Frequency Guide

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Frequency Cheat Sheet

Iron Spear Outfitters

Comprehensive Frequency Reference Guide

Maximus Antennas & Gorilla Comms

www.ironspearoutfitters.com

License-Free & GMRS Radio

GMRS & FRS Channels

Channel Frequency (MHz) Notes (GMRS License for High Power)
FRS/GMRS Shared (Max 50W GMRS / 2W FRS)
1-7 462.5625 - 462.7125 Repeater capable on GMRS
FRS Only (Max 0.5W)
8-14 467.5625 - 467.7125 Low power, short range
FRS/GMRS Shared (Max 50W GMRS / 2W FRS)
15-22 462.5500 - 462.7250 Repeater capable on GMRS

LoRa / ISM Band

Band Frequency Range (MHz) Common Use
900 MHz ISM 902 - 928 LoRa, mesh networks, IoT, low-power data

Amateur (Ham) Radio Simplex Frequencies

An FCC Amateur Radio license is required to transmit. Privileges expand with license class.

Technician Class Privileges (VHF/UHF+)

Band National Calling Freq (MHz) Notes
6 Meter 52.525 FM Simplex
2 Meter 146.520 Most popular simplex calling channel
1.25 Meter 223.500 Less common, quieter band
70 cm 446.000 Excellent for urban environments

Technicians also have limited privileges on some HF bands.

General Class Privileges (HF)

Includes all Technician privileges plus access to worldwide HF bands.

Band Common Voice Simplex Range (MHz) Primary Use
80 / 75 Meters 3.800 - 3.900 Regional communication, best at night
40 Meters 7.175 - 7.225 Medium-to-long distance, day & night
20 Meters 14.225 - 14.300 Long distance (DX), best during the day
17 Meters 18.130 - 18.168 Similar to 20m, daytime DX
15 Meters 21.300 - 21.450 Daytime DX, dependent on solar cycle
12 Meters 24.930 - 24.990 Daytime DX, dependent on solar cycle
10 Meters 28.300 - 28.500 Long distance when band is open

Amateur Extra Class Privileges

Includes all General privileges with expanded spectrum on all bands. Refer to a full ARRL band chart for specific frequency allocations.

Wi-Fi Network Standards & Frequencies

Standard Common Name Frequency Band(s) Key Characteristics
802.11 Legacy 2.4 GHz Original standard (1997), slow speeds (1-2 Mbps). Obsolete.
802.11a Wi-Fi 2 5 GHz Faster than 'b' but shorter range. Not widely adopted initially.
802.11b Wi-Fi 1 2.4 GHz First widely adopted standard. Prone to interference.
802.11g Wi-Fi 3 2.4 GHz Improvement on 'b', backward compatible. Still common in older devices.
802.11n Wi-Fi 4 2.4 GHz / 5 GHz First dual-band standard, introduced MIMO for better performance.
802.11ac Wi-Fi 5 5 GHz Significant speed increase over 'n'. The most common standard in use today.
802.11ax Wi-Fi 6 / 6E 2.4 / 5 / 6 GHz Focuses on efficiency in crowded networks (OFDMA). 6E adds the 6 GHz band.
Specialized Standards
802.11ah HaLow Sub-1 GHz (900 MHz) Long range, low power, low data rate. Ideal for IoT sensors and devices.
802.11s Mesh 2.4 / 5 / 6 GHz Defines how wireless devices can interconnect to create a mesh network.
802.11ad WiGig 60 GHz Extremely high speed, but very short range and cannot penetrate walls.
802.11p WAVE 5.9 GHz Wireless Access in Vehicular Environments. For car-to-car comms.