Goto Section: 15.609 | 15.613 | Table of Contents
FCC 15.611
Revised as of October 2, 2015
Goto Year:2014 |
2016
§ 15.611 General technical requirements.
(a) Conducted emission limits. Access BPL is not subject to the conducted
emission limits of § 15.107.
(b) Radiated emission limits—(1) Medium voltage power lines. (i) Access BPL
systems that operate in the frequency range of 1.705 kHz to 30 MHz over
medium voltage power lines shall comply with the radiated emission limits
for intentional radiators provided in § 15.209.
(ii) Access BPL systems that operate in the frequency range above 30 MHz
over medium voltage power lines shall comply with the radiated emission
limits provided in § 15.109(b).
(2) Low voltage power lines. Access BPL systems that operate over
low-voltage power lines, including those that operate over low-voltage lines
that are connected to the in-building wiring, shall comply with the radiated
emission limits provided in § 15.109(a) and (e).
(c) Interference Mitigation and Avoidance. (1) Access BPL systems shall
incorporate adaptive interference mitigation techniques to remotely reduce
power and adjust operating frequencies, in order to avoid site-specific,
local use of the same spectrum by licensed services. These techniques may
include adaptive or “notch” filtering, or complete avoidance of frequencies,
or bands of frequencies, locally used by licensed radio operations.
(i) For frequencies below 30 MHz, when a notch filter is used to avoid
interference to a specific frequency band, the Access BPL system shall be
capable of attenuating emissions within that band to a level at least 25 dB
below the applicable Part 15 limits.
(ii) For frequencies above 30 MHz, when a notch filter is used to avoid
interference to a specific frequency band, the Access BPL system shall be
capable of attenuating emissions within that band to a level at least 10 dB
below the applicable part 15 limits.
(iii) At locations where an Access BPL operator attenuates radiated
emissions from its operations in accordance with the above required
capabilities, we will not require that operator to take further actions to
resolve complaints of harmful interference to mobile operations.
(2) Access BPL systems shall comply with applicable radiated emission limits
upon power-up following a fault condition, or during a start-up operation
after a shut-off procedure, by the use of a non-volatile memory, or some
other method, to immediately restore previous settings with programmed
notches and excluded bands, to avoid time delay caused by the need for
manual re-programming during which protected services may be vulnerable.
(3) Access BPL systems shall incorporate a remote-controllable shut-down
feature to deactivate, from a central location, any unit found to cause
harmful interference, if other interference mitigation techniques do not
resolve the interference problem.
[ 70 FR 1374 , Jan. 7, 2005, as amended at 71 FR 49379 , Aug. 23, 2006; 76 FR 71908 , Nov. 21, 2011]
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Goto Section: 15.609 | 15.613
Goto Year: 2014 |
2016
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