Dayton Granger High-Pass Filter Aviation PN 55635/HPF40-777

Description

Dayton Granger High Pass RF Filter
Part Number: 55635 / HPF40-777
Serial Number: 0037

Inline coaxial high-pass RF filter. Removed during avionics upgrade with FAA tag stating “Working When Removed.” Clean unit with intact connectors and mounting base.

Condition

Working when removed

Clean physical condition

Intact RF connectors

30-Day Guarantee – Works as described or full refund (Seller pays return shipping)

Key Specifications

Type: High-Pass RF Filter

Function: Passes higher frequencies, rejects lower bands

Configuration: Inline coaxial (dual RF connectors)

Construction: Shielded enclosure for EMI suppression

Aerospace-grade (Dayton-Granger)

Compatibility & Applications

Designed for aircraft multi-radio and antenna installations requiring RF band isolation:

VHF, UHF, and L-band avionics

Transponder, DME, TCAS, and SATCOM systems

Reducing interference between radios

Improving signal integrity in complex setups

Common Aircraft: Cessna, Piper, Beechcraft, Mooney, and other GA platforms with multiple comm/nav radios.

Critical Note: Exact frequency pass/reject bands are not publicly documented. Buyer must verify frequency range, connector type, 50 ohm impedance, and installation approval (STC / field approval) prior to use. Compatibility is application-based only.

Shipping

Ships within 1 business day from California, USA

Tracking included

International shipping available via eBay Global Shipping Program

Notes
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