Radio tools

Calculators, live operating information and references.

Antennas & RF

Antenna CalculatorLengths, loaded verticals, coils, traps and transformersRF CalculatorWavelength, SWR and powerMaidenhead PathLocator, distance and bearing

Circuits

Electronics Calculator17 circuit, RF component and matching tools

Propagation & Spots

Solar ConditionsLive NOAA solar flux and KpDX ClusterLive read-only DX spotsPOTA / SOTA SpotsLive activator spotsUK Repeater FinderSearch 799 ETCC repeaters

Reference & Learning

Operating ReferenceQ-codes, RST and phoneticsUK Band PlanRSGB January 2026 snapshotIARU Band PlansRegion 1, 2 and 3 guidanceCW TrainerMorse text and sidetoneUK Licence RevisionFoundation, Intermediate and Full

Android version

M0ZWW Radio Tools APK

Android companion includes GPS-assisted locator tools and receive-only APRS monitoring. Those two features are APK-only and are not provided by this browser toolkit.

Version
0.1.0
Size
9,001,866 bytes
SHA-256
B3BC32B3C3D7DDC92ADF0DB4A52286AD2EF16B2882571A7D1E1DC37C3ABCCD11
DOWNLOAD TEMPORARILY OFFLINE

Direct IONOS-hosted APK link will be enabled after the signed release is uploaded.