In order to further improve on this the receiver fills the short gaps with audio signal received
immediately prior to the switch over. This tends to mask the gaps almost completely.
The receiver includes a permanently enabled impulse noise suppressor implemented using
digital signal processing algorithms. This system detects impulse noise on the received carrier
frequency such as typically caused by ignition systems or other interference sources. As this
noise has distinct characteristics it can be removed from the received signal, in many cases
without leaving a trace.
Note that despite this the actual sensitivity of your V16 may still be reduced by interference.
The impulse noise suppressor however helps greatly in removing the audible effects of this
interference.
The intercom system
A two place VOX intercom system is provided. The intercom is implemented fully digital using
a 24 bit audio codec and achieves excellent audio quality. Microphone gain adjustment it
provided that operates over an unusually large range allowing great flexibility in choosing
compatible headsets and microphones. The microphone inputs provide a 8V DC bias for
standard aviation headset pre-amplifiers.
VOX level is adjustable over a wide range.
In addition it is possible to use the “intercom” input connected to a switch to “open” or “close”
the intercom in applications where the VOX system is not suitable.
One auxiliary input is provided with two gain settings. This allows muting the input to a lower
level (or switch it off) if voice activity is detected on either microphone input. The input is
suitable for use with mobile phones, MP3 music players or audio annunicators from EFIS
systems.
The audio output can drive a 8 ohm speaker up to 0.5W for base station use. In such a case it
is recommended to switch the side tone “off” in the setup to prevent audio feedback from
speaker to microphone.
RX playback feature
The Receiver has a very useful feature that records up to a minutes worth of received audio in
high quality. Only signals that open the squelch are recorded. The available storage can be
spread over several received transmissions in a first in last out fashion.
Recall of a last received transmission can be achieved in several ways:
By configuration of the “intercom” switch as “RX audio recall” in the setup. You can then use a
push button on the stick for example to easily recall a last reception.
By using a function provided in an attached control head or EFIS system. This may also be
activated by a button connected to such equipment in some cases.
To recall the last RX, simply push the button once. To recall the previous RX to this, press the
button again while the last RX is playing back. Repeat this for all recorded signals.
If you allow a recorded message to finish playback, pressing the button will again start with
the last recorded message.
Note: Any reception lasting less than one second will not be recorded (these are usually
To Next Page
Loading...
