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SHULTZ ELECTRONICS
Antenna Cutting Charts
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Antenna Cutting Chart Page
We use a dremel with a cutting disc to cut
all our stainless steel antenna whips. If you don't have a dremel handy, you can
use a triangle or similar file and file a deep notch at the point where you want
to cut the antenna. Snap the antenna at the notch. Then file the antenna
smooth. When cutting any antenna rod, please take care and always wear eye
protection.
MAKE ALL CUTS SLIGHTLY LONGER THAN LISTED TO GIVE YOURSELF ROOM TO WORK WITH THE SWR ADJUSTMENTS.
VHF 1/2 Wave Cutting Chart
No Ground Plane
Not for the marine antenna
| Frequency MHz |
SWR |
Whip Length Inches |
Whip Length Millimeters |
| 132 |
1.23 |
49 7/16 |
1255 |
| 134 |
1.13 |
47 5/8 |
1210 |
| 136 |
1.10 |
46 1/4 |
1175 |
| 138 |
1.10 |
44 7/8 |
1140 |
| 140 |
1.13 |
44 |
1117 |
| 142 |
1.18 |
43 1/8 |
1095 |
| 144 |
1.20 |
42 1/2 |
1080 |
| 146 |
1.17 |
42 |
1067 |
| 148 |
1.09 |
41 1/8 |
1044 |
| 150 |
1.07 |
39 15/16 |
1015 |
| 152 |
1.02 |
38 13/16 |
986 |
| 154 |
1.03 |
37 11/16 |
957 |
| 156 |
1.06 |
36 9/16 |
928 |
| 158 |
1.10 |
35 3/4 |
908 |
| 160 |
1.09 |
34 13/16 |
885 |
| 162 |
1.09 |
34 1/4 |
870 |
| 164 |
1.10 |
33 9/16 |
853 |
| 166 |
1.16 |
32 7/8 |
835 |
| 168 |
1.26 |
32 |
813 |
| 170 |
1.35 |
31 5/16 |
795 |
| 172 |
1.42 |
30 9/16 |
777 |
| 174 |
1.44 |
29 15/16 |
760 |
VHF 5/8
Wave Cutting Chart
| Frequency MHz |
Whip Length Inches without spring |
Whip Length
Inches with spring |
| 134 |
52 3/4 |
50 3/16 |
| 136 |
51 3/4 |
49 13/16 |
| 138 |
51 |
48 7/16 |
| 140 |
49 15/16 |
47 1/4 |
| 142 |
49 |
46 1/8 |
| 144 |
48 1/16 |
45 1/4 |
| 146 |
47 1/4 |
44 7/16 |
| 148 |
46 1/4 |
43 3/8 |
| 150 |
45 1/2 |
42 11/16 |
| 152 |
44 13/16 |
41 15/16 |
| 154 |
44 |
41 1/8 |
| 156 |
43 1/8 |
40 3/8 |
| 158 |
42 7/16 |
39 1/2 |
| 160 |
41 3/4 |
38 3/4 |
| 162 |
40 15/16 |
38 |
| 164 |
40 3/8 |
37 3/8 |
| 166 |
39 11/16 |
36 11/16 |
| 168 |
39 |
36 |
| 170 |
38 3/8 |
35 7/16 |
| 172 |
37 13/16 |
34 5/8 |
| 174 |
37 3/16 |
34 1/4 |
MODEL
1100 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 |
UHF Gain Antenna Model
1177 445-470
Mhz
Hole and trunk lip mount
Measure from bottom of phasing coil out to desired freq.
length
| Frequency MHz |
No Spring Inches |
With Spring Inches |
| 445 |
9 1/16 230mm |
7 5/16 185mm |
| 450 |
8 3/4 222mm |
7 1/16 180mm |
| 455 |
8 7/16 214mm |
6 3/8 162mm |
| 460 |
8 1/16 205mm |
6 1/4 152mm |
| 465 |
7 5/8 134mm |
5 11/16 144mm |
| 470 |
7 3/16 133mm |
5 11/16 144mm |
VHF / UHF 1/4 Wave Cutting Chart
|
Frequency MHz
|
Whip Length Millimeter
|
Whip Length
Inches
|
| 136-144 |
520 |
20 1/2 |
| 144-150 |
488 |
19 3/16 |
| 150-160 |
457 |
18 |
| 160-170 |
430 |
16 15/16 |
| 400 |
168 |
6
5/8 |
| 410 |
165 |
6 1/2 |
| 420 |
162 |
6 3/8 |
| 430 |
160 |
6 5/16 |
| 440 |
153 |
6 |
| 450 |
148 |
5 13/16 |
| 460 |
144 |
5 11/16 |
| 470 |
142 |
5
9/16 |
| 480 |
138 |
5
7/16 |
| 490 |
135 |
5 5/16 |
| 500 |
130 |
5 1/8 |
| 510 |
128 |
5 1/16 |
| 800-900 |
70 |
2 3/4 |
| 870-940 |
62 |
2 7/16 |
VHF Low
Band 26.5 - 28 Mhz
Hole and trunk lip mount
| Frequency MHz |
Whip Length
No Spring |
Whip Length with Spring |
| 26.5 |
49 inch |
45 15/16 inch |
| 27.0 |
46 5/16 |
44 1/8 |
| 27.5 |
44 7/8 |
42 5/16 |
| 28.0 |
43 5/16 |
40 15/16 |
| 28.5 |
41 5/8 |
38 7/16 |
| 29.0 |
39 15/16 |
37 3/4 |
| 29.5 |
39 |
36 3/16 |
| 30.0 |
37 3/16 |
34 13/16 |
| 30.5 |
35 15/16 |
33 9/16 |
| 31.0 |
34 5/8 |
32 3/8 |
VHF Low
Band 29.5 - 35 Mhz
Hole and trunk lip mount
| Frequency MHz |
W/O Spring Inches |
With Spring Inches |
| 29.5 |
49 |
47 7/16 |
| 30 |
47 1/4 |
45 1/8 |
| 31 |
44 1/16 |
43 1/8 |
| 32 |
41 15/16 |
39 3/4 |
| 33 |
39 9/16 |
37 1/8 |
| 34 |
37 3/16 |
34 13/16 |
| 35 |
35 5/16 |
32 7/8 |
VHF Low Band 34
- 40 Mhz
Hole and trunk lip mount
| Frequency |
No Spring |
With Spring |
| 34 |
49" |
47 7/16" |
| 35 |
46 3/4" |
45 1/8" |
| 36 |
45 1/8" |
43 1/2" |
| 37 |
42 3/4" |
40 3/4" |
| 38 |
41 1/8" |
38 11/16" |
| 39 |
39 13/16" |
37 3/8" |
| 40 |
37 13/16" |
35 5/8" |
VHF Low Band 34
- 40 Mhz
Magnet mount
| Frequency |
No Spring |
With Spring |
| 34 |
49" |
47 7/8" |
| 35 |
49" |
47 1/4" |
| 36 |
47 5/8" |
45 1/8" |
| 37 |
44 7/8" |
42 7/8" |
| 38 |
42 3/4" |
40 7/8" |
| 39 |
40 3/4" |
38 3/8" |
| 40 |
38 3/4" |
36 5/8" |
VHF Low Band 40
- 50 Mhz
Hole or Trunk lip mount
| Frequency |
No Spring |
With Spring |
| 40 |
49" |
46 7/8" |
| 41 |
46 5/8" |
44 7/8" |
| 42 |
45 3/8" |
43 7/16" |
| 43 |
43 1/4" |
41 3/4" |
| 44 |
42" |
40 1/16" |
| 45 |
40 7/16" |
38 7/8" |
| 46 |
39 1/4" |
37 1/2" |
| 47 |
38 1/4" |
36 1/2" |
| 48 |
37 |
35 1/4" |
| 49 |
35 15/16" |
33 7/8" |
| 50 |
35 7/16" |
33 1/4" |
VHF Low Band 40
- 50 Mhz
Magnet mount
| Frequency |
No Spring |
With Spring |
| 40 |
49" |
49" |
| 41 |
49" |
48 15/16" |
| 42 |
48 1/16" |
47 1/4" |
| 43 |
46 3/8" |
45 1/2" |
| 44 |
44 11/16" |
43 11/16" |
| 45 |
43 1/8" |
42 5/16" |
| 46 |
41 3/4" |
40 13/16" |
| 47 |
40 3/8" |
39 3/8" |
| 48 |
39 3/16" |
38 1/8" |
| 49 |
38" |
36 13/16" |
| 50 |
36 13/16" |
35 5/8" |
VHF Low
Band 47 - 54 Mhz
Hole and trunk lip mount
| Frequency MHz |
Whip Length Hole Mount and Lip Mount |
Whip Length
Magnet Mount |
| 47 |
48 inch |
48 inch |
| 48 |
47 5/8 |
48 13/16 |
| 49 |
46 7/16 |
48 5/8 |
| 50 |
45 3/8 |
47 5/8 |
| 51 |
44 7/16 |
46 5/8 |
| 52 |
43 1/8 |
43 3/4 |
| 53 |
43 1/2 |
43 3/16 |
| 54 |
41 15/16 |
43 7/8 |
SHULTZ
ELECTRONICS
58 Smokey Crest Dr.
Morgantown, WV 26508
PHONE: 1-888-474-8589
email: sales@shultzie.com
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