View PDF brochure for Multi-Band Satcom & Communications AntennaDatasheet

Multi-Band Satcom & Communications Antenna

240 to 400 MHz & 30 to 512 MHz

SKU: 21-50-70

Contact us for latest price
Sold Out - Backorder Available


Calculate Shipping



Freight quote - $0.00
As the size and weight is not normally known we use several freight carriers to ensure you get the best price. Complete your order or quote and we will get back to you with the available freight options.

Multi-Band Satcom & Communications Antenna

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.
Datasheet:

More From This Category


Airborn Stub Antenna

Airborn Stub Antenna

SKU: 21-50-30

Airborne AIS Blade Antenna

Airborne AIS Blade Antenna

SKU: 21-20-60

Airborne Blade Antenna

Airborne Blade Antenna

SKU: 21-30-55

Airborne Blade Antenna

Airborne Blade Antenna

SKU: 21-30-176

Airborne IFF Interrogator Antenna

Airborne IFF Interrogator Antenna

SKU: 21-40-66

Airborne Stub Antenna

Airborne Stub Antenna

SKU: 21-20-12

Aircraft Static Discharger

Aircraft Static Discharger

SKU: 21-90-02