( Manufacturer Part Number: 011-00455-90 ), ( Part Type: Transponder ), ( Warranty: 30 Day ), ( Country Of Origin: United States )
Review GARMIN Modes Ads b Transponder P/n Faa Form fits GTX
The **Garmin GTX 330DES ADS-B Transponder (Part Number: 011-00455-90, Model Number: 8130-3)** is a cutting-edge, all-in-one aviation transponder and ADS-B (Automatic Dependent Surveillance-Broadcast) solution designed to meet the latest FAA and international aviation regulations while delivering unparalleled situational awareness for pilots. Engineered with Garmin s signature precision and reliability, this compact yet powerful unit seamlessly integrates ADS-B Out, Mode S, and traditional transponder functionality into a single, streamlined package, eliminating the need for separate equipment. The GTX 330DES operates on the 1090 MHz frequency band, providing enhanced surveillance accuracy and compatibility with NextGen air traffic control systems, while also supporting 978 MHz UAT ADS-B Out for broader coverage, particularly in regions where 1090 MHz infrastructure is limited. Its lightweight design and compact form factor make it ideal for installation in general aviation aircraft, including single-engine and multi-engine airplanes, where space and weight efficiency are critical. The transponder features a robust, weather-resistant enclosure and is fully compliant with the FAA s ADS-B mandate, ensuring pilots remain in full compliance with airspace requirements while enjoying the benefits of real-time traffic and weather data on compatible Garmin avionics, such as the G3X or G5 panels. With its intuitive interface and seamless integration with Garmin s flight management systems, the GTX 330DES simplifies cockpit complexity while enhancing safety through continuous surveillance updates. Whether navigating busy terminal areas or remote flight paths, this transponder delivers the accuracy, reliability, and regulatory compliance pilots demand, making it an indispensable upgrade for modern general aviation aircraft.
### **Pros and Cons of buying a Garmin GTX 330DES ADS-B Transponder (P/N 8130-3, Model 011-00455-90)**
#### **Pros**
1. **ADS-B Out Compliance**
The GTX 330DES is fully compliant with FAA and international ADS-B requirements, ensuring you can operate in controlled airspace without relying on secondary surveillance radar (SSR). This is mandatory in the U.S. for certain aircraft by 2020 (though enforcement varies) and is increasingly required globally.
2. **ADS-B In Capability**
Unlike some basic transponders, the GTX 330DES includes ADS-B In, which provides traffic awareness and weather updates from FAA databases. This enhances situational awareness, especially in busy airspace or during poor visibility.
3. **Lightning Protection**
The unit is designed with built-in lightning protection, reducing the risk of damage from electrical storms a critical feature for general aviation aircraft.
4. **Easy Installation**
Garmin units are known for their straightforward installation processes. The GTX 330DES is designed to integrate with existing avionics, though wiring and antenna placement should be done carefully.
5. **Reliability and Brand Reputation**
Garmin is a trusted name in aviation electronics, with a strong track record of durability and customer support. The GTX 330DES is a mid-range model that balances performance and cost.
6. **Compatibility with Garmin Avionics**
If you already have Garmin equipment (e.g., G3X, GFC 700), the GTX 330DES integrates seamlessly with their systems, providing a cohesive flight deck experience.
7. **Long-Term Value**
As ADS-B mandates expand globally, having a compliant transponder now ensures your aircraft remains airworthy without costly retrofits later.
8. **Optional Traffic and Weather Integration**
While ADS-B In provides basic traffic and weather, some Garmin systems (like the G3X) can display this data on the primary flight display, enhancing situational awareness.
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#### **Cons**
1. **Cost**
The GTX 330DES is more expensive than basic Mode S transponders (e.g., non-ADS-B units). For aircraft that don t require ADS-B (e.g., some experimental or ultralight categories), this may be overkill. Prices typically range from **$3,500 to $4,500** installed, depending on labor and additional components.
2. **ADS-B In Limitations**
While ADS-B In provides traffic and weather, it relies on ground-based FAA databases. In remote areas or over oceans, data may be sparse or unavailable. For true all-weather traffic awareness, a separate ADS-B In receiver (like the Garmin GTX 335) might be preferable.
3. **Antenna Requirements**
Proper antenna placement is critical for ADS-B performance. Poor placement can lead to weak signals or false readings. This may require additional installation work or modifications to the aircraft.
4. **Software Dependencies**
The GTX 330DES relies on Garmin s software for updates. If the aircraft s avionics are outdated, compatibility issues may arise, though Garmin generally supports newer systems.
5. **Not a Full Traffic Collision Avoidance System (TCAS)**
ADS-B In provides traffic awareness but lacks the collision avoidance alerts of a TCAS system. For pilots who fly in high-density airspace, a TCAS (e.g., Garmin GTX 335 with TCAS) may be more comprehensive.
6. **Potential for Overkill**
If your aircraft rarely flies in controlled airspace or you primarily operate in unrestricted VFR conditions, the benefits of ADS-B may not justify the cost.
7. **Installation Complexity**
While Garmin units are user-friendly, improper installation (e.g., wiring, antenna placement, or grounding) can lead to malfunctions. This may require professional installation, adding to the total cost.
8. **Limited Upgrade Path**
Unlike some avionics systems, the GTX 330DES is a dedicated transponder. If you later need more advanced features (e.g., enhanced traffic display), you may need to upgrade the entire system rather than just the transponder.
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### **Conclusion**
The **Garmin GTX 330DES ADS-B Transponder** is a solid choice for pilots who need **ADS-B compliance, traffic awareness, and weather integration** in a reliable package. It strikes a balance between functionality and cost, making it suitable for **general aviation aircraft operating in controlled airspace or where ADS-B is required**. However, it may not be the best fit for pilots who:
- Rarely fly in controlled airspace.
- Need advanced traffic collision avoidance (TCAS) features.
- Have a tight budget and can opt for a simpler Mode S transponder.
- Require extensive avionics upgrades beyond ADS-B.
If ADS-B compliance is a priority and you value Garmin s reliability and integration with their ecosystem, the GTX 330DES is a **strong recommendation**. For pilots who need more advanced traffic monitoring or operate in high-density airspace, considering a **GTX 335 (with TCAS)** or a **dedicated ADS-B In receiver** may be worth the extra investment.
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### **Final Recommendation**
**Buy the Garmin GTX 330DES if:**- You need ADS-B Out compliance for FAA or international operations.
- You want basic ADS-B In traffic and weather awareness.
- You already have or plan to integrate Garmin avionics.
- Your aircraft frequently operates in controlled airspace.
**Consider alternatives if:**- You only need a basic Mode S transponder for non-ADS-B operations.
- You prioritize TCAS over ADS-B In.
- Your budget is limited, and you can find a used or less expensive model.
For most **modern general aviation aircraft** where ADS-B is either required or beneficial, the GTX 330DES is a **practical and reliable choice**. Ensure proper installation and antenna placement to maximize performance.
Details:
GARMIN GTX 330DES DIVERSITY MODEs ADS-B OUT TRANSPONDER WITH EXTENDED SQUITTER 11-33 VDC P/N 011-00455-90 S/N 84412002. COME WITH FAA FORM 8130-3 DATED 02/19/2026.
part #: 0110045590 prices
- $595.00-$1100.00
specifications comnavavioni:
- for models: Gtx
- for makes: Garmin
- mpn: 011-00455-90
- part type: Transponder
- warranty: 30 Day
- country of origin: United States
offer comnavavioni:
- best offers: True
- sold: 0
- options: Ship-to-home
- availability: In Stock
- started: March 8, 2026
- quantity: 1
shipping comnavavioni:
- cost: $50.00
- service: UPS Ground
- class: Standard
- type: Fixed
- carrier: UPS
- transit: 3-6 Days
payments comnavavioni:
- credit card: Discover
- other
- wallet: Google-pay
returns comnavavioni:
- policy: Returns Accepted
- time: 30 Days
- paid by: Buyer
general comnavavioni:
- condition: Used
- Aviation Parts Accessories > Avionics > NAV/COMs
seller comnavavioni:
- city: Wesley Chapel, Florida
- # reviews: 2445
- rating: 100.0%
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