ARLA/CLUSTER: Raspberry Pi assume o controle do radio

[João Costa > CT1FBF]

Raspberry Pi takes control of Ham Radio

*Al Williams WD5GNR* writes on Hackaday about *Hambone* which acts as
computer interface for your radio by listening for DTMF commands and can
activate the radio's PTT via the Raspberry Pi's GPIO to play audio

Read the Hackaday post at
https://hackaday.com/2020/06/24/raspberry-pi-takes-control-of-ham-radio/

The software was developed by *Jacob WU7ANG* (NotPike)
https://twitter.com/ifnotpike/status/1270225880128749568
https://bad-radio.solutions/notes_yaesu_rpi

Hambone
https://github.com/notpike/Hambone


RASPBERRY PI TAKES CONTROL OF HAM RADIO
 16 Comments
<https://hackaday.com/2020/06/24/raspberry-pi-takes-control-of-ham-radio/#comments>

   - by: Al Williams <https://hackaday.com/author/wd5gnr1/>

June 24, 2020 <https://hackaday.com/2020/06/24/>

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Today’s ham radio gear often has a facility for remote control, but they
most often talk to a computer, not the operator. Hambone
<https://github.com/notpike/Hambone>, on the other hand, acts like a ham
radio robot, decoding TouchTone digits and taking action — for example,
keying the radio and reading off the weather — in response to the commands
received.

The code is in Python and uses numpy’s fast Fourier transform to identify
digits. We’d be interested to test the performance of that compared to
doing a Goertzel to specifically probe for the 8 digit tones: there are
four row tones and four column tones. On the other hand, the FFT is handy
and clearly works fast enough for this application.

The project is actually a spin off from [notpike’s] failed project to send
paging tones. It is set up for a specific Yaesu handheld, but any radio
should be workable with it. However, if you are connecting it to the same
radio, there were a few tricks involved that you’ll want to read about.

Remote operation
<https://hackaday.com/2019/10/07/raspberry-pi-ham-radio-remote-reviewed/> is
getting more common and this probably would be one place to start if you
wanted to build your own remote setup. If you ever thought about being a
ham, we can do it for about $50
<https://hackaday.com/2019/03/08/the-50-ham-getting-your-ticket-punched/>.
Posted in Radio Hacks <https://hackaday.com/category/radio-hacks/>
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