Matt Faulkner

Professional Goober

Notes about Radiowaves

You already know I love physics. I spend 1/3 of every workday thinking about some branch of physics. Wired and Wireless networking is built on these principles of physics and how do radio waves interact. So my love for networking crosses paths with my love for semi-trucks and trucking.

2.4 GHz Wireless

5 GHz Wireless

ADS-B Aircraft Tracking via Software Defined Radio

Bluetooth

Citizen Band Radio (CB)

CB Radios operate at 27 MHz in the High Frequency Band. The wave is 11 meters tall. 102” is 1/4th a full wave-length. 4-watts is the maximum legal output for a CB radio. Prior to 2021, all CB radios were based on AM technology. Modern radios can operate in AM and FM modes. FM offers higher audio quality over a shorter distance thanks to the increased bandwidth. There are 40 channels available to CB Radio users.

Channel Typical Use Frequency
1 General 26.965
2 General 26.975
3 General 26.985
4 4x4 Offroad 27.005
5 General 27.015
6 General 27.025
7 General 27.035
8 General 27.055
9 Emergency 27.065
10 Regional 27.075
11 General 27.085
12 General 27.105
13 Marine/RV 27.115
14 2WAY 27.125
15 General 27.135
16 General/SSB 27.155
17 North/South 27.165
18 General 27.175
19 East/West 27.185
20 General 27.205
21 Regional 27.215
22 General 27.225
23 General 27.255
24 General 27.235
25 General 27.245
26 General 27.265
27 General 27.275
28 General 27.285
29 General 27.295
30 General 27.305
31 General 27.315
32 General 27.325
33 General 27.335
34 General 27.345
35 General 27.355
36 General/SSB 27.365
37 General/SSB/LSB 27.375
38 General/SSB 27.385
39 General/SSB 27.395
40 General/SSB 27.405

Family Radio Service - FRS

FRS radios operate using FM technology at either 462 MHz or 467 MHz depending on the selected channel. These frequencies reside in the (UHF) Ultra-High Frequency Band. FRS radios are limited to 2-watts of power. FRS waves are approximately 65 centimeters (25.2 inches). 16 centimeters (6.3 inches) is 1/4th a full wave-length. There are 22 channels available to FRS radio users.

General Radio Mobility Service - GRMS

GRMS radios operate using FM technology at either 462 MHz or 467 MHz depending on the selected channel. These frequencies reside in the (UHF) Ultra-High Frequency Band. GRMS radios are limited to 4-watts of power. GRMS waves are approximately 65 centimeters (25.2 inches). 16 centimeters (6.3 inches) is 1/4th a full wave-length. There are 22 channels available to GRMS radio users.

2025

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2024

Javascript Cat!

how-to add oneko.js to the minimal-mistakes jekyll template.

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2023

Ditching WordPress

Method of Procedure for migrating from WordPress to plain HTML.

Mom Said Redefine Success

In High School I had one dream that stands out. Own a Porsche by the time I was 26. Looking back, I have no idea where this dream came from; because I was ra...

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2022

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2021

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