The frequencies are chosen from the CB band, the VHF low Band, The 6 meter Ham band, The Aircraft Band, The VHF High Band, The UHF Band, and the trunk band. As you can see there is a difference in lengths making scanning such a challenge.
| Frequency in MHz | Wavelength in Meters | Wavelength in Feet | Quarter wavelength in Feet | Quarter wavelength in Inches |
|
27 |
11.11111 |
36.45377 |
9.113444 |
109.3613 |
|
33 |
9.090909 |
29.82581 |
7.456454 |
89.47745 |
|
48 |
6.25 |
20.50524 |
5.126312 |
61.51574 |
|
52 |
5.769230 |
18.92792 |
4.731980 |
56.78376 |
|
123 |
2.439024 |
8.002048 |
2.000512 |
24.00614 |
|
128 |
2.34375 |
7.689468 |
1.922367 |
23.06840 |
|
154 |
1.948051 |
6.391246 |
1.597811 |
19.17373 |
|
156 |
1.923076 |
6.309307 |
1.577326 |
18.92792 |
|
157 |
1.910828 |
6.269120 |
1.567280 |
18.80736 |
|
453 |
0.662251 |
2.172741 |
0.543185 |
6.518224 |
|
463 |
0.647948 |
2.125814 |
0.531453 |
6.377442 |
|
860 |
0.348837 |
1.144479 |
0.286119 |
3.433437 |