TopBytes Ltd is a UK technology consultancy that advises boards and builds its own products. We cover executive and non-executive director services, purpose-built amateur radio hardware, and solar and energy system design for homes and businesses.
Every TopBytes product started as something we wanted for our own shack or workshop and couldn't buy. Each one is designed, built and supported in the UK, and kept current with regular over-the-air firmware updates.
Learn Morse the way it's actually used: on a real key.
A portable, battery-powered trainer for learning to send and receive Morse code. Plug in any standard straight key or paddle through the 3.5 mm socket and practise anywhere.
Everything the cluster knows, plus the propagation to read it.
A 7-inch capacitive touchscreen with an on-device UI, a live HamQSL propagation panel (SFI, sunspot number, A and K indices, per-band conditions) and callsign and prefix alerts that pop up the moment a match is spotted.
Live DX spots, at a glance.
A compact display that watches DX cluster spots over WiFi and shows them on a high-contrast yellow OLED. It suits the shack desk or portable operation, and connects to the HamServe DX cluster by default.
Know exactly when, where and on what frequency.
A desktop amateur-satellite tracker with a live world map, ground tracks and footprints, a 12-hour pass timeline and a sky plot of the next pass. Uplink and downlink frequencies are shown with Doppler correction while the satellite is overhead.
The sky overhead, on your desk.
A green military-style radar scope of the aircraft above you, with a detail panel for any aircraft you tap: callsign, altitude, speed, heading, range and bearing, plus type, operator and route where available. You don't need a receiver, antenna or Raspberry Pi.
Need something that doesn't exist yet?
Our products share a common ESP32 platform with touch UI, WiFi provisioning, secure over-the-air updates and a fleet update service. We use the same stack to build custom displays and devices for clubs and businesses, such as the court-booking screens we built for a local squash club.
We work across the full stack, from the boardroom to the comms cabinet. Engagements range from a single advisory session to designing, delivering and running a complete solution.
Executive and non-executive director services, technology strategy, customer success and training, from people who have run engineering organisations.
Learn moreHighly available, scalable cloud services, CI/CD pipelines, containers and cyber security reviews, for systems that stay up and stay patched.
Learn moreWAN, LAN, VPN and WiFi for homes and businesses. We fix dropouts and poor coverage, segment networks, write firewall rules and replace the ISP router.
Learn moreManaged WiFi with LTE, cable or Starlink backhaul, plus licensed radios and repeaters, so organisers stay connected when the mobile network can't cope.
Learn moreSetup, dashboards, energy monitoring and automations, then optional remote management and secure remote access by subscription.
Learn moreIndependent solar, battery and EV-charging design and specification, plus tariff optimisation. We don't sell panels, so our advice is in your interest.
Learn moreA national DMR service for RAYNET-UK volunteer communicators, with per-group talkgroups, access control and a member help site.
Read moreA web app that pulls half-hourly Octopus Energy consumption, export and tariff data to chart usage and forecast the month's bill.
Read moreA real-world case study of cutting a household's energy and fuel bills using battery storage, solar, three EVs and smart tariffs.
Read moreWhether you need board-level advice, a network that works, an energy system designed properly or support for one of our products, we'd like to hear from you.