Attestation

FCC ID: NP4-2422210610

Attestation Statements

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FCCID_619361

                                     Dataradio COR Ltd
                                     Waseca, Minnesota

                  ENGINEERING STATEMENT OF William M. Junge

        The application consisting of the attached engineering exhibit and associated FCC
form 731 has been prepared in support of a request for Certification for TSLM Wireless
Modem. The transceiver will be identified by the FCC number NP4—2422210610. The
transceiver operates pursuant to Part(s) 90 of the Rules and Regulations.


                               EXISTING CONDITIONS

       The Dataradio COR Ltd has completed assembly of a pilot—production quantity of
the TSLM Wireless Modem. The units utilized for these type acceptance measurements
were obtained from the pilot—production. The transceiver is designed to operate on
frequencies ranging from 137 to 174 MHz. The frequency tolerance of the transceiver is
.00010% or 1.0 parts per million. A digitally compensated crystal oscillator operating at
16 MHz controls the frequency stability of the transceiver.

                              PROPOSED CONDITION®S

       It is proposed to certify the TSLM Wireless Modem for operation in the band of
frequencies previously outlined. The applicant anticipates marketing the device for use in
wireless transmission of data.

                         PERFORMANCE MEASUREMENTS

       All Certification measurements were conducted in accordance with Section
2.1033 of 47 CFR 2004 of the Rules and Regulations. Equipment performance
measurements were made in the engineering laboratory and on the FCC certified test
range at Dataradio COR Ltd in Waseca, Minnesota. All measurements were made and
recorded by myself or under my direction. The performance measurements were made
between November 15, 2005 and December 15, 2005.



                                      CONCLUSION
        Given the results of the measurements contained herein, the applicant requests
that the Certification be granted for the TSLM Wireless Modem as tested for data
communications.                             n

                      /%;;/%/wf\wfi,,nz                      12/15/2005
                        .‘x      %           1\                    ..




                                     WillQ/[. )gge
                          Sr. Certified Technologist, Dataradio COR Ltd



Document Created: 2005-12-15 12:01:08
Document Modified: 2005-12-15 12:01:08

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