Updated: Dec 9, 2025 | Source: 2023-2027 Question Pool | Topic: G1C
G1C07G1C

What must be done before using a new digital protocol on the air?

Deep Dive: G1C07

The correct answer is C: Publicly document the technical characteristics of the protocol. Before using a new digital protocol on the air, you must publicly document the technical characteristics of the protocol. This allows others to understand and potentially decode your transmissions, maintaining the non-secret nature of amateur radio. For amateur radio operators, this requirement ensures transparency and prevents encrypted or secret communications. Understanding this helps when developing or using new digital modes.

Why Other Answers Are Wrong

Option A: Incorrect. Type-certifying equipment isn't required for new protocols - that's for commercial equipment. Amateur equipment doesn't need type certification. Option B: Incorrect. Experimental licenses aren't required for new protocols - amateurs can develop and use new modes as long as they're publicly documented. Option D: Incorrect. Rule-making proposals aren't required - you just need to publicly document the protocol. No formal FCC proposal process is needed.

Exam Tip

New digital protocol = publicly document technical characteristics. Think 'N'ew 'P'rotocol = 'P'ublicly 'P'ublish. Must document how the protocol works so others can understand it. Not about type certification, experimental licenses, or rule-making proposals.

Memory Aid

New digital protocol = publicly document. Think 'N'ew 'P'rotocol = 'P'ublicly 'P'ublish. Must document technical characteristics so others can understand the protocol. Ensures transparency and prevents secret communications.

Real-World Example

You develop a new digital mode for weak-signal work. Before using it on the air, you publish the technical details - modulation method, data format, encoding scheme, etc. - on your website or in a technical journal. This public documentation allows others to understand and decode your transmissions, maintaining amateur radio's open nature.

Source & Coverage

Question Pool: 2023-2027 Question Pool

Subelement: G1C

Reference: 2023-2027 Question Pool · G1 - Commission's Rules

Key Concepts

Digital protocols Public documentation Technical characteristics FCC rules

Verified Content

Question from the official FCC General Class pool. Explanation reviewed by licensed amateur radio operators and mapped to the G1C topic.