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Trimble Zephyr L1 L2 GPS GNSS Antenna 39105-00

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Trimble Zephyr GPS Antenna P/N: 39105-00
Item ID: X3720
Condition: Refurbished
Warranty: 90 Day Exchange


* Trimble Zephyr GPS Antenna P/N: 39105-00 [ID- X3720]


Trimble Zephyr Antenna

New Antenna Technology from Trimble

The Trimble Zephyr and Zephyr Geodetic antennas are two new types of survey-grade, dual-frequency, GPS antenna. They are designed to match the performance of the choke ring antenna, while being smaller, lighter, and significantly less expensive.

Both antennas are the result of intensive research and development, and utilize recent innovations in high performance GPS antenna technology, for which patents have been issued to Trimble. The new antennas incorporate major advancements in:
  • Radio frequency antenna design
  • Advanced materials technology
  • High precision manufacturing techniques
  • Trimble Stealth Ground Plane technology
The result is antenna phase center (APC) repeatability and multipath resistance comparable to the choke ringóand improved tracking of low elevation satellites and in difficult environments.

The use of advanced materials enables the Trimble Zephyr and Zephyr Geodetic antennas to be extremely compact and lightweight. Although the antenna element and low noise amplifiers used today will need to be modified in order to be compatible with the future L5 second civil frequency, the underlying design of the new Trimble Stealth Ground Plane is independent of frequency. This will make it much more effective for use with the new frequency than more conventional ground planes.

Patented Antenna Element Design Achieves Sub-millimeter Repeatability
The GPS antenna element is the part of an antenna that is sensitive to energy transmitted from GPS. For precise GPS surveying, this element is usually a flat piece of metal called a ìpatchî antenna. It is usually round or approximately square, and its dimensions make it sensitive to the GPS frequency being tracked. When a GPS receiver/antenna combination is tracking satellites and making code and carrier phase measurements, the actual points in space between which those measurements are taken are the instantaneous phase centers of the GPS satellite and GPS receiver antennas.

Dimensions: 6" diameter x 2.25" maximum depth
Weight: 1 lb
Operating temperature range -40 to +70 C
100% humidity proof, fully sealed
Shock tested for a drop of 2 m onto concrete
Vibration tested to MIL-STD-810
4-point antenna feed for sub-millimeter phase center repeatability.
Integral Low Noise Amplifier
50 dB antenna gain