34-Meter High-Efficiency (HEF) Antenna
The 34-meter HEF antenna incorporates recent advances in antenna design
and mechanics. The mount is an azimuth-elevation type and operates in both
axes at 0.40 degree/second.
The reflector surface is precision-shaped for maximum signal-gathering
capability.
34-Meter Beam Waveguide (BWG) Antennas
The design of the 34-meter BWG antenna is based on that of the 34-meter High-Efficiency antenna,
and provides the same basic performance parameters.
A major change in the design is the addition of five precision radio frequency mirrors that reflect radio
signals along a beam-waveguide tube from the vertex of the antenna to the below-ground pedestal equipment
room. This design allows :
- The relocation of sensitive electronics from a feed cone in the center of
the main reflector to the pedestal equipment room
- Easier access for maintenance and modification (such as adding new
electronics for transmitting and receiving at additional radio frequency bands when needed to support future
deep space missions.
34-meter beam waveguide antennas have been built at all three deep space communications complexes,
three at Goldstone, and one each in
Canberra and Madrid.
