FCC Corrects J2D Error in "Omnibus" Report and Order

NEWINGTON, CT, Nov 28, 2006 -- The FCC today 
released an 
<http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-268642A1.pdf>Erratum 
that corrects one error in the recent<> Report 
and Order 
(<http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-06-149A1.pdf>R&O) 
in WT Docket 04-140 -- the so-called "omnibus" 
Amateur Radio proceeding -- that inadvertently 
limited J2D emissions to an occupied bandwidth of 
500 Hz. J2D emissions are data sent by modulating 
an SSB transmitter. Had it been left to stand, 
the error would have rendered illegal below 30 
MHz PACTOR III at full capability as well as 
Olivia and MT63 when operated at bandwidths 
greater than 500 Hz bandwidth, 1200 baud packet, Q15X25 and Clover 2000.

The FCC Erratum revises ยง97.3(c)(2) of the 
Amateur Service rules going into effect December 15 to read:

Data. Telemetry, telecommand and computer 
communications emissions having (i) designators 
with A, C, D, F, G, H, J or R as the first 
symbol, 1 as the second symbol, and D as the 
third symbol; (ii) emission J2D; and (iii) 
emissions A1C, F1C, F2C, J2C, and J3C having an 
occupied bandwidth of 500 Hz or less when 
transmitted on an amateur service frequency below 
30 MHz. Only a digital code of a type 
specifically authorized in this part may be transmitted.

In its comments on the proceeding, the ARRL 
argued that a 500-Hz bandwidth limitation in the 
definition of data emissions would have 
unintended consequences because the limitation 
would also apply to Amateur Radio bands where a 
higher bandwidth is allowed. In its R&O, the FCC 
said relaxing the bandwidth limitation "would de 
facto eliminate the separation of narrow 
bandwidth and wide bandwidth emissions," which it 
called an "reasonable means to minimize 
interference on shared frequencies and bands."

The Commission said in the running text of the 
R&O that it would address the League's concern by 
revising the Part 97 rules "to clarify that the 
500 Hz limitation applies only to the emission 
types we are adding to the definition of data 
when transmitted on Amateur Service frequencies below 30 MHz."

Unfortunately, the language of the intended 
revision that appeared in the original version of 
the R&O inadvertently included J2D emissions 
among those to which the 500-Hz bandwidth limitation would apply.

The FCC incorporated some unrelated editorial 
revisions in the version of the R&O that appeared 
November 15 in the 
<http://a257.g.akamaitech.net/7/257/2422/01jan20061800/edocket.access.gpo.gov/2006/pdf/E6-19189.pdf>Federal
 
Register. The "omnibus" rule changes -- including 
those accounted for in the Federal Register and 
the Erratum -- take effect Friday, December 15, at 12:01 AM EST (0501 UTC).




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