1. Specification
| A. Electrical Characteristics | |
| Frequency | 235-283MHz |
| Impedance | 50 Ohm |
| S.W.R. | <4 |
| Antenna Gain | 0dBi |
| Efficiency | ≈47% |
| Polarization | Linear |
| Horizontal Beamwidth | 360° |
| Vertical Beamwidth | 58-66° |
| Max Power | 50W |
| B. Material & Mechanical Characteristics | |
| Connector Type | N -J |
| Dimension | Φ25*380mm |
| Weight | 0.21Kg |
| Radome material | Fiberglass Black |
| C. Environmental | |
| Operation Temperature | - 40 ˚C ~ + 80 ˚C |
| Storage Temperature | - 40 ˚C ~ + 80 ˚C |
| Rated Wind Velocity | 36.9m/s |
| Lighting Protection | DC Ground |
2. Antenna - S Parameter Test Data
2.1 VSWR

2.2 Total Efficiency & Gain:
|
Frequency(MHz) |
Gain(dBi) |
Efficiency(%) |
|
235 |
-0.6 |
46.3 |
|
240 |
-0.3 |
48.2 |
|
245 |
0.0 |
51.2 |
|
250 |
0.0 |
51.1 |
|
255 |
-0.2 |
49.0 |
|
260 |
-0.5 |
44.7 |
|
265 |
-0.4 |
44.7 |
|
270 |
-0.5 |
43.5 |
|
275 |
0.0 |
47.7 |
|
280 |
-0.3 |
43.5 |
|
283 |
-0.1 |
46.0 |
| 3D | 2D-Horizontal | 2D-Vertical | |
| 235MHz | ![]() |
![]() |
![]() |
| 260MHz | ![]() |
![]() |
![]() |
| 283MHz | ![]() |
![]() |
![]() |