Four tools I use on site. No install, works on a phone, nothing leaves your browser.
Converts an LTE EARFCN or 5G NR-ARFCN into its downlink/uplink centre frequency.
Power conversion between dBm, milliwatts and watts, plus dBW.
First Fresnel zone radius at mid-path and the 60% clearance you actually need.
True bearing and great-circle distance from site coordinates. Use it to check a design azimuth against a target.