Overview
The 25316 is a cross-Yagi antenna manufactured for our TX321, TX320, TX312, TX325, and SAT HDR GOES transmitters. You may also use it with the EUMETSAT and some GOES transmitters manufactured by other companies. This high-gain, robust, lightweight antenna provides you with optimum performance for all fixed-location, satellite data collection platforms (DCPs). It consists of two quadrature-phased, five-element Yagi antennae, mounted on a common aluminum boom. The antenna’s screw-in elements facilitate your shipping, storage, and field installation.
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Detailed Description
Yagi Antennas
Yagi antennas are a type of directional antenna that consists of a rod pointed in the direction of the transmission/reception and several cross bars oriented at a 90° angle to the main rod. The rod's length and spacing are optimized to transmit and receive transmission in the desired frequency band.
Note: On March 10 2009 the 25316 11-dBi Yagi antenna replaced the 17751 11-dBi Yagi antenna. The 17751 antenna had replaced the 12261 9-dBi Yagi antenna on August 20, 2004.
Specifications
| Dimensions | 99.06 x 15.88 x 15.88 cm (39.0 x 6.25 x 6.25 in.) |
| Weight | 2.06 kg (4.55 lb) |
Electrical |
|
| Frequency | 401.8 MHz (nominal) |
| Bandwidth | 2 MHz (minimum) |
| Input Power | 15 W (maximum) |
| Input Impedance | 50 Ω (nominal) |
| SWR | 1.50 (maximum) |
| Directivity | +14.0 dBic (nominal) |
| Gain | 11.0 dBi |
| Polarization | Right-hand circular |
| Half Power Beam Width | 47° (nominal) |
| Connector | Type N female |
Environmental |
|
| Wind | 100 knots |
| Ice & Snow | 100 lb/ft2 |
| Rain | 5 in./hr |
| Temperature | -65° to +65°C |
| Relative Humidity | 0 to 100% |
| Altitude | -1000 to +15,000 ft MSL |
| Lightning | Antenna and elements at DC ground |
Mechanical |
|
| Pipe Mounting | 3.8 to 6.0 cm (1.5 to 2.375 in.) diameter |
| Azimuth Adjustment | 360° |
Compatibility
Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.
Communication Devices
| Product | Compatible | Note |
|---|---|---|
| OMNISAT-M (retired) | ||
| SAT HDR GOES (retired) | ||
| TX312 (retired) | ||
| TX320 (retired) | ||
| TX321 (retired) | ||
| TX325 | ||
| TX326 |
Additional Compatibility Information
Transmitters
The 25316 Yagi antenna may also be used with EUMETSAT satellite transmitters and some GOES transmitters manufactured by other companies.
Antenna Cable
The COAXNTN cable is used to attach the antenna to the transmitter.
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Compliance
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