Ham Radio School

What determines the bands and frequencies on which a station may transmit? Get the rules and regs on transmitting privileges straight.

The 2022-2026 Technician License question pool inquires about factors effecting RF exposure levels of humans. Let's take a look: T0C04:...

The safety questions in the 2022-2026 Technician License question pool asks about touching an antenna during transmission: T0C07: What...

Learn proper grounding methods to protect your antenna, tower, and station from lightning strikes.

Signals propagating by ionospheric skip sometime tend to fade in and out. Find out what causes signal fade!

Considerations and procedures to help find the right repeater for your common on-air ops.

Learn what you can, and cannot, do regarding contacts with foreign stations. Clarity on international contacts with ham radio.

Advantages of contesting, plus contest operating tips.

Expand your understanding of receiver signal processing, particularly the role of receiver filters in isolating signals.

Roger, you are 5-9, over. Get up to speed on signal reports. Readability, strength, and tone (CW).

The 2022-2026 Technician License question pool inquires about the best conductors to use for radio frequency grounding, or bonding:...

The 2022-2026 Technician License question pool includes a question about various types of radio frequency interference, or RFI: T7B03:...

Receiver interference is sometimes a doggedly stubborn problem with mobile stations. The RF environment of an automobile is often just...

An introduction to digital signal processing in your transceiver.

The 2019-2023 General License exam pool requires some calculations of equivalent component values, such as a single component that is...

The 2022-2026 Technician License question pool contains five questions referencing figure T-1 below. Let's get a solid understanding of...

An intuitive mechanical analog to grasp the function of inductor components.

The handheld digital multimeter (DMM) is a basic tool for ham radio applications. It is called a multimeter because it combines multiple...

The 2022-2026 Technician License question pool inquires about those pesky math prefixes used in front of many electrical measurement...

The 2022-2026 Technician License question pool asks for the general equation to compute voltage: T5D02: What formula is used to calculate...