Products

Hardware, built by people who use it. Every TopBytes product started as something we wanted for our own shack or workshop and couldn't buy - designed, built, and supported in the UK, and kept current with regular firmware updates.

Morse Trainer 3.0

Learn Morse the way it's actually used - on a real key. A portable, battery-powered device for mastering both sending and receiving Morse code. Plug in any standard straight key or paddle via the 3.5mm connector and practise anywhere. Interactive game modes (Follow Me, Listen, Random Letter, and an ELIZA conversational mode), WiFi web configuration, audio output, and upgradeable firmware (currently 3.0.0). Available exclusively through Martin Lynch & Sons Ltd. Learn more at morse.topbytes.net

DX Spotter

Live DX spots, at a glance. A compact, dedicated display that monitors DX-cluster spots over WiFi and shows them on a high-contrast yellow OLED, ideal for the shack desk or portable operation. Real-time monitoring with band filtering, web-portal configuration, over-the-air updates, and serial console access for advanced users. Learn more at dxspotter.topbytes.net

DX Spotter Pro

Everything the cluster knows, plus the propagation to read it. The flagship DX Spotter, with a 7-inch capacitive-touch display, on-device touch UI, a live HamQSL propagation panel (SFI, sunspot number, A- and K-indices, and per-band conditions), and smart callsign and prefix alerts that auto-pop the instant a match appears. QR-code setup, enhanced filtering and sorting. Built for serious DXers, contesters, and DXpedition hunters. Learn more at dxspotter.topbytes.net