DatasheetMulti-band Satcom, Communications & GPS Antenna
240 to 400 MHz, 30 to 512 MHz & L1/L2 GPS
SKU: 21-50-129
The 21-50-129 is a rugged multifunction VHF/UHF Satcom and GPS antenna designed for helicopter and vehicular applications. A high strength vertical shell houses 30 - 512MHz linear elements that can be used for V/ UHF line of sight “LOS” communications or UHF Satcom at low angles of elevation. An active GPS element, DC powered through the coaxial connector provides circular polarization for both L1 & L2 frequency bands. The vertical shell also supports a pair of horizontal elements containing crossed dipoles connected to provide high angle, circularly polarized UHF Satcom coverage.
- Suitable for helicopter and vehicular installations.
- Light weight/ high strength
- Fully environmentally sealed
- Hi and Lo angle UHF Satcom coverage plus Active GPS
- Full 30-512 MHz LOS communications
- AN/ARC-210, AN/ARC-231, DAGR compatible
- Designed to MIL-STD-810 environmental Conditions.
- 200 watt power handling for UHF Satcom
| 21-50-129 | |
| Model # | 21-50-129 |
| Brand | Cooper Antennas |
| Frequency |
Hi Angle : 240 - 400 MHz Lo Angle : 30 - 88 MHz, 108 - 174 MHz & 225 - 512MHz GPS: 1565-1586/ 1217-1238 MHz |
|
| Gain |
Hi Angle Lo Angle
GPS
|
+6 dBiC @ zenith ≥ -22 dBi @30 MHz ≥ -8 dBi @88 MHz ≥ -2 dBi (average) over 118 -174 MHz ≥ 0 dBi to +3 dBi over 225 - 512 MHz ≥ 33 dB (pre-amp) ≥ +3dBiC @ Zenith (Antenna) |
| VSWR |
Hi Angle Lo Angle
GPS |
≤ 1.75:1 ≤ 2.5:1 (30 - 450 MHz) ≤ 3.0:1 (450 - 512 MHz) ≤ 1.5:1 (Antenna) |
| Impedance (nominal) | 50 Ohms | |
| Power |
Hi Angle Lo Angle
GPS |
200 Watts (240 - 400 MHz ) 50 Watts (30 – 88 MHz) 50 Watts (118 - 174 MHz ) 200 Watts (225 - 512 MHz) 1 watt |
| Polarization |
Hi Angle Lo Angle GPS |
Right Hand Circular Vertical, Linear Right hand Circular |
| Antenna RF Connector |
Hi Angle Lo Angle GPS |
N Female TNC Female TNC Female |
| DC Power for GPS Pre-Amp | 2.5 - 24 V < 50 milliamps Typical | |
| Height | 12 inches (305mm) |
| Wingspan | 20 inches max (508mm) |
| Weight | 3.5 lbs (1.6 kg) |
| Fixing Holes | 4 x Ø 0.205 inches (5mm) holes, counter bore Ø 0.43 inch (10.9mm) |
Finish
- Antenna - Urethane lusterless Black
- Other finish options are available.
- Please specify finish required when ordering.
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