3.624.049 ARK-15M

3.624.049 control panel in the ARK-15M system

3.624.049 is a cockpit control panel used with the ARK-15M automatic radio compass system. The unit provides the flight crew with direct control of the radio compass operating modes, channel selection and frequency tuning. It works as the pilot interface between the cockpit and the ARK-15M receiver system, allowing the crew to use ground-based radio beacons and broadcast stations for navigation. The panel is part of the onboard radio navigation system and is normally installed within easy reach of the pilots.

Frequency tuning through the 3.624.049 panel

The 3.624.049 panel allows the crew to set the required operating frequency of the ARK-15M radio compass. Frequency selection is performed through mechanical frequency selectors and related switches. The selected frequency is used by the receiver to tune to non-directional beacons or suitable broadcast stations within the system operating range. Accurate tuning is important because the radio compass relies on stable reception and correct signal processing to provide bearing information. The panel therefore supports both navigation setup and practical in-flight use of radio navigation aids.

Operating control functions of 3.624.049

The 3.624.049 control panel provides access to the main operating modes of the ARK-15M system, including compass mode and antenna reception mode. Through the panel, the crew can select channels, tune frequencies, monitor received audio signals and use antenna frame control functions for system checking. These controls help the crew verify reception quality and manage the radio compass during en-route navigation, radio station tracking and instrument approach procedures. Correct switch operation, illumination and electrical connection are important for reliable cockpit use.

3.624.049 in aircraft cockpit installation

The 3.624.049 panel is installed on the cockpit instrument panel or central control console, depending on aircraft type and avionics layout. The installation position should allow the crew to read frequency settings and operate switches without difficulty during flight. The panel includes illuminated frequency drums and controls for use in low-light cockpit conditions. During maintenance, technicians normally check the front panel condition, switch movement, illumination, connector state, mounting security and proper interaction with the receiver and other ARK-15M system components.

Aircraft application of the 3.624.049 control panel

The 3.624.049 control panel is used on aircraft and helicopters equipped with the ARK-15M automatic radio compass. Typical applications include Mi-8 and Mi-24 helicopters, as well as Tu-134, Tu-154, Il-76 and Yak-52 aircraft, depending on the installed radio navigation configuration. Since aircraft may differ by modification, cockpit layout, wiring and avionics equipment set, applicability should be confirmed through the aircraft equipment list, wiring documentation and ARK-15M maintenance documentation before supply or installation.

Identification and ordering of 3.624.049

The control panel may be referenced as 3.624.049 or 3.624.049-02. These designations relate to the same type of ARK-15M control panel family, but the exact execution and installation configuration should be checked before ordering. For correct supply, it is useful to specify the aircraft type, installed ARK-15M version, required condition, panel execution, connector configuration and documentation requirements. If the request concerns restoration of a full radio compass set, the receiver, antenna unit and matching unit should also be checked for compatibility.

Product Type: Control panel for automatic radio compass
Designation: 3.624.049
Alternative Designations: 3.624.049-02, ARK-15M control panel
Function: Remote control and frequency tuning of ARK-15M radio compass
Application / Where Used: ARK-15M airborne radio navigation system
System / Installation Area: Cockpit instrument panel or central control console
Compatible Aircraft / Equipment: Mi-8, Mi-24, Tu-134, Tu-154, Il-76, Yak-52 and other aircraft equipped with ARK-15M according to applicable documentation
Associated System: ARK-15M automatic radio compass
Operating Modes: Compass mode, antenna reception mode
Frequency Range: 150–1799.5 kHz
Frequency Step: 0.5 kHz
Frequency Setting Accuracy: ±100 Hz
DC Power Supply: 27 V, consumption up to 2 A
AC Power Supply: 36 V, 400 Hz, consumption up to 1 A
Control Features: Channel selection, frequency tuning, audio monitoring, antenna frame control
Panel Features: Illuminated frequency drums and cockpit switches
Installation: Cockpit instrument panel or central control console
Approximate Weight: 2.5–3 kg
System Components: Works with ARK-15M receiver, antenna unit, matching unit and cockpit indicators
Condition: As applicable
Technical Documentation: Product passport, ARK-15M system documentation, aircraft maintenance documentation and wiring records if available

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