4.850.077 ARK-15M

EKR 4.850.077 loop cable equivalent in the ARK-15M system

EKR 4.850.077 is a specialized loop cable equivalent used in the ARK-15M automatic radio compass system. The unit is not a standard cable or general-purpose wiring item. It is a calibrated component used to simulate, compensate and stabilize the electrical parameters of the loop antenna feeder circuit. Within the ARK-15M radio navigation system, it supports correct operation of the loop antenna channel and helps maintain the signal conditions required for reliable radio direction finding.

Antenna feeder compensation through 4.850.077

The 4.850.077 unit compensates the electrical parameters of the loop antenna feeder line. Its function is connected with impedance stabilization and preservation of the required signal characteristics between the loop antenna circuit and receiver equipment. In a radio compass system, even small changes in antenna-feeder parameters can affect bearing accuracy and signal processing stability. The loop cable equivalent helps keep the antenna circuit within the required electrical range, allowing the receiver to process the signal correctly during navigation operation.

4.850.077 in the loop antenna circuit

The 4.850.077 works with the loop antenna unit 2.090.020 and related ARK-15M receiver equipment. The loop antenna is used for direction finding, while the cable equivalent supports correct electrical matching of the antenna path. This is important because the radio compass determines bearing from antenna signals, and inaccurate feeder parameters can introduce errors or reduce system stability. The unit should therefore be checked as part of the full antenna-feeder system, not as an isolated cable item.

System integration of EKR 4.850.077

EKR 4.850.077 operates as part of the ARK-15M system together with the receiver unit 2.003.013-01, control panel 3.624.049 and loop antenna unit 2.090.020. These components work together to receive radio signals, tune the required frequency, select operating modes and determine the bearing to ground-based radio beacons or broadcast stations. The loop cable equivalent supports the antenna circuit side of this process by maintaining stable signal and impedance conditions. Its correct installation and documentation are important for radio compass performance.

Aviation application of 4.850.077

The 4.850.077 loop cable equivalent is used in aircraft and helicopter navigation systems equipped with the ARK-15M automatic radio compass. It is applied as part of the antenna-feeder system and is classified as aviation technical equipment. The component may be used in both civil and military aircraft where the ARK-15M system is installed. Since aircraft configurations and radio navigation installations can differ, applicability should be checked through the ARK-15M system documentation, aircraft equipment list and maintenance documentation.

Identification and ordering of EKR 4.850.077

The product may be referenced as EKR 4.850.077, 4.850.077 or 4.850.077-10. These designations relate to the loop cable equivalent used in the ARK-15M radio compass system, but the exact variant should be confirmed before ordering. For correct supply, it is useful to specify the aircraft type, installed ARK-15M configuration, required designation variant, condition and documentation requirements. If the request concerns restoration of a complete radio compass system, associated components such as the receiver, control panel and antenna unit should also be checked for compatibility.

Product Type: Loop cable equivalent / antenna feeder compensation unit
Designation: EKR 4.850.077
Alternative Designations: 4.850.077, 4.850.077-10, ЭКР 4.850.077
Function: Compensation of antenna feeder parameters and impedance stabilization
Application / Where Used: ARK-15M airborne automatic radio compass system
System / Installation Area: Aircraft radio navigation system / antenna-feeder circuit
Associated System: ARK-15M automatic radio compass
System Role: Ensures correct operation and stability of the loop antenna circuit
Related Components: Receiver unit 2.003.013-01; control panel 3.624.049; loop antenna unit 2.090.020
Operating Role: Stabilization of signal characteristics in the loop antenna channel
Category: Aviation technical equipment / ATE
Condition: As applicable
Technical Documentation: ARK-15M system documentation, aircraft maintenance documentation, product passport and test records if available

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