Af Auxiliary Input; Sidetone; Squelch Operation; Memory Channels - Becker GT6201-05 Installation And Operation Manual

Becker Avionics
1.5.4

AF Auxiliary Input

The AF auxiliary input is the interface to connect an external audio source (e.g. other radio
•
services, music-player) .
o The interconnection of multiple external audio sources on this port make an
additional external decupling/isolation resistor necessary.
The external audio is audible only when the transceiver is in receiving mode.
o
o The individual audio volume is set directly at the external equipment.
1.5.5

Sidetone

The sidetone is available on the headphone output during transmission.
•
The sidetone volume depends on to the intercom volume setting.
•
1.5.6

Squelch Operation

The squelch (muting) circuit suppresses signals with strong signal noise (when enabled).
•
There are two kinds of squelch methods implemented, carrier- and noise-squelch.
•
o The carrier-squelch depends on the signal strength and is adjustable in
configuration setup.
o The noise-squelch depends on the noise level and is adjustable in the user menu.
1.5.7

Memory Channels

You can can store 99+9 frequencies.
•
o The user can give a defined text label to each stored frequency.
The last recently used 9 (active) frequencies are stored automatically as "LAST"
o
channels.
1.5.8

Scan Mode

• The scan mode is a dual watch function.
o The device monitors frequencies on two different channels, active & preset
frequency at the same time.
o The signal of the active frequency is always audible it has priority at all times.
1.5.9

Illumination

• The illumination of LCD and keys is controlled from the front panel with the user menu or
externally with the dimming input lines.
If external dimming is selected, the illumination curve (brightness to voltage relation) is
•
adjustable in configuration setup.

1.5.10 LOW BATT Indication

• The transceiver monitors the power supply voltage.
o If the power supply voltage is less than the adjusted threshold, the display shows
the message "LOW BATT".
o If the power supply voltage decreases further, an emergency operation mode
starts.

1.5.11 Emergency Operation

If the power supply voltage is < 10.25 V, the device continues operation with decreased
•
performance.
• If power supply voltage is < 9.0 V, the device switches off automatically.
DV17001.03 Issue 06 January 2019 GT6201
General Description
Scope of Functionality
17