem
This will get you started:
Tony Fisher wrote V.32 soft modem stack for SGI Indy back in 1996. York University couldnt handle hosting whole 8 megabytes of his stuff https://www.cs.york.ac.uk/news/fisher/home-page but at least they had the decency to upload it to github instead of just deleting https://github.com/university-of-york/cs-www-users-fisher/tr... Randy Rossi rewrote this project and got working V.21/23 https://github.com/randyrossi/fisher-modem
Fabrice Bellard, because of course he did :), implemented his own version all the way to V.34 with parts of V.90 https://bellard.org/linmodem/
V.21 modem implemented in Gnu Radio https://web.archive.org/web/20170627151353/http://aaronscher...
amodem - good source of ready made modulation implementations https://github.com/romanz/amodem
minimodem- simple radio link FSK modem https://github.com/kamalmostafa/minimodem
audsl - leased line project, not compatible with standard modems https://www.araneus.fi/audsl/ but might give some ideas.
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Minimodem on Alpine Linux
Try downloading it from the tags section instead of cloning the repo. https://github.com/kamalmostafa/minimodem/tags
- PDF to audio raw and back to PDF
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"Easy" Solution for free unlimited storage
there's a tool called minimodem http://www.whence.com/minimodem/ it uses audio cards to replicate ancient modem standards - I was watching videos of old modems and was able to use minimodem to simultaneously reconstruct the terminal session locally. It was amusing to do so.
- looking for cassette tape data storage
- Pimping my Casio with Oddly Specific Objects' alternate motherboard and firmware
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Creating a Modem with HTML5 and the Web Audio API
“What do you do when you cannot copy text between computers due to lack of internet connectivity? “
Literally what Minimodem was created for :)
http://www.whence.com/minimodem/
- Minimodem – general-purpose software audio FSK modem
- minimodem - general-purpose software audio FSK modem
direwolf
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What signal is this? the frequency is around 144.8 and I am listening from Bucharest. the only sound i can compare it to would be a velociraptor noise. the second image shows a sound that sounds like white noise and happen much more frequently. thanks in advance for anyone who helps!
144.800 is the APRS frequency in Europe. That's part of the 2m amateur band, and you can use tools like Direwolf to decode the packets. See https://aprs.fi/ for a display of the packets that make it to the internet.
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This should be an APRS signal... but I guess I'm wrong?
Yes, recommended. https://github.com/wb2osz/direwolf
- Looking for tips on a RaspberryPi decoder for APRS Packets
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Trying to wrap my head around packet radio
Since you're trying to save money, I'll second the direwolf software TNC. There's packet-radio.net with info about setting up direwolf.
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simplest APRS decoding for PC?
By default it should be printing any successfully decoded packets to the terminal window. Did you follow https://github.com/wb2osz/direwolf/blob/master/doc/Raspberry-Pi-SDR-IGate.pdf or similar?
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Is there a general purpose, headless APRS application/server?
I use Direwolf with a Pi Zero and I believe there is a way to get the packet data out or passed to a script. I was going to look into this myself as some point as I wanted to just have a small screen on the Pi just to see traffic passing though my iGate on occasion.
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alternative to Mobilinkd TNC3
Hardware TNC's were a thing in the 90s but nowadays software TNC'S such as Direwolf are far more efficient
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Creating a Modem with HTML5 and the Web Audio API
On this topic, has anyone here used direwolf (https://github.com/wb2osz/direwolf) to communicate between two computers without radios?
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AudioTransmit – Transmitting data between computers using audio
Wheel successfully reinvented :)
Nothing stopping you setting up a whole AX.25 network between multiple machines using Dire Wolf [1] and the built-in AX.25 [2] (a derivation of X.25) support still in the Linux kernel. You get a proper network interface that shows up alongside eth0. Nice short instructions at [3]. Just don't hook it up to radios unless you're appropriately licensed. Speakers and mics only.
[1] https://github.com/wb2osz/direwolf
[2] https://en.wikipedia.org/wiki/AX.25
[3] https://g7vrd.co.uk/ax25-direwolf-linux
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Is there a place with updated aprs installation instructions for the PI?
https://github.com/wb2osz/direwolf has the current and best instructions.
What are some alternatives?
ggwave - Tiny data-over-sound library
Digirig-Mobile - Integrated digital modes interface for amateur radio
quiet - Transmit data with sound. Includes binaries for soundcards and .wav files.
multimon-ng
quiet-js - Transmit data with sound using Web Audio -- Javascript binding for libquiet
bladeRF-wiphy - bladeRF-wiphy is an open-source IEEE 802.11 compatible software defined radio VHDL modem
syncthing-android - Wrapper of syncthing for Android.
Reticulum - The cryptography-based networking stack for building unstoppable networks with LoRa, Packet Radio, WiFi and everything in between.
webjack - a JavaScript library that uses an audio software modem to communicate with an Arduino via a headphone jack
openwifi - open-source IEEE 802.11 WiFi baseband FPGA (chip) design: driver, software
magic-wormhole - get things from one computer to another, safely
CubeSatSim - CubeSatSim, the AMSAT CubeSat Simulator