23cm NBFM Transceiver Project
23cm NBFM Transceiver Project

Downloads

23cm NBFM Transceiver Schematic Diagram
schematic diagram - 2025
23cm_NBFM-Transceiver_circuit .pdf
Adobe Acrobat document [526.6 KB]

Early shipments of the Experimenters Kit included a USB drive containing project documentation. 

 

Kits shipping from January 2026 onwards do not contain the USB drive - project documentation is available via the three download links below.

 

2025 Kit Information - Read me first
This is an online version of the files contained on the USB stick that shipped with 2025 kits
Read Me First.zip
Compressed archive in ZIP format [9.8 MB]
2025 Kit Information - General information
This is an online version of the files contained on the USB stick that shipped with 2025 kits
General Information.zip
Compressed archive in ZIP format [27.6 MB]
2025 Kit Information - Your Kit Information
This is an online version of the files contained on the USB stick that shipped with 2025 kits
Your Kit Information.zip
Compressed archive in ZIP format [55.7 MB]

Our kit includes an ATMEGA328 microcontroller pre-programmed with version wm_23Trx_4_4_4z.hex firmware (compatible with 4-row LCD display). 

 

The GitHub repository for the ATMEGA328 code can be found at:  

https://github.com/pe1jpd/23cm/tree/master/builds

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