2ACGIARG-TX900MUHF wireless transmitter

Audio Resource Group, Inc. UHF wireless transmitter AUDIO RESOURCE GROUP 900MHZ MINI TRANSMITTER USERS MANUAL Thanks for purchasing our 900MHz mini products. The 900MHz mini wireless audio system allows multi‐transmitters and multi‐receivers to be used in the same field. Simply plug the microphone or other audio sources into the MIC jack on the transmitters. The person holding the receiver can choose the channel that they want to hear. They are very small, light‐weighted and user‐friendly. Safety Instructions a. Read all instructions before using the devices. Follow printings on the devices. b. Use the power adapter or charging case provided with the devices. c. Keep the devices away from water and fire. d. Do not attempt to service the devices yourself. Please contact your dealer or ARG directly for maintenance and replacements. Warranty Audio Resource Group provides two years warranty from the purchase date on transmitters and receivers. During the warranty period, if the material and workmanship is determined to be defective by our repair center, we will: 1) Repair the product with the new or rebuilt parts, or 2) Replace the product at no charge with new or rebuilt comparable products or parts 900MHz Transmitter Diagram Transmitter LCD Display Diagram 1. Mute Icon (when there is a mute icon on the display, the transmitter is muted; vice versa) 2. Signal Strength 3. HI (It is for switching sampling rate, when there is “HI”, it is 16k sampling rate; while there is not, it is 8k sampling rate) 4. Channel or Volume Icon and its value 5. Lock Icon 6. Battery status (when the battery status is low, please charge the device soon) 1 2 3 4 5 6 7 7. Mic or Line Input Icon (when it is “Mic” on the display, the transmitter accepts microphone input; while it is “Line” on the display, the transmitter accepts line input.) Transmitter Programming Instructions POWER UP Switch the transmitter to ON position. The display will show the Volume level for a second then change to Channel Number. INPUT SOURCE SELECTION When it is a microphone that you plug in, please hold the “‐“ button and turn on the transmitter and there will be a “Mic” icon on the display; While you need to use the line input, please hold the “+” button and turn on the transmitter and there will be a “Line” icon on the display. Make sure the input source selection matches the input source being connected. MUTE Press and hold the SET button for two seconds to mute the transmitter. Do it again to unmute. VOLUME/CHANNEL ADJUSTMENT On OFF position, press and hold the “SET” button and turn on the transmitter. Use the “SET” button to adjust the volume level (01‐07). Use the “–“ or “+” button to scroll through the channel numbers (01‐25). SAMPLING RATE SWITCH On OFF position, press and hold the “ –“ & “+” buttons and turn the transmitter to ON position. When there is “HI” icon on the display, it means that the device sampling rate is set at 16KHz; When there is none, it means that it is set at 8KHz. Troubleshooting 1) When there is STATIC INTERFRENCE or NO SOUND, please go through the following procedures to eliminate the problems. a. Make sure that the transmitter and receiver are set on the same channel. b. Check the Mute setting on the transmitter. c. Check whether two transmitters are set at the same channel. Avoid two transmitters to be on the same channel. d. Sound level on the line input source may be too high. 2) When a NOISY SOUND occurs, please go through the following procedures to eliminate the problems. a. Make sure that the transmitter and receiver are within the distance range. b. Make sure that the sound level on the transmitter and audio sources are set at a reasonable level. c. Try changing the transmitter to a different frequency to see if the sound quality improves. In case the problem persists, please consult your dealer or ARG. Technical Specifications Frequency Range: 903MHz – 927MHz Modulation: O‐QPSK Audio sampling: 8bit @8KHz; 8bit @ 16KHz Dynamic range: >80Db SNR: >78dB THD at 1KHz: <1% Channels: 25 Channel spacing: 1MHz 900MHz Mini Transmitter RF output: 15dBm±1 Audio Input: 3.5mm mono Mic /Line (Bodypack) Power consumption: 3.7V600mAH (Bodypack) Operation hours: >16 hours (Bodypack) Charging time: 2 hours, smart charging Weight: 34g FCC Compliance Statement This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ‐‐ Reorient or relocate the receiving antenna. ‐‐ Increase the separation between the equipment and receiver. ‐‐ Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. ‐‐ Consult the dealer or an experienced radio/TV technician for help. This device meets the government’s requirements for exposure to radio waves. This device is designed and manufactured not to exceed the emission limits for exposure to rad…

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Audio Resource Group, Inc. Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Request for Confidentiality Company name: UHF wireless transmitter FCC ID : 2ACGIARG-TX900M FCC Part 15 Certification Gentlemen, Pursuant to 47 CFR 0.457(d)(1)(ii) and 0.459 we hereby requests permanent confidentiality of the following documents for the subject application: Exhibit Type Description ☒ Schematics All circuitry of devices and component values ☒ Block Diagrams Details of device showing the frequency of all oscillators ☒ Operational Description Description of the circuit functions Note: Exhibit types that are commonly held confidential are: (1) Schematics, (2) Block Diagrams, (3) Bill Of Materials, (4) Operational Descriptions. Any exhibit NOT granted confidentiality is viewable on the FCC website as soon as a grant is issued. These documents contain detailed system and equipment description and related information about the product which we considers to be proprietary, confidential and a custom design and otherwise would not release to the general public. Since the design is a basis from which future technological products will evolve, we consider that this information would be of benefit to its competitors and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Yours sincerely, Signatory Name Rick Allerdings Company Name Audio Resource Group, Inc. Address 405 Main Ave W, Suite 4G, West Fargo, ND58078,US Tel 701-540-0750 Fax 701-540-0750 Email [email protected]

Audio Resource Group, Inc. Date: 23.05.2014 Authority to Act as an Agent We declare that the following representative (agent) Name Mark Zhu Position Manager Company Name Shenzhen Certification Technology Service Co., Ltd. Address 2F, Building B, East Area of Nanchang Second Industrial Zone, Gushu 2 nd Road, Bao’an District, Shenzhen 518126, P.R. China Tel / Fax 0755-86375541/0755-26736857 Email [email protected] to act on our behalf on all matters concerning the application and documents submitted to PHOENIX TEST-LAB for product certification below Product Name UHF wireless transmitter Model Name ARG-TX900M , ARG-TX900MINI Brand Name ARG . Yours sincerely, Signatory Name Rick Allerdings Company Name Audio Resource Group, Inc. Address 405 Main Ave W, Suite 4G, West Fargo, ND58078,US Tel 701-540-0750 Fax 701-540-0750 Email [email protected] In case of FCC, we certify that we are not subject to a denial of Federal benefits, that include FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862 because of a conviction for possession or distribution of a controlled substance.

External photo of EUT

Label and location FCC ID :2ACGIARG-TX900M

Internal photo of EUT ANT

Shenzhen Certification Technology Service Co., Ltd. 2F, Building B, East Area of Nanchang Second Industrial Zone, Gushu 2nd Road, Bao’an District, Shenzhen 518126, P.R. China FCC ID: 2ACGIARG-TX900M Page 1 of 33 TEST REPORT FCC ID:2ACGIARG-TX900M Applicant : Audio Resource Group, Inc. Address : 405 Main Ave W, Suite 4G, West Fargo, ND58078,US Equipment under Test (EUT): Name : UHF wireless transmitter Model : ARG-TX900M, ARG-TX900MINI Standards : FCC PART 15, SUBPART C: 2013 (Section 15.247) Report No. : CST-TCB140513021 Date of Test : May 18, 2014 to May 20, 2014 Date of Issue : May 20, 2014 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above Authorized Signature (Mark Zhu) General Manager The manufacture should ensure that all the products in series production are in conformity with the product sample detailed in this report. If the product in this report is used in any configuration other than that detailed in the report, the manufacturer must ensure the new system complies with all relevant standards. Any mention of Shenzhen Certification Technology Service Co., Ltd. Or test done by Shenzhen Certification Technology Service Co., Ltd. Approvals in connection with, distribution or use of the product described in this report must be approved by Shenzhen Certification Technology Service Co., Ltd. Approvals in writing. Report No.: CST-TCB140513021 FCC ID: 2ACGIARG-TX900M Page 2 of 33 TABLE OF CONTENT Description Page 1 General Information------------------------------------------------------------------------------------- 4 1.1 Description of Device (EUT)---------------------------------------------------------------------4 1.2 Description of Test Facility -----------------------------------------------------------------------4 2 EMC Equipment List ------------------------------------------------------------------------------------ 5 3 Test Procedure ------------------------------------------------------------------------------------------- 6 4 Summary of Measurement ------------------------------------------------------------------------- 7 4.1 Summary of test result ----------------------------------------------------------------------------7 4.2 Test connection -----------------------------------------------------------------------------------7 4.3 Assistant equipment used for test ----------------------------------------------------------------7 4.4 Test mode -------------------------------------------------------------------------------------------7 5 Spurious Emission ----------------------------------------------------------------------------------- 8 5.1 Radiation Emission --------------------------------------------------------------------------------8 5.1.1 Radiation Emission Limits(15.209) -------------------------------------------------------------8 5.1.2 Test Setup -------------------------------------------------------------------------------------------8 5.1.3 Test Procedure------------------------------------------------------------------------------------ 10 5.1.4 Test Equipment Setting For emission test Result -------------------------------------------- 10 5.1.5 Test Condition------------------------------------------------------------------------------------ 10 5.1.6 Test Result ---------------------------------------------------------------------------------------- 10 6 Maximum peak conducted output power ---------------------------------------------------- 13 7.1 Test limit ------------------------------------------------------------------------------------------ 13 7.2 Test Procedure------------------------------------------------------------------------------------ 13 7.3 Test Setup ----------------------------------------------------------------------------------------- 13 7.4 Test Results --------------------------------------------------------------------------------------- 13 7 Peak Power Spectral Density -------------------------------------------------------------------- 14 7.1 Test limit ------------------------------------------------------------------------------------------ 14 7.2 Method of measurement ------------------------------------------------------------------------ 14 7.3 Test Setup ----------------------------------------------------------------------------------------- 14 7.4 Test Results --------------------------------------------------------------------------------------- 14 8 6dB Bandwidth---------------------------------------------------------------------------------------- 17 8.1 Test limit ------------------------------------------------------------------------------------------ 17 8.2 Method of measurement ------------------------------------------------------------------------ 17 8.3 Test Setup ----------------------------------------------------------------------------------------- 17 8.4 Test Results --------------------------------------------------------------------------------------- 17 9 Band Edge Check------------------------------------------------------------------------------------ 20 9.1 Test limit ------------------------------------------------------------------------------------------ 20 9.2 Test Procedure------------------------------------------------------------------------------------ 20 9.3 Test Setup ----------------------------------------------------------------------------------------- 20 9.4 Test Result ---------------------------------------------------------------------------------------- 20 10 Antenna Requirement ------------------------------------------------------------------------------ 21 10.1 Standard Requirement --------------------------------------------------------------------------- 21 10.2 Antenna Connected Construction-------------------------------------------------------------- 21 10.3 Result ---------------------------------------------------------------------------------------------- 21 11 Power Line Conducted Emissions -------------------…

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Report No.: CST-TCB140513021 FCC ID: 2ACGIARG-TX900M Page 25 of 33 11 Photographs of Test Setup 11.1 Photo of Radiated Emission Below 1G Above1GHz Report No.: CST-TCB140513021 FCC ID: 2ACGIARG-TX900M Page 26 of 33 11.2 Photo of conducted Emission