DatasheetUHF/MUOS Satcom & VHF/UHF LOS Antenna
240 to 385 and 140 to 250 MHz
SKU: 21-50-61-1
Combining highly efficient “droopy dipoles” with a wide band, line-of-sight linear element, the 21-50-61-1 provides Hi-Lo angle UHF Satcom from a single connector plus a separate VHF/UHF element in a single antenna.
Element shaping and matching of the circularly polarized dipoles provides UHF Satcom coverage right through the UHF and MUOS band with useable radiation and gain typically from zenith down to 20 degrees or less above the horizon.
The robust design is suitable for helicopter and fixed wing aircraft operating up to 350 knots as well as vehicles, fixed sites and ships.
| 21-50-61-1 | |
| Model # | 21-50-61-1 |
| Brand | Cooper Antennas |
| Frequency |
Line of Sight (LOS) : 150 - 400 MHz Satcom : 240 - 385 MHz |
|
| Gain | LOS |
≥ 0 dBi (average) 150 - 250 MHz ≥ + 1.5 dBi (average) 251 - 400 MHz |
| Satcom |
+6 dBiC @ Zenith ≥ 0 dBiC @ all elevation angles above +25° |
|
| VSWR |
LOS: Satcom: |
≤ 2.5:1 ≤ 1.75:1 |
| Impedance (nominal) | 50 Ohms | |
| Power |
LOS Satcom |
50 Watts VHF, 200 Watts UHF 200 Watts |
| Polarization |
LOS Satcom |
Linear Right Hand Circular (maximum at zenith) |
| Antenna RF Connector |
LOS Satcom |
TNC Female N Female |
| Operational Temperature | -54°C to +71°C | |
| Overall Height | 12 inches (305mm) |
| Weight | 4.5 lbs (2kg) |
Finish
- Urethane Lusterless Grey FED-STD 595 36173
- Other finish options are available.
- Please specify finish required when ordering.
