This and subsequent posts appeared on the HC-11 and HC-12 thread. As they were causing that thread to diverge from its specific topic they were separated out -
http://www.picaxeforum.co.uk/showthread.php?28893-HC-11-and-HC-12-transceiver-modules/page12
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Hi,
I'm no expert on these matters but AFAIK, the default 433 MHz carrier frequency is not "Legal" (i.e. Licence Exempt) in North America (including Canada) at any significant power level. The Licence Exempt bands are around 315 and 915 MHz (and of course 2.4 GHz).
As far as the UK is concerned, the introduction to the document in post #54 states that it gives only "minimum" requirements and is not intended to contradict the requrements of (a large number of) other listed specifications. Also, I note that page 29 is part of the section headed "Industrial / Commercial Telemetry and Telecommand". Now you may be able to claim that your application falls into the "Telemetry and Telecommand" category, but I rather doubt if you can claim it to be an "Industrial or Commercial" use ?
Cheers, Alan.
http://www.picaxeforum.co.uk/showthread.php?28893-HC-11-and-HC-12-transceiver-modules/page12
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Hi,
I'm no expert on these matters but AFAIK, the default 433 MHz carrier frequency is not "Legal" (i.e. Licence Exempt) in North America (including Canada) at any significant power level. The Licence Exempt bands are around 315 and 915 MHz (and of course 2.4 GHz).
As far as the UK is concerned, the introduction to the document in post #54 states that it gives only "minimum" requirements and is not intended to contradict the requrements of (a large number of) other listed specifications. Also, I note that page 29 is part of the section headed "Industrial / Commercial Telemetry and Telecommand". Now you may be able to claim that your application falls into the "Telemetry and Telecommand" category, but I rather doubt if you can claim it to be an "Industrial or Commercial" use ?
Cheers, Alan.
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