ALWAYS use a quality standing wave meter or
antenna analyzer to check the
final installed system!
|
| |
|
VHF 5/8 Wave Cutting
Chart (3db)
|
Frequency MHz |
Whip Length Inches |
| 143 |
49 1/2 |
| 145 |
48 3/4 |
| 147 |
47 5/8 |
| 149 |
46 7/8 |
| 151 |
45 15/16 |
| 153 |
45 1/16 |
| 155 |
44 3/16 |
| 157 |
43 5/16 |
| 159 |
42 5/8 |
| 161 |
42 |
| 163 |
41 7/16 |
| 165 |
40 9/16 |
| 167 |
39 3/4 |
| 169 |
39 |
| 171 |
38 3/16 |
| 173 |
37 3/8 |
|
|
1DB UNITY GAIN MAGNET
MOUNT
| Frequency MHz |
Whip Length Inches |
| 136 |
20.47 |
| 137 |
20.35 |
| 138 |
20.28 |
| 139 |
20.08 |
| 140 |
19.88 |
| 142 |
19.61 |
| 144 |
19.29 |
| 146 |
19.17 |
| 148 |
19.06 |
| 150 |
18.90 |
| 152 |
18.78 |
| 154 |
18.66 |
| 156 |
18.43 |
| 158 |
18.11 |
| 160 |
17.72 |
| 162 |
17.52 |
| 164 |
17.17 |
| 166 |
16.93 |
| 168 |
16.73 |
| 170 |
16.46 |
| 172 |
16.26 |
| 174 |
16.06 |
|
|
VHF / UHF 1/4 Wave Rough
Cutting Chart
| Frequency MHz |
Whip Length Inches |
|
136-144 |
20 1/2 |
|
144-150 |
19 3/16 |
| 150-160 |
18 |
| 160-170 |
16 15/16 |
| 400 |
6 5/8 |
| 410 |
6 1/2 |
| 420 |
6 3/8 |
| 430 |
6 5/16 |
| 440 |
6 |
| 450 |
5 13/16 |
| 460 |
5 11/16 |
| 470 |
5 9/16 |
| 480 |
5 7/16 |
| 490 |
5 5/16 |
| 500 |
5 1/8 |
| 510 |
5 1/16 |
| 800-900 |
2 3/4 |
| 870-940 |
2 7/16 |
|
|
VHF 1/2 Wave Cutting
Chart - No Ground Plane (2db)
|
Frequency MHz |
Whip Length Inches |
| 132 |
49 7/16 |
| 134 |
47 5/8 |
| 136 |
46 1/4 |
| 138 |
44 7/8 |
| 140 |
44 |
| 142 |
43 1/8 |
| 144 |
42 1/2 |
| 146 |
42 |
| 148 |
41 1/8 |
| 150 |
39 15/16 |
| 152 |
38 13/16 |
| 154 |
37 11/16 |
| 156 |
36 9/16 |
| 158 |
35 3/4 |
| 160 |
34 13/16 |
| 162 |
34 1/4 |
| 164 |
33 9/16 |
| 166 |
32 7/8 |
| 168 |
32 |
| 170 |
31 5/16 |
| 172 |
30 9/16 |
| 174 |
29 15/16 |
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
