Welcome! The author is currently busy changing a own-designed and -built direct conversion HF SSB receiver into a transceiver. Below are related posts.
- Digital LC meter
The first post is about a digital LC meter, because this is so important for RF work. It is PIC 16F1619-based and coded in C. Click here for a description and the circuit diagram: lc meter r1
The program files (the complete MPLABX-IDE project folder) are here: lc_meter_v2
2. Direct conversion HF SSB receiver
This next project is a direct conversion SSB receiver for the HF bands. Click here for a description and the circuit diagrams: A direct conversion HF receiver rev 1
The program files (the complete MPLABX-IDE project folder) are here:
fir_filter_hilbert_29tap_min45_OK_PRODUCTION.X fir_filter_hilbert_29tap_plus45_OK_production
Also for the frequency meter (r1): counter r1