DatasheetUHF Satcom Antenna
225 to 400 MHz
SKU: 20-30-29VM
The 20-30-29VM and the 20-30-29VM/1 is a combined Hi-Lo angle UHF Satcom Antenna designed for installation on military vehicle roof, shelter or housing via a 4 hole mounting plate. The only difference between 20-30-29VM and the 20-30-29VM/1 is that in the 20-30-29VM the coaxial connectors are fitted to the bottom of the antenna base and in the 20-30-29VM/1 they are fitted to the side of the base.
The antenna comprises two co-located elements; a circularly polarized cross-dipole and a linearly polarized broadband monopole. The two elements have separate RF feeds and by manual selection of either, full hemispheric pattern coverage is provided.
The Lo angle is intended for elevation angles up to about 45° and the Hi angle for approximately 45° to zenith.
Construction is from rugged fiberglass, foam-filled for structural integrity and prevention of
- Suitable for vehicular, shipborne and shelter installations
- Robust Construction
- Hemispherical radiation pattern coverage with separate Hi and Lo angle elements
- All Weather operation
- 200 Watts CW Power handling
- Designed to MIL-STD-810 environmental requirements
- 4 hole mounting plate
| 20-30-29VM | |
| Model # | 20-30-29VM & VM/1 |
| Brand | Cooper Antennas |
| Frequency |
Lo Angle Hi Angle |
225 - 400 MHz 225 - 400 MHz |
| Gain |
Lo Angle Hi Angle |
+3 dBiL (Typical) +8 dBiC (Typical) |
| VSWR |
Lo Angle Hi Angle |
≤ 3.0:1 ≤ 1.5:1
|
| Impedance (nominal) | 50 Ohms | |
| Power | 200 Watts | |
| Polarization |
Lo Angle Hi Angle |
Linear Right Hand Circular (maximum at zenith) |
| Operational Temperature | -54°C to +71°C | |
| Antenna RF Connector |
Lo Angle Hi Angle |
TNC Female N Female |
| Overall Height | 12.5 inches (318mm) |
| Element height | 11.5 inches (292mm) |
| Dipole span | 20 inches (508mm) |
| Weight | 3 lbs (1.4kg) |
Finish
- Antenna - Urethane lusterless Black
- Other finish options are available.
- Please specify finish required when ordering.
