FCC ID 2ASV7-EADV4
Dynamic Display
by American Time & Signal Co.
Grantee Code: 2ASV7 Product Code: EADV4
Latest application date: 2026-05-26
FCC ID Device Details
| FCC ID | 2ASV7-EADV4 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2ASV7 |
| Product Code | EADV4 |
| Applicant Business | American Time & Signal Co. 🇺🇸 |
| Related Domains |  atsclock.com |
| Equipment Class | Dynamic Display |
| Test Firm | SHENZHEN CTA TESTING TECHNOLOGY CO., LTD. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Change in identification of presently authorized equipment. Original FCC ID: 2ASV7-EADV3 Grant Date: 06/05/2023 | 2026-05-26 |
| 2412-2462 MHz | Change in identification of presently authorized equipment. Original FCC ID: 2ASV7-EADV3 Grant Date: 06/05/2023 | 2026-05-26 |
| 5745-5825 MHz | Change in identification of presently authorized equipment. Original FCC ID: 2ASV7-EADV3 Grant Date: 06/05/2023 | 2026-05-26 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| Internal Photos | Internal Photos | 2026-05-26 | PDF 3.3 MB |
| External Photos | External Photos | 2026-05-26 | PDF 1.5 MB |
| ID Label/Location Info | ID Label/Location Info | 2026-05-26 | PDF 171 KB |
| Attestation Statements | Attestation Statements | 2026-05-26 | PDF 61.7 KB |
| US agent | Attestation Statements | 2026-05-26 | PDF 482.4 KB |
| Agent Authorization | Cover Letter(s) | 2026-05-26 | PDF 87.6 KB |
| Change in ID Authorization Letter | Cover Letter(s) | 2026-05-26 | PDF 408.8 KB |
| Change in ID Request | Cover Letter(s) | 2026-05-26 | PDF 409.5 KB |
| Declaration Letter | Cover Letter(s) | 2026-05-26 | PDF 223.1 KB |
| Software Security Requirements for UNII devices Metadata only | SDR Software/Security Info. | PDF 91.1 KB |
Application Information
| Application ID | efTx8XCg0LpeslHYGQ7hFw== |
|---|---|
| Final Action Date | 2026-05-26 |
| Application Purpose | Change in identification of presently authorized equipment. Original FCC ID: 2ASV7-EADV3 Grant Date: 06/05/2023 |
| Applicant FRN | 0028361418 |
| Model | EADV4 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Dynamic Display |
| Responsible Party | Timothy Leung, tleung@atsclock.com , 320 275 2101 |
| Non-Technical Contact | Timothy Leung Leung, American Time & Signal Co., tleung@atsclock.com , 320 275 2101 |
| Test Firm | Eric Wang, SHENZHEN CTA TESTING TECHNOLOGY CO., LTD., wangxulai@cta-test.cn  , 86-755-2322-5875 |
| TCB Email | tcb@metlabs.com  |
| TCB Scope | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | No |
| Long-Term Confidentiality | No |
| Modular Equipment | Does not apply |
| Composite Device | Yes |
| 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 |
|---|---|---|
| efTx8XCg0LpeslHYGQ7hFw== | 2026-05-26 | Change in identification of presently authorized equipment. Original FCC ID: 2ASV7-EADV3 Grant Date: 06/05/2023 |
| a6Is+dquw4dNmMB4fhFfpQ== | 2026-05-26 | Change in identification of presently authorized equipment. Original FCC ID: 2ASV7-EADV3 Grant Date: 06/05/2023 |
| BX/154CW8wQmzKTUB5+7nQ== | 2026-05-26 | Change in identification of presently authorized equipment. Original FCC ID: 2ASV7-EADV3 Grant Date: 06/05/2023 |
Equipment Authorization
Grants
TCB Grant - Application efTx8XCg0LpeslHYGQ7hFw==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230-3432 |
Date of Grant: 05/26/2026 Application Dated: 05/26/2026 |
| American Time & Signal Co. |
| 140 3rd Street South |
| Dassel, MN 55325 |
| Attention: Timothy Leung , Vice President, Engineering & Operations |
| 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: | 2ASV7-EADV4 |
| Name of Grantee: | American Time & Signal Co. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Dynamic Display |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.0012 |
| Change in ID. Output Power listed is conducted. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application BX/154CW8wQmzKTUB5+7nQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230-3432 |
Date of Grant: 05/26/2026 Application Dated: 05/26/2026 |
| American Time & Signal Co. |
| 140 3rd Street South |
| Dassel, MN 55325 |
| Attention: Timothy Leung , Vice President, Engineering & Operations |
| 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: | 2ASV7-EADV4 |
| Name of Grantee: | American Time & Signal Co. |
| Equipment Class: | Unlicensed National Information Infrastructure TX |
| Notes: | Dynamic Display |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15E | 5180.0 - 5240.0 | 0.0116 | ||
| CC | 15E | 5745.0 - 5825.0 | 0.0132 |
| Change in ID. Output Power listed is conducted. This device has 20, 40, and 80 MHz bandwidth modes. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application a6Is+dquw4dNmMB4fhFfpQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230-3432 |
Date of Grant: 05/26/2026 Application Dated: 05/26/2026 |
| American Time & Signal Co. |
| 140 3rd Street South |
| Dassel, MN 55325 |
| Attention: Timothy Leung , Vice President, Engineering & Operations |
| 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: | 2ASV7-EADV4 |
| Name of Grantee: | American Time & Signal Co. |
| Equipment Class: | Digital Transmission System |
| Notes: | Dynamic Display |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.0028 | ||
| CC | 15C | 2412.0 - 2462.0 | 0.0401 |
| Change in ID. Output Power listed is conducted. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |