The 222–225 MHz amateur radio band—commonly known as the 1.25-meter band or simply "220"—is arguably the most peculiar neighborhood in the RF spectrum. It is the "middle child" of the VHF world: squeezed between the wildly popular 2-meter band (144 MHz) and the ubiquitous 70-centimeter band (440 MHz).
While it doesn't boast the massive crowds of 2 meters, its obscurity is exactly what makes it a hidden gem for hams who value clear frequencies, unique propagation, and a tighter-knit community.
1. The History: A Battle for Spectrum
To understand 220, you have to understand its history of "territorial disputes." Originally, hams in the United States had access to the full 220–225 MHz range. However, because the band was seen as "underutilized" by hams, the FCC faced immense pressure from commercial interests.
In the late 1980s, the FCC controversially reallocated the bottom 2 MHz (220–222 MHz) to the Land Mobile Service. This was a blow to the amateur community, but it served as a wake-up call: "Use it or lose it." Today, hams enjoy a primary allocation at 222–225 MHz in the US and Canada (ITU Region 2), though it remains a rare find in Europe and other parts of the world.
2. Technical Characteristics: Why Use 1.25m?
The physics of the 1.25-meter band offer a "Goldilocks" compromise between the characteristics of 144 MHz and 440 MHz.
Propagation and Range
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Line of Sight: Like all VHF, 220 is primarily line-of-sight. However, it tends to "hug" the terrain slightly better than 440 MHz and suffers less from multipath interference than 2 meters in urban environments.
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Building Penetration: It penetrates structures better than 2 meters but doesn't bounce around internal hallways quite as efficiently as the shorter waves of 70cm.
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Noise Floor: One of the greatest advantages is the low noise floor. Because there are fewer consumer electronics operating in this specific range compared to the noisy 2-meter band, weak signals often sound much clearer on 220.
Antenna Physics
The wavelength of ~1.25 meters is incredibly convenient for DIY builders.
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A quarter-wave whip is only about 12.5 inches (32 cm) long.
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A half-wave dipole is roughly 25 inches (63 cm).
This makes 220 antennas compact enough for sleek mobile installations while being large enough to have a decent "capture area" compared to tiny UHF antennas.
3. The 220 Experience: "The Quiet Neighborhood"
If 2 meters is a crowded interstate highway and 70cm is a busy city center, 220 MHz is a scenic backroad.
Repeater Culture
Repeaters on 220 are often less congested. In many metropolitan areas, 2-meter repeaters are "kerchunked" constantly or dominated by long-standing closed groups. 220 repeaters tend to be maintained by dedicated enthusiasts. Because you have to go slightly out of your way to buy 220-capable gear, the operators you meet are often more technically inclined or "hardcore" hobbyists.
Digital Modes and Linking
Because of the available bandwidth and lack of congestion, 220 is a favorite for:
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Packet Radio: High-speed data links often thrive here.
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AllStar and EchoLink: Many "hub" repeaters use 220 for linking because it stays out of the way of local FM traffic.
4. The Hardware Hurdle: The "Big Three" Problem
The biggest criticism of the 1.25m band is the equipment gap.
Major Japanese manufacturers (Icom, Yaesu, Kenwood) often leave 220 MHz out of their flagship "dual-band" radios to save on production costs, as the band is not available globally.
| Equipment Tier | Availability | Examples |
| Budget Handhelds | High | Baofeng UV-5RX3, BTech UV-5X3 |
| Mobile Rigs | Moderate | Alinco DR-235T, BridgeCom BCM-220 |
| All-Mode / Base | Rare | Kenwood TS-2000 (discontinued), Elecraft Transverters |
For many, the entry point is a "tri-band" Chinese handheld. While affordable, these often lack the filtering of higher-end gear, which can lead to desensing in RF-heavy environments.
5. Summary: Should You Get on 220?
The 222–225 MHz band is a vital part of the amateur radio ecosystem. It offers a refuge from the chaos of 2 meters and a playground for those who enjoy building their own antennas or experimenting with clear-channel FM.
The Verdict: If you live in an area with active 220 repeaters, or if you and a group of friends want a "private" place to talk without interference, 220 MHz is phenomenal. It is the "connoisseur’s band."
Note: Always check your local frequency coordinator's band plan, as the 222.0–222.1 MHz segment is generally reserved for weak-signal CW and SSB work—don't be the person who drops an FM carrier on top of a distance-record attempt!