ANTENNA - As Removed
P/N: 4021688-901
Category: Antennas
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| As Removed | 1 Available |
Product Description
The 4021688-901 is a radio altimeter antenna for Honeywell/Sperry AT-100 systems. Operating in the 4.2–4.4 GHz band, this antenna transmits and receives signals for absolute altitude measurement during approach and landing. The unit meets RTCA DO-160 environmental qualification standards for aviation use.
Installation follows FAA AC 43.13-2B guidance and the aircraft's avionics installation manual. Verify compatibility with your aircraft's Illustrated Parts Catalog before installation.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the ANTENNA (P/N 4021688-901)?
The 4021688-901 is a radio altimeter antenna for Honeywell/Sperry AT-100 systems. Operating in the 4.
Is the 4021688-901 compatible with my aircraft's avionics suite?
Avionics compatibility depends on your aircraft model and existing installation. The ANTENNA is available in: As Removed. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.
Does the 4021688-901 come with an 8130-3 airworthiness tag?
Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.
Do you offer bench testing for the 4021688-901?
We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.