One consideration you may need to address is that the bitx family transmits and receives single sideband (SSB) modulated signals. If your application requires AM modulation instead then significant modifications would be required.
If SSB is ok, then in general you would need to modify the tuned circuits in the RF front end to match the new band and edit the Raduino software to set a different local oscillator frequency.
Of course, there will be many other details to address, including software changes to support your specific restrictions and requirements.
My name is Qonita, and I am a student i my last semester. I'd like to learn about BITX40 because it is very suitable for my last project.?
So my project is to make a HF communication system for Fisherman Ship and the Coast Station. The frequency is already been stated by the government. It were 8.222 MHz (for the Ship) and 8.746 MHz (for the Coast). The Ship Station can transmit voice and GPS location (simple digital data, just 9 digit of MMSI ship code and location from the GPS Satellite), but can only receive voice. For the Coast Station, can only transmit voice, but can receive voice and digital data.
I think BITX40 can be a perfect example module for the voice communication. Can anyone explain to me what parts of BITX40 that I should change for the required frequency?
