Becker Avionics AR4201 Single Block 25KHz VHF/AM Transceiver, 2.25" mount
Factory Overhauled Unit - Includes 2-Year Warranty
The AR4201 small and lightweight transceiver offers 760 channels and is certified for use in VFR and IFR equipped aircraft.
Even smaller and lighter than its forerunner - the legendary AR 3201 - it is ideal for installation in gliders, motor gliders and small aircraft due to its low power requirement and 2 1/4 inch round panel cutout. Due to the implementation of the most modern technology it has been possible to minimize the depth of the module, including the connector, to less than 9 inches. This equipment is useful in a wide range of aircraft and is also optimal for use at flying schools and flying clubs, who place a lot of value on quick, safe and simple operation.
- Standard AR 4201 Functions: Intercom, Panel-lighting, Voltage indicator, AF-input, Automatic test-routine
- Output of 5-7 Watts carrier (16 W PEP)
- Standby frequency and 99 memories can be easily programmed and recalled
- Two dynamic and two standard microphones
- Using the RS-232 interface, all functions can be remotely operated
- 760 channels
- Active standby ch. display
- 99 preset frequencies (118 - 136.975MHz)
- 25 kHz channel spacing
- 14 VDC Input
- Sunlight-readable LCD
- Channel mode
- Illumination 14V
The VHF transceiver has been developed as a single block unit. The dimensions correspond to the standard instrument diameter of 58 mm (2 1/4 inch). Mounting is by means of four screws (rear panel mounting). All controls and indicators are located on the front panel. The rear of the unit holds the equipment connector and the antenna socket.
The VHF transceiver is fitted with a single superheterodyne receiver. A squelch (muting) circuit suppresses transmitters or disturbances below a certain field strength. The switching threshold can be set. The squelch function can also be switched off. The transmitter is designed to be wideband over the 118.000 MHz to 136.975 MHz range. The transmitter output power is greater than 5 Watt. The sidetone is automatically switched to the headphone output during transmission. The microphone inputs are designed for both dynamic and standard microphones. The inputs are connected to a dynamic volume compressor which keeps the modulation voltage constant over a wide input voltage range.
The frequency indication is by means of a liquid crystal display (LCD). The required operating frequency is set using the MHz and kHz frequency selector switches. The MHz rotary switch engages at 1 MHz steps and the kHz rotary switch at 25 kHz steps. The VHF transceiver also contains a memory device for storing 99 different frequencies which remain stored even with the unit is switched off without an auxiliary battery.