BOI-GXLP300LPFM Transmitter

Rev 1/26/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 7-17-2024 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID or Grantee Code: BOI-GXLP300 Applicant: FRN – 0014688824 GatesAir (“the applicant”) certifies that, as of the date of the filing of the application, we designate ourselves as the U.S. agent for service of process. Designated U.S. Agent Information: FRN: 0014688824 Company Name: GatesAir, Inc Address: 5300 Kings Island Dr. Ste 101 Contact Person: Doug Foote Tel.: 2172217336 Email: [email protected] Sincerely, Doug Foote

Rev 1/26/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 7-17-2024 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: BOI-GXLP300 GatesAir (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Rev 1/26/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 7-17-2024 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: BOI-GXLP300 GatesAir (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment.

Page 1 of 8 GX Low Power Modulator FCC Verification Measurements This document is compiled to provide the data and records supporting a Verification of Compliance with FCC rules set forth in 47CFR Parts 2.1047(73.317) and 2.1055(73.155). Verification as described in 2.902 applies to all subsequent identical units marketed. Use of the Verification method requires that the records identified in 2.955 are kept, and that they shall be retained for two years after the manufacture of the equipment has ceased. This document, along with certain other documents referenced herein, are the records for the verification of the equipment tested and described. These tests are representative of all GX Low Power Modulators. PERSONS PRIMARILY RESPONSIBLE FOR TESTING Name Toby N. Miller Signature Title Electronic Design Engineer Address for contact purposes. Gates Air Corporation 3200 Wismann Lane Quincy, Il. 62305 Telephone (217) 221-7024 Email [email protected] Name(s) of others who performed testing if applicable N/A Signature Date Signed 2/16/2024 1. Description of the EUT Gates Air® GX™ is the next generation in solid state transmission for FM analog broadcasting. The GX operates on any single channel in the 87.5-108 MHz FM band. There are three LPFM models with power output capability ranges of: GX50; 5W to 55W, GX150; 15W to 165W, & GX300; 30W to 330W, in FM only mode. The emission designator is: 400KD9W Page 2 of 8 Trade Name GX Model Tested GX Low Power Modulator FCC Identifier GX300 BOI-GXLP300 Frequency Tested Audio tests were performed at 98MHz. Type (AM, FM, TV, etc) FM RF Frequency Range 87.5MHz to 108MHz Date(s) on which testing was performed July 2023 & February 2024 Address of test location 3200 Wismann Lane Quincy, Il. 62305 2. FCC Rules Reference/Checklist √ 47CFR2 47CFR73 Other Comment Measurement Procedure 2.947 Outlines acceptable standards and procedures. Measurements Required 2.1041 NA NA Lists the required measurements according to paragraph number. These are what follows. √ Modulation Characteristics. 2.1047 73.317 NA Curve must be supplied showing the frequency response. 75us Pre-Emphasis Verification Data √ Frequency Stability. 2.1055 73.155 ANSI/TIA-603- C-2004 2.2.2 +/- 2000 Hz limit. Use data taken in an environmental chamber Page 3 of 8 3. Modulation characteristics. 3.2.1 Rule 47CFR2.1047 2.1047 (a) Voice modulated communication equipment. A curve or equivalent data showing the frequency response of the audio modulating circuit over a range of 100 to 5000 Hz shall be submitted. For equipment required to have an audio low-pass filter, a curve showing the frequency response of the filter, or of all circuitry installed between the modulation limiter and the modulated stage. 3.2.2 Criteria The AES response plots should show a steep roll-off that protects the 19 kHz pilot from modulation. Take response data with 75us Pre-emphasis Applied to the Analog input with De-emphasis in the Audio Precision. Data should be +/-0.5dB. Then remove De-emphasis from the Audio Precision and compare readings to De-emphasis curve values. 3.2.3 Test Setup Figure 1: Modulation Testing Setup. 3.2.4 Equipment used. 3.2.5 Measurement Procedure The transmitter was modulated with a 20 Hz to 20 kHz sweep. A plot of the demodulated signal was captured and is presented below. Using the same sweep for all GX Low Power units since they use the same Modulator Board. Testing performed February 2024. EquipmentModelAsset # Cal. Due Black CableN/AN/AN/A 15dB PadN/AN/AN/A Coupler Gates Air 971-0023-521 PRD651197-009 N/A LoadBird/Thermaline S/N:114100024 N/A Audio PrecisionSystem 2: 272211235 12/26/2024 FM MonitorBelar FMCS-112628N/A Page 4 of 8 3.2.6 Test Results: AES Left and Right frequency response plot 20KHz down to 20Hz. Take response data with 75us Pre-emphasis Applied to the Analog input with De-emphasis in the Audio Precision. Data should be +/-0.5dB. Then remove De-emphasis from the Audio Precision and compare readings to De-emphasis curve values. Testing performed February 2024. Page 5 of 8 Frequency (Hz)100%50%25%100%50%25% 50-0.009 -0.019 -0.019 -0.006 -0.013 -0.010 100-0.040 0.008 -0.007 0.0090.009 -0.007 400-0.008 -0.007 -0.011 -0.011 -0.010 -0.010 1000 -0.030 -0.026 -0.029 -0.027 -0.027 -0.029 3000 -0.008 -0.009 -0.010 -0.011 -0.012 -0.011 8000 -0.032 -0.028 -0.024 -0.028 -0.031 -0.024 10000 -0.033 -0.030 -0.028 -0.032 -0.031 -0.029 15000 -0.034 -0.020 -0.030 -0.032 -0.025 -0.030 Operating at TPO PowerOperating at Min Power The GX Low Power modulator has 75us Pre-emphasis Applied to the Analog input while the Audio Precision applies de-emphasis to make this data look flat. Audio Frequency (dB) using 75us Pre-emphasis MODULATIONMODULATION Audio Precision de-emphasis removed from this table Frequency (Hz)100%50%25%100%50%25% De-emphasis Value 50-0.009 -0.019 -0.019 -0.006 -0.013 -0.010 0.000 100-0.030 0.0180.0030.0190.0190.003 -0.010 4000.1670.1680.1640.1640.1650.165 -0.175 10000.8400.8440.8410.8430.8430.841 -0.870 30004.7624.7614.7604.7594.7584.759 -4.770 8000 11.788 11.792 11.796 11.792 11.789 11.796 -11.820 10000 13.627 13.630 13.632 13.628 13.629 13.631 -13.660 15000 17.036 17.050 17.040 17.038 17.045 17.040 -17.070 Operating at TPo PowerOperating at Min Power MODULATIONMODULATION Audio Frequency (dB) using 75us Pre-emphasis Page 6 of 8 4 Frequency stability. 4.1.1 Reference 47CFR2.1055 (a) The frequency stability shall be measured with variation of ambient temperature as follows: . . . . (3) From 0 deg. to +50 deg. centigrade for equipment to be licensed for use in the Radio Broadcast Services under part 73 of this chapter. (b) Frequency measurements shall be made at the extremes of the specified temperature range and at intervals of not more than 10 deg. centigrade through the range. A period of time sufficient to stabilize all of the components of the oscillator circuit at each temperature level shall be allowed prior to frequency measurement. The short-term transient effects on the frequency…

Text truncated - open the document above for the full version.

Federal CommunicaƟons Commission Authoriza Ɵon and Evalua Ɵon Division Confiden Ɵality Request regarding applicaƟon for cer Ɵfica Ɵon of FCC ID: BOI-GXLP50, BOI-GXLP150, and BOI-GXLP300. Pursuant to SecƟons 0.457 and 0.459 of the Commission’s Rules, we hereby request confidenƟal treatment of informa Ɵon accompanying this applica Ɵon as outlined below: Exhibit Type Block Diagrams Parts List Tuning Procedure Schema Ɵcs The above materials contain trade secrets and proprietary informaƟon not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjusƟfied benefits to its compe Ɵtors. The applicant understands that pursuant to SecƟon 0.457 of the Rules, disclosure of this applicaƟon and all accompanying documentaƟon will not be made before the date of the Grant for this applica Ɵon. Pursuant to DA04-1705 June 15, 2004 of the Commission’s public noƟce, we also request temporary confiden Ɵal treatment of informa Ɵon accompanying this applicaƟon as outlined below for 180 days. Exhibit Type External Photos Internal Photos Test Set Up Photos User Manual Opera Ɵonal DescripƟon Sincerely, Toby N. Miller [Applicant Printed Name] [Applicant Signature]

5300 Kings Island Dr Mason, OH USA 45040 1 800.622.0022 gatesair.com Date: 11/4/2024 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA SUBJECT: Application for Certification for FCC ID: BOI-GXLP300 To Whom It May Concern: We, the undersigned, hereby authorize _Doug Foote_ at _GatesAir_ on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by _Doug Foote_ on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, Toby N. Miller – Associate Engineer GatesAir 3200 Wismann Lane Quincy, IL 62305 United States of America office: +1 217-221-7024 [email protected]

The GX300 Label location is on the right side of the unit:

Test Report# TR_14109-24_FCC 1.1310/ MPE_ Revision: 1 Te s t Report - FCC Par t 1.1310/ MPE Applicant: GatesAir, Inc. Signature: Name & Title: Tim Royer, EMC Engineer Date of Signature 6/12/2024 Signature: Name & Title: Kristoffer Costa, EMC Technician Date of Signature 6/12/2024 This test report relates only to the items tested as identified and is not valid for any subsequent changes or modifications made to the equipment under test. 13146 NW 86 th Drive, Suite 400, Alachua, Florida 32615 (352) 472-5500 / [email protected] Page 2 of 9 This test report shall not be reproduced except in full without the written and signed permission of Timco Engineering Inc., a subsidiary of Industrial Inspection & Analysis, Inc. (IIA). Table of Contents 1. APPLICANT INFORMATION ........................................................................................................................................................................... 3 2. LOCATION OF TESTING ................................................................................................................................................................................. 3 2.1 TEST LABORATORY ...................................................................................................................................................................... 3 3. TEST SAMPLE(S) (EUT/DUT) ........................................................................................................................................................................... 3 3.1 DESCRIPTION OF THE EUT .......................................................................................................................................................... 4 4. TEST METHODS & APPLICABLE REGULATORY LIMITS ............................................................................................................................ 5 4.1 TEST METHODS/STANDARDS/GUIDANCE: .................................................................................................................................... 5 4.1.1 FCC Limits for Maximum Permissible Exposure (MPE) .......................................................................................... 5 4.2 EQUATIONS ................................................................................................................................................................................ 6 5. RF EXPOSURE RESULTS .................................................................................................................................................................................. 7 6. HISTORY OF TEST REPORT CHANGES ........................................................................................................................................................ 8 13146 NW 86 th Drive, Suite 400, Alachua, Florida 32615 (352) 472-5500 / [email protected] Page 3 of 9 This test report shall not be reproduced except in full without the written and signed permission of Timco Engineering Inc., a subsidiary of Industrial Inspection & Analysis, Inc. (IIA). 1. Applicant Information Applicant: GatesAir, Inc. Address: 5300 Kings Island Dr. Ste 101 Mason, Ohio, 45040, United States 2. Location of Testing 2.1 Test Laboratory Timco Engineering Inc. is a subsidiary of Industrial Inspection & Analysis, Inc. (“IIA”). Testing was performed at IIA’s permanent laboratory located at 13146 NW 86 th Drive, Suite 400, Alachua, Florida 32615. FCC test firm # 578780 FCC Designation # US1070 FCC site registration is under A2LA certificate # 0955.01 ISED Canada test site registration # 2056A EU Notified Body # 1177 For all designations see A2LA scope # 0955.01 3. Test Sample(s) (EUT/DUT) The test sample was received: 6/4/2024 Dates of Testing: 6/7/2024 – 6/12/2024 13146 NW 86 th Drive, Suite 400, Alachua, Florida 32615 (352) 472-5500 / [email protected] Page 4 of 9 This test report shall not be reproduced except in full without the written and signed permission of Timco Engineering Inc., a subsidiary of Industrial Inspection & Analysis, Inc. (IIA). 3.1 Description of the EUT A description as well as unambiguous identification of the EUT(s) tested. Where more than one sample is required for technical reasons (such as the use of connected units for the purpose of conducted output power testing where the product units will have integral antennas), each specific test shall identify which unit was tested. Identification FCC ID: BOI-GXLP300 Brief Description LPFM Broadcast Transmitter Model(s) # GX300 Firmware version N/A Software version N/A Serial Number N/A Technical Characteristics Frequency Range 87.5 MHz- 108 MHz RF O/P Power (Max.) 330 W Modulation FM Bandwidth & Emission Class D9W Number of Channels N/A Duty Cycle 100% Antenna Connector N Type Voltage Rating (AC or Batt.) 100-240 VAC Antenna Characteristics Antenna Frequency Range Mode / BW Antenna Gain 1 n/a n/a 0 dBi - Note: Information such as antenna gain, firmware/software numbers are provided by manufacturer and cannot be validated by the test lab. 13146 NW 86 th Drive, Suite 400, Alachua, Florida 32615 (352) 472-5500 / [email protected] Page 5 of 9 This test report shall not be reproduced except in full without the written and signed permission of Timco Engineering Inc., a subsidiary of Industrial Inspection & Analysis, Inc. (IIA). 4. Test methods & Applicable Regulatory Limits 4.1 Test methods/Standards/Guidance: The following guidance FCC KDB 447498 D01 General RF Exposure Guidance v06 was used for RF exposure evaluation as per FCC Part 1.1310 and FCC Part 2.1091 and part 2.1093. Full test results are available in this report. 4.1.1 FCC Limits for Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging Time (minutes) A Limits for Occupational/Controlled Exposure 0.3-3.0 614 1.63 *(100) ≤6 3.0-30 1842/f 4.89/f *(900/f 2 ) <6 30-300 61.4 0…

Text truncated - open the document above for the full version.

Test Report# TR_14109-24_FCC 73_ Revision: 1 Test Report - FCC Part 73/ TBC Applicant: GatesAir, Inc. Signature: Name & Title: Tim Royer, EMC Engineer Date of Signature 6/12/2024 Signature: Name & Title: Kristoffer Costa, EMC Technician Date of Signature 6/12/2024 This test report relates only to the items tested as identified and is not valid for any subsequent changes or modifications made to the equipment under test. 13146 NW 86 th Drive, Suite 400, Alachua, Florida 32615 (352) 472-5500 / [email protected] Page 2 of 41 This test report shall not be reproduced except in full without the written and signed permission of Timco Engineering Inc., a subsidiary of Industrial Inspection & Analysis, Inc. (IIA). Table of Contents 1. APPLICANT INFORMATION ........................................................................................................................................................................... 4 1.1 TEST RESULT SUMMARY ............................................................................................................................................................................................4 2. LOCATION OF TESTING ................................................................................................................................................................................. 5 2.1 TEST LABORATORY .................................................................................................................................................................................................... 5 3. TEST SAMPLE(S) (EUT/DUT) ........................................................................................................................................................................... 5 3.1 DESCRIPTION OF THE EUT ........................................................................................................................................................................................ 6 3.2 CONFIGURATION OF EUT ......................................................................................................................................................................................... 7 3.3 TEST SETUP OF EUT .................................................................................................................................................................................................. 7 4. TEST METHODS & APPLICABLE REGULATORY LIMITS ............................................................................................................................ 8 4.1 TEST METHODS/STANDARDS/GUIDANCE: ............................................................................................................................................................... 8 4.2 APPLIED LIMITS AND REGULATORY LIMITS: .............................................................................................................................................................. 8 5. MEASUREMENT UNCERTAINTY .................................................................................................................................................................... 8 6. ENVIRONMENTAL CONDITIONS ................................................................................................................................................................. 8 6.1 TEMPERATURE & HUMIDITY ...................................................................................................................................................................................... 8 7. LIST OF TEST EQUIPMENT AND TEST FACILITY ........................................................................................................................................ 9 7.1 LIST OF TEST EQUIPMENT ......................................................................................................................................................................................... 9 8. TEST RESULTS .................................................................................................................................................................................................. 11 8.1 NECESSARY BANDWIDTH (SOUND BROADCASTING) ............................................................................................................................................ 12 8.2 RF OUTPUT POWER ................................................................................................................................................................................................ 13 8.2.1 RF Output Power Plot, 88 MHz .......................................................................................................................................................... 14 8.2.2 RF Output Power Plot, 98 MHz .......................................................................................................................................................... 15 8.2.3 RF Output Power Plot, 108 MHz ........................................................................................................................................................ 16 8.3 MODULATION CHARACTERISTICS ........................................................................................................................................................................... 17 8.3.1 Results ....................................................................................................................................................................................................... 17 8.4 MODULATION LIMITING .......................................................................................................................................................................................... 18 8.4.1 Test Data/ Spectrum Plots ..........................................................................................................................................…

Text truncated - open the document above for the full version.