We are designing a 868MHz keyfob, which is transmitting in a band with a 1% duty-cycle limit.
According to the ETSI EN 300 220-1 standard section 5.4, the duty-cycle should be measured for a period of 1 hour. In normal use, the keyfob will transmit well below 1% duty-cycle. But if some user activates the keyfob rapidly for a long period, the 1% duty-cycle will be violated.
Section 5.4.2 of the standard states that the representative period should be the most active in normal use, so does this mean, that we do not need to make some algorithm, that would block transmissions, if a user activates the keyfob more than intended. ?
No comments:
Post a Comment