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General Radio Discussion / Interpretation of RSS-210 law pertaining to 510 - 1705 khz
« on: September 19, 2018, 1253 UTC »
Sometimes it takes another read of the verbiage to catch things that may not seem just right.
Example is as follows:
B.2 Band 510-1705 kHz
Devices using this band shall comply with one of the following requirements:
The total input power to the final radio frequency stage shall not exceed 100 mW, and the total length of transmission line, antenna and ground lead (if used) shall not exceed 3 m.
The field strength of radiated emissions shall not exceed 250 µV/m measured at 30 m
Transmitters that employ a leaky coaxial cable as a radiating antenna may meet the field strength limit of 15 µV/m, as measured at a distance of 47715/(frequency in kHz) m (equivalent to wavelength/2π) from the coaxial cable.
Emissions outside of this band shall be attenuated by at least 20 dB below the mean transmitter output power, or to the general field strength limits specified in RSS-Gen, whichever is less stringent.
So you read through the actual wording that the Canadian government has posted.
Notice something?
"One of the following" is clearly stated. Not "All" but "one of the following"
To ones advantage, I don't know - But it makes you think that loopholes might exist elsewhere.
TM.
Example is as follows:
B.2 Band 510-1705 kHz
Devices using this band shall comply with one of the following requirements:
The total input power to the final radio frequency stage shall not exceed 100 mW, and the total length of transmission line, antenna and ground lead (if used) shall not exceed 3 m.
The field strength of radiated emissions shall not exceed 250 µV/m measured at 30 m
Transmitters that employ a leaky coaxial cable as a radiating antenna may meet the field strength limit of 15 µV/m, as measured at a distance of 47715/(frequency in kHz) m (equivalent to wavelength/2π) from the coaxial cable.
Emissions outside of this band shall be attenuated by at least 20 dB below the mean transmitter output power, or to the general field strength limits specified in RSS-Gen, whichever is less stringent.
So you read through the actual wording that the Canadian government has posted.
Notice something?
"One of the following" is clearly stated. Not "All" but "one of the following"
To ones advantage, I don't know - But it makes you think that loopholes might exist elsewhere.
TM.