2-meter band

Lore & Background

The 2-meter band is widely used for local FM operations, often through repeaters located on tall buildings or hilltops. Repeaters use vertically polarized collinear antenna arrays to cover large areas. Handheld transceivers typically produce about 5 watts, while mobile or home stations may use 25 to 75 watts. Even without repeaters, the band provides reliable crosstown communications in smaller towns, making it ideal for emergency communications, such as between Red Cross shelters and local authorities.

For long-distance (DX) communications, operators use CW or SSB modes with higher power (200–500 watts) and horizontally polarized Yagi-Uda beam antennas. Stations with antennas in high, clear locations can consistently communicate 100–300 miles (160–480 km). Signal enhancements such as tropospheric ducting, sporadic E, and meteor scatter can enable trans-oceanic and trans-continental contacts. Tropospheric ducting can carry signals hundreds or even thousands of kilometers, while sporadic E can facilitate contacts over 1,000 miles (1,600 km) with strong signals, often without high power or large antennas.

The 2-meter band is also used in satellite communications, often in conjunction with the 70-centimeter band via orbiting amateur radio satellites in low Earth orbit (about 450 miles altitude) or high elliptical orbits (up to 30,000 miles). Transequatorial propagation is a regular daytime occurrence over equatorial regions, and meteor burst communications use high-speed digital modes.

Reader's Guide

The 2-meter band's significance lies in its role as the most used band for local emergency communications, due to its reliability, compact equipment, and ease of licensing. In the US, many amateur operators carry 2-meter handheld transceivers, furthering emergency response capabilities. The band's popularity is also driven by the widespread use of FM repeaters, which extend reliable coverage to about 25 miles typically, and up to 75 miles from high locations. For DX enthusiasts, the band offers opportunities for long-distance contacts via tropospheric ducting, sporadic E, and satellite links, with distances approaching those of shortwave under favorable conditions. The band's legacy includes its integration with amateur satellite operations and its consistent use for local, reliable communication in both routine and emergency contexts.

Did You Know?

• The 2-meter band spans 144–148 MHz in ITU Regions 2 and 3, and 144–146 MHz in Region 1.
• Typical handheld 2-meter FM transceivers produce about 5 watts of transmit power.
• Repeaters are often located on tall buildings or hilltops and can provide reliable range up to 75 miles (121 km) in high locations.
• Sporadic E propagation on 2 meters can facilitate contacts over 1,000 miles (1,600 km) with very strong signals.