FCC Technician Practice Questions (2026) — Free Sample Questions with Answers

Answer: B

Only once at the start and once at the end: Not enough. A 25-minute conversation also requires identification at least every 10 minutes during the contact.

Every 10 minutes and at the end of the contact: Correct. Each station must give its call sign at least every 10 minutes during a communication and at the end of it (47 CFR 97.119(a)).

Every 30 minutes and when another station joins: Incorrect. The interval is 10 minutes, and a new station joining does not create a separate ID requirement.

At the start of every single transmission: More than required. Identifying each transmission is allowed but not mandated; the rule is every 10 minutes and at the end.

Remember the ID rule: your call sign at least every 10 minutes during a communication and at its end, in English phone or CW.

Answer: A

The repeater needs a CTCSS tone your radio isn't sending: Correct. Many repeaters require a sub-audible CTCSS (PL) tone to open; without the right tone, a strong, correctly offset signal is ignored.

Your receiver squelch is set too tightly to hear replies: Incorrect. Squelch affects only your receiver; you already hear the repeater, and squelch does not stop the repeater from keying.

Your transmit power is high enough to overload it: Unlikely. A repeater is built to handle strong local signals; too much power does not stop it from retransmitting.

The repeater is switched to reverse-split operation: Incorrect. Reverse split is a listening technique on the user's radio to check the input frequency; it is not a repeater mode that blocks users.

Can hear the repeater but can't access it with the right offset? Check the CTCSS/PL tone (or DCS code) first.

Answer: C

0.67 amperes: Incorrect. This divides resistance by voltage (8 / 12); Ohm's law is I = E / R.

4 amperes: Incorrect. This subtracts the values (12 - 8), which has no meaning in Ohm's law.

1.5 amperes: Correct. I = E / R = 12 V / 8 ohms = 1.5 A.

96 amperes: Incorrect. This multiplies voltage by resistance; E x R is not current.

Ohm's law: E = I x R, so I = E / R and R = E / I.

Answer: D

Add a low-pass filter at your transceiver output: Not the fix here. A low-pass filter at the transmitter reduces harmonics, but the stem says your signal is already clean.

Change your emission mode from FM to SSB: Incorrect. Switching modes does not stop a strong nearby signal from overloading the neighbor's receiver front end.

Turn up the neighbor's radio volume to mask it: Incorrect. Volume does not affect receiver overload and does nothing about the strong signal entering the radio.

Fit a filter at the affected radio's input: Correct. This is fundamental overload: the receiver cannot reject your strong legitimate signal, so a filter or choke at the affected device is the cure.

Clean transmitter + nearby device misbehaving = fundamental overload; fix it at the affected device with filters or ferrite chokes.

Answer: B

Spin fading as the satellite rotates in orbit: Incorrect. Spin fading causes rhythmic changes in signal strength, not a steady frequency change.

Doppler shift from the satellite's motion: Correct. The satellite's speed relative to you raises the received frequency as it approaches and lowers it as it moves away.

Battery voltage drift aboard the satellite: Incorrect. Satellite transmitters are frequency-controlled; the drift you hear is caused by relative motion.

Ionospheric skip shifting the signal's path: Incorrect. Satellite VHF/UHF signals pass through the ionosphere; skip does not change frequency.

Doppler shift: frequency appears higher as a low-Earth-orbit satellite approaches and lower as it recedes; tune to follow it during the pass.

Answer: C

Run the wire under the power lines so it is shielded: Unsafe. Any antenna placed below power lines can contact them if it or a support falls or the lines sag.

Use insulated wire so contact with power lines is harmless: Unsafe. Antenna wire insulation is not rated for power-line voltages and does not make contact safe.

Place it so a falling antenna can't touch the lines: Correct. Locate the antenna and supports far enough away that if anything falls or breaks, it cannot reach a power line.

Attach one end to the utility pole for added height: Unsafe and not permitted. Utility poles carry high voltage and belong to the utility; never attach antennas to them.

Keep antennas and supports far enough from power lines that nothing can touch them even if it falls; contact can be fatal.