User Manual
© BASYS TECHNOLOGY LIMITED 1998
41176.DOC
Page 6 of 11
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4 Reference Documentation
4.1 Reference Documentation
4.1.1 FCC Part 15 Subpart C for intentional transmitters
5 Transmission Requirements
5.1 FCC rules
5.1.1 Transmission Categories and Levels
5.1.1.1 The PAT, SAT and RAT tag transmissions fall into three categories.
These are, a) Automatic, b) Periodic and c) control signals.
5.1.1.2 The maximum Field Strength levels that apply for each category are as
follows:
5.1.1.2.1 Automatic 10333uV/M (80.28dBuV/M)
5.1.1.2.2 Periodic 4410 uV/M (72.89dBuV/M)
5.1.1.2.3 Control 10333uV/M (80.28dBuV/M)
5.1.2 Timing Requirements
5.1.2.1 Automatic Transmissions
5.1.2.1.1 The covering FCC category is Part 15.231 (a), which states that a
transmission activated automatically shall cease within 5 seconds. A
triggering event occurring at any time after this 5 second period shall allow a
further 5 second period of transmissions and so on.
5.1.2.2 Periodic Transmissions
5.1.2.2.1 The covering FCC category is Part 15.231 (e), which states that the duration
of each transmission shall not be greater than one second and the silent
period between transmissions shall be at least thirty times the duration of the
transmission but in no case less than 10 seconds.
5.1.2.3 Control Signal Transmissions
5.1.2.3.1 The covering FCC category is Part 15.231 (a), which states that a manually
operated transmitter shall employ a switch that will automatically deactivate
the transmitter within not more than 5 seconds of being released.