FCC ID QUI-SPOT-Z
Spot Silencer
by Frederick Energy Products LLC
Grantee Code: QUI Product Code: SPOTZ
Latest application date: 2026-09-18
FCC ID Device Details
| FCC ID | QUI-SPOT-Z |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | QUI |
| Product Code | SPOTZ |
| Applicant Business | Frederick Energy Products LLC 🇺🇸 |
| Related Domains |  ishtronics.com |
| Equipment Class | Spot Silencer |
| Test Firm | Washington Laboratories, Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 0.073 MHz | Class II permissive change or modification of presently authorized equipment | 2026-09-18 |
| 0.073 MHz | Original Equipment | 2025-01-10 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| Users Manual | Users Manual | 2025-01-10 | PDF 464.4 KB |
| Internal Photos | Internal Photos | 2025-01-10 | PDF 571.7 KB |
| External Photos | External Photos | 2025-01-10 | PDF 459.7 KB |
| ID Label Info (1) | ID Label/Location Info | 2025-01-10 | PDF 109.3 KB |
| ID Label Info (2) | ID Label/Location Info | 2025-01-10 | PDF 375.4 KB |
| EMC Test Set Up Photos | Test Setup Photos | 2026-09-18 | PDF 3 MB |
| EMC Test Set Up Photos | Test Setup Photos | 2025-01-10 | PDF 2.3 MB |
| EMC Test Report | Test Report | 2026-09-18 | PDF 735.3 KB |
| EMC Test Report | Test Report | 2025-01-10 | PDF 577.7 KB |
| Covered List Attestations | Attestation Statements | 2026-09-18 | PDF 206.7 KB |
| US Agent for Service of Process Attestations | Attestation Statements | 2026-09-18 | PDF 99.1 KB |
| Covered List Attestations | Attestation Statements | 2025-01-10 | PDF 127 KB |
| US Agent for Service of Process Attestations | Attestation Statements | 2025-01-10 | PDF 82 KB |
| Agent Authorization | Cover Letter(s) | 2026-09-18 | PDF 123.3 KB |
| Cover Letter | Cover Letter(s) | 2026-09-18 | PDF 104.6 KB |
| Authorization Letter | Cover Letter(s) | 2025-01-10 | PDF 41.5 KB |
| Confidentiality Request | Cover Letter(s) | 2025-01-10 | PDF 102 KB |
| MPE Report | RF Exposure Info | 2026-09-18 | PDF 349.6 KB |
| MPE Report | RF Exposure Info | 2025-01-10 | PDF 241.6 KB |
| Block Diagram Metadata only | Block Diagram | PDF 33.2 KB | |
| Schematics Metadata only | Schematics | PDF 197.5 KB | |
| Theory of Operation Metadata only | Operational Description | PDF 155.3 KB |
Application Information
| Application ID | kCjCPt+Yxlh3i2IOUrQ4yw== |
|---|---|
| Final Action Date | 2026-09-18 |
| Application Purpose | Class II permissive change or modification of presently authorized equipment |
| Applicant FRN | 0022148134 |
| Model | SPOT-Z |
| Frequency Range | 0.073 MHz |
| Equipment Class | DCD - Part 15 Low Power Transmitter Below 1705 kHz |
| Device Description | Spot Silencer |
| Responsible Party | Ishmael Chigumira, ishmael@ishtronics.com , 470-455-5925 |
| Technical Contact | Ishmael Chigumira, Frederick Energy Products LLC, ishmael@ishtronics.com , 470-455-5925 |
| Non-Technical Contact | Ishmael Chigumira, Frederick Energy Products LLC, ishmael@ishtronics.com , 470-455-5925 |
| Test Firm | Steve Koster, Washington Laboratories, Ltd., stevek@wll.com  , 301-216-1500 |
| TCB Email | hotline@acbcert.com  |
| TCB Scope | A1: Low Power Transmitters below 1 GHz (except Spread Spectrum), Unintentional Radiators, EAS (Part 11) & Consumer ISM devices |
| Short-Term Confidentiality | No |
| Long-Term Confidentiality | No |
| 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 |
|---|---|---|
| kCjCPt+Yxlh3i2IOUrQ4yw== | 2026-09-18 | Class II permissive change or modification of presently authorized equipment |
| pJm0D2jHVvdZ5Bwb/C1m1w== | 2025-01-10 | Original Equipment |
Equipment Authorization
| Frequency | Rules |
|---|---|
| 0.073 MHz | 15C |
Grants
TCB Grant - Application pJm0D2jHVvdZ5Bwb/C1m1w==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
ACB, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 |
Date of Grant: 01/10/2025 Application Dated: 01/10/2025 |
| Frederick Energy Products LLC |
| 1769 Jeff Road |
| Huntsville, AL 35806 |
| Attention: Will Murrey |
| 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: | QUI-SPOT-Z |
| Name of Grantee: | Frederick Energy Products LLC |
| Equipment Class: | Part 15 Low Power Transmitter Below 1705 kHz |
| Notes: | Spot Silencer |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 0.073 - 0.073 |
| RF exposure compliance is addressed for 1.1310 and 2.1091 MPE limits - this device complies with KDB 447498 and is approved for mobile/fixed operation. |
EAS Grant - Application pJm0D2jHVvdZ5Bwb/C1m1w==
| COPY |
FEDERAL COMMUNICATIONS COMMISSION WASHINGTON, D.C. 20554 GRANT OF EQUIPMENT AUTHORIZATION |
COPY |
| Certification |
|
Frederick Energy Products LLC 1769 Jeff Road Huntsville, AL 35806 United States |
Date of Grant: 01/10/2025 Application Dated: 01/10/2025 |
| Attention: Will Murrey |
| 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: | QUI-SPOT-Z |
| Name of Grantee: | Frederick Energy Products LLC |
| Equipment Class: | Part 15 Low Power Transmitter Below 1705 kHz |
| Notes: | Spot Silencer |
| Modular Type: | Does not apply |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 0.073 - 0.073 |
| RF exposure compliance is addressed for 1.1310 and 2.1091 MPE limits - this device complies with KDB 447498 and is approved for mobile/fixed operation. |
| Mail To: | |||||||||||||||||||||||||||||||||||||||||||
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
ACB, Inc. 3060 Williams Drive Suite 300 #104 Falls Church, VA 22031 |
Date of Grant: 09/18/2026 Application Dated: 09/17/2026 |
| Frederick Energy Products LLC |
| 1769 Jeff Road |
| Huntsville, AL 35806 |
| Attention: Ishmael Chigumira , |
| 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: | QUI-SPOT-Z |
| Name of Grantee: | Frederick Energy Products LLC |
| Equipment Class: | Part 15 Low Power Transmitter Below 1705 kHz |
| Notes: | Spot Silencer |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 0.073 - 0.073 |
| Class II Permissive Change RF exposure compliance is addressed for 1.1310 and 2.1091 MPE limits - this device complies with KDB 447498 and is approved for mobile/fixed operation. |