Full Duplex 900 MHz Transceiver-Main — by Porta Phone Company Inc
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FCC ID B4HEPXRM
Device Details
FCC ID B4HEPXRM Grantee Code B4HEP Product Code XRM Applicant Porta Phone Company Inc Address Narragansett, RI, 02882, United States Equipment Class DSS - Part 15 Spread Spectrum Transmitter Device Description Full Duplex 900 MHz Transceiver-Main Application Purpose Original Equipment Grant Date 2026-09-21 Frequency Range 905-925 MHz; 2402-2480 MHz Operating Frequencies
Frequency Range Application Purpose Final Action Date
905–925 MHz
Original Equipment
2026-09-21
2402–2480 MHz
Original Equipment
2026-09-21
Exhibits (21)
View on FCC.gov ↗
Document Type Available File
Attestation Letter-2.911(d)(5)(i)
Attestation Statements
2026-09-21
ADOBE ACROBAT PDF 205.7 KB
Attestation Letter-2.911(d)(5)(ii)
Attestation Statements
2026-09-21
ADOBE ACROBAT PDF 208.4 KB
US Agent Attestation Letter
Attestation Statements
2026-09-21
ADOBE ACROBAT PDF 145.1 KB
Block Diagram
Block Diagram
ADOBE ACROBAT PDF 48.2 KB
FCC Agent Authorization Letter
Cover Letter(s)
2026-09-21
ADOBE ACROBAT PDF 216.7 KB
FCC Confidentiality Letter
Cover Letter(s)
2026-09-21
ADOBE ACROBAT PDF 187.3 KB
External Photos
External Photos
2026-09-21
ADOBE ACROBAT PDF 2 MB
Label and Label Location
ID Label/Location Info
2026-09-21
ADOBE ACROBAT PDF 294.8 KB
Internal Photos
Internal Photos
2026-09-21
ADOBE ACROBAT PDF 1.6 MB
Operation Description
Operational Description
ADOBE ACROBAT PDF 131.2 KB
SAR Test Report
RF Exposure Info
2026-09-21
ADOBE ACROBAT PDF 4.4 MB
RF Exposure Information
RF Exposure Info
2026-09-21
ADOBE ACROBAT PDF 150.5 KB
Schematics
Schematics
ADOBE ACROBAT PDF 628.6 KB
Test Report - BT Part 1
Test Report
2026-09-21
ADOBE ACROBAT PDF 5 MB
Test Report - BT Part 2
Test Report
2026-09-21
ADOBE ACROBAT PDF 1.4 MB
Test Report - FHSS
Test Report
2026-09-21
ADOBE ACROBAT PDF 2.4 MB
Antenna Specification BT
Test Report
2026-09-21
ADOBE ACROBAT PDF 1.1 MB
Antenna Specification FHSS
Test Report
2026-09-21
ADOBE ACROBAT PDF 1.2 MB
Test Setup Photos BT
Test Setup Photos
2026-09-21
ADOBE ACROBAT PDF 1.7 MB
Test Setup Photos FHSS
Test Setup Photos
2026-09-21
ADOBE ACROBAT PDF 465.4 KB
User Manual
Users Manual
2026-09-21
ADOBE ACROBAT PDF 232.1 KB
Application Information
Application ID Id7hezhsYuY93GXjOoMiYg== Final Action Date 2026-09-21 Application Purpose Original Equipment Model XRM Frequency Range 905-925 MHz; 2402-2480 MHz Equipment Class DSS - Part 15 Spread Spectrum Transmitter Device Description Full Duplex 900 MHz Transceiver-Main Responsible Party John Hooper, john@portaphone.com, 401-789-8700 Non-Technical Contact John Hooper, Porta Phone Company Inc, john@portaphone.com, +1 401-789-8700 Test Firm Nana Liu, Bay Area Compliance Laboratories Corp (Shenzhen), qa.sz@baclcorp.com, 86-755-33320018 TCB Email bacl.regulatory@baclcorp.com TCB Scope A4: UNII devices & low power transmitters using spread spectrum techniques Long-Term Confidentiality Yes Short-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 (1)
Application ID Date Purpose
Id7hezhsYuY93GXjOoMiYg==
2026-09-21
Original Equipment
Equipment Authorization
Frequency Output Tolerance Emission Designator Rules
905–925 MHz
0.246
15C
2402–2480 MHz
0.001
15C
Grants
TCB
GRANT OF EQUIPMENT
AUTHORIZATIONTCB
Certification
Issued Under the Authority of the
Federal Communications Commission
By:
Bay Area Compliance Laboratories Corp.
1274 Anvilwood Avenue
Sunnyvale, CA 94089
Date of Grant: 09/21/2026
Porta Phone Company Inc
145 Dean Knauss Drive
Narragansett, RI 02882
Attention: John Hooper , Jr., Vice President
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:
B4HEPXRM
Name of Grantee:
Porta Phone Company Inc
Equipment Class:
Part 15 Spread Spectrum Transmitter
Notes:
Full Duplex 900 MHz Transceiver-Main
Grant Notes
FCC Rule Parts
Frequency
Range (MHZ)
Output
Watts
Frequency
Tolerance
Emission
Designator
15C
905.0
-
925.0
0.246
15C
2402.0
-
2480.0
0.001
Output power listed is conducted. The antenna(s) used for this transmitter must not be co-located with any other transmitters, except in accordance with FCC multi-transmitter product procedures. End-users must be informed of the operating requirements for satisfying RF exposure compliance. The highest reported SAR for body and simultaneous transmission exposure conditions are 0.96 W/kg, and 1.01 W/kg, respectively.
Regulatory Testing from Start to Certificate
