G1A: Frequency Privileges and Allocations – Ham Radio General License Study Guide

G1A covers the specific frequency rights and restrictions that apply to General class control operators on the HF and MF amateur bands. General class is a significant upgrade from Technician — it opens up the majority of HF spectrum — but certain segments remain reserved for Amateur Extra licensees, and some bands carry additional operating restrictions.

The exam draws from topics including which four HF bands have portions where General class operators cannot transmit, which band prohibits phone and image transmission entirely, the specific frequency range where General class operation is prohibited on 40 meters, what primary and secondary allocation status means in practice, General class CW privileges on 10 meters, the portion of 10 meters available for repeaters, which frequency segment within the General portion of 15 meters is a valid General class frequency, and how General class voice privileges are structured when they don't span the full voice segment.

Amateur Extra Reserved Segments

The General class license opens access to most HF bands, but four bands have segments at the lower end of voice and data allocations that are reserved exclusively for Amateur Extra class licensees: 80 meters, 40 meters, 20 meters, and 15 meters. These Extra-only segments exist to reward the highest license class with access to the most desirable portions of those bands. On all other HF and MF bands — 160 meters, 60 meters, 30 meters, 17 meters, 12 meters, and 10 meters — there are no Extra-only segments, and General class operators have full access to all amateur frequencies on those bands.

30-Meter Restrictions

The 30-meter band (10.100–10.150 MHz) is governed by special rules that apply to all amateur classes. Phone (voice) transmission is prohibited on 30 meters — no SSB, AM, or FM voice operation is permitted there. Image transmission is also prohibited on 30 meters. These restrictions reflect an international secondary allocation agreement. On 30 meters, amateurs may operate CW and narrow-band digital modes only. The maximum power on 30 meters is also limited to 200 watts PEP output — lower than the 1500-watt limit on most other HF bands.

Specific Frequency Restrictions

On the 40-meter band, General class licensees are prohibited from transmitting between 7.125 MHz and 7.175 MHz. This segment is reserved for Amateur Extra operators. A General class operator calling on 7.150 MHz would be outside their licensed privileges and in violation of FCC rules.

On 15 meters, a frequency of 21300 kHz (21.300 MHz) is within the General class portion of the band. This is the lower edge of the General voice allocation on 15 meters. The Extra-only segment on 15 meters sits below that frequency.

Primary and Secondary Allocations

The FCC and international frequency coordination bodies assign each frequency band to various radio services as either primary or secondary users. When the FCC rules designate the amateur service as a secondary user on a band, two obligations apply: amateur stations must not cause harmful interference to stations of the primary service, and amateur stations must accept interference from primary service stations — even when that interference disrupts an ongoing contact. Amateurs cannot demand that primary users move or reduce power. This is the fundamental rule governing all secondary allocations worldwide.

10-Meter Privileges

The 10-meter band is a straightforward case for General class operators: they may transmit CW emissions anywhere in the entire band. There is no restriction to a CW-only sub-band on 10 meters for General class — the entire band is available for CW operation. The portion of 10 meters available for repeater use is the segment above 29.5 MHz. Repeaters operating in this portion of 10 meters can retransmit signals from stations with General or Technician class operators, as long as the repeater's control operator holds the appropriate license class.

General Class Voice Segment Position

On the four bands where General class licensees do not have access to the entire voice portion — 80, 40, 20, and 15 meters — General class operators use the upper frequency portion of the voice segment. The lower frequency portion of the voice segment on those bands is reserved for Amateur Extra. This pattern is consistent across all four affected bands: Extra gets the lower portion, General gets the upper portion. When studying band plans, knowing that General operates in the upper portion of the restricted voice segments is the key fact to remember.

G1A Practice Questions