1. FCC Part 15 and channel widths
Month Year
doc.: IEEE /0xxxr0
November 2010
FCC Part 15 and channel widths
Date:
Authors:
David Halasz, OakTree Wireless
David Halasz, OakTree Wireless

2. Month Year
doc.: IEEE /0xxxr0
November 2010
Abstract
This submission is a review of part 15 and the relationship of channel widths for IEEE ah.
David Halasz, OakTree Wireless
David Halasz, OakTree Wireless

3. November 2010
Pertinent text from Part FH and digitally modulated intentional radiators
FH systems shall have,
From (a)(1)(i) The maximum allowed 20 dB bandwidth of the hopping channel is 500 kHz
From (b)(2) The max output power shall be 1 watt for systems with at least 50 hopping channels. Otherwise .25 watts
Digital modulation techniques shall have,
From (a)(2) The minimum 6 dB bandwidth shall be at least 500 kHz
From (b)(3) The max output power shall be 1 watt
David Halasz, OakTree Wireless

4. Pertinent text from Part 15.247 Further notes on Frequency Hoppers
November 2010
Pertinent text from Part Further notes on Frequency Hoppers
From (a)(1) FH systems shall have,
Carrier frequencies separated by the greater of 25 kHz or the 20 dB bandwidth of the hopping channel
The hop sequence is pseudo random
Each frequency must be used equally on average
(i)If the 20 dB bw of the hopping channel is less than 250 kHz then
The system shall use at least 50 hopping frequencies and the average time on a frequency shall not be greater than .4 seconds within a 20 second period
else
The system shall use at least 25 hopping frequencies and the average time on frequency shall not be greater than .4 seconds within a 10 second period
David Halasz, OakTree Wireless

5. November 2010
References
1) Electronic Code of Federal Regulations, as of October 21,
David Halasz, OakTree Wireless