IP9ECHO-TX9ALaw Enforcement Audio Surveillance Transmitter

June 26, 2001 Federal Communications Commission Equipment Authorization Division RE: Request for Confidentiality, FCC ID IP9ECHO-TX9A This letter is to request that all applicable documents with the application for FCC Type Certification for IP9ECHO-TX9A be noted as Confidential and withheld from public disclosure. This request is concurrent with the FCC rules (section 0.457(d)) and the Freedom of Information Act (section 0.552(b)(4)). Public disclosure of the design information would put Tactical Technologies Inc. at a disadvantage competitively. Thank you very much for your attention to this. Sincerely, Jeffrey Olsen Engineer Tactical Technologies Inc

September 4, 2001 Federal Communications Commission Equipment Authorization Division RE: Request for Confidentiality, FCC ID IP9ECHO-TX9A This letter is a request to hold the following documents pertaining to the application for FCC Type Certification for IP9ECHO-TX9A as confidential and to withhold them from public disclosure. This request is concurrent with the FCC rules (section 0.457(d) and section 0.459) and the Freedom of Information Act (section 0.552(b)(4)). The documents are: 1.) All schematic diagrams 2.) All circuit descriptions 3.) All parts lists 4.) All circuit block diagrams 5.) All internal photographs Public disclosure of these pieces of design information would put Tactical Technologies Inc. at a substantial disadvantage competitively. Tactical Technologies Inc. does not make the above information available to the general public. Thank you very much for your attention to this. Sincerely, Jeffrey Olsen Engineer Tactical Technologies Inc

September 7, 2001 Federal Communications Commission Equipment Authorization Division RE: Request for Confidentiality, FCC ID IP9ECHO-TX9A This letter is a request to hold the following documents pertaining to the application for FCC Type Certification for IP9ECHO-TX9A as confidential and to withhold them from public disclosure. This request is concurrent with the FCC rules (section 0.457(d) and section 0.459) and the Freedom of Information Act (section 0.552(b)(4)). The documents are: 1.) All schematic diagrams 2.) All circuit descriptions 3.) All parts lists 4.) All circuit block diagrams Public disclosure of these pieces of design information would put Tactical Technologies Inc. at a substantial disadvantage competitively. Tactical Technologies Inc. does not make the above information available to the general public. Thank you very much for your attention to this. Sincerely, Jeffrey Olsen Engineer Tactical Technologies Inc

Part 90 Testing ECHO TX Two Channel Crystal Voice Transmitter FCC ID: IP9ECHO-TX9A Performed by Tactical Technologies Inc. 1701 Second Ave Folsom, PA 19033 610-522-0106 June 25, 2001 The audio frequency response, low pass filter test, occupied bandwidth, and frequency stability in this application for FCC Type Certification have been performed under my direct supervision. To the best of my knowledge these tests were conducted in accordance with the procedures outlined in Part 2 and Part 90 of the Commission's Rules and Regulations. I am presently employed by Tactical Technologies Inc. in Folsom, Pennsylvania as a Design Engineer. My prior experience consists of 10 years of designing and testing communications products in the VHF portion of the spectrum. Sincerely, Jeffrey N. Olsen Engineer Tactical Technologies Inc. A. INTRODUCTION The following data are submitted in connection with this Application for Type Certification in accordance with Part 2, Subpart J, and Part 90, Subparts B,D, and I of the FCC Rules and Regulations. B. INFORMATION REQUIRED BY PART 2 2.1003(a) See Form 731 2.1033(b) N/A 2.1003(c)(1) The full name and address of the applicant and manufacture for certification is: Tactical Technologies Inc. 1701 Second Ave. P.O. Box 91 Folsom, Pa. 19033 (2) The FCC Identifier of this device is IP9ECHO-TX9A (3) Operating Instructions are included in the Exhibits. (4) Emission: NBFM Voice – 11K2F3 Emission Calculations are included in the Exhibits. (5) Frequency Range 150 – 174 Mhz (6) Output Power of the device is 2000mw. @ 12 Volts (7) Maximum Power Rating is 2000mw. (8) All of the Transmitters sections run off of regulated +5.0 Volts, and the RF Final transistor runs on 12 Volts. (9) Tune up procedure are included in the Exhibits. (10) Schematics are included in the Exhibits. (11) A drawing of the equipment identification label are included in the Exhibits. (12) Photographs of the internal and external construction of the device are included in the Exhibits. (13) N/A (14) Test Data required by Part 2.1046 through 2.1057, inclusive, is measured in accordance with the procedure in Part 2.1041. (15) N/A (16) N/A (17) N/A C. SUBMISSION OF EQUIPMENT FOR TESTING - Paragraph 2.943 Upon request, the test sample will promptly be made available by Radiation Science Inc. D. DESCRIPTION OF MEASUREMENT FACILITIES - Paragraph 2.947 The open-field tests were performed on the 3 meter range maintained by Radiation Science Inc. Complete description and measurement data have been placed on file with the Commission. E. TEST DATA This section contains results of measurements required by Parts 2 and 90 of the rules. Data are presented in tabular and/ or graphical form, and measurement procedures are described within the text of each reported test. The test sample operated on 163.9125 MHz. 1. RF POWER OUTPUT - Paragraphs [2.1046(a),2.1033(c)(8),90.205(d)] Measurements pertaining to the power output of the transmitter were performed by the manufacturer. To the best of my knowledge, these tests were conducted in accordance with the procedures outlined in Parts 2 and 90 of the Commissions Rules and regulations. The data presented on Table 1 demonstrates compliance with the appropriate technical standards. 2. MODULATION CHARACTERISTICS - Paragraph [2.1047(a), 90.211(a)] Measurements pertaining to the modulation characteristics were performed by the manufacture. To the best of my knowledge, these tests were conducted in accordance with the procedures outlined in Parts 2 and 90 of the Commission's Rules and regulations. The data presented on figures 1 and 2 demonstrates compliance with the appropriate technical standards. 3. OCCUPIED BANDWIDTH - Paragraphs [2.1049, 90.211(a)] Figures 3 and 4 contain pictures taken from a Hewlett Packard 8558B Spectrum Analyzer. The transmitter was modulated with a sine wave tone at 2500 Hz at a level 16 dB above the required to produce 50% modulation at the frequency maximum response. Paragraph 90.210(d) requires that the mean power of emissions shall be attenuated below the mean output power of the transmitter by the following amounts. (a) On any frequency removed from the center of the authorized bandwidth f0 to 5.625 khz removed from f0; Zero db. (b) On any frequency removed from the center of the authorized bandwidth by a displacement frequency (fd in khz) of more than 5.625 khz but no more than 12.5 khz. At least (fd – 2.88khz)db. (c) On any frequency removed from the center of the authorized Bandwidth by a displacement frequency (fd in khz) of no more than 12.5 khz. At least 50 + log(P) or 70db, whichever is the lesser attenuation. ̋ ̋ ̋ ̋ 4. SPURIOUS EMISSIONS AT THE 50 OHM TEST POINT ON THE TRANSMITTER [2.1053, 90.209 Emission Mask D] The transmitter was modulated per paragraph 2.1053 The spectrum was checked with the spectrum analyzer from 10 MHz to the 10th harmonic of the carrier frequency. Observed emissions not reported are attenuated more than 20 dB below the permissible value of 53 dB, i,e., 50 + log (2W) = 53 dB given by Section 90.209. The data in Table 1 verifies that the test sample complies with Paragraph 90.209(c)(3). TABLE 1 CONDUCTED SPURIOUS EMISSIONS DATA EMISSION EMISSION FCC FREQUENCY LEVEL LIMIT (MHz) (dBc) (dBc) 163.9 REFEERENCE +33 dBm 53 327.8 -59 53 419.7 -68 53 655.6 -75 53 819.5 >-75 53 983.4 >-75 53 1147.3 >-75 53 1311.2 >-75 53 1475.1 >-75 53 1639.0 >-75 53 5. FIELD STRENGTH OF SPURIOUS RADIATION - Paragraphs [2.1053,90.209] Measurements were made on the three meter range maintained by Radiation Science Inc. to quantify spurious emission level that] are radiated directly from the cabinet, control circuits, power leads and intermediate circuit elements under normal conditions of installation and operation. Particular attenuation was paid to harmonics of the carrier frequency as well as those frequencies removed from the carrier by multiples of the oscillator frequency. Data is submitted in Table 2 showing the magnitude of harmonics and other…

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INPUT SIGNAL LEVEL VS. DEVIATION ECHO TX FCC ID # IP9ECHO-TX9A 0.0% 20.0%40.0%60.0%80.0% 100.0%120.0% 100Hz 300Hz 500Hz 750Hz 1000Hz 1500Hz 2000Hz 2500Hz 3000Hz 4000Hz 5000Hz FREQUENCY Series 1 = -60Dbm Series 2= -50Dbm Series 3 = -40Dbm Series 4 = -30Dbm DEVIATION Series1Series2Series3Series4

5.FIELD STRENGTH OF SPURIOUS RADIATION - Paragraph [2.933,2.997,90.209(c)(3)] Measurements were made on the three-meter range maintained by Radiation Science Inc. Radiated emissions were measured with the antenna in both vertical and horizontal polarization's. The antenna was raised 1 to 4 Meters in height and the equipment under test (EUT) was rotated 360 degrees To maximize the emission. During radiated emissions testing the EUT was scanned from 30 - 1600 MHz (10 times the fundamental frequency). An average factor of 20dB was applied to the level of the fundamental Emission when compared to the FCC limit. ALL LEVELS COMPLY WITH APPLICABLE LIMITS. Vertical: Level Antenna Cable Averaging Field Strength FCC MHz Height(m) dbuV Factor(db) Loss(db)Factor(db) @3m dbm dbc LIMIT 163.91 1.00 97.0 13.0 1.6 -20 -15.4 Reference 327.83 1.90 22.0 15.0 2.0 -20 -88.0 72.6 53dbc 655.65 2.90 16.0 19.0 4.0 -20 -88.0 72.6 53dbc 819.56 1.40 12.0 22.0 4.0 -20 -89.0 73.6 53dbc 1147.0 1.40 11.0 26.0 4.0 -20 -86.0 70.6 53dbc Horizontal: Level Antenna Cable Averaging Field Strength FCC MHz Height(m) dbuV Factor(db) Loss(db)Factor(db) @3m dbm dbc LIMIT 163.91 1.80 91.0 13.0 1.6 -20 -21.4 Reference 327.83 1.90 26.0 15.0 2.0 -20 -81.0 62.6 53dbc 655.65 1.30 17.0 20.0 4.0 -20 -86.0 67.6 53dbc 819.56 1.30 15.0 22.0 4.0 -20 -86.0 64.6 53dbc 1147.0 1.30 9.0 26.0 4.0 -20 -88.0 66.6 53dbc 50 + 10log(2) = 53dbc (FCC limit)

INPUT SIGNAL LEVEL VS. DEVIATION ECHOiiW FCC ID # IP9ECHO-TX9A 0.0% 20.0%40.0%60.0%80.0% 100.0%120.0% 100Hz 300Hz 500Hz 750Hz 1000Hz 1500Hz 2000Hz 2500Hz 3000Hz 4000Hz 5000Hz INPUT VOLTAGE VS. FREQUENCY Series 1 = +10Dbm Series 2= 0Dbm Series 3 = -10Dbm Series 4 = -20Dbm DEVIATION 100% = 2.5Khz 40% = 1.0 Khz Series1Series2Series3Series4

BLOCK DIAGRAM IP9ECHO-TX9 A Transient Freque ncy Behavior 90.214 50 Ohm Termina tio n UnitAttenuatorDirectionalAttenuatorCombinerModulated UnderCouplerSignal Tes tGe nera tor Tes t Receiver RF De tecto rTriggerOscillos cope The unit under test (IP9ECHO-TX9A) was connected to a Directional Coupler. The two outputs from the coupler were connected to a RF Detector Diode and the other output from the coupler was combined with a 25kHz FM modulated test signal. The output from the combiner was connected to a test receiver, the demodulated audio from the receiver was connected to the oscilloscope input and the external trigger input on the oscilloscope was connected to the output of the RF diode detector. Power was applied to the test unit from a power supply, and the unit was turned OFF/ON manually with a test lead applied to the positive terminal of the power supply. Three time periods were captured on the storage oscilloscope and recorded. The two pictures show the turn on and turn off points and the related frequency displacement. The t1 and t2 mask limits are superimposed on the TOP photograph (ON to OFF), and the t3 mask limit is superimposed on the BOTTOM photograph (OFF to ON).

5. FIELD STRENGTH OF SPURIOUS RADIAT ION - Paragraphs [2.1053,90.209] Measurements were made on the three-meter range maintained by Radiation Science Inc. to quantify spurious emission level that are radiated directly from the cabinet, control circuits, power leads and intermediate circuit elements under normal conditions of installation and operation. Particular attenuation was paid to harmonics of the carrier frequency as well as those frequencies removed from the carrier by multiples of the oscillator frequency. Data is submitted in Table 2 showing the magnitude of harmonics and other spurious emissions from 30 MHz through the 10th harmonic. The test sample was placed on a non-conductive table one meter above the ground plane in order to determine the maximum level at each emission. Both horizontal and vertical site antenna polarizations were employed. The antenna was raised 1 to 4 meters in height and the equipment under test was rotated 360 degrees to minimize the emission. The reference level for spurious radiation was taken as a ideal dipole excited by the measured output power according to the following relationship: E = (49.2 P) 1/2 / R Where:E = electric-field intensity in Volts/meter P = transmitted power in Watts R = distance in meters For this case: E = 1.17 V/M = 124.4 dBu/m. The permissible value of spurious emissions is equal to or less than 124.4 dBu/m - (50 + 10log(2) = 83.4 dBu/m. Any observed spurious emissions not reported were more than 20 db below the permitted level. TABLE 2 FIELD STRENGTH OF RADIATED EMISSION @3m EMISSION ANTENNA EMISSION ANTENNA FIELD EMISSION FCC FREQUENCY POLARITY LEVEL FACTOR STRENGTH LEVEL LIMIT MHz (H,V) dbuv dB dbuv Dbc Dbc 163.91 V 97.0 14.6 111.6 Reference 327.83 V 22.0 17.0 39.0 72.6 53 655.65 V 16.0 23.0 39.0 72.6 53 819.56 V 12.0 26.0 38.0 73.6 53 1147.0 V 11.0 30.0 41.0 70.6 53 163.91 H 91.0 14.6 105.6 Reference 327.83 H 26.0 17.0 43.0 62.6 53 655.65 H 17.0 23.0 40.0 65.6 53 819.56 H 15.0 26.0 41.0 64.6 53 1147.0 H 9.0 30.0 39.0 66.6 53 Radiation Science Inc made table 2 measurements. They calculated them out for Part 15 not Part [90.209]. The above measurements were copied from their test result paper and calculated for Part [90.209(c)(3). The data from Table 2 verifies that the test sample complies with Paragraph 90.209(c)(3). The results from Table 2 above were compared to Radiation Science's Test Site Standards as supplied via Figure 4, Figure 5, Data Sheet 1, and Data Sheet 2 in the PDF exhibit "RSITestSite.pdf". Table 2B below represents the Test Site Standards substituted to reproduce the same field strength levels @ 3 meters (ANSI/TIA/EIA-603-1992). Table 2B VERTICAL MHZ Test Site DBc FCC Limit Pwr DBm 50 + 10 log(2) 163.91 +31.7 DBm Reference 327.83 -47.1 DBm 79.8 DBc 53 655.65 -47.9 DBm 79.6 DBc 53 819.56 >80 DBc 53 1147.0 >80 DBc 53 HORIZONTAL MHZ Test Site DBc FCC Limit Pwr DBm 50 + 10 log(2) 163.91 +29.6 DBm Reference 327.83 -40.4 DBm 70.0 DBc 53 655.65 -45.0 DBm 74.6 DBc 53 819.56 >80 DBc 53 1147.0 >80 DBc 53