There are several standard frequencies for two-way radios that are used on job sites, warehouses, commercial areas, etc.
To make life a little easier for the user, the frequencies are usually associated with a colored dot that is on the outside of the radio. If you want to talk between two radios they must be on the same frequency, which means they must have the same colored dot.
Here is a listing of the colored dots and their exact frequencies (in MHz)
| Red | 151.625 MHz |
| Purple | 151.955 MHz |
| Blue | 154.570 MHz |
| Green | 154.600 MHz |
| White | 462.575 MHz, GMRS (Class A CB) |
| Black | 462.625 MHz |
| Orange | 462.675 MHz |
| Brown | 464.500 MHz |
| Yellow | 464.550 MHz |
Additional letter and shape designations indicate other frequencies
| “J” | 467.7625 MHz |
| “K” | 467.8125 MHz |
| Silver Star | 467.850 MHz |
| Gold Star | 467.875 MHz |
| Red Star | 467.900 MHz |
| Blue Star | 467.925 MHz |
The Family Radio Service “FRS” is comprised of 14 channels allocated by the FCC to be used for non-commercial purposes, without the need for licensing.
| Channel | Frequency (MHz) |
| 1 | 462.5625 |
| 2 | 462.5875 |
| 3 | 462.6125 |
| 4 | 462.6375 |
| 5 | 462.6625 |
| 6 | 462.6875 |
| 7 | 462.7125 |
| 8 | 467.5625 |
| 9 | 467.5875 |
| 10 | 467.6125 |
| 11 | 467.6375 |
| 12 | 467.6625 |
| 13 | 467.6875 |
| 14 | 467.7125 |