MIL-DTL-25707/3C
Inches
mm
Inches
mm
Inches
mm
.005
0.13
.177
4.50
1.63
41.4
.06
1.5
.180
4.57
2.69
68.3
.11
2.8
.188
4.78
6.81
173.0
.129
3.28
.193
4.90
7.500
190.50
.160
4.06
.332
8.43
8.250
209.55
.169
4.29
.66
16.8
66.50
1689.1
.97
24.6
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for general information only.
3. Unless otherwise specified, tolerances are ± .015 inch (± 0.38 mm) for three place decimals and
± .03 inch (± 0.76 mm) for two place decimals.
4. Finishes: Anodize ring in accordance with MIL-A-8625. Chemical conversion coating pan flange;
paint pan body with flat white polyurethane enamel or equivalent; radome is to be flat black
5. Fill antenna cavity with polyurethane foam, density as necessary to maintain structural rigidity,
radiation pattern as specified, and compliance to environmental requirements.
REQUIREMENTS:
Dimensions and construction: See figure 1.
Temperature operating range: -49°C to +96°C.
Frequency: 960 MHz to 1,220 MHz.
Impedance: 50 ohms, nominal.
VSWR of antenna:
960 MHz to 1,220 MHz, 1.8:1, maximum.
1,000 MHz to 1,100 MHz, 1.6:1, maximum.
VSWR of sampling probe: 960 MHz to 1,220 MHz, 1.5:1, maximum.
Power: 4 kW, peak; 100 watts, average.
Weight: Less than or equal to 18 ounces.
Part or Identifying Number (PIN): M25707/3-03.
Data list: The measured VSWR and attenuation data shall accompany each antenna when required by
contract.
2
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