Re: [PSES] Antenna tilting or boresigjting for radiated emissions

Previous comments restrict the issue to microwave frequencies and a double-ridge guide horn. I believe this issue first came up when transitioning from dipoles to higher gain antennas below 1 GHz, such as log-periodic arrays. The same concept applies to LPAs. Ken Javor Phone: (256) 650-5261

Re: [PSES] Antenna tilting or boresigjting for radiated emissions

It is in both C63.4 and C63.10 for above 1 GHz (so not a semi anechoic chamber due to the absorber on the ground plane). C63.4 Clause 8.3.2.2 The final measurements are performed on a site meeting the requirements of 5.5. For measurements above 1 GHz, use the cable, EUT arrangement, and mode

Re: [PSES] Antenna tilting or bore sighting for radiated emissions

Paolo, I’m going to go on some assumptions here that you are familiar with the measurement setup and process in Part 15 and ANSI C63.4:2014. If you look in section 8.2.4 there is a discussion on antenna beamwidth You need to keep the antennas within their 3 dB of radiation or reception also

[PSES] Antenna tilting or boresigjting for radiated emissions

Hi all, Is there an FCC / ANSI requirement, or maybe just recommendation, for antenna tilting or boresighting wrt radiated emissions in a semi-anechoic chamber ? If yes, can you please get me the reference section in FCC Part15 or ANSI std or somewhere else? Thanks a lot in advance! Paolo -