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@ -48,16 +48,16 @@ It's also possible to make a 'headless' (no screen) receiver using a RTL-SDR and
There is also some general information about running the modem from the command-line [available here](https://github.com/projecthorus/horusdemodlib/wiki/2---Modem-Details#usage---horus-demod).
## How do I transmit it?
Currently the 'reference platform' for Horus Binary telemetry transmission is the Vaisala RS41 radiosonde. Using [radiosonde_auto_rx](https://github.com/projecthorus/radiosonde_auto_rx) we track and recover these radiosonde and reprogram them with [our own open source firmware](https://github.com/darksidelemm/RS41HUP), which generates the Horus Binary modulation.
A worked example of generating and transmitting Horus Binary telemetry on Arduino, using the RadioLib library, is available here: https://github.com/projecthorus/horusbinary_radiolib
Currently the most common platform for Horus Binary telemetry transmission is the Vaisala RS41 radiosonde. Using [radiosonde_auto_rx](https://github.com/projecthorus/radiosonde_auto_rx) we track and recover these radiosonde and reprogram them with [our own open source firmware](https://github.com/darksidelemm/RS41HUP), which generates the Horus Binary modulation.
These radiosondes are launched in many places around the world, so go hunting and get your own free balloon tracker!
**If you are going to fly your own payload using Horus Binary, you must get a payload ID allocated for your use. This can be done by submitting an issue or a pull request to this repository, or e-mailing me at vk5qi (at) rfhead.net**
You will also need to set up a [Habitat Payload Document](https://github.com/projecthorus/horusdemodlib/wiki/5-Setting-up-a-Habitat-Payload-Document), so that the payload telemetry appears on the tracker.
There is also some older code targeting an ATMega328 + Radiometrix MTX2 [available here](https://github.com/darksidelemm/uAvaNutBinary/tree/master/uAvaNutBinary), however this code has not been used in a long time.
I intend to produce implementations for other common transmitters, such as the RFM98W, which should also be capable of much higher order MFSK modulations, improving performance even more!
## Contacts
* [Mark Jessop](https://github.com/darksidelemm) - vk5qi@rfhead.net