Northern Airborne Technology CC250 - Manual (Page 46)

CC450-0V2 Communications Controller
Installation and Operation Manual
3.6
System Use
The CC450-0V2 has the ability to greatly increase the communications capability during multi-agency
operations. However, care must be exercised with the use of the CC450-0V2 system to keep
communications efficient. Ground based users and other parties that will be transmitting to, or receiving
from the CC450-0V2, must be knowledgeable about the operating parameters of the system to avoid
confusion or misunderstood communications.
Parties using the CC450-0V2 must understand that an alert tone will precede and follow each
transmission. The alert tone signifies that the transmission being received is being processed through the
CC450-0V2.
Operators of the CC450-0V2 should be aware that a small amount of time is required between pressing
the PTT switch on the microphone, and the selected transceivers being able to transmit. During
Simulcast, the CC450-0V2 delays up to one fifth of a second after it detects a PTT, then generates the
alert tone. The user will hear the alert tone through the sidetone, after which speech may be transmitted.
During RELAY operation, a ground user should wait at least one second from pressing the PTT switch
before speaking into the microphone. This one-second delay is required because of the extra
transceivers and the CC450-0V2 in the transmission path. If the user speaks into the microphone
immediately upon depressing the PTT button, the first few syllables may be omitted from the
transmission.
Section 3 ends
Page 3-4 Issue 1 Section 3 Rev: 1.00
ENG-FORM: 806-0110.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.