FCC ID A3LMT6433-77A
MMU(MT6433)
by Samsung Electronics Co Ltd
Grantee Code: A3L Product Code: MT643377A
Latest application date: 2026-07-27
FCC ID Device Details
| FCC ID | A3LMT6433-77A |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | A3L |
| Product Code | MT643377A |
| Applicant Business | Samsung Electronics Co Ltd 🇺🇸 |
| Related Domains |  samsung.com |
| Equipment Class | MMU(MT6433) |
| Test Firm | HCT Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 3700-3980 MHz | Class II permissive change or modification of presently authorized equipment | 2026-07-27 |
| 3700-3980 MHz | Class II permissive change or modification of presently authorized equipment | 2026-05-15 |
| 3700-3980 MHz | Original Equipment | 2026-04-28 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| A3LMT6433-77A_Label & Location | ID Label/Location Info | 2026-04-28 | PDF 263.9 KB |
| MT6433-77A FCC_Test Report_R1 | Test Report | 2026-07-27 | PDF 1.9 MB |
| MT6433-77A FCC_Test Report_R1 Metadata only | Test Report | 2026-05-15 | PDF 3.6 MB |
| MT6433-77A FCC_Test Report_R2 | Test Report | 2026-05-15 | PDF 3.6 MB |
| MT6433-77A FCC_Test Report | Test Report | 2026-04-28 | PDF 4.6 MB |
| A3LMT6433-77A_FCC Attestation letter (Covered List) | Attestation Statements | 2026-07-27 | PDF 92.4 KB |
| A3LMT6433-77A_US_Agent Letter | Attestation Statements | 2026-07-27 | PDF 285.8 KB |
| A3LMT6433-77A_FCC Attestation letter (Covered List) | Attestation Statements | 2026-05-15 | PDF 114.5 KB |
| A3LMT6433-77A_US_Agent Letter | Attestation Statements | 2026-05-15 | PDF 350 KB |
| A3LMT6433-77A_FCC Attestation letter (Covered List) | Attestation Statements | 2026-04-28 | PDF 92.1 KB |
| A3LMT6433-77A_US_Agent Letter | Attestation Statements | 2026-04-28 | PDF 296.7 KB |
| A3LMT6433-77A_Authorization Letter_Jongin Kim | Cover Letter(s) | 2026-07-27 | PDF 488.4 KB |
| A3LMT6433-77A_Authorization letter | Cover Letter(s) | 2026-07-27 | PDF 278.4 KB |
| A3LMT6433-77A_C2PC Letter | Cover Letter(s) | 2026-07-27 | PDF 209.5 KB |
| A3LMT6433-77A_Product_Equality_Declaration | Cover Letter(s) | 2026-07-27 | PDF 164.1 KB |
| A3LMT6433-77A_Request for Confidentiality | Cover Letter(s) | 2026-07-27 | PDF 369.2 KB |
| A3LMT6433-77A_Authorization Letter_Jongin Kim | Cover Letter(s) | 2026-05-15 | PDF 440.7 KB |
| A3LMT6433-77A_Authorization letter | Cover Letter(s) | 2026-05-15 | PDF 317 KB |
| A3LMT6433-77A_C2PC Letter | Cover Letter(s) | 2026-05-15 | PDF 208.5 KB |
| A3LMT6433-77A_Request for Confidentiality | Cover Letter(s) | 2026-05-15 | PDF 324.4 KB |
| Copy of Original_A3LMT6433-77A_Long-term Confidentiality Request letter Metadata only | Cover Letter(s) | 2026-05-15 | PDF 253.5 KB |
| A3LMT6433-77A_Authorization Letter_Jongin Kim | Cover Letter(s) | 2026-04-28 | PDF 392.9 KB |
| A3LMT6433-77A_Authorization letter | Cover Letter(s) | 2026-04-28 | PDF 276.6 KB |
| A3LMT6433-77A_Long-term Confidentiality Request letter | Cover Letter(s) | 2026-04-28 | PDF 253.5 KB |
| A3LMT6433-77A_Request for Confidentiality | Cover Letter(s) | 2026-04-28 | PDF 391.4 KB |
| MT6433-77A FCC RF EXPOSURE Report | RF Exposure Info | 2026-07-27 | PDF 316.1 KB |
| MT6433-77A FCC RF EXPOSURE Report_R1(C2PC) | RF Exposure Info | 2026-05-15 | PDF 288.5 KB |
| MT6433-77A FCC RF EXPOSURE Report | RF Exposure Info | 2026-04-28 | PDF 279.5 KB |
| MT6433-77A FCC_External Photos Metadata only | External Photos | 2026-10-25 | PDF 281.8 KB |
| MT6433-77A FCC_Annex A_Test Setup Photo Metadata only | Test Setup Photos | 2027-01-23 | PDF 2.5 MB |
| MT6433-77A FCC_Annex A_EUT and Test Setup Photo Metadata only | Test Setup Photos | 2026-11-11 | PDF 3.6 MB |
| MT6433-77A FCC_Annex A_EUT and Test Setup Photo Metadata only | Test Setup Photos | 2026-10-25 | PDF 3.7 MB |
| A3LMT6433-77A_User manual Metadata only | Users Manual | PDF 4.6 MB | |
| A3LMT6433-77A_User manual_R1 Metadata only | Users Manual | PDF 4.6 MB | |
| A3LMT6433-77A_Chassis photos Resized Metadata only | Internal Photos | PDF 679.7 KB | |
| MT6433-77A FCC_Internal Photos Metadata only | Internal Photos | PDF 819.7 KB | |
| A3LMT6433-77A_Block diagram Metadata only | Block Diagram | PDF 621.8 KB | |
| A3LMT6433-77A_Circuit diagram_1 Metadata only | Schematics | PDF 5.3 MB | |
| A3LMT6433-77A_Circuit diagram_2 Metadata only | Schematics | PDF 3.5 MB | |
| A3LMT6433-77A_Circuit diagram_3 Metadata only | Schematics | PDF 3 MB | |
| A3LMT6433-77A_Antenna specification Metadata only | Operational Description | PDF 325.1 KB | |
| A3LMT6433-77A_Operational Description Metadata only | Operational Description | PDF 468.5 KB | |
| A3LMT6433-77A_Operational Description Metadata only | Operational Description | PDF 467.6 KB | |
| A3LMT6433-77A_Operational Description Metadata only | Operational Description | PDF 463.6 KB | |
| T-Mobile_SOW_Product Trial_CONFIDENTIAL_FINAL_7-22-25-Samsung_T-Mobile Signed-08 Metadata only | Operational Description | PDF 636.8 KB | |
| Verizon New Jersey, Inc._NDA_Executed_6-20-24 Metadata only | Operational Description | PDF 2.1 MB | |
| MT6433-77A FCC RF EXPOSURE Report_R1(Original) | RF Exposure Info | 2026-04-28 | PDF 283.2 KB |
| A3LMT6433-77A_Part list Metadata only | Parts List/Tune Up Info | PDF 3.3 MB | |
| A3LMT6433-77A_Tune up procedure Metadata only | Parts List/Tune Up Info | PDF 1.2 MB |
Application Information
| Application ID | hknpC4l9yc5NyVI5CFzM1Q== |
|---|---|
| Final Action Date | 2026-07-27 |
| Application Purpose | Class II permissive change or modification of presently authorized equipment |
| Applicant FRN | 0027908797 |
| Model | MT6433-77A |
| Frequency Range | 3700-3980 MHz |
| Equipment Class | TNB - Licensed Non-Broadcast Station Transmitter |
| Device Description | MMU(MT6433) |
| Responsible Party | Jenni Chun, j1.chun@samsung.com , 973-808-6375 |
| Non-Technical Contact | Jenni Chun, Samsung Electronics America, Inc., j1.chun@samsung.com , 8007267864 |
| Test Firm | Lee MyoungLim, HCT Co., Ltd., lmlim@hct.co.kr  , 82-31-645-6918 |
| TCB Email | charvey@ieee.org  , jennifer.s@hctamerica.com  |
| TCB Scope | B1: Commercial mobile radio services equipment in the following 47 CFR Parts 20, 22 (cellular), 24,25 (below 3 GHz) & 27 |
| Short-Term Confidentiality | Yes |
| Long-Term Confidentiality | Yes |
| Modular Equipment | Does not apply |
| Composite Device | No |
| Cognitive Radio | No |
| Authorization Waiver | No |
| Authorization Waiver Approved | No |
| Section 5301 Certification | Yes |
| Related OET Knowledge DataBase Inquiry | No |
Applications
| Application ID | Date | Purpose |
|---|---|---|
| hknpC4l9yc5NyVI5CFzM1Q== | 2026-07-27 | Class II permissive change or modification of presently authorized equipment |
| QwARDFpoKwRpXxWAvDfxIQ== | 2026-05-15 | Class II permissive change or modification of presently authorized equipment |
| rn+9IIOdJG+9D4elnSh6kA== | 2026-04-28 | Original Equipment |
Equipment Authorization
| Frequency | Output | Tolerance | Emission | Rules | Grant Notes |
|---|---|---|---|---|---|
| 3700-3980 MHz | 190.51 | 0.05 PM | 37M9G7D | 27 | MO |
| 3700-3980 MHz | 199.14 | 0.05 PM | 37M9W7D | 27 | MO |
| 3700-3980 MHz | 282.67 | 0.05 PM | 57M9G7D | 27 | MO |
| 3700-3980 MHz | 295.01 | 0.05 PM | 57M9W7D | 27 | MO |
| 3700-3980 MHz | 367.42 | 0.05 PM | 77M7G7D | 27 | MO |
| 3700-3980 MHz | 375.04 | 0.05 PM | 77M7W7D | 27 | MO |
| 3700-3980 MHz | 407.72 | 0.05 PM | 97M6G7D | 27 | MO |
| 3700-3980 MHz | 426.36 | 0.05 PM | 97M6W7D | 27 | MO |
| 3700-3980 MHz | 483.7 | 0.05 PM | 137MG7D | 27 | MO |
| 3700-3980 MHz | 530.13 | 0.05 PM | 137MW7D | 27 | MO |
| 3700-3980 MHz | 501.05 | 0.05 PM | 197MG7D | 27 | MO |
| 3700-3980 MHz | 532.94 | 0.05 PM | 197MW7D | 27 | MO |
| 3700-3980 MHz | 110.03 | 0.05 PM | 18M4G7D | 27 | MO |
| 3700-3980 MHz | 114.34 | 0.05 PM | 18M4W7D | 27 | MO |
Grants
TCB Grant - Application rn+9IIOdJG+9D4elnSh6kA==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
HCT America, Inc. 840 Yosemite Way Milpitas, CA 95035 |
Date of Grant: 04/28/2026 Application Dated: 04/28/2026 |
| Samsung Electronics Co Ltd |
| 19 Chapin Rd., Building D |
| Pine Brook, NJ 07058 |
| Attention: Jenni Chun , General Manager |
| NOT TRANSFERABLE |
| EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
| FCC IDENTIFIER: | A3LMT6433-77A |
| Name of Grantee: | Samsung Electronics Co Ltd |
| Equipment Class: | Licensed Non-Broadcast Station Transmitter |
| Notes: | MMU(MT6433) |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| MO | 27 | 3700.0 - 3980.0 | 190.51 | 0.05 PM | 37M9G7D |
| MO | 27 | 3700.0 - 3980.0 | 199.14 | 0.05 PM | 37M9W7D |
| MO | 27 | 3700.0 - 3980.0 | 282.67 | 0.05 PM | 57M9G7D |
| MO | 27 | 3700.0 - 3980.0 | 295.01 | 0.05 PM | 57M9W7D |
| MO | 27 | 3700.0 - 3980.0 | 367.42 | 0.05 PM | 77M7G7D |
| MO | 27 | 3700.0 - 3980.0 | 375.04 | 0.05 PM | 77M7W7D |
| MO | 27 | 3700.0 - 3980.0 | 407.72 | 0.05 PM | 97M6G7D |
| MO | 27 | 3700.0 - 3980.0 | 426.36 | 0.05 PM | 97M6W7D |
| Power listed is maximum conducted output power. This device operates as an 64Tx/64Rx MIMO with 7.5W/path and up to 40/60/80/100 MHz Channel BW 5G NR. Professional installation is required. The antenna(s) used for this transmitter must be fixed-mounted on outdoor permanent structures. RF exposure compliance is addressed at the time of licensing, as required by the responsible FCC bureau(s), including antenna co-location requirement of 1.1307(b)(3). End-users and installers must be provided with installation instructions and transmitter operating conditions for satisfying RF exposure compliance. This device was tested for QPSK, 16QAM, 64QAM, and 256QAM modulation type. |
| MO: | This Multiple Input Multiple Output (MIMO) device was evaluated for multiple transmitted signals as indicated in the filing. |
TCB Grant - Application QwARDFpoKwRpXxWAvDfxIQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
HCT America, Inc. 840 Yosemite Way Milpitas, CA 95035 |
Date of Grant: 05/15/2026 Application Dated: 05/14/2026 |
| Samsung Electronics Co Ltd |
| 19 Chapin Rd., Building D |
| Pine Brook, NJ 07058 |
| Attention: Jenni Chun , General Manager |
| NOT TRANSFERABLE |
| EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
| FCC IDENTIFIER: | A3LMT6433-77A |
| Name of Grantee: | Samsung Electronics Co Ltd |
| Equipment Class: | Licensed Non-Broadcast Station Transmitter |
| Notes: | MMU(MT6433) |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| MO | 27 | 3700.0 - 3980.0 | 190.51 | 0.05 PM | 37M9G7D |
| MO | 27 | 3700.0 - 3980.0 | 199.14 | 0.05 PM | 37M9W7D |
| MO | 27 | 3700.0 - 3980.0 | 282.67 | 0.05 PM | 57M9G7D |
| MO | 27 | 3700.0 - 3980.0 | 295.01 | 0.05 PM | 57M9W7D |
| MO | 27 | 3700.0 - 3980.0 | 367.42 | 0.05 PM | 77M7G7D |
| MO | 27 | 3700.0 - 3980.0 | 375.04 | 0.05 PM | 77M7W7D |
| MO | 27 | 3700.0 - 3980.0 | 407.72 | 0.05 PM | 97M6G7D |
| MO | 27 | 3700.0 - 3980.0 | 426.36 | 0.05 PM | 97M6W7D |
| MO | 27 | 3700.0 - 3980.0 | 483.7 | 0.05 PM | 137MG7D |
| MO | 27 | 3700.0 - 3980.0 | 530.13 | 0.05 PM | 137MW7D |
| MO | 27 | 3700.0 - 3980.0 | 501.05 | 0.05 PM | 197MG7D |
| MO | 27 | 3700.0 - 3980.0 | 532.94 | 0.05 PM | 197MW7D |
| C2PC to add new multi-carrier modes via SW. Power listed is maximum conducted output power. This device operates as an 64Tx/64Rx MIMO with 7.5W/path and up to 40/60/80/100 MHz Channel BW 5G NR. Professional installation is required. The antenna(s) used for this transmitter must be fixed-mounted on outdoor permanent structures. RF exposure compliance is addressed at the time of licensing, as required by the responsible FCC bureau(s), including antenna co-location requirement of 1.1307(b)(3). End-users and installers must be provided with installation instructions and transmitter operating conditions for satisfying RF exposure compliance. This device was tested for QPSK, 16QAM, 64QAM, and 256QAM modulation type. |
| MO: | This Multiple Input Multiple Output (MIMO) device was evaluated for multiple transmitted signals as indicated in the filing. |
TCB Grant - Application hknpC4l9yc5NyVI5CFzM1Q==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
HCT America, Inc. 840 Yosemite Way Milpitas, CA 95035 |
Date of Grant: 07/27/2026 Application Dated: 07/27/2026 |
| Samsung Electronics Co Ltd |
| 19 Chapin Rd., Building D |
| Pine Brook, NJ 07058 |
| Attention: Jenni Chun , General Manager |
| NOT TRANSFERABLE |
| EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
| FCC IDENTIFIER: | A3LMT6433-77A |
| Name of Grantee: | Samsung Electronics Co Ltd |
| Equipment Class: | Licensed Non-Broadcast Station Transmitter |
| Notes: | MMU(MT6433) |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| MO | 27 | 3700.0 - 3980.0 | 190.51 | 0.05 PM | 37M9G7D |
| MO | 27 | 3700.0 - 3980.0 | 199.14 | 0.05 PM | 37M9W7D |
| MO | 27 | 3700.0 - 3980.0 | 282.67 | 0.05 PM | 57M9G7D |
| MO | 27 | 3700.0 - 3980.0 | 295.01 | 0.05 PM | 57M9W7D |
| MO | 27 | 3700.0 - 3980.0 | 367.42 | 0.05 PM | 77M7G7D |
| MO | 27 | 3700.0 - 3980.0 | 375.04 | 0.05 PM | 77M7W7D |
| MO | 27 | 3700.0 - 3980.0 | 407.72 | 0.05 PM | 97M6G7D |
| MO | 27 | 3700.0 - 3980.0 | 426.36 | 0.05 PM | 97M6W7D |
| MO | 27 | 3700.0 - 3980.0 | 483.7 | 0.05 PM | 137MG7D |
| MO | 27 | 3700.0 - 3980.0 | 530.13 | 0.05 PM | 137MW7D |
| MO | 27 | 3700.0 - 3980.0 | 501.05 | 0.05 PM | 197MG7D |
| MO | 27 | 3700.0 - 3980.0 | 532.94 | 0.05 PM | 197MW7D |
| MO | 27 | 3700.0 - 3980.0 | 110.03 | 0.05 PM | 18M4G7D |
| MO | 27 | 3700.0 - 3980.0 | 114.34 | 0.05 PM | 18M4W7D |
| C2PC to add new carrier mode via SW and additional model. Power listed is maximum conducted output power. This device operates as an 64Tx/64Rx MIMO with 7.5W/path and up to 40/60/80/100 MHz Channel BW 5G NR. Professional installation is required. The antenna(s) used for this transmitter must be fixed-mounted on outdoor permanent structures. RF exposure compliance is addressed at the time of licensing, as required by the responsible FCC bureau(s), including antenna co-location requirement of 1.1307(b)(3). End-users and installers must be provided with installation instructions and transmitter operating conditions for satisfying RF exposure compliance. This device was tested for QPSK, 16QAM, 64QAM, and 256QAM modulation type. |
| MO: | This Multiple Input Multiple Output (MIMO) device was evaluated for multiple transmitted signals as indicated in the filing. |