King KMA 20 / KR 21 Marker Beacon Receiver/Isolation Amplifier Installation Manual

This is an installation manual that describes how to install the KMA 20 and KR 21 marker receiver/isolation amplifier

Brand: King
Category: Other
Document type: Installation Guide
Language: English
Pages: 28
File format: PDF
File size: 622 KB
Published: 19 October, 2023
Updated: 19 October, 2023
MD5 checksum: 6DE568AB0E76863140468D2742890500
PDF: King KMA 20 / KR 21 Marker Beacon Receiver/Isolation Amplifier Installation Manual PDF

About this manual

This manual provides installation instructions for the King KMA 20, a compact transistorized unit serving as a marker beacon receiver, isolation amplifier, and audio control panel. It is designed to harmonize with the Silver Crown panel mounted equipment line and is TSO certified. The unit can be configured with an optional KA 40 remote light assembly.

What's inside

General Information
Technical Characteristics
Accessories Required
Unpacking and Inspecting Equipment
Installation Procedure
Marker Antenna Installation
KA 40 Installation
Marker Beacon Operation
Isolation Amplifier Operation
Interconnect Diagrams

Specifications

Output Power (4 ohm)	6.25 watts
Frequency	75MHz
Input Impedance	50 ohm
Input Isolation	40db
Speaker Output Impedance	4 ohm
Frequency Response	350Hz to 3000Hz
Idle Current (13.75V)	300ma
Operating Current (27.5V)	1.1 amps
Weight	2.3 lbs

Frequently asked questions

What is the KMA 20?

The KMA 20 is a compact transistorized unit providing the functions of marker beacon receiver, isolation amplifier and audio control panel.

Is the KMA 20 interchangeable with the KR 21?

Yes, the KMA 20 and KR 21 are completely interchangeable between aircraft with no internal wiring changes.

What voltage options are supported?

The unit supports 13.75V or 27.5V operation.

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