Becker Avionics GmbH AR6203 Manual De Usuario

Operating Instructions

Frequency Selection Modes

0638.420-071 Issue 03 July 2015

VHF Transceiver Family 620X

•

PTT 1 input activates transmission from microphone path 1

•

PTT 2 input activates transmission from microphone path 2

•

If BOTH MIKES are active / enabled in the installation setup,

each input (PTT 1 or 2) activates the transmission from both

microphone paths simultaneously.

The "TX" symbol in the left upper corner of the display indicates the device

is in transmitting mode.

118.005

127.000

In transmit mode several user actions such as changing frequency

selection mode or channel spacing mode, which are normally allowed in

receive mode, are blocked. (As an exception in standard mode the "Preset"

frequency may still be changeable, even during transmission).
No intercom operation is possible in transmit mode.
The side tone (demodulated audio of the emitted signal) is available on the

headphone output. The transmit mode automatically deactivates the

speaker.
Note:

Transmit mode is automatically terminated (return to

receive mode) after 120 seconds of continuous

transmitting even if PTT is still pressed. In this case

"STUCK PTT" is indicated (refer to page 30). For

initiation of a new transmission, /PTT line needs first to

become inactive.

2.5.

Frequency Selection Modes

Following frequency selection modes are available on AR620X and

RCU6201:

•

Standard mode

•

Direct tune mode

•

Channel mode

•

Scan mode

The "Standard Mode", "Direct Tune Mode" and "Channel Mode" provide

different user interfaces for convenient selection of the operating frequency.

These three frequency selection modes are selectable by consecutive short

pressing of "MDE" key.