The R-1550A TEMPEST Receiver includes everything you need to operate from a frequency range of 100 Hz to 2 GHz. With options, the frequency range may be extended as low as 20 Hz or as high as 40 GHz.

The DSII model R-1580A Microwave Downconverter extends the coverage of the R-1550A, or other DSII wide range receivers, to 22GHz.