Introduction
The Cloud-IQ radio is a high performance networked software defined radio with 0.009-56 MHz
frequency coverage. The Cloud-IQ uses a high performance ADC running at 122.88 MHz. The output
IQ bandwidth is configurable via software up to a maximum of 1.288 MHz at 24 bits. PC
communications are handled over a 100 base-T port using TCP control packets. The IQ streams to the
PC via UDP packets.
The Cloud-IQ is compatible with the" SpectraVue, SDR-Radio, SDR#, CuteSDR and other software. The
SpectraVue software includes demodulation and I/Q capture of spectrum at up to a 1.2288 MHz BW.
For those interested in writing their own applications, RFSPACE supplies a fully documented protocol
for communicating with the hardware as well as an open source application for MacOS, Windows and
Linux. There is no need to calculate the downconverter DSP parameters. The Cloud-IQ just needs the
center frequency, attenuator, output sample rate and mode to begin streaming data. The Cloud-IQ
utilizes straight TCP/IP and ethernet for all communications. This offers the highest possible
performance due to the highly optimized ethernet drivers on PC, Mac and Linux systems.
The Cloud-IQ packets are fully routable. This means that the receiver can be placed at remote
locations. Multiple receivers can also be combined and it’s data transported over a higher data rate
ethernet pipe using simple switches and routers. In this application, each Cloud-IQ can be set to a
different IP address or port.
The Cloud-IQ includes a low bandwidth internet mode for remote operation. In this mode, the radio
performs all demodulation and spectral FFTs onboard. The compressed data is then sent to the client
over a TCP link. This allows the placement of the Cloud-IQ anywhere in the world with an internet
connection. The RemoteSDRclient and Android SDRanywhere applications are used as clients.