I decided to continue working with my recent idea of a transceiver with a triple frequency conversion, to be more precise, the third conversion is used for AM / FM modes.
The first conversion was performed on a pair of standard quartz filters at a central frequency of 45 MHz. The second transformation, a self-made 8 and a crystal quartz filter at 6 MHz. The third transformation used a standard five introductory piezoceramic filter with a frequency of 455 kHz.
We continue to work on the development of the line of transceivers "Minion"
This is a joint project of Me - UR5FYG and my friend and our colleague - Yuri UT5QBC