DatasheetMulti-function UHF LOS/Satcom Antenna
225 to 450 MHz
SKU: 21-50-72
The 21-50-72 is a rugged multifunction UHF LOS plus UHF Satcom antenna designed for airborne applications. A high strength aerodynamic vertical shell houses a 225 - 450 MHz linear element that can be used for UHF line of sight “LOS” communications or UHF Satcom at low angles of elevation. This vertical shell also supports a circular horizontal disc containing a pair of cross dipoles connected to provide high angle, right hand circularly polarized UHF Satcom coverage.
- Hi and Lo angle UHF Satcom coverage
- EPLRS compatible
- Low height, just 9"
- Fixing holes compatible with 437S1-H
- Designed to MIL-STD-810 Environmental Requirements
| 21-50-72 | |
| Model # | 21-50-72 |
| Brand | Cooper Antennas |
| Frequency |
UHF Hi Angle : 240 - 400 MHz UHF Lo Angle : 225 - 450 MHz |
| Gain |
Hi Angle : +5 dBiC at Zenith Lo Angle : +2.0 dBi average @ 225 - 450 MHz |
| VSWR |
Hi Angle : ≤ 2.0:1 Lo Angle : ≤ 2.5:1 |
| Impedance (nominal) | 50 Ohms |
| Power | 200 Watts CW |
| Polarization |
UHF Hi Angle : Right Hand Circular UHF Lo Angle : Vertical |
| Radiation Isolation | Between Low and High Angle : ≥ 15 dB (mid band) |
| Antenna RF Connector |
UHF Hi Angle : N Female UHF Lo Angle : TNC Female |
| Overall Height | 9 inches (228mm) max |
| Disc Diameter | 15.9 inches (404mm) max |
| Weight | 9 lbs (4.09Kg) max |
| Mounting Hole Configuration | 8 holes each 0.208 - 0.234 dia. Inches (5.28 - 5.94mm) |
| ENVIRONMENTAL | |
| Environmental |
MIL-E-5400 Class 2 MIL-STD-810 |
Finish
- Antenna - Gloss White
- Baseplate - Unpainted, Alocrom
- Other finish options are available.
- Please specify finish required when ordering.
