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| Robotic reconnaissance devices may use 70 centimeters but must limit signal bandwidth to 100 kHz. (Recon-Scout.com photo) |
The FCC in mid-November denied an ARRL appeal of its 2010 decision to permit robotic reconnaissance devices used by public safety agencies to operate in the 70-centimeter band, on which amateur radio is a secondary user. However, the ARRL Letter says the Commission made it clear in its ruling that the devices' signals are limited to a maximum bandwidth of 100 kHz.