DatasheetMulti-Band Satcom & Communications Antenna
240 to 400 MHz & 30 to 512 MHz
SKU: 21-50-75
The 21-50-75 is a rugged multifunction VHF/UHF, AM-FM, LOS and Satcom antenna designed for airborne, ground and shipborne applications. A high strength aerodynamic vertical shell houses a 30 - 512 MHz linear element that can be used for V/UHF line of sight “LOS” communications or UHF Satcom at low angles of elevation. This vertical shell also supports a “BatWing” shape horizontal element containing a pair of cross dipoles, connected to provide high angle, right hand circularly polarized UHF Satcom coverage.
- Aerodynamic design
- High strength
- Fully environmentally sealed
- Hi and Lo angle UHF Satcom coverage
- Full 30 - 512 MHz LOS communications
- PRC-117G, AN/ARC-210 & AN/ARC-231 compatible
- Low wingspan minimizes loading on aircraft structure
- Drop on replacement for DM C 34B
| 21-50-75 | |
| Model # | 21-50-75 |
| Brand | Cooper Antennas |
| Frequency |
Hi Angle Lo Angle |
240 - 400 MHz 30 - 512 MHz |
| Gain |
Hi Angle Lo Angle
|
+6 dBiC -20 dBi @ 30 MHz -8.0 dBi @ 88 MHz -5.0 dBi average @ 118 -174 MHz +2.0 dBi average @ 225 - 512 MHz |
| VSWR |
Hi Angle Lo Angle |
≤ 2.0:1 ≤ 2.5:1 |
| Impedance (nominal) | 50 Ohms for both ports | |
| Power |
Hi Angle Lo Angle
|
200 Watts CW 50 Watts (30-88 MHz) 50 Watts (118-175 MHz) 200 Watts (225-512 MHz) |
| Polarization |
Hi Angle Lo Angle |
Right Hand Circular Vertical, Linear |
| Antenna RF Connector |
Hi Angle Lo Angle |
N Female TNC Female |
| Height | 12 inches (305mm) max |
| Wingspan | 13 inches (330mm) max |
| Weight | 12 lbs (5.4kg) |
| Fixing Holes | 18 no. of holes each 0.213 + 0.007/-0.000 dia. (inches) |
| ENVIRONMENTAL | |
| Designed to Environmental |
MIL-E-5400 Class 2 MIL-STD-810 |
Finish
- Antenna - Urethane Lusterless Grey FED-STD 595 36173
- Baseplate - Unpainted, Alocrom
- Other finish options are available.
- Please specify finish required when ordering.
