Avoid interference from Part 90 3650–3700 MHz band transmitters into C-band earth stations

Calculations show a potential for transmitters in the new Part 90 3650–3700 MHz band service to cause interference to earth station receivers in the adjacent 3700–4200 MHz C-band.

As this new service is being established, earth station licensees and operators should be on the lookout for harmful interference effects from nearby Part 90 transmitters.

This paper discusses how potential interference effects between transmitters in the new Part 90 3650-3700 MHz Band service and the adjacent 3700-4200 MHz C-band can be calculated for two phenomena—out-of-band transmitter emissions and low noise block downconverter oversaturation.