FCC ID WR4-SRS2
Sokkia SR-S2 Handheld Mapping System
by Topcon Positioning Systems, Inc.
Grantee Code: WR4 Product Code: SRS2
Latest application date: 2026-04-23
FCC ID Device Details
| FCC ID | WR4-SRS2 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | WR4 |
| Product Code | SRS2 |
| Applicant Business | Topcon Positioning Systems, Inc. 🇺🇸 |
| Related Domains |  topcon.com |
| Equipment Class | Sokkia SR-S2 Handheld Mapping System |
| Test Firm | Guangdong Zhonghan Testing Technology Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 5745-5825 MHz | Change in identification of presently authorized equipment. Original FCC ID: WR4-CRS2 Grant Date: 12/19/2025 | 2026-04-23 |
| 2412-2462 MHz | Change in identification of presently authorized equipment. Original FCC ID: WR4-CRS2 Grant Date: 12/19/2025 | 2026-04-23 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| External Photos | External Photos | 2026-04-23 | PDF 2.2 MB |
| Label | ID Label/Location Info | 2026-04-23 | PDF 213.5 KB |
| Attestation Statements-Kaspersky | Attestation Statements | 2026-04-23 | PDF 140 KB |
| Attestation Statements-Not Covered | Attestation Statements | 2026-04-23 | PDF 86.2 KB |
| US Agent | Attestation Statements | 2026-04-23 | PDF 70.9 KB |
| FCC Authorization from Original Grantee for ID change | Cover Letter(s) | 2026-04-23 | PDF 64.6 KB |
| FCC Change in ID Request | Cover Letter(s) | 2026-04-23 | PDF 710.6 KB |
| POA | Cover Letter(s) | 2026-04-23 | PDF 49.7 KB |
Application Information
| Application ID | QZkLc+A4Ghu7loVDnfGppw== |
|---|---|
| Final Action Date | 2026-04-23 |
| Application Purpose | Change in identification of presently authorized equipment. Original FCC ID: WR4-CRS2 Grant Date: 12/19/2025 |
| Applicant FRN | 0008852949 |
| Model | SRS2 |
| Frequency Range | 5745-5825 MHz |
| Equipment Class | NII - Unlicensed National Information Infrastructure TX |
| Device Description | Sokkia SR-S2 Handheld Mapping System |
| Responsible Party | Ferdinand Riodique, friodique@topcon.com , 925-245-8300 |
| Non-Technical Contact | Ferdinand Riodique, Topcon Positioning Systems, Inc., friodique@topcon.com , 925-245-8300 |
| Test Firm | Alex Wang, Guangdong Zhonghan Testing Technology Co., Ltd., alex_wang_zht@163.com  , 86-18307618653 |
| TCB Email | joe_chew@derycom-us.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 |
|---|---|---|
| QZkLc+A4Ghu7loVDnfGppw== | 2026-04-23 | Change in identification of presently authorized equipment. Original FCC ID: WR4-CRS2 Grant Date: 12/19/2025 |
| Ch637nN+MOBj1xRlavjvfA== | 2026-04-23 | Change in identification of presently authorized equipment. Original FCC ID: WR4-CRS2 Grant Date: 12/19/2025 |
Equipment Authorization
Grants
TCB Grant - Application QZkLc+A4Ghu7loVDnfGppw==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
DERYCOM CERTIFICATION SERVICES, INC. 1100 Falcon Avenue Glencoe, MN 55336 |
Date of Grant: 04/23/2026 Application Dated: 04/23/2026 |
| Topcon Positioning Systems, Inc. |
| 7400 National Drive |
| Livermore, CA 94551 |
| Attention: Ferdinand Riodique , |
| 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: | WR4-SRS2 |
| Name of Grantee: | Topcon Positioning Systems, Inc. |
| Equipment Class: | Unlicensed National Information Infrastructure TX |
| Notes: | Sokkia SR-S2 Handheld Mapping System |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15E | 5180.0 - 5240.0 | 0.0056 | ||
| CC ND | 15E | 5260.0 - 5320.0 | 0.0054 | ||
| CC ND | 15E | 5500.0 - 5700.0 | 0.0059 | ||
| CC | 15E | 5745.0 - 5825.0 | 0.005 |
| Output power listed is conducted power. This device contains 20, 40 and 80 MHz signal bandwidth. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
| ND: | This UNII device complies with the Transmit Power Control (TPC) and Dynamic Frequency Selection (DFS) requirements in Section 15.407(h). |
TCB Grant - Application Ch637nN+MOBj1xRlavjvfA==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
DERYCOM CERTIFICATION SERVICES, INC. 1100 Falcon Avenue Glencoe, MN 55336 |
Date of Grant: 04/23/2026 Application Dated: 04/23/2026 |
| Topcon Positioning Systems, Inc. |
| 7400 National Drive |
| Livermore, CA 94551 |
| Attention: Ferdinand Riodique , |
| 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: | WR4-SRS2 |
| Name of Grantee: | Topcon Positioning Systems, Inc. |
| Equipment Class: | Digital Transmission System |
| Notes: | Sokkia SR-S2 Handheld Mapping System |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2412.0 - 2462.0 | 0.0048 |
| Output power listed is conducted power. This device contains 20 and 40 MHz signal bandwidth. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |