Operation Within The Bands - Vectron HW 90196 User Manual

10.8.6 15.247 Operation within the bands ... 2400 – 2483.5 MHz ...
(a) Operation under provisions of this section is limited to frequency hopping and direct sequence spread
spectrum intentional radiators that comply with the following provisions:
(1) Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum
of 25 kHz or the 20 dB bandwidth of the hopping channel whichever is greater.
The product uses a channel spacing of 1.626353 MHz which is greater than the 20 dB bandwidth of 1.5
MHz.
The system shall hop to channel frequencies that are selected at the system hopping rate from a pseu-
dorandomly ordered list of hopping frequencies. Each frequency must be used equally on the average by
each transmitter.
The product uses a pseudorandomly ordered list of hopping frequencies, see table 2. Each frequency is
used equally in this list.
(i) does not apply
(ii) does not apply
(iii) Frequency hopping systems in the 2400 – 2483.5 MHz band may utilize hopping channels whose
20 dB bandwidth is greater than 1 MHz provided the systems use at least 15 non-overlapping
channels.
The product uses 48 non-overlapping channels
The total span of hopping channels shall be at least 75 MHz
The total span of hopping channels used by the product is about 78 MHz
The average time of occupancy on any frequency shall not be greater than 0,4 seconds within a
30 second period
The average time of occupancy on any frequency is 416 µs within 480 ms which corresponds to 26 ms
within a 30 seconds period per for a single transmit bearer.
(2) does not apply
(b) The maximum peak output power of the intentional radiator shall not exceed the following:
(1) For frequency hopping systems in the 2400 – 2483.5 MHz band employing at least 75 hopping chan-
nels ...: 1 watt. For all other frequency hopping systems in the 2400 – 2483.5 MHz band 0,125 watts.
The maximum output power of the product does not exceed 0,125 watts.
(2) does not apply
(3) does not apply
(4) See test house report
(g) Frequency hopping spread spectrum systems are not required to employ all available hopping chan-
nels during each transmission. However the system, consisting of both the transmitter and receiver must
be designed to comply with all of the regulations in this section should the transmitter be presented with a
continuous data (or information) stream. In addition, a system employing short transmission bursts must
comply with the definition of a frequency hopping system and must distribute its transmissions over the
minimum number of hopping channels specified in this section.
The product employs all available hopping channel for each transmission lasting longer than 480 ms. In
particular this is true for a continuous data stream.
The product uses short transmission bursts which are distributed over all available hopping channels as
described above.
Lin
page 67/70
User manual
02.02.2001 1.00 HW90195UserMan.doc
Vectron
© Höft & Wessel AG
Subject to amendment, errors excepted