KaikuSDR
Hear a whole band at once.
KaikuSDR is a scanner for software-defined radios. It listens to every channel of a band at the same time and plays what is on the air.
It works with an RTL-SDR dongle, an Airspy, a HackRF, a bladeRF, an SDRplay and others, on a Mac or a PC. Simple enough for a first SDR, deep enough for the tenth.
Download Free and Full compared
Every channel at once
A receiver hears a slice of spectrum at a time: a couple of megahertz, or ten or more with some radios.
KaikuSDR watches every channel in that slice at once. A transmission opens its channel the moment it starts. Then the receiver hops on across the band.
With more than one receiver, more of the band is watched at once.
Simple to start, deep when you want it
Plug the receiver in. Say where you are and what you want to hear: aircraft, boats, amateur radio, walkie-talkies. That is all.
The band plan, the channel widths and the modes are the app's business. Gain and squelch look after themselves.
When you want more, every setting has its page: your own ranges and exclusions, the modes and widths, each receiver's gain and PPM, the squelch rules, the spectrum and the waterfall.
Keep what you find
Name a channel while it is open. Lock out the ones you never want to hear again.
Record transmissions and read them back as text. CTCSS, DCS and Morse are decoded for you.
The full version runs several receivers at once. The band is covered that many times faster.
Free, or Full bought once.
The free version runs one receiver and has no time limit.
The full version runs as many receivers as you have and adds the serious tools. It costs €69, once. That buys a year of updates, and the versions of that year are yours to keep for good. What each has.
The full version is coming shortly.
Receivers
Today: RTL-SDR dongles (v3 and v4, through rtl_tcp) and Airspy (R2 and Mini).
Written and waiting for hardware to be checked on: Airspy HF+, HydraSDR, HackRF One, bladeRF, Fobos and SDRplay. What each needs on a Mac and on Windows.