Beam RST825 SatRADIO, User And Installation Manual

Page: 18 / 30

Page 18 of 30
VOX operation – Understanding the operation
Once the voice call is in progress, the base operator can hear all traffic on the Radio channel
(assuming the SatRADIO has been setup with Selcall or CTSS compatible with the local
radio user group).
Whilst the radio is receiving a signal, the base operator cannot be heard (local priority). If the
channel is clear, when the operator speaks the SatRADIO transmits on the channel. The
threshold of this voice operated switch (VOX) can be adjusted, as well as the tail (how long it
keeps transmitting after the remote speech stops).
The status indicators are located on the main panel of the RST825.
LED Status
Call (Orange)
Indicates the status of the call, either a data or voice call. The LED indicates:
Description Indictor Colour - Orange
In Call Flashing
Waiting to
connect Constant
Incoming Call Cadence flash
Data Port Active Constant
Signal
The Signal Strength LED gives an indication of how strong the signal is from the Iridium
network at your location. This LED displays different colours to indicate the strength of the
RF (Radio Frequency) signal and different on/off conditions to indicate the terminal status.
Indictor colour Signal strength
Red/Green
Flashing Registering with the network – please wait
Green Good Signal
Red Bad/No Signal
The Signal Strength LED reading will vary in status in relation to the quality of the Signal
being received by the terminal. There are many factors that will affect the signal strength
including, local RF interference, poor antenna cabling or exceeding the 3dB loss limit, poor
line of sight or other environmental conditions affecting signal penetration to the antenna
system.