This allows better carrier suppression to be achieved in transmission operation -50dB is possible.

Carrier Suppression Interferometers and Phase Detectors have been used in radio frequency signal processing for many years.

Radio New Zealand International, due to long-term funding problems, has had to resort to using 6db of carrier suppression, making reception in North America difficult.

Carrier Suppression: Greater than 60 dB below PEP output (J3E mode)

Key patents covering the Carrier Suppression Interferometer and Whispering Gallery Mode Resonators feature University staff as co-inventors.

A crucial element in PSI's signal generators is its patented noise detection and suppression circuit, the Carrier Suppression Interferometer.