G2B Operating Procedures - General study

G2B011 of 11§ 97.101(b), (c)

Which of the following is true concerning access to frequencies?

Why FCC 97.101(b) says all licensees must cooperate in selecting transmitting channels, and that no frequency is assigned for the exclusive use of any station. That means no net, net control, contest group, or ongoing QSO owns a frequency or can claim a legal right to it. The only exception is genuine emergency communications, where 97.403 and 97.405 let a station use any means necessary to get help. Band plans, net schedules and common courtesy are voluntary agreements, not FCC-granted priority.

Watch out The choices giving priority to nets or to QSOs in progress describe good operating etiquette, and yielding is the polite thing to do, but none of that is a rule and no group can legally claim a frequency.

No one owns a frequency. Only a real emergency outranks everyone else.

HamSandwich explanation, first draft. The question and answers are the NCVEC text.

47 CFR 97.101(b) General standards.

(a) In all respects not specifically covered by FCC Rules each amateur station must be operated in accordance with good engineering and good amateur practice.

(b) Each station licensee and each control operator must cooperate in selecting transmitting channels and in making the most effective use of the amateur service frequencies. No frequency will be assigned for the exclusive use of any station.

(c) At all times and on all frequencies, each control operator must give priority to stations providing emergency communications, except to stations transmitting communications for training drills and tests in RACES.

(d) No amateur operator shall willfully or maliciously interfere with or cause interference to any radio communication or signal.

eCFR text as of 1 Sep 2026 · read on ecfr.gov

G2B022 of 11

What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

Why A distress call has absolute priority over all other communication. FCC rules (97.403 and 97.405) require any station to render assistance to a station in distress, using any means at its disposal. The immediate, practical step is to stop your ongoing QSO, answer the distressed station so it knows it has been heard, and find out what kind of help is needed so you can relay the right information to the right people.

Watch out Contacting an emergency coordinator or other authorities may come next, but only after you know who is in trouble and what they need; going silent or cutting power just leaves the distressed station calling into an empty band.

Answer first, then relay. Never leave a distress call unacknowledged.

HamSandwich explanation, first draft. The question and answers are the NCVEC text.

G2B033 of 11

What is good amateur practice if propagation changes during a contact creating interference from other stations using the frequency?

Why No amateur station has a priority claim on any frequency (see 97.101(b): all amateurs must cooperate in selecting and using frequencies). When changing propagation, such as a gray-line or band opening, suddenly puts two QSOs on top of each other, neither group did anything wrong, so the expected response is courtesy and negotiation: agree on who moves, shift up or down a few kHz, or share the frequency. The pool consistently rewards the cooperative, good-faith solution.

Watch out Claiming priority is wrong because frequencies are not owned; the only exception in Part 97 is that no station may willfully interfere, and distress traffic takes precedence. Simply reducing power keeps the mutual interference and just makes you harder to copy.

Nobody owns a frequency. When two QSOs collide, negotiate, don't declare priority.

HamSandwich explanation, first draft. The question and answers are the NCVEC text.

G2B044 of 11

When selecting a CW transmitting frequency, what minimum separation from other stations should be used to minimize interference to stations on adjacent frequencies?

Why A CW signal keyed at typical speeds occupies only a couple hundred hertz of bandwidth, so stations can be packed closely together. Leaving roughly 150 Hz to 500 Hz between your transmit frequency and the next signal keeps both out of each other's receive filters, which are often set to 250 Hz or 500 Hz for CW. Less separation than that and the two notes fall inside the same filter passband and interfere.

Watch out The kilohertz-wide figures come from voice practice: 1 kHz to 3 kHz would be sensible spacing for SSB, whose signal is about 3 kHz wide, and 3 kHz to 6 kHz is even wider. Using that much room on CW wastes band space.

CW is narrow: think in hundreds of hertz (150-500 Hz). SSB is wide: think in kilohertz.

HamSandwich explanation, first draft. The question and answers are the NCVEC text.

G2B055 of 11

When selecting an SSB transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

Why A typical amateur SSB signal occupies roughly 2 to 3 kHz of spectrum, so your carrier (dial) frequency must be at least that far from the next station's dial frequency for the two sidebands not to overlap. Spacing closer than the signal's own bandwidth guarantees splatter into the adjacent QSO even if both transmitters are clean. So the minimum practical separation equals the SSB bandwidth itself, about 2 to 3 kHz.

Watch out The choice of about 6 kHz is roughly the bandwidth of an AM signal (two sidebands plus carrier) and is more separation than SSB needs; the choices in hertz are far narrower than any voice signal and would put you right on top of the other station.

SSB is about 3 kHz wide, so stay about 3 kHz away. Bandwidth equals minimum spacing.

HamSandwich explanation, first draft. The question and answers are the NCVEC text.

G2B066 of 11

How can you avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

Why A frequency can sound clear to you while a QSO is in progress that you cannot hear, for example when you only hear one side of a contact or the other station is behind a skip zone. The courteous and standard practice is to ask whether the frequency is in use: on CW the Q signal QRL? means "is this frequency busy?", and on phone you simply ask, in both cases following with your call sign so your transmission is identified per 97.119. Then listen for a reply before you start calling CQ.

Watch out Listening alone, even for a couple of minutes, does not reveal a station you cannot hear, and the choice using QSY is backwards since QSY means "change frequency," which is what you would ask another station to do, not an inquiry.

QRL? = "is the line busy?" Ask first, add your call sign, then listen.

HamSandwich explanation, first draft. The question and answers are the NCVEC text.

G2B077 of 11

Which of the following complies with commonly accepted amateur practice when choosing a frequency on which to initiate a call?

Why Band plans are voluntary agreements, coordinated through groups like the ARRL and IARU, that assign segments to particular modes and activities (CW, digital, SSB, beacons, satellites, calling frequencies). Operating within the segment appropriate to your mode is the accepted good amateur practice referenced in 97.101(a), and it keeps incompatible modes from landing on top of each other. Before calling you also listen and ask whether the frequency is in use, but the specific practice being tested here is honoring the band plan.

Watch out Listening for a full two minutes is not any recognized standard; a short listen plus asking "is this frequency in use?" is what operators actually do. Transmitting your call three times is an old phone-calling habit, not a rule, and the FCC only requires identification every 10 minutes and at the end of a communication.

Band plans are voluntary but expected: listen, ask if in use, then call in the right mode segment.

HamSandwich explanation, first draft. The question and answers are the NCVEC text.

G2B088 of 11

What is the voluntary band plan restriction for US stations transmitting within the 48 contiguous states in the 50.1 MHz to 50.125 MHz band segment?

Why The 25 kHz from 50.100 to 50.125 MHz is the 6 meter DX window under the voluntary band plan. Because 6 meter openings to other continents are rare and weak, stations in the lower 48 states keep that slice clear for contacts with stations outside the contiguous 48 (DX, Alaska, Hawaii, Caribbean, etc.). Domestic stateside SSB work starts at the calling frequency 50.125 MHz and above. This is a band plan convention, not an FCC rule, but it is widely honored.

Watch out The choice limiting the segment to contacts within the 48 states is exactly backwards; that is what the rest of the SSB portion above 50.125 MHz is for. Digital and SSTV activity has its own segments higher in the band.

50.100-50.125 = the DX window: if the other station is inside the lower 48, move up to 50.125+.

HamSandwich explanation, first draft. The question and answers are the NCVEC text.

G2B099 of 11§ 97.407(a)

Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?

Why RACES is still Amateur Radio Service operation, so 97.407(a) requires that any station transmitting in RACES have an FCC-licensed amateur as its control operator, and both the station and operator must be enrolled or certified with the sponsoring civil defense organization. The emergency nature of the traffic does not create an exception to the licensing requirement; it only changes what communications are permitted. Frequency privileges are still limited to those of the control operator's license class.

Watch out The choice adding an appropriate government official is tempting because officials often supply the message content, but an unlicensed official can only participate as a third party while a licensed amateur keeps control of the station.

RACES is still amateur radio: no FCC amateur licence, no control operator seat, emergency or not.

HamSandwich explanation, first draft. The question and answers are the NCVEC text.

47 CFR 97.407(a) Radio amateur civil emergency service.

(a) No station may transmit in RACES unless it is an FCC-licensed primary, club, or military recreation station and it is certified by a civil defense organization as registered with that organization. No person may be the control operator of an amateur station transmitting in RACES unless that person holds a FCC-issued amateur operator license and is certified by a civil defense organization as enrolled in that organization.

(b) The frequency bands and segments and emissions authorized to the control operator are available to stations transmitting communications in RACES on a shared basis with the amateur service. In the event of an emergency which necessitates invoking the President's War Emergency Powers under the provisions of section 706 of the Communications Act of 1934, as amended, 47 U.S.C. 606, amateur stations participating in RACES may only transmit on the frequency segments authorized pursuant to part 214 of this chapter.

(c) An amateur station registered with a civil defense organization may only communicate with the following stations upon authorization of the responsible civil defense official for the organization with which the amateur station is registered:

(1) An amateur station registered with the same or another civil defense organization; and

(2) A station in a service regulated by the FCC whenever such communication is authorized by the FCC.

(d) All communications transmitted in RACES must be specifically authorized by the civil defense organization for the area served. Only civil defense communications of the following types may be transmitted:

(1) Messages concerning impending or actual conditions jeopardizing the public safety, or affecting the national defense or security during periods of local, regional, or national civil emergencies;

(2) Messages directly concerning the immediate safety of life of individuals, the immediate protection of property, maintenance of law and order, alleviation of human suffering and need, and the combating of armed attack or sabotage;

(3) Messages directly concerning the accumulation and dissemination of public information or instructions to the civilian population essential to the activities of the civil defense organization or other authorized governmental or relief agencies; and

(4) Communications for RACES training drills and tests necessary to ensure the establishment and maintenance of orderly and efficient operation of the RACES as ordered by the responsible civil defense organization served. Such drills and tests may not exceed a total time of 1 hour per week. With the approval of the chief officer for emergency planning in the applicable State, Commonwealth, District or territory, however, such tests and drills may be conducted for a period not to exceed 72 hours no more than twice in any calendar year.

eCFR text as of 1 Sep 2026 · read on ecfr.gov

G2B1010 of 11

Which of the following is good amateur practice for net management?

Why Nets are run on a shared, unowned frequency, so conditions change and interference can appear at any moment. Good net control practice is to announce an alternate or backup frequency in advance, so that if the primary becomes unusable everyone knows where to reassemble without losing the net. This is standard in emergency and traffic nets, where continuity of communication matters most.

Watch out Reading the entire roster every session and piling on multiple phonetic alphabets just wastes airtime and slows check-ins; net control should keep transmissions short and use one standard phonetic alphabet only when clarity requires it.

Nets need a Plan B frequency. Efficiency, not ceremony, is the mark of good net control.

HamSandwich explanation, first draft. The question and answers are the NCVEC text.

G2B1111 of 11§ 97.407(d)(4)

How often may RACES training drills and tests be routinely conducted without special authorization?

Why Part 97.407(d)(4) allows RACES stations to routinely run drills and tests as part of a planned civil defense exercise for no more than one hour per week. Longer drills are possible, but only with special authorization: up to 72 hours no more than twice in any calendar year. The limit exists so that emergency-service traffic authorizations are not used as a loophole for routine operating.

Watch out The monthly figures sound plausible because rules often use monthly limits, but the RACES drill allowance is written per week, not per month, and the two-hour figure is simply not in the rule.

RACES drills: one hour a week, no permission needed. One and one: 1 hour, 1 week.

HamSandwich explanation, first draft. The question and answers are the NCVEC text.

47 CFR 97.407(d)(4) Radio amateur civil emergency service.