Reprot from Retlif Testing Labs

FCC ID: H25T2350

Test Report

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FCCID_525995

CORPORATE OFFICE 795 Marconi Avenue ©@) Retfliif Testing Laboratories ":%‘>:~— Ronkonkoma, NY 11779 WASHINGTON REGULATORY OFFICE 101 New Boston Road, Goffstown, NH 03045 709—533—1614. Fax 708—533—1612 603—497—4600 — Fax: 603—497—5281 ME M B E R March 15, 2005 DTC Communications, Inc. 486 Amherst Street Nashua, NH 03063 Attention: Mr. James Carrington Dear Sir: Enclosed you will find Data Package R—4392N covering the testing ofthe Audio Transmitter, Model Number: T—2350, Serial Number: N/A to the requirements of FCC Part 2&90, Spurious Radiated Emissions and Transient Frequency Behavior. This testing was performed against Purchase Order Number 55522. Test setup photographs, equipment lists and test data are included for each test method performed on the above test sample. Thank you for this opportunity to be of service to you. Should you have any questions concerning this data or the actual testing of your unit, please do not hesitate to contact us. Sincerely, RETLIF TESTING LABORATORIES Publications Ene. (as stated) A New York State Corporation http:/Awww.retlif.com

CORPORATE OFFICE 795 Marconi Avenue ©@) Retfiif Testing Laboratories ©*:#":*— Ronkonkoma, NY 11779 WASHINGTON REGULATORY OFFICE 101 New Boston Road, Goffstown, NH 03045 703—633—1614 Fax 708—533—1612 603—497—4600 — Fax: 603—497—5281 ME MB E A DATA PACKAGE FOR DTC COMMUNICATIONS, INC. AUDIO TRANSMITTER MODEL NUMBER: T—2350 SERIAL NUMBER: N/A Customer Name: DTC Communications, Inc. Customer P.O.: 55522 Data Package No.: R—4392N Package Date: March 14, 2005 Test Start Date: February 10, 2005 Test Finish Date: March 2, 2005 Test Technician(s): Tim Firkowski Test Engineer: Scott Wentworth Data Prepared By: Jamie Ramsey Supervisor; Scott Wentworth Our letters and reports are for the exclusive use of the customer to whom they are addressed, and their communication to any other or the use of the name of RETLIF TESTING LABORATORIES must receive our prior written approval. Our letters and reports apply only to the sample tested and are not necessarily indicative of the qualities of apparently identicalor similar products. The reports and letters and the name of RETLIF TESTING LABORATORIES or insignia are not to be used under any circumstances in advertising to the general public. This test report shall not be reproduced, except in full, without the written approval ofRETLIF TESTING LABORATORIES. The only official copy of this documentis the signed original provided by RETLIF TESTING LABORATORIES. A New York State Corporation http://www.retlif.com

TEST SETUP PHOTOGRAPHS SPURIOUS RADIATED EMISSIONS (ERP) Retli f Testi ng Laborat ories DATA PACKAGE No. R—4392N Page 1 of

RETLIF TESTING LABORATORIES Spurious Radiated Emissions (ERP) 30 MHz to 1.625 GHz DTC Communications, Inc. Audio Transmitter T—2350 n/a FCC Part 2 Paragraph: 2.1053 Transmitting Audio Modulated Signal Narrow T. Firkowski 3/2/2005 Transmit Frequency: 162.5 MHz Limit per 90.210 (d) Peak Detector Test Antenna/EUT Reference Signal Gen Reference Ant Corrected Spurious Frequency Position Reading Level Gain Reading Limit MHz Polarity/Axis dBm dBm dBd dBm 30.00 — | — I 1625.00 EUT emissions observed throughout the given frequency spectrum were recorded & evaluated. Emission levels closest to the limit are listed on this data sheet. Data Sheet 1 of 3

RETLIF TESTING LABORATORIES Spurious Radiated Emissions (ERP) 30 MHz to 1.625 GHz DTC Communications, Inc. io Transmitter T—2350 n/a FCC Part 2 Paragraph: 2.1053 Transmitting Audio Modulated Signal Wide T. Firkowski 3/2/2005 Transmit Frequency: 162.5 MHz Limit per 90.210 (d) Peak Detector Test Antenna/EUT Reference Signal Gen Reference Ant Corrected Spurious Frequency Position Reading Level Gain Reading Limit MHz Polarity/Axis dBm dBm dBd dBm 30.00 — — ~ — | I 1625.00 EUT emissions observed throughout the given frequency spectrum were recorded & evaluated. Emission levels closest to the limit are listed on this data sheet. Data Sheet 2 of 3

RETLIF TESTING LABORATORIES Spurious Radiated Emissions (ERP) 30 MHz to 1.625 GHz DTC Communications, Inc. Audio Transmitter T—2350 n/a JFCC Part 2 Paragraph: 2.1053 Transmitting Digital Signal T. Firkowski 3/212005 Transmit Frequency: 162.5 MHz Limit per 90.210 (d) Peak Detector Test Antenna/EUT Reference Signal Gen Reference Ant Corrected Spurious Frequency Position Reading Level Gain Reading Limit MHz Polarity/Axis dBm dBm dBd dBm 30.00 — — — — | — — — — 1625.00 EUT emissions observed throughout the given frequency spectrum were recorded & evaluated. Emission levels closest to the limit are listed on this data sheet. Data Sheet 3 of 3

EQUIPMENT LIST SPURIOUS RADIATED EMISSIONS EN Type Manufacturer Description Model No. Cal Date Due 3001 Tuned Dipole Antenna Empire Devices 200 MHz — 400 MHz T2 8/12/2003 8/12/2006 3002 Tuned Dipole Antenna Empire Devices 400 MHz — 1 GHz T3 8/12/2003 8/12/2006 4202 Biconilog EMCO 26 MHz — 2 GHz 3142 12/13/2004 12/13/2005 5046 AM/FM Signal Generator Marconi Instru. 10 kHz — 1.2 GHz 2023A 9/16/2004 9/16/2005 713 EMI Test Receiver Rohde & Schwarz 20 Hz — 26.5 GHz ESI26 10/6/2004 10/6/2005 Fi Retlif Testing Laboratories DATA PACKAGE No. R—4392N Page 5 of

TEST SETUP PHOTOGRAPH TRANSIENT FREQUENCY BEHAVIOR Fi Retlif Testing Laboratories DATA PACKAGE No. R—4392N Page 6 of

RETLIF TE STING LABORATORIES > I in® 3 a 2z D m m -;* D & 0 Téest Method: Transient Frequency Behavior (On) Customer: DTC Communications, Inc. Test Sémple: Audio Transmitter Job‘No: fi;__R—4392N ModelNo: T—2350 Sg[ial No: > |[n/a Technician: [T. Firkowski | Test Specification: FCC Part 90 Paragraph: 90.214 | Date: _ [272872005____| OperatingMode Transmitting CW Signal @ 162.5 MHz Nb“tes:f’ 1i s MIO_.oms —A| Ch2 / 25. 0my| 27 fFeb 2005 u>~ 4 0.0000ms _| 1 1:06: 34 Data Sheet 1 of2 @,[ R—4392N

RETLIF TESTING LABORATORIES EMISSIONS DATA SHEET Test Method: Transient Frequency Behavior (Off) Customer: DTC Communications, Inc Test Sample Audio Transmitter Job No: R—4392N Model No: T—2350 Test Specification: FCC Part 90 Paragraph 90 214 Date: 2/28/2005 z Tek'_:Sl'D p w m[io. ome A . 710. Omvy 27 fFeb 2005 u~+~ [—40.4000ms) 1 1;:09: 05 Data Sheet 2 of 2 R—4392N

EQUIPMENT LIST TRANSIENT FREQUENCY BEHAVIOR EN Type Manufacturer Description Model No. Cal Date Due 5027 RF Detector Pasternack 100 kHz — 1 GHz PE8000—50 4/6/2004 4/6/2005 5040 30 DB Atten. (50 ohm) Fluke DC — 12.4 GHz Y¥9306 2/8/2005 2/8/2006 5046 AM/FM Signal Generator Marconi Instru. 10 kHz — 1.2 GHz 2023A 9/16/2004 9/16/2005 532 High Power Dir Coupler Werlatone Inc. .01 — 1000 MHz C2630 1/27/2005 1/27/2006 713 EMI Test Receiver Rohde & Schwarz 20 Hz — 26.5 GHz ESH6 10/6/2004 10/6/2005 R101 Oscilloscope Tektronix 500 MHz TDS 3052B 6/17/2004 6/23/2005 Fi Retlif Testing Laboratories DATA PACKAGE No. R—4392N Page 9 of


Document Created: 2005-03-15 14:11:17
Document Modified: 2005-03-15 14:11:17
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