Progress Report 6

0025-EX-RR-2004 Post Grant Documents

Current Technologies, LLC

2005-02-05ELS_69132

                                                                  Call Sign WC2XUV
                                                           File No. 0025-EX-RR-2004
                                                                             2/5/2005
                           Current Technologies, LLC
                    Experimental License Progress Report #6

        Under its experimental license, Current Technologies, LLC (“Current”) has
been operating its proprietary broadband over powerline (“BPL”) communications
equipment installed on both “low voltage” and “medium voltage” electric power
distribution lines. These experimental operations continue to validate the
capabilities of BPL technology. Current’s proprietary BPL equipment
continuously delivers always-on, symmetrical broadband speeds (as high as 4+
Mbps) to virtually all of the existing electrical outlets in the customer premise over
the electric utility’s low and medium voltage power distribution lines. This BPL
equipment forms a communications path that safely bypasses the step-down
transformer segregating the low and medium voltage power lines. Installation of
Current’s BPL equipment causes no disruption or degradation of electric
distribution service during installation or operation.

      Current’s experimental BPL equipment is not currently being used to serve
end users. All equipment serving end users has been replaced with commercial
equipment. Nonetheless, Current’s experimental BPL operations enabled
Current to develop and verify its BPL equipment under applicable FCC Part 15
emissions requirements and to commence the manufacture and distribution of
commercial equipment. Current has received no interference complaints, nor
has any interference been detected, during its experimental operations.

      Most of the activity during this reporting period has focused on detailed
engineering, testing, and verification of Current’s next generation BPL
equipment. Current has completed successful verification testing for its primary
overhead BPL RF devices including both conducted and radiated emissions
measurements in both laboratory and field conditions. Current is now conducting
experimental operations of its next-generation BPL equipment, including
underground residential distribution equipment.

       Current has conducted testing of equipment operating on frequencies both
above and below 30 MHz. The results continue to confirm that peak emission
levels emanate from the precise point on which Current’s BPL equipment is
coupled to the electric distribution line and that such emissions dissipate in a
monotonically decreasing fashion as the measurement point moves further from
the equipment coupling point. Specifically, RF signal strength from Current’s low
and medium voltage BPL equipment falls off with the inverse square of distance,
so that the devices act quantitatively like point source emitters.

       Testing during this period again confirm that maximum radiated emissions
for equipment operating both above and below 30 MHz comply with applicable
Part 15 emissions limits and were similar at each of the tested installation sites
with no statistically significant variations. All measurements were taken in
accordance with the procedures prescribed in 47 CFR § 15.31.



Document Created: 2005-02-05 14:30:56
Document Modified: 2005-02-05 14:30:56

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