G2: Operating Procedures – Ham Radio General License Study Guide

G2 covers how General class operators communicate on the air — the conventions, practices, and rules that govern HF phone, CW, and digital mode operation. Five exam questions come from this subelement, one from each group.

G2A addresses phone operating procedures: USB and LSB conventions by band, how SSB works and its advantages, ALC and VOX settings, breaking into a contact, answering DX calls, and responding to a CQ DX. G2B covers operating effectively: frequency priority rules, how to handle a station in distress, resolving interference, minimum frequency separation for CW and SSB, checking if a frequency is in use, band plans, RACES emergency operations, net management, and drill frequency limits. G2C addresses CW procedures: full break-in operation, Q signals, prosigns, zero beat, RST reporting, and proper CW speed. G2D covers HF operations and the Volunteer Monitor Program: the VMP's purpose and methods, azimuthal maps, long-path contacts, the NATO phonetic alphabet, station logs, HF contest requirements, QRP, and signal reports. G2E covers digital mode procedures: RTTY conventions, modern weak-signal modes, FT8 requirements, digital band segments, PACTOR and VARA, Winlink, and AREDN networks.

G2A: Phone Operating Procedures

SSB (single sideband) is the dominant voice mode on HF. The sideband used depends on the band: upper sideband (USB) is standard on 14 MHz and above, on the 17- and 12-meter bands, and on VHF/UHF SSB. Lower sideband (LSB) is conventional on 160, 75, and 40 meters — not because it is required by law, but because it is commonly accepted amateur practice. SSB suppresses the carrier and one sideband, transmitting only one sideband: both the carrier and the opposite sideband are suppressed, which gives SSB its power efficiency and narrow bandwidth advantage. ALC (automatic level control) on an SSB transceiver is set by adjusting transmit audio or microphone gain. VOX allows hands-free operation by triggering the transmitter in response to voice. When breaking into a phone contact, the correct method is to say your call sign once. When a station in the contiguous 48 states sends "CQ DX," only stations outside the lower 48 states should respond.

G2B: Operating Practices and Emergency

No amateur station has priority access to any frequency except during emergencies — nets, QSOs, and contests do not confer priority. When a distress station breaks into your contact, acknowledge the station and determine what assistance may be needed. When interference occurs due to propagation changes, attempt to resolve it mutually with the other stations involved. When selecting frequencies, minimum separation for CW is 150–500 Hz; for SSB it is 2–3 kHz. Before calling CQ on CW, send "QRL?" followed by your call sign; on phone, ask if the frequency is in use followed by your call sign. Following the voluntary band plan complies with accepted practice when choosing a frequency. On 50.1–50.125 MHz (the 6-meter DX window), US stations in the 48 contiguous states should only contact stations outside those states. In RACES operations, only a person holding an FCC-issued amateur operator license may be the control operator. Good net management includes maintaining a backup frequency. RACES training drills and tests may be conducted without special authorization for no more than 1 hour per week.

G2C: CW Procedures

Full break-in CW operation (QSK) allows the transmitting station to receive between individual code characters and elements — the operator can hear the other station even during their own transmission gaps. QRS means send slower. KN at the end of a transmission means the operator is listening only for a specific station or stations. QRL? means "Are you busy?" or "Is this frequency in use?" QSL means "I have received and understood." QRN means "I am troubled by static." QRV means "I am ready to receive." Zero beat means matching your transmit frequency exactly to the frequency of the received signal. When answering a CQ, send at the fastest speed at which you are comfortable copying but no faster than the calling station's speed. The prosign AR signals the end of a formal message. A "C" appended to an RST report indicates a chirpy or unstable signal.

G2D: HF Operations and Monitoring

The Volunteer Monitor Program (VMP) consists of amateur volunteers formally enlisted to monitor the airwaves for rules violations, with the objective of encouraging self-regulation and rules compliance. VMs localize an unknown carrier on a repeater by comparing beam headings from multiple home locations. An azimuthal projection map shows true bearings and distances from a specific location and is used to determine the heading for a long-path or short-path contact. A long-path contact is made by pointing the antenna 180 degrees from the short-path heading. The NATO Phonetic Alphabet uses Alpha, Bravo, Charlie, Delta — not Able/Baker/Charlie/Dog or Adam/Boy/Charles/David. Amateurs keep station logs to help with a reply if the FCC requests information about the station — not because the FCC requires logging all contacts. During an HF contest, the only specific FCC requirement is to identify your station according to normal FCC regulations. QRP refers to low-power transmit operation. Signal reports are exchanged at the beginning of a contact to allow each station to operate according to current conditions.

G2E: Digital Modes

RTTY transmitted via AFSK with an SSB transmitter uses LSB (lower sideband). Modes such as JT65, JT9, FT4, and FT8 use USB when transmitted via AFSK. The most common frequency shift for RTTY on HF is 170 Hz. FT8 requires computer time accurate to within approximately 1 second — without precise timing, FT8 transmissions fall out of synchronization with the 15-second transmission cycle. When answering a station calling CQ in FT8, transmit during the alternate time slot on a clear frequency. Most digital mode activity on 20 meters is between 14.070 and 14.100 MHz; FT8 commonly operates near 14.074–14.077 MHz. PACTOR connections are limited to two stations — you cannot join an existing PACTOR contact. VARA is a digital protocol used with Winlink. Winlink is a system that combines wireless email, packet radio, and VHF/HF band operation. A Winlink Remote Message Server is also called a Gateway. To contact a digital messaging gateway, transmit a connect message on the station's published frequency. AREDN mesh networks provide high-speed data services during emergencies and community events. If an RTTY or FSK signal cannot be decoded even when apparently tuned in correctly, possible causes include reversed mark and space frequencies, wrong baud rate, or wrong sideband.

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