AT2775-16 Aviation GPS Antenna | Dual L1/L2 Airborne GPS Antenna
- Aviation GPS Antenna
- Key Use Cases
- Specifications
- Mechanical Details
- Build Options
- Configuration Examples
class="ap26-at2775-eyebrow"Aviation GPS Antenna
AT2775-16 Aviation GPS Antenna
Dual-frequency L1/L2 airborne GPS antenna engineered for aircraft integration programs that require dependable RF performance, configurable build options, and repeatable installation characteristics.
Standard Model: AT2775-16W-TNCF-000-RG-36-NM Built to Order: 8 weeks AROApplication: Fixed-wing, rotorcraft, retrofit, MRO, OEM
Consultive Overview
The AT2775-16 is a low-profile, dual-frequency aviation GPS antenna designed for aircraft programs that need reliable operation across both L1 and L2 GPS bands in a housing suitable for airborne installation. This is not a commodity consumer antenna. It is better suited for engineering teams, avionics integrators, procurement departments, and fleet support teams that must evaluate a part based on performance, installation repeatability, qualification alignment, and configuration control.
For engineers, this antenna is a strong fit when the project requires a defined mechanical footprint, right-hand circular polarization, stable RF characteristics, and the ability to match connector, voltage, and gain requirements to the aircraft or subsystem design. It is especially relevant in applications where installation space is limited but performance consistency and environmental durability are critical to the program.
For buyers and sourcing teams, the AT2775-16 supports a more structured procurement process because the antenna family can be ordered in different configurations rather than forcing a one-build-only approach. That makes it useful for OEM production, retrofit programs, fleet standardization, replacement planning, and long-cycle aviation purchasing where exact build alignment matters.
Typical use cases include fixed-wing aircraft, rotorcraft, special mission platforms, avionics modernization projects, and MRO support environments where the antenna must fit an established integration plan and remain supportable over time.
Key Use Cases
OEM Aircraft Production
For production programs requiring a configurable L1/L2 aviation GPS antenna with a known installation footprint.
Retrofit & Avionics Upgrades
For modernization programs where the antenna must align with revised avionics and aircraft integration requirements.
Fleet Standardization
For organizations seeking a consistent antenna family across multiple aircraft or procurement cycles.
MRO & Replacement Planning
For maintenance teams that need a well-defined airborne GPS antenna for replenishment and support planning.
Specifications
| Parameter | Specification |
|---|---|
| Model | AT2775-16 Aviation GPS Antenna |
| Frequency | 1227 ±10 MHz and 1575 ±10 MHz |
| Polarization | Right Hand Circular |
| Axial Ratio | 3.0 dB max |
| Radiation Coverage | 4.0 dBic @ 0° -1.0 dBic @ 0° to 75° -2.5 dBic @ 75° to 80° -4.5 dBic @ 80° to 85° -7.5 dBic @ 90° |
| Amplifier Gain | Specify when ordering |
| Noise Figure | 3.0 dB max |
| Voltage | Specify when ordering |
| Load Current | 50 ±10 mA |
| Impedance | 50 ohms |
| VSWR | ≤ 2.0:1 |
| Band Rejection | 45 dB @ 50 MHz |
| Connector | Specify when ordering |
| Weight | 8.0 oz max |
| Material | A380 aluminum alloy casting; Ultem 2200 radome |
| Finish | Weatherable polymer |
| Altitude | 70,000 ft |
| Operating Temperature | -55°C to +85°C |
| TSO | C144 |
| Designed To | DO-160D |
| Environmental Category | E1–ABB(SCLMY)U(FF1)XSFDFSZAAAZ |
| Overall Diameter | 3.50 in |
| Body Height | 0.82 in |
| Lower Reference Height | 0.65 in |
| Phase Center | L1: 0.58 in (14.72 mm) L2: 0.48 in (12.19 mm) |
| Standard Model Part Number | AT2775-16W-TNCF-000-RG-36-NM |
| Lead Time | Built to Order – 8 weeks ARO |
Mechanical Details
| Feature | Details |
|---|---|
| Mounting Pattern | 4-hole pattern |
| Mounting Holes | 4X Ø .213 THRU, 82° countersink x .380 |
| Mounting Hardware | 4X mounting screw, 10-32 UNF-2A x 1.00, 100° flat head recessed cross, stainless steel |
| Hole Spacing | 2X 2.686 in and 2X 1.343 in |
| O-Ring | MS28775-133 |
| O-Ring Groove | 1.810 ID x .134 wide |
| Connector Clearance | Ø .56 in |
| Tolerance | .XX = .03 / .XXX = .010 |
Build Options
Part Number Format: AT2775-16 [Color] - [Connector] - 000 - [Voltage] - [Gain] - NM
| Part Number Position | Example | Meaning |
|---|---|---|
| Model Family | AT2775-16 | Antenna model series |
| Color Code | W | W = White S = Smoke Gray O = Olive Drab |
| Connector | TNCF | TNCF = TNC Female SMAF = SMA Female |
| Base Code | 000 | Standard configuration |
| Voltage Code | RG | 00 = Passive 3.3 = 3 VDC 05 = 5 VDC RG = 5 to 18 VDC XX = Other |
| Gain Code | 36 | 00 = Passive 26 = 26 dB 36 = 36 dB XX = Other |
| Suffix | NM | Standard build suffix |
Configuration Examples
| Example Part Number | Description |
|---|---|
| AT2775-16W-TNCF-000-RG-36-NM | White housing, TNC female connector, standard configuration, 5 to 18 VDC input, 36 dB gain |
| AT2775-16S-SMAF-000-05-26-NM | Smoke gray housing, SMA female connector, standard configuration, 5 VDC input, 26 dB gain |
| AT2775-16O-TNCF-000-00-00-NM | Olive drab housing, TNC female connector, passive configuration |
To reduce delays during engineering review, sourcing approval, and aircraft integration, we recommend confirming the following before release:
- Required connector interface
- Active or passive configuration
- Required supply voltage
- Required gain level
- Preferred finish color
- Aircraft installation and clearance requirements
Client Reviews
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