Test Report including Table of Contents

FCC ID: GAFMURS2

Test Report

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FCCID_163555

$TABLE OF CONTENTS LIST APPLICANT: COLUMBIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 TEST REPORT: PAGE 1......COVER SHEET - GENERAL INFORMATION & TECHNICAL DESCR. PAGE 2......TECHNICAL DESCRIPTION CONTINUED PAGE 3......RF POWER OUTPUT PAGE 4......AUDIO FREQUENCE RESPONSE PAGE 5......MODULATION LIMITING – 300 Hz PAGE 6......MODULATION LIMITING – 1000 Hz, 3000 Hz PAGE 7......EMISSION BANDWIDTH PAGE 8-9....OCCUPIED BANDWIDTH PLOTS PAGE 10.....METHOD OF MEASURING OCCUPIED BANDWIDTH PAGE 11.....FIELD STRENGTH OF SPURIOUS EMISSIONS PAGE 12.....METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS PAGE 13.....FREQUENCY STABILITY PAGE 14.....LIST OF TEST EQUIPMENT EXHIBITS CONTAINING: EXHIBIT 1.........FCC ID LABEL SAMPLE EXHIBIT 2.........SKETCH OF FCC ID LABEL LOCATION EXHIBIT 3A........EXTERNAL PHOTO - FRONT VIEW EXHIBIT 3B........EXTERNAL PHOTO – REAR VIEW EXHIBIT 3C-3D.....EXTERNAL PHOTO – SIDE VIEWS EXHIBIT 3E........EXTERNAL PHOTO - TOP VIEW EXHIBIT 3F-3G.....INTERNAL PHOTO - COMPONENT SIDE EXHIBIT 3H........INTERNAL PHOTO - SOLDER SIDE EXHIBIT 4.........BLOCK DIAGRAM EXHIBIT 5A-5B.....SCHEMATICS EXHIBIT 6.........USER'S MANUAL EXHIBIT 7.........CIRCUIT DESCRIPTION APPLICANT: COLUMBIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 REPORT #: T:\C\COLUMBIA\596ZAK1\596ZAK1TestReport.doc TABLE OF CONTENTS$

$GENERAL_INFORMATION_REQUIRED FOR_TYPE_ACCEPTANCE 2.1033(c)(1)(2)COLUMBIA TELECOMMUNICATIONS GROUP, INC.will manufacture the FCC ID: GAFMURS2 MULTI USER RADIO SERVICE TRANSCEIVER in quantity, for use under FCC RULES PART 95. The UUT is a PTT Radio with a maximum duty cycle of 50%. COLUMBIA TELECOMMUNICATIONS GROUP, INC. 174 MILBAR BLVD. FARMINGDALE NY 11735 USA 2.1033 (c) TECHNICAL_DESCRIPTION 2.1033(c)(3) Instruction book. A draft copy of the instruction manual is included as EXHIBIT 6. 2.1033(c) (4) Type of Emission: 9K6F3E 95.632 Bn = 2M + 2DK M = 3000 D = 2.0K Bn = 2(3.0)+2(1.8) = 9.6K Authorized Bandwidth – 11.25 kHz for frequencies: 151.820, 151.880, 151.940 MHz Authorized Bandwidth - 12.5 kHz for frequencies: 154.570, 154.600 MHz 2.1033(c)(5) Frequency Range: 1. 151.820 95.632 2. 151.880 3. 151.940 4. 154.570 5. 154.600 2.1033(c)(6)(7) Power Output shall not exceed 2.0 Watts effective 95.639 radiated power. There can be no provisions for 95.649 increasing the power or varing the power. The antenna is an intergral part to the unit, it cannot be removed without rendering the unit inoperative. In order to remove the antenna the case must unscrewed, then the PCB assemblies must be removed then the antenna can be removed. APPLICANT: COLUMBIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 REPORT #: T:\C\COLUMBIA\596ZAK1\596ZAK1TestReport.doc PAGE #: Page 1 of 14$

$2.1033(c)(9) Tune-up procedure. The tune-up procedure is included in the IN USER'S MANUAL. 2.1033(c)(8) DC Voltages and Current into Final Amplifier: FINAL AMPLIFIER ONLY High - Vce = 6.0 Volts DC Ice = 0.5A Pin = 3 Watts Low - Vce = 6.0 Volts DC Ice = 0.13A Pin = 0.78 Watts 2.1033(c)(10) Complete Circuit Diagrams: The circuit diagram is included as EXHIBIT 5A & 5B of this report. The block diagram is included as EXHIBIT 4 of this report. 2.1033(c)(11) A photograph or a drawing of the equipment identification label is included as exhibit No. 1. 2.1033(c)(12) Photographs(8"X10") of the equipment of sufficient clarity to reveal equipment construction and layout, including meters, labels for controls, including any view under shields - See EXHIBIT 3A-3H. 2.1033(c)(13) Digital modulation is not not used in this device. 2.1033(c)(14) The data required by 2.1046 through 2.1057 is submitted below. APPLICANT: COLUMBIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 REPORT #: T:\C\COLUMBIA\596ZAK1\596ZAK1TestReport.doc PAGE #: Page 2 of 14$

$2.1046(a) RF_power_output. 95.639(g) RF power is measured by measuring the radiated power at 3 meters and then replacing the transmitter with a signal generator to determine the effective radiated power. The ERP shall not exceed 2.0 Watts. MEASURED POWER OUTPUT = 0.5 Watts ERP HIGH POWER .033 Watts ERP LOW POWER R.F. POWER OUTPUT HP TEST SET UP Spectrum Analyzer TRANSMITTER UNDER TEST WITH INTERNAL ANTENNA <-- 3.0 meters---> SIGNAL DIPOLE Tuned, Calibrated GENERATOR ANTENNA Antenna which may be raised from 1 to 4 meters above ground and changed in polarization Equipment placed 80cm above ground on a rotatable platform. APPLICANT: COLUBMIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 REPORT #: T:\C\COLUBMIA\596ZAK1\596ZAK1TESTREPORT.DOC PAGE #: Page 3 of 14$

$2.1047(a)(b) Modulation_characteristics: AUDIO_FREQUENCY_RESPONSE The audio frequency response was measured in ac- cordance with TIA/EIA Specification 603. The audio frequency response curve is shown below. The audio signal was fed into a dummy microphone circuit and into the microphone connector. The input required to produce 30 percent modulation level was measured. Columbia Telecomm GAFMURS2 4 3.5 3 rms mVolts 2.5 2 audio response 1.5 1 0.5 0 100 1000 10000 Frequency APPLICANT: COLUBMIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 REPORT #: T:\C\COLUBMIA\596ZAK1\596ZAK1TESTREPORT.DOC PAGE #: Page 4 of 14$

$2.1047(b) Audio input versus modulation The audio input level needed for a particular per- percentage of modulation was measured in accor- dance with TIA/EIA Specification 603. The audio input curves versus modulation are shown below. Curves are provided for audio input frequencies of 300, 1000, and 3000 Hz. Modulation Limiting Columbia Telecomm GAFMURS2 600 500 Deviation 400 300 300 Hz 200 100 0 0 50 100 150 200 rms mVolts APPLICANT: COLUBMIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 REPORT #: T:\C\COLUBMIA\596ZAK1\596ZAK1TESTREPORT.DOC PAGE #: Page 5 of 14$

$Modulation Limiting COLUMBIA TELECOMMUNICATION GAFMURS2 2000 1500 Deviation 1000 1000 Hz 500 0 0 20 40 60 80 100 120 rms mVolts Modulation Limiting Columbia Telecomm GAFMURS2 2500 2000 Deviation 1500 3000 Hz 1000 500 0 0 20 40 60 80 rms mVolts APPLICANT: COLUBMIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 REPORT #: T:\C\COLUBMIA\596ZAK1\596ZAK1TESTREPORT.DOC PAGE #: Page 6 of 14$

$EMISSION BANDWIDTH: 95.633(c) 90.210(b) Emission Mask B. For transmitters that are equipped with an audio low pass filter pursuant to § 90.211(a), the power of any emission must be below the unmodulated carrier power (P) as follows : (1) On any frequency removed from the assigned frequency by more than 50 percent, but not more than 100 percent of the authorized bandwidth : At least 25dB. (2) On any frequency removed from the assigned frequency by more than 100 percent, but not more than 250 percent of the authorized bandwidth : At least 35dB. (3) On any frequency removed from the assigned frequency by more than 250 percent of the authorized bandwidth: At least 43+10 log (P) dB. 90.210(d) Emission Mask D. 12.5 kHz channel bandwidth equipment. For transmitters designed to operate with a 12.5 kHz channel bandwidth, any emission must be attenuated below the power (P) of the highest emission contained within the authorized bandwidth as follows: (1) On any frequency for the center of the authorized bandwidth f to 5.625 kHz removed from f : Zero dB. (2) On any frequency removed from the center of the authorized bandwidth by a displacement frequency (f in kHz) of more than 5.625 kHz but no more than 12.5 kHz: At least 7.27 (f - 2.88kHz) dB. (4) On any frequency removed from the center of the authorized bandwidth by a displacement frequency (f in kHz) of more than 12.5kHz: Atleast 50+10 log (P) dB or 70dB, whichever is the lesser attenuation. APPLICANT: COLUBMIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 REPORT #: T:\C\COLUBMIA\596ZAK1\596ZAK1TESTREPORT.DOC PAGE #: Page 7 of 14$

$Radiotelephone transmitter with modulation limiter. Test procedure diagram OCCUPIED BANDWIDTH MEASUREMENT Coupler Transmitter 50 ohm under test Resistive Wattmeter Audio Spectrum Oscillator Analyzer 2.1051 Not Applicable, no external antenna terminal. APPLICANT: COLUBMIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 REPORT #: T:\C\COLUBMIA\596ZAK1\596ZAK1TESTREPORT.DOC PAGE #: Page 10 of 14$

$2.1053 SPURIOUS EMISSIONS: 95.635(c) REQUIREMENTS: Emissions must be attenuated by at least the following below the output of the transmitter. HIGH POWER 43 + 10log(.5) = 39.99 dB LOW POWER 43 + 10log(.033) = 28.19 dB TEST DATA: Emission Frequency Ant. Margin MHz Polarity dBc dB LOW POWER 151.90 V 0.00 0.00 303.90 H 38.18 9.99 455.90 V 44.80 16.61 607.50 H 54.85 26.66 759.80 V 57.31 29.12 911.80 H 65.24 37.05 1063.70 H 49.73 21.54 1215.70 V 42.73 14.44 1367.70 V 45.73 17.54 1519.00 V 57.78 27.59 HIGH POWER 154.60 V 0.00 0.00 309.20 H 41.05 1.06 463.80 H 59.27 19.28 618.40 H 51.72 11.73 773.00 V 58.88 18.89 927.60 V 57.11 17.12 1082.20 V 70.30 30.31 1236.80 V 77.50 37.51 1391.40 V 71.10 31.11 1546.00 V 70.75 30.76 MARGIN = (Field strength of Fund – 39.99 dB) - FS OF EMISSION (HIGH) MARGIN = (Field strength of Fund – 28.19 dB) - FS OF EMISSION (LOW) METHOD OF MEASUREMENT: The procedure used was TIT/EIA STANDARD 603 USING THE SUBSTITUTION method. The spectrum was scanned from 30 to at least the tenth harmonic of the fundamental using a HP model 8566B spectrum analyzer, and an appropriate antenna - see test equipment list. Measurements were made at the open field test site of TIMCO ENGINEERING INC. located at 849 N.W. State Road 45, Newberry, FL 32669. APPLICANT: COLUBMIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 REPORT #: T:\C\COLUBMIA\596ZAK1\596ZAK1TESTREPORT.DOC PAGE #: Page 11 of 14$

$2.1053 SPURIOUS EMISSIONS: 95.635 Method of Measuring Radiated Spurious Emissions Hewlett Packard Spectrum Analyzer HP8566B TRANSMITTER INTEGRAL ANTENNA UNDER TEST <- 3.0m > Tuned, Calibrated Antenna which may be raised from 1m to 4m above ground POWER SUPPLY and changed in polarization Equipment placed 80cm above ground on a rotatable platform. APPLICANT: COLUBMIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 REPORT #: T:\C\COLUBMIA\596ZAK1\596ZAK1TESTREPORT.DOC PAGE #: Page 12 of 14$

$95.632(c) Frequency_stability: 2.1055 Temperature and voltage tests were performed to verify that the frequency remains within the 0.00050%, 5.0 ppm specification limit if the device is designed to operate with 11.25 kHz or 12.5 kHz authorized bandwidth and .00020%, 2.0 ppm if the device is designed to operate with 6.25 kHz authorized bandwidth. The test was conducted as follows: The transmitter was placed in the temperature chamber at 25 degrees C and allowed to stabilize for one hour. The transmitter was keyed ON for one minute during which four frequency readings were recorded at 15 second intervals. The worse case number was taken for temperature plotting. The assigned channel frequency was considered to be the reference frequency. The temperature was then reduced to -30 degrees C after which the transmitter was again allowed to stabilize for one hour. The transmitter was keyed ON for one minute, and again frequency readings were noted at 15 second intervals. The worst case number was recorded for temperature plotting. This procedure was repeated in 10 degree increments up to + 50 degrees C. Readings were also taken at plus and minus 15% of the battery voltage of 6 VDC. MEASUREMENT DATA: Assigned Frequency (Ref. Frequency): 154.600 000 TEMPERATURE°C FREQUENCY_MHz PPM REFERENCE_____________ 154.600 000 00.00 -30_____________ 154.599 344 -4.26 -20_____________ 154.600 093 0.60 -10_____________ 154.600 019 0.12 0_____________ 154.600 212 1.38 +10_____________ 154.600 216 1.40 +20_____________ 154.600 012 0.78 +30_____________ 154.599 991 -0.06 +40_____________ 154.599 884 -0.75 +50_____________ 154.599 904 -0.62 BATT. End-Point 5.1V/dc 154.599 946 -0.35 BATT. End-Point 6.9V/dc 154.599 947 -0.34 RESULTS OF MEASUREMENTS: The maximum frequency variation over the temperature range was –4.26 to +1.40 ppm. The maximum fre- quency variation with voltage was –0.35ppm. APPLICANT: COLUBMIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 REPORT #: T:\C\COLUBMIA\596ZAK1\596ZAK1TESTREPORT.DOC PAGE #: Page 13 of 14$

$TEST EQUIPMENT LIST 1. Spectrum Analyzer: HP 8566B-Opt 462, S/N 3138A07786, w/ preselector HP 85685A, S/N 3221A01400, Quasi-Peak Adapter HP 8565OA, S/N 3303A01690 & Preamplifier HP 8449B-OPT H02, S/N 3008A00372 2. Biconnical Antenna: Eaton Model 94455-1, S/N 1057, 3. Biconnical Antenna: Electro-Metrics Model BIA-25, S/N 1171 4. Log-Periodic Antenna: Electro-Metrics Model EM-6950, S/N 632 5. Log-Periodic Antenna: Electro-Metrics Model LPA-30, S/N 409 6. Double-Ridged Horn Antenna: Electro-Metrics Model RGA-180, 1-18 GHz, S/N 2319 7. 18-26.3GHz Systron Donner Standard Gain Horn #DBE-520-20 8. Horn 40-60GHz: ATM Part #19-443-6R 9. Line Impedance Stabilization Network: Electro-Metrics Model ANS-25/2, S/N 2604 10. Temperature Chamber: Tenney Engineering Model TTRC, S/N 11717-7 11. Frequency Counter: HP Model 5385A, S/N 3242A07460 12. Peak Power Meter: HP Model 8900C, S/N 2131A00545, 13. Open Area Test Site #1-3meters 14. Signal Generator: HP 8640B, S/N 2308A21464 15. Signal Generator: HP 8614A, S/N 2015A07428 16. Passive Loop Antenna: EMCO Model 6512, 9KHz to 30MHz, S/N 9706-1211 17. Dipole Antenna Kit: Electro-Metrics Model TDA-30/1-4, S/N 153 18. AC Voltmeter: HP Model 400FL, S/N 2213A14499 19. Digital Multimeter: Fluke Model 8012A, S/N 4810047 20. Digital Multimeter: Fluke Model 77, S/N 43850817 21. Oscilloscope: Tektronix Model 2230, S/N 300572 APPLICANT: COLUBMIA TELECOMMUNICATIONS GROUP, INC. FCC ID: GAFMURS2 REPORT #: T:\C\COLUBMIA\596ZAK1\596ZAK1TESTREPORT.DOC PAGE #: Page 14 of 14$

Document Created: 2019-11-05 20:08:05
Document Modified: 2019-11-05 20:08:05