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Q169 Series Spiral Antenna

The Q169 Series antennas are amplitude tracked on a 100% basis versus factory standards, ensuring interchangeability at the system level. In addition, the axial ratio is extremely low (considering the low frequency cutoff versus the nominal 6” diameter of the antenna) over the majority of a hemisphere. Together, these characteristics make the Q169 Series of antennas an ideal element for array and DF applications.

Q169 Series Antenna Specifications

Electrical
Frequency range 0.5 - 4.0 GHz
VSWR 2.5:1 nom
Gain See graph
Gain tracking, on axis ±2dB
Polarization
  Q169-1
  Q169-2
 
RHCP
LHCP
Beamwidth 80 degrees nom
Axial ratio boresight 2 dB max
Beam squint ± 6 degrees max
Power handling 1 watt CW
Mechanical
Connector SMA Female
Weight 0.35 lbs max
Finish
  -1-1, -2-1
 
Gray, color 36231 per FED-STD-595
L3Harris Q169 Gain Graph

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