Frequencies & Bands

Welcome to the most comprehensive guide to ham radio frequencies and amateur radio frequency allocations available on the web. Whether you're a newly licensed Technician or an experienced Extra class operator, understanding the complex world of amateur radio bands is essential for effective communication and regulatory compliance. This complete reference covers everything from basic frequency concepts to advanced propagation characteristics across all amateur radio bands. Ham radio frequencies

Understanding the complete spectrum of amateur radio frequencies is essential for every ham radio operator, whether you're just getting your Technician license or working toward Amateur Extra class privileges. The amateur radio bands represent one of the most fascinating aspects of our hobby, offering everything from local neighborhood communications to worldwide DX contacts that span continents and oceans. This comprehensive guide explores every aspect of ham radio bands, from the technical d

What is VHF Radio and Why Ham Operators Love It Very High Frequency (VHF) radio represents one of the most accessible and versatile segments of the amateur radio spectrum, making it an ideal entry point for new hams while offering sophisticated capabilities that keep experienced operators engaged. Frequencies between 30 and 300 MHz are referred to as Very High Frequency (VHF) region, providing amateur radio operators with a unique blend of local and long-distance communication opportunities.

For ham radio operators exploring UHF radio communications, understanding the complexities of the 70cm amateur band opens doors to exciting opportunities in repeater work, weak signal communication, satellite operations, and emergency services. This comprehensive guide examines UHF radio fundamentals, equipment selection, and practical applications that will enhance your amateur radio experience on frequencies from 420 to 450 MHz. Understanding UHF Radio Frequencies and the 70cm Amateur Band

Understanding Ham Radio Frequency Bands and Allocations FCC Frequency Allocation Basics The FCC's Table of Frequency Allocations was revised on April 3, 2026, providing the most current guidance for amateur radio operators. The list of frequency ranges is called a band allocation, which may be set by international agreements, and national regulations. The modes and types of allocations within each frequency band is called a bandplan which ensures organized use of the radio spectrum. The Un

The HF band plan serves as the essential roadmap for amateur radio operators navigating high-frequency spectrum from 3 to 30 MHz. The International Telecommunication Union (ITU) oversees how much radio spectrum is set aside for amateur radio transmissions, and the modes and types of allocations within each frequency band is called a bandplan; it may be determined by regulation, but most typically is set by agreements between amateur radio operators. Understanding band plans is fundamental to e

The UHF amateur radio allocation extends from 430 to 440 MHz internationally, however, some countries, such as the United States, allocate hams 420 to 450 MHz. Technicians and higher class licensees have privileges across the entire 70 cm band, 420 to 450 MHz. The 70 cm band is BIG…providing 30 MHz of spectrum compared to only 4 MHz on 2 Meters. The 70-centimeter or 440 MHz band is a portion of the UHF radio spectrum internationally allocated to amateur radio and amateur satellite use. This ba

The 2-meter amateur radio band is a portion of the VHF radio spectrum that comprises frequencies stretching from 144 MHz to 148 MHz in International Telecommunication Union region (ITU) Regions 2 (North and South America plus Hawaii) and 3 (Asia and Oceania) and from 144 MHz to 146 MHz in ITU Region 1 (Europe, Africa, and Russia). Frequencies between 30 and 300 MHz are referred to as Very High Frequency (VHF) region and those between 300 MHz and 3 GHz are referred to as Ultra High Frequency (UHF

The 70 centimeter band, also commonly known as the 70cm band or 440 MHz band, represents one of amateur radio's most popular and versatile UHF frequency allocations. The 70-centimeter or 440 MHz band is a portion of the UHF radio spectrum internationally allocated to amateur radio and amateur satellite use. The ITU amateur radio allocation is from 430 to 440 MHz; however, some countries, such as the United States, allocate hams 420 to 450 MHz. The name "70 centimeter" derives from the approxim

What is the 10 Meter Band? The 10-meter band was allocated on a worldwide basis by the International Radiotelegraph Conference in Washington, DC, on 4 October 1927. Its frequency allocation was then 28-30 MHz. A 300 kHz segment, from 29.700–30.000 MHz, was removed from the amateur radio allocation in 1947 by the International Radio Conference of Atlantic City. Frequency Range and Allocation The International Telecommunication Union recommends allowing amateur radio operations in the freque

What Is a Ham Radio Frequency Guide and Why You Need One Understanding Amateur Radio Frequency Allocations The FCC divides the radio spectrum into multiple bands for different purposes, and each frequency range is allocated to groups of users on either a primary or secondary basis. Within the amateur radio service, the spectrum spans an enormous range - amateur radio has allocations in over 30 separate frequency bands, from 135.7 kHz all the way up to 248 GHz. The spectrum for ham radio is d

What Are Ham Radio Solar Conditions? Why the Sun Matters to HF Radio Operators Ham radio solar conditions refer to the combined set of space weather parameters - solar flux, sunspot numbers, geomagnetic indices, and X-ray flux - that collectively determine how well HF radio signals propagate through Earth's ionosphere. Unlike VHF and UHF communication, which relies primarily on line-of-sight paths or local repeaters, HF radio (3 - 30 MHz) depends almost entirely on the ionosphere bouncing si