Part 25 Test Report

FCC ID: L2V-STX3

Test Report

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FCCID_2173204

Test Report Prepared for: Spot, LLC Model: STX3 Description: Transmitter, Modular Satellite FCC ID: L2V-STX3 To FCC Part 25 Date of Issue: May 20, 2013 On the behalf of the applicant: Spot, LLC 300 Holiday Square Blvd. Covington, LA 70433 Attention of: Ronnie Tanner, Principal Engineer Ph: (985) 335-1513 E-Mail: ronnie.tanner@globalstar.com Prepared By Compliance Testing, LLC 3356 N San Marcos Pl, Suite 107 Chandler, AZ 85225-7176 (866) 311-3268 phone / (480) 926-3598 fax www.compliancetesting.com Project No: p1320003 Alex Macon Project Test Engineer This report may not be reproduced, except in full, without written permission from Compliance Testing All results contained herein relate only to the sample tested p1320003_FCC_Part 25_Rev 1.0 Page 1 of 33

Test Report Revision History Revision Date Revised By Reason for Revision 1.0 5/20/13 Alex Macon Original Document 2.0 10/3/13 Alex Macon Updated Power limit p1320003_FCC_Part 25_Rev 1.0 Page 2 of 33

Table of Contents Description Page Standard Test Conditions and Engineering Practices 5 Test Result Summary 6 Power Limits 7 Emissions Limitations for Mobile Earth Stations 8 Occupied Bandwidth 11 Emission Masks 14 Emissions Limits for Mobile Earth Stations 19 Frequency Tolerance (Temperature Variation) 29 Field Strength of Spurious Radiation 30 Test Equipment Utilized 33 p1320003_FCC_Part 25_Rev 1.0 Page 3 of 33

ILAC / A2LA Compliance Testing, LLC, has been accredited in accordance with the recognized International Standard ISO/IEC 17025:2005. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer joint ISO-ILAC-IAF Communiqué dated January 2009) The tests results contained within this test report all fall within our scope of accreditation, unless noted below. Please refer to http://www.compliancetesting.com/labscope.html for current scope of accreditation. Testing Certificate Number: 2152.01 FCC OATS Reg, #933597 IC Reg. #2044A-1 Non-accredited tests contained in this report: N/A p1320003_FCC_Part 25_Rev 1.0 Page 4 of 33

Test and Measurement Data All tests and measurement data shown were performed in accordance with FCC Rules and Regulations, Volume II; Part 2 and the following individual Parts: FCC Part 25 Satellite Communications. Standard Test Conditions and Engineering Practices Except as noted herein, the following conditions and procedures were observed during the testing: In accordance with ANSI C63.4-2009, section 6.1.9, and unless otherwise indicated in the specific measurement results, the ambient temperature of the actual EUT was maintained within the range of 10° to 40°C (50° to 104° F) unless the particular equipment requirements specify testing over a different temperature range. Also, unless otherwise indicated, the humidity levels were in the range of 10% to 90% relative humidity. Environmental Conditions Temp Humidity Pressure (ºC) (%) (mbar) 26.9 – 28.0 25.5 – 28.7 966.0 – 970.5 Measurement results, unless otherwise noted, are worst case measurement. EUT Description Model: STX3 Description: Transmitter, Modular Satellite FCC ID: L2V-STX3 Additional Information: The STX 3 is a simplex Satellite transmitter designed to send small packets of user defined data to a network of low earth orbiting (LEO) satellites using the Globalstar simplex satellite network. The received data is then forwarded to a user defined network interface that may be in the form of an FTP host, email account, or HTTP host where the user will interpret the data for further processing. EUT Operation during Tests EUT is placed in “Modulation Mode” using the Manufacturer’s supplied jumper connections which enable the unit to continuously transmit a test packet. The EUT is connected to a DC power supply and is supplied with a measured 3.3 volts. Accessories: None Cables: None Modifications: None p1320003_FCC_Part 25_Rev 1.0 Page 5 of 33

Test Result Summary Pass, Specification Test Name Comments Fail, N/A 25.204 Power Limits Pass 25.202(f) Emissions Limitations for Mobile Earth Stations Pass 25.202(f) Emissions Mask Pass 25.216(c)(g)(i) Emissions Limits for Mobile Earth Stations Pass 25.202(d) Frequency Tolerance Pass p1320003_FCC_Part 25_Rev 1.0 Page 6 of 33

Power Limits Name of Test: Power Limits Engineer: Alex Macon Test Equipment Utilized: i00008, i00331 Test Date: 5/7/2013 Test Procedure The UUT was connected to a Spectrum analyzer through a 20 dB attenuator. Attenuator and cable losses were input into the analyzer as a reference level offset to ensure accurate measurements were obtained. All measurements were made in a 1 MHz RBW. The EIRP is a summation of the conducted power, the antenna gain, and the bandwidth correction factor. Bandwidth correction formula: 10 log(1/2.3) = 3.6dBm Test Setup 20 dB Spectrum EUT Attenuator Analyzer Transmitter Peak Output Power Tuned Conducted Antenna EIRP Output Bandwidth CF Frequency Output Power Gain Power Specification Limit (dB) (MHz) (dBm) (dBi) (dBm) 1611.25 16.23 3.6 3.0 22.83 No limit for Mobile Earth Stations 1613.75 15.71 3.6 3.0 22.31 No limit for Mobile Earth Stations 1616.25 15.39 3.6 3.0 21.99 No limit for Mobile Earth Stations 1618.75 15.35 3.6 3.0 21.95 No limit for Mobile Earth Stations p1320003_FCC_Part 25_Rev 1.0 Page 7 of 33

Emissions Limitations for Mobile Earth Stations Emissions Limitations for Name of Test: Engineer: Alex Macon Mobile Earth Stations Test Equipment Utilized: i00008, i00331 Test Date: 5/13/2013 Test Procedure The EUT was connected directly to a spectrum analyzer and the conducted spurious emissions were measured to ensure that the EUT met the requirements specified. Only the worst case emission at each frequency was reported. Notch and high pass filters were utilized to ensure that the fundamental power did not force the input of the spectrum analyzer into compressions. These losses in addition to cable losses were input into the analyzer as a reference level offset to ensure accurate measurements were obtained. Test Setup 20 dB Spectrum EUT Attenuator Analyzer Emissions Limitations Summary Table Tuned Frequency Result Comments (MHz) 1611.25 Pass See Plots 1613.75 Pass See Plots 1616.20 Pass See Plots 1618.75 Pass See Plots p1320003_FCC_Part 25_Rev 1.0 Page 8 of 33

Emissions Limitations Plot 1611.25 MHz Emissions Limitations Plot 1613.75 MHz p1320003_FCC_Part 25_Rev 1.0 Page 9 of 33

Emissions Limitations Plot 1616.25 MHz Emissions Limitations Plot 1618.75 MHz p1320003_FCC_Part 25_Rev 1.0 Page 10 of 33

Occupied Bandwidth Name of Test: Occupied Bandwidth Engineer: Alex Macon Test Equipment: i00008, i00331 Test Date: 5/7/2013 Note: There is no requirement for occupied bandwidth in Part 25 for Mobile Earth Stations. However, the emissions masks are based upon the occupied bandwidth. This information is reported for reference only. Test Procedure The EUT was connected directly to a spectrum analyzer. The occupied bandwidth of the modulated output was measured and plotted. Attenuator and cable losses were input into the analyzer as a reference level offset to ensure accurate measurements were obtained. 20 dB Spectrum EUT Attenuator Analyzer Test Results Frequency Measured Bandwidth (MHz) (MHz) 1611.25 2.3020 1613.75 2.3216 1616.25 2.3277 1618.75 2.2986 p1320003_FCC_Part 25_Rev 1.0 Page 11 of 33

1611.25 1613.75 p1320003_FCC_Part 25_Rev 1.0 Page 12 of 33

1616.25 1618.75 p1320003_FCC_Part 25_Rev 1.0 Page 13 of 33

Emission Masks Name of Test: Emission Masks Engineer: Alex Macon Test Equipment Utilized: i00008, i00331 Test Date: 5/13/13 Test Procedure The EUT was connected directly to a spectrum analyzer to verify that the EUT met the requirements for emission mask. Attenuator and cable losses were input into the analyzer as a reference level offset to ensure accurate measurements were obtained. Test Setup Spectrum 20 dB EUT Analyzer Attenuator p1320003_FCC_Part 25_Rev 1.0 Page 14 of 33

Emission Mask Plots 1611.25 MHz Reference 1611.25 MHz Mask p1320003_FCC_Part 25_Rev 1.0 Page 15 of 33

1613.75 MHz Reference 1613.75 MHz Mask p1320003_FCC_Part 25_Rev 1.0 Page 16 of 33

1616.25 MHz Reference 1616.25 MHz Mask p1320003_FCC_Part 25_Rev 1.0 Page 17 of 33

1618.75 MHz Reference 1618.75 MHz Mask p1320003_FCC_Part 25_Rev 1.0 Page 18 of 33

Emissions Limits for Mobile Earth Stations Emissions Limits for Name of Test: Engineer: Alex Macon Mobile Earth Stations Test Equipment Utilized: i00008, i00331 Test Date: 5/13/13 Test Procedure The EUT was connected directly to a spectrum analyzer to verify that the EUT met the requirements for emission limits. Attenuator and cable losses were input into the analyzer as a reference level offset to ensure accurate measurements were obtained. Test Setup 20 dB Spectrum EUT Attenuator Analyzer p1320003_FCC_Part 25_Rev 1.0 Page 19 of 33

25.216(c) 1611.25 MHz p1320003_FCC_Part 25_Rev 1.0 Page 20 of 33

25.216(c) 1613.75 MHz p1320003_FCC_Part 25_Rev 1.0 Page 21 of 33

25.216(c) 1616.75 MHz p1320003_FCC_Part 25_Rev 1.0 Page 22 of 33

25.216(c) 1618.25 MHz p1320003_FCC_Part 25_Rev 1.0 Page 23 of 33

25.216(g) 1611.25 MHz p1320003_FCC_Part 25_Rev 1.0 Page 24 of 33

25.216(g) 1613.75 MHz p1320003_FCC_Part 25_Rev 1.0 Page 25 of 33

25.216(g) 1616.75 MHz p1320003_FCC_Part 25_Rev 1.0 Page 26 of 33

25.216(g) 1618.25 MHz p1320003_FCC_Part 25_Rev 1.0 Page 27 of 33

25.216(i) p1320003_FCC_Part 25_Rev 1.0 Page 28 of 33

Frequency Tolerance (Temperature Variation) Frequency Tolerance Name of Test: Test Engineer: Alex Macon (Temperature Variation) Limit: 0.001% Test Equipment Utilized i00008, i00027, i00331 Test Date: 5/14/2013 Test Procedure The EUT was placed inside an environmental test chamber, and connected to a spectrum analyzer. The span and RBW was adjusted for narrowband operation to ensure an accurate measurement of the CW signal. The temperature was varied from –30 to +50°C in 10°C increments. After a 30-minute soak time the output frequency was measured. At 20°C the voltage was varied +/- 15% from the nominal voltage. Test Setup EUT inside Spectrum Analyzer Environmental Test Chamber Frequency Stability vs. Temperature 1,613,752,000 1,613,751,500 Upper Limit 1,613,751,000 Frequency (Hz) 1,613,750,500 Measured 1,613,750,000 Frequency 1,613,749,500 1,613,749,000 Lower Limit 1,613,748,500 1,613,748,000 -30 -20 -10 0 10 20 30 40 50 Temperature (Centigrade) Frequency Stability vs. Voltage 1613.770 1613.765 Upper Limit 1613.760 Frequency (MHz) 1613.755 1613.750 Measured Frequency 1613.745 1613.740 Lower Limit 1613.735 1613.730 2.81 3.01 3.21 3.41 3.61 Voltage p1320003_FCC_Part 25_Rev 1.0 Page 29 of 33

Field Strength of Spurious Radiation Name of Test: Field Strength of Spurious Radiation Engineer: Alex Macon Test Equipment Utilized: i00008, i00271, i00331 Test Date: 5/15/2013 Test Procedure A) Connect the equipment as illustrated B) Adjust the spectrum analyzer for the following settings: 1) Resolution Bandwidth 100 kHz (< 1 GHZ), 1 MHZ (> 1GHz) 2) Video Bandwidth ≥ 3 times Resolution Bandwidth, or 30 kHz 3) Sweep Speed ≤2000 Hz/second 4) Detector Mode = Mean or Average Power C) Place the transmitter to be tested on the turntable in the standard test site. The transmitter is transmitting into a non- radiating load that is placed on the turntable. The RF cable to this load should be of minimum length. D) For each spurious measurement the test antenna should be adjusted to the correct length for the frequency involved. This length may be determined from a calibration ruler supplied with the equipment. Measurements shall be made from the lowest radio frequency generated in the equipment to the tenth harmonic of the carrier, except for the region close to the carrier equal to ± the test bandwidth (see section 1.3.4.4). E) For each spurious frequency, raise and lower the test antenna from 1 m to 4 m to obtain a maximum reading on the spectrum analyzer with the test antenna at horizontal polarity. Repeat this procedure to obtain the highest possible reading. Record this maximum reading. F) Repeat Step E) for each spurious frequency with the test antenna polarized vertically. G) Reconnect the equipment as illustrated. H) Keep the spectrum analyzer adjusted as in Step B). I) Remove the transmitter and replace it with a substitution antenna (the antenna should be half wavelength for each frequency involved). The center of the substitution antenna should be approximately at the same location as the center of the transmitter. At lower frequencies, where the substitution antenna is very long, this will be impossible to achieve when the antenna is polarized vertically. In such case the lower end of the antenna should be 0.3 m above the ground. J) Feed the substitution antenna at the transmitter end with a signal generator connected to the antenna by means of a non-radiating cable. With the antennas at both ends horizontally polarized and with the signal generator tuned to a particular spurious frequency, raise and lower the test antenna to obtain a maximum reading at the spectrum analyzer. Adjust the level of the signal generator output until the previously recorded maximum reading for this set of conditions is obtained. This should be done carefully repeating the adjustment of the test antenna and generator output. K) Repeat Step J) with both antennas vertically polarized for each spurious frequency. L) Calculate power in dBm into a reference ideal half-wave dipole antenna by reducing the readings obtained in Steps J) and K) by the power loss in the cable between the generator and the antenna and further corrected for the gain of the substitution antenna used relative to an ideal half-wave dipole antenna. M) The levels recorded in Step L) are absolute levels of radiated spurious emissions in dBm. The radiated spurious emissions in dB can be calculated by the following: Radiated spurious emissions dB = 10log10 (TX power in watts/0.001) – the levels in Step I) NOTE: It is permissible that the other antennas provided can be referenced to a dipole. p1320003_FCC_Part 25_Rev 1.0 Page 30 of 33

Test Setup p1320003_FCC_Part 25_Rev 1.0 Page 31 of 33

Part 2 Test Results 1611.25 MHz Emission Frequency Measured Level Limit Result (GHz) (dBm) (dBm) 3.222475 -50 -13 Pass 8.056225 -49.9 -13 Pass 9.667450 -50.69 -13 Pass 1618.75 MHz Emission Frequency Measured Level Limit Result (GHz) (dBm) (dBm) 3.237500 -46.55 -13 Pass 8.093700 -51.22 -13 Pass 9.712375 -51.82 -13 Pass No other emissions were detected. All emissions were less than –25 dBm. p1320003_FCC_Part 25_Rev 1.0 Page 32 of 33

Test Equipment Utilized Last Cal Cal Due Description MFG Model CT Asset # Date Date Power Supply Kenwood PR18-3A i00008 Verified on: 5/7/13 Temperature Chamber Tenney Tenney Jr i00027 Verified on: 5/7/13 Horn Antenna, Amplified ARA DRG-118/A i00271 4/19/12 4/19/14 Spectrum Analyzer Agilent E4407B i00331 4/23/13 4/23/14 In addition to the above listed equipment standard RF connectors and cables were utilized in the testing of the described equipment. Prior to testing these components were tested to verify proper operation. END OF TEST REPORT p1320003_FCC_Part 25_Rev 1.0 Page 33 of 33


Document Created: 2013-10-07 17:18:53
Document Modified: 2013-10-07 17:18:53
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