I'm doing some work on a project at work--having trouble interpreting the data.
This antenna has NA listed for power output.
http://www.antennasearch.com/sitest...e_system_identifier=3693204&location_number=1
If you look it up at the FCC it shows 57.8dm, with a beamwidth of 3 deg and a gain of 35.3dBi.
https://wireless2.fcc.gov/UlsApp/Ul...geNumToReturn=1&licKey=3423091&keyPath=415256
Through some materials given I would show 57.8dm EIRP as (57.8/1.64) => 35.2dBm ERP, and then => as 5.2dBw.
1. Using this online calc I found, would these numbers be proper for the ERP in watts? (using 5.2dBw and 35.3dBi)
http://mykit.com/cq/inf_data/dBWattsERPEIRPCalculator.htm
It doesn't seem to be working backwards to an EIRP value that I started with on the FCC site.
2. As an aside, is this how companies normally list the power output of their antennas when registered? Seems more cryptic than it needs to be.
3. Is there a good source to learn how dBi is determined? I understand that no 'additional' power is being used but rather the antenna is ignoring a greater deal of the sky with a 3 degree beam.
Thanks for the lookover and patience.
This antenna has NA listed for power output.
http://www.antennasearch.com/sitest...e_system_identifier=3693204&location_number=1
If you look it up at the FCC it shows 57.8dm, with a beamwidth of 3 deg and a gain of 35.3dBi.
https://wireless2.fcc.gov/UlsApp/Ul...geNumToReturn=1&licKey=3423091&keyPath=415256
Through some materials given I would show 57.8dm EIRP as (57.8/1.64) => 35.2dBm ERP, and then => as 5.2dBw.
1. Using this online calc I found, would these numbers be proper for the ERP in watts? (using 5.2dBw and 35.3dBi)
http://mykit.com/cq/inf_data/dBWattsERPEIRPCalculator.htm
It doesn't seem to be working backwards to an EIRP value that I started with on the FCC site.
2. As an aside, is this how companies normally list the power output of their antennas when registered? Seems more cryptic than it needs to be.
3. Is there a good source to learn how dBi is determined? I understand that no 'additional' power is being used but rather the antenna is ignoring a greater deal of the sky with a 3 degree beam.
Thanks for the lookover and patience.