Adding an RF amplifier: assess the complete transmission-system configuration
The acquired § 15.204 distinguishes a general external-amplifier restriction from specified system and marketing provisions. Review the whole transmitter/amplifier/antenna arrangement; a component specification or amplifier purchase alone does not establish a permitted configuration.
Evidence retrieved 2026-10-06. Source versions and topic-specific limits are listed below.
Sourced criteria · US
What changes the service scope?
Decision or task
What the source describes
What to prepare
title 47 / section § 15.204 / XML P[1]
(a) Except as otherwise described in paragraphs (b) and (d) of this section, no person shall use, manufacture, sell or lease, offer for sale or lease (including advertising for sale or lease), or import, ship, or distribute for the purpose of selling or leasing, any external radio frequency power amplifier or amplifier kit intended for use with a part 15 intentional radiator. [1]
Compare this exact dated paragraph, its stated conditions and the linked provisions with the supplied configuration evidence.
title 47 / section § 15.204 / XML P[2]
(b) A transmission system consisting of an intentional radiator, an external radio frequency power amplifier, and an antenna, may be authorized, marketed and used under this part. Except as described otherwise in this section, when a transmission system is authorized as a system, it must always be marketed as a complete system and must always be used in the configuration in which it was authorized. [2]
Compare this exact dated paragraph, its stated conditions and the linked provisions with the supplied configuration evidence.
title 47 / section § 15.204 / XML P[8]
(d) Except as described in this paragraph, an external radio frequency power amplifier or amplifier kit shall be marketed only with the system configuration with which it was approved and not as a separate product. [3]
Compare this exact dated paragraph, its stated conditions and the linked provisions with the supplied configuration evidence.
This is a focused preparation guide, not the complete rule set or a product-specific legal determination. Current related rules, amendments/effective dates, grant conditions and deciding buyer facts remain unresolved. No scope, exemption, certification, emission limit or test-panel result is automatically assigned.
Prepare the RF configuration evidence
Use this checklist to gather your business or product details before speaking with a specialist. The items below explain what to record and suggest useful supporting documents. You can add your own answers in the editable project brief.
Map the complete system
Record transmitter, amplifier, antenna and control/interface relationships instead of submitting only the amplifier datasheet.
Useful evidence: System diagram, bill of materials, grants and configuration conditions.
Check how it is supplied
Document whether the system is sold together or components are offered separately; ask the specialist which exact rule provisions apply.
Useful evidence: Sales/packaging model, intended users and installation instructions.
Scope the proposed change
Compare power, gain and operating bands with the controlled authorized arrangement and agree a supported assessment path.
Useful evidence: Original/proposed configuration and a reviewed evidence/test plan.
Work packages and dependencies
Conditional: Adding an RF amplifier: assess the complete transmission-system configuration — Review the documented configurations and current complete provisions; agree the justified evidence/testing scope and its exclusions.
Questions for providers
Which exact configuration facts and current provisions justify the proposed scope for Adding an RF amplifier: assess the complete transmission-system configuration?
Which supplied-source and grant conditions remain unresolved, and how will you investigate them?
Which operating modes/configurations, evidence deliverables and exclusions are included in the quotation?
Sources and data dates
Read the official document in context. The audit details identify the precise locators and preserved versions used for this page.
