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General| Brand | Becker |
|---|---|
| Model | AR4201 |
| Category | Transceiver |
| Language | English |
Provides an overview of the manual's purpose and scope for VHF transceivers.
Specifies the devices for which this manual is valid, focusing on AR4201 to AR6201 retrofitting.
Details steps for inspecting the installation area for defects and ensuring component integrity before replacement.
Outlines a pre-retrofit functional test for TX/RX communication, checking for distortions.
Provides instructions on disconnecting and physically removing the AR4201 unit from the aircraft panel.
Compares pin functions and compatibility between AR4201 and AR6201 transceivers for retrofit.
Lists essential checks to ensure the AR6201 is correctly installed, wired, and secured.
Confirms secure cable connections, shielding, and aircraft control movement clearance.
Validates power supply lines, polarity, and voltage stability with the engine running.
Tests communication performance by tuning to local and airborne stations for clear audio.
Measures VSWR across the frequency band to ensure optimal antenna performance.
Evaluates potential interference between the AR6201 and other aircraft systems.
Recommends flight testing to verify performance with ground and airborne stations in flight.
Details a procedure to check compass deviation caused by the AR6201 during a 360° turn.
Advises updating AFM records and refers to I&O manual for detailed technical data.
