DatasheetMulti-Band Satcom & Communications Antenna
240 to 400 MHz & 30 to 512 MHz
SKU: 21-50-70
The 21-50-70 is a rugged multifunction VHF/UHF, AM-FM, (LOS) and Satcom (BLOS) antenna designed for airborne, 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 “BLOS” at low angles of elevation. This vertical shell also supports a “Frisbee” shape horizontal element containing a pair of cross dipoles, connected to provide high angle, right hand circularly polarized UHF Satcom coverage.
The antenna is capable of operating in temperatures of -40ºC to 120ºC.
- Low Height
- 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
- Footprint fixings compatible with 437S1-H
| 21-50-70 | |
| Model # | 21-50-70 |
| Brand | Cooper Antennas |
| Frequency |
Hi Angle (BLOS): Lo Angle (LOS): |
240 - 400 MHz 30 - 512 MHz |
| Gain |
Hi Angle (BLOS) |
+6 dBiC @ zenith |
| Lo Angle (LOS) |
-26 dBi @ 30 MHz -12 dBi @ 88 MHz -8 dBi average 118 -174 MHz +1 dBi average 225 - 400 MHz 0 dBi average 400 - 512 MHz |
|
| VSWR |
Hi Angle Lo Angle |
≤ 2.0:1 ≤ 2.5:1 |
| Impedance (nominal) | 50 Ohms for both ports | |
| Power | Hi Angle (BLOS): | 100 Watts CW |
| Lo Angle (LOS): |
50 Watts (30-88 MHz), 50 Watts (118-175 MHz), 100 Watts (225-512 MHz) |
|
| Polarization |
Hi Angle (BLOS): Lo Angle (LOS): |
Right Hand Circular Vertical, Linear |
| Antenna RF Connector |
Hi Angle (BLOS): Lo Angle (LOS) |
N Female TNC Female |
| Height | 8.2 inches (208.3 mm) max |
| Disc diameter | 15.9 inches (404 mm) max |
| Weight | 8.16 lbs (3.7kg) max |
| Mounting Hole Configuration | 8 holes each 0.208 - 0.234 dia. Inches (5.28 - 5.94mm) |
| 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.
