I recently purchased a HackRf SDR, which has transmit and recieve capability. I'm debugging a 2.4ghz wireless module, and being able to transmit to it using the hackrf would be very helpful. Since this is in the ISM ("unlicensed?") band, can I transmit legally (with a very low power, a few milliwatts) for testing purposes without an amateur radio license? I'm in Canada, by the way.
Yes, that is totally legal Worldwide, no license needed. Do you own/use a:
- WiFi access point
- WiFi on a phone or laptop
- Microwave oven
- Bluetooth on a phone or laptop
These all operate in the 2.4 - 2.5 GHz ISM band which is legal as long as the device transmits less than (I think, correct me if I'm wrong please) 20 dBm = 10 mW
So in your case: no worries, perfectly legal ! Enjoy :-)