The Modular Transceiver will be used for analog communication, with focus to support the communication in a case of an emergency. I will create a concept from the REQUIREMENTS and will try to create a working prototype. The ultimate goal is to develop an open source device which can be built from anyone with knowledge in electronics.
DISCLAMER: Everyone is responsible for his or her own use of the device. I assume no liability for any damage (to living beings or other devices) that may occur as a result of malfunctions or incorrect operation. Each user must use the device within the scope of his or her legal authority.
My initial idea of the Transceiver is to use a Superheterodyne Transceiver (short superhet), it will be great to as a modular Transceiver with a fixed intermediate frequency for each frequency band and a different HF frontend for each band. This modular concept should reduce the complexity, which will be great for the development process.