Guides
How radio signals work, how to measure them properly, and how to read what you find.
All guides
5G frequency bands explained: low-band, mid-band and mmWave in the US
US 5G bands from 600 MHz to 40 GHz: NR band numbers, TDD and FDD, beamforming, how 5G looks on a spectrum display, and what a HackRF survey can measure.
BasicsdBm, dBFS, V/m and µW/cm²: RF measurement units explained
dBm, dBFS, dBµV, V/m and µW/cm² explained: decibels, conversion formulas, worked examples, RBW, noise floor and how to calibrate a receiver.
SetupHackRF One on Android: everything you need to start surveying
Set up a HackRF One on an Android phone for walking RF surveys: what to buy, first connection, gain settings, overload, antennas, firmware and troubleshooting.
How-toHow to document radio interference and file an FCC complaint
Trace radio interference to TV, GPS, ham radio or wireless devices, rule out household causes, record evidence, and report it to your utility or the FCC.
How-toHow to find a hidden GPS tracker or bug with an RF scanner
Which trackers and bugs transmit, on which frequencies, and step-by-step methods to check a car or room by radio and by eye, plus what a sweep can't find.
How-toHow to find the cell towers near you, and which one your phone uses
Find the cell sites near you with FCC records, crowd-sourced maps and your phone's field test, then walk to them with a spectrum analyzer.
ProductHow to read a Consentiva walk report
Each section of the Consentiva walk report explained, with worked examples, common misreadings and how to verify and share the evidence package.
How-toHow to survey the radio signals in your home or neighbourhood
A complete method for RF surveys: plan the route, fix your settings, build a baseline, mark what you see, verify findings and keep a record others can check.
ExplainerRF exposure limits explained: the FCC and ICNIRP numbers in plain English
FCC and ICNIRP RF exposure limits explained: who sets them, the frequency formulas with worked examples, SAR, and why a receiver reading isn't exposure.
BasicsRF meter vs spectrum analyzer: which one do you need?
Broadband RF meters, spectrum analyzers and calibrated field-strength meters compared: probes, detectors, pulsed signals, settings and how to choose.
LocalThe radio signals on a Miami street, band by band
A band-by-band tour of the radio signals on a Miami street, from FM and marine radio to cellular, Wi-Fi and radar, and how to survey them well.
BasicsWhat is an RF spectrum analyzer, and how can a phone become one?
How RF spectrum analyzers work: FFT, RBW, detectors, noise floor, overload, signal shapes, and how a phone plus a HackRF can survey the signals around you.