013-00235-00 – GARMIN GA35 GPS WAAS TSO Antenna
Overview
The GARMIN GA35 is an external, active GPS antenna designed to support Wide Area Augmentation System (WAAS) capabilities for panel-mount GPS systems. Its low-profile, teardrop design ensures excellent reception and aerodynamic efficiency, making it suitable for various aircraft installations.
Key Features
- WAAS Compatibility: Enhances GPS accuracy by supporting WAAS, providing improved positional data for navigation systems.
- Durable Design: Built to withstand harsh environmental conditions encountered during flight operations.
- Easy Installation: Shares the same mounting hole pattern as the GA 56 antenna, facilitating straightforward upgrades or replacements.
Technical Specifications
- Dimensions: 4.68 x 3.00 x 0.81 inches.
- Weight: Approximately 0.47 lbs (0.21 kg).
- Frequency Range: 1575 ± 10 MHz.
- Gain: 27 ± 0.5 dB at +25°C nominal, with ±2.0 dB variation over temperature.
- Noise Figure: Maximum 2.5 dB over temperature.
- Supply Voltage: 4.5 VDC ± 0.5 VDC.
- Supply Current: Maximum 60 mA.
- Output Connector: Female TNC.
Applications
The GA35 antenna is suitable for all WAAS-capable panel-mount GPS systems, ensuring enhanced navigation accuracy and reliability.
Installation Considerations
- Mounting Location: Install the antenna on a flat surface of the aircraft's fuselage, as close to level as possible with respect to the normal cruise flight attitude.
- Separation from Other Antennas: Maintain a minimum distance of two feet from any VHF COM antenna or other antennas that may emit harmonic interference at the L1 frequency of 1575.42 MHz.Garmin
- Grounding: Ensure proper grounding through the mounting hardware to maintain signal integrity.
- Sealant Use: Avoid using construction-grade RTV sealants or those containing acetic acid, as they may damage the electrical connections to the antenna.
Note: For detailed installation instructions, refer to the GA 35 Antenna Installation Instructions manual.
Note: For comprehensive installation procedures and maintenance guidelines, always consult official GARMIN documentation and certified aviation professionals.
