• Home
  • GD Satcom C139M Ka-Band 1.39M High Wind Mobile Antenna




GD Satcom C139M Ka-Band 1.39M High Wind Mobile Antenna

(0) No Reviews yet
  • Aluminum/Carbon fiber construction
  • Low sidelobes, high E.I.R.P. capability
  • Low profile, precision alignment
  • GPS or jog controller options


SKU:

C139M Ka-Band Electrical
Frequency

    Receive

    Transmit


17.700 - 18.800 GHz

28.500 - 28.600 GHz
Antenna Gain at Midband

    Receive

    Transmit


46.50 dBi

50.10 dBi
VSWR (Rx/Tx) 1.30:1 (17.7 dB)
Beamwidth (in degrees at midband)

    -3 dB

      Receive

      Transmit

    -10 dB

      Receive

      Transmit




0.79°

0.52°



1.66°

1.09°
Sidelobe Performance Meets ITU-RS-580
Antenna Noise Temperature

    5° Elevation

    10° Elevation

    20° Elevation

    40° Elevation


121 K

86 K

67 K

57 K
Power Handling (total) 50 W CW
Cross Polarization Isolation (minimum)

    On Axis

      Receive

      Transmit

    Within 1.0 dB Beamwidth

      Receive

      Transmit




30 dB

30 dB



25 dB

25 dB
Port to Port Isolation (minimum)

    Rx/Tx (Rx frequency)

      Receive

      Transmit

    Tx/Rx (Tx frequency)

      Receive

      Transmit




0 dB

-85 dB



-85 dB

0 dB
RF Specifications 975-4240
Mechanical
Antenna Diameter 1.39 meters (4.6 ft)
Antenna Type Single offset
Reflector Construction Carbon fiber with white paint on surface
Mount Type Elevation over azimuth
Antenna Travel

    Elevation

    Azimuth


5° - 90° of reflector boresight

±180° continuous
Stow Height 19 in (48 cm)
Antenna Weight 240 lbs. (109 kg)
Integration Capability 100 lbs. (45 kg) on feed boom, axis crossover for rack mounting
Environmental
Wind Performance

(depends on vehicle capabilities)

    Pointing Loss of 0.8 dB

    Drive

    Survival

 




30 mph (48 km/h) gusting to 45 mph (72 km/h)

45 mph (72 km/h) gusting to 60 mph (97 km/h)

80 mph (128 km/h) any position

112 mph (180 km/h) at stow
Temperature Range

    Operational

    Survival


-5° to +130° F (-20° to +55° C)

-40° to +140° F (-40° to +60° C)
Rain Up to 4 in/h (10 cm/h)
Relative Humidity 0% to 100% with condensation
Solar Radiation 360 BTU/h/ft² (1000 Kcal/h/m²)
Radial Ice (survival) 1 in (2.5 cm)
Shock and Vibration Tolerant to conditions encountered during shipment by airplane, ship or truck. Atmospheric tolerant

to conditions encountered in coastal regions and/or heavily industrialized areas.

Ratings & Reviews

No reviews available

Be the first to Write a Review