This is a listing to purchase a NinoTNC board and programmed CPU held in stock in the UK. Shipping will be via Royal Mail Tracked 48 hour service, and I'll post out a batch every week or so. Note: this is NOT a complete kit, just the board and CPU. You will need to place and pay for a Mouser order yourself. This is a quick and easy process - see wiki.oarc.uk/packet:ninotnc-ordering-howto for detailed step by step instructions. Two sets of components gets you above Mouser's free shipping threshold. And then you'll have two TNCs, which is super useful for testing! Background on NinoTNC: NinoTNC is a firmware-updateable KISS modem suitable for amateur packet radio. It is not a general purpose digital audio interface. It is a rewarding, through-hole electronics kit suitable for relative beginners to soldering, with care. An experienced builder can complete the build in around 1-2 hours. For a full real-time build walkthrough, see youtu.be/ZsHcIdT_fpk New firmware brings a 300 bit/sec BPSK mode which improves sensitivity vs 300 baud AFSK packet by a full 8dB. For higher SNR links, there is 600 bits/sec QPSK, 1200 bits/sec BPSK and 2400 bits/sec QPSK, all of which are IL2P + CRC, and the latter two of which fit within 2.5KHz audio bandwidth. See github.com/ninocarrillo/flashtnc/blob/master/version-31-op-modes.png for modes. For full information about the NinoTNC see tarpn.net/t/nino-tnc/nino-tnc.html You need to supply the remaining components, a USB cable, a case (someone in OARC may offer to 3D print a suitable case), and your own tools (soldering iron, solder, side snips, basic multimeter). I have enabled "pay what you want" to allow for any other circumstances, e.g. shipping to another pre-agreed country. These units will ship with the very latest 3.3.1 firmware.