FCC Record, Volume 28, No. 1, Pages 1 to 975, January 2 - January 31, 2013 Page: 62
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pleadings by Sprint and a Surreply from MSU.6
2. MSU disputes the scope of the laboratory measurements in the following respects:
* It claims that the radios should have been tested for compliance with the "H" and "G"
emission masks in Section 90.210 of the Commission's rules because the radios do not
employ a low-pass audio filter when transmitting data on the trunking control channel.
* It claims that the power flux density of one of the radios (the MDX model) was
understated because the radio, in practice, may have a higher gain antenna than the
antenna that MSU provided for the test MDX radio.
* It questions the laboratory's conclusions concerning SAR (Specific Absorption Rate)
values because they were made on the assumption that the body SAR represented the
worst case and, therefore, that face SAR measurement was not required, and because
the radio on which this conclusion was based was not representative all of the radio
models furnished by MSU.
3. On review of the supplemented record, we find that there is sufficient evidence therein
for the Bureau to decide the merits of MSU's claims regarding radio power flux density. We agree
with MSU, however, that the record remains incomplete with respect to MSU's radios' compliance
with the emission mask requirements of Section 90.210 of the Commission's rules.7 The MSU radios
were tested for conformance with emission mask B - the mask applicable only when radios employ an
audio low-pass filter. MSU's radios, however, do not employ an audio low-pass filter when they
transmit data on the radios' control channel. Accordingly, the radios should have been tested for
conformance with emission mask H for the NPSPAC channels and emission mask G for the
interleaved channels." We also agree with MSU that both face and body SAR should have been tested.
The laboratory's assumption that the face SAR would be less than the body SAR was unwarranted
because the assumption was extrapolated from historical data from another laboratory, and was not
representative of all of the radio models submitted by MSU for testing.9
4. We are therefore remanding this matter to the TA mediator for the limited purpose of
adducing evidence on the radios' conformity to emission masks G and H, when operated in the digital
mode without an audio low-pass filter; and the radios' conformity to the SAR limits in Sections 2.1091
and 2.1093 of the Commission's rules.'0 Sprint shall be responsible for payment of reasonable
6 Comments of Nextel Communications, Inc., Nov. 21, 2012; Reply of Nextel Communications, Inc. to the
Comments of Licensee, Dec. 11, 2012; Surreply of Mississippi State University, Dec. 24, 2012.
7 47 C.F.R. 90.210.
S The interleaved channels extend from 809-815/854-860 MHz. Three of the 4 radios provided by MSU were
manufactured before the emission mask rules became effective. The Bureau, however, required that the retuned
radios meet current NPSPAC band rules and conform to current environmental standards. Order Reopening the
Record, 27 FCC Rcd at 8356-8357. No party sought reconsideration of the Order Reopening the Record
9 As MSU observes, the Harris model PCS radio uses a different platform than the Harris model 300P radio
which served as the basis for the laboratory's determination that face testing was not required. MSU Surreply at
10 47 C.F.R. 2.1091, 2.1093.
Federal Communications Commission
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United States. Federal Communications Commission. FCC Record, Volume 28, No. 1, Pages 1 to 975, January 2 - January 31, 2013, book, January 2013; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc171173/m1/77/: accessed July 19, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.