G1C

Power limits and 60 m rules

The 1500 W and 200 W power limits and how they are measured, 60 m bandwidth and records, and new digital protocols.

8 pool questions1 on the exam

Syllabus: Transmitter power regulations; data emission standards; 60-meter operation requirements

1500 W PEP, except 200 W on 30 m

Bars to scale. PEP output from the transmitter.

30 m (10.140 MHz) is the exception at 200 W PEP. On 160, 12 and 10 m the limit is 1500 W PEP.

The rule counts transmitter output, not what reaches the antenna.

RememberLimit is PEP output from the transmitter.

60 m: 2.8 kHz wide, and record your antenna gain

Occupied bandwidth of a USB voice signal on the 60 m band, kHz.

On 60 m, a USB signal may be no more than 2.8 kHz wide. No contact log or equipment record is required, but a non-dipole antenna's gain must be recorded.

New digital protocol: publish how it works

Digital emission rule.

The technical characteristics must be publicly documented so others can decode it. No FCC certificate or special license is needed.

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Go deeper

Compendium articles on the ideas in this lesson, beyond what the exam asks.

Part 97 in plain words

Check what stuck

Practise the 8 pool questions for this group. Answers are shuffled, and every one comes with a one-line "why".

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