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the presence of noise, inter-modulation, or other sources of interference (i.e. for ambient noise at -100 dBm, set the Carrier
Sense for -95 dBm).
Tx Timeout
Tx Timeout is used to set maximum period of time the unit will allow in a transmission. The range is 0 to 120 seconds in 1
second intervals (0 being disabled). Tx Timeout is used to protect both the unit and the network in case a transmitter
becomes stuck on the air. For Integra-TRs equipped with the cooling option for extended transmit applications, the Tx
Timeout must be disabled. Warning: Disabling the timer may disrupt the network or damage the unit should it become
stuck in transmit due to excessive user data received on the COM port or the if the RTS signal remains active.
Selected Channel
This field allows the user to choose a selected channel pair for receiving and transmitting. Allowable entries are 1 to 16. The
selected channel will be used if Channel Select 1 and Channel Select 2 are NOT selected. (COM/Analog Tab). Note: This
feature is disabled when a Channel Select Line is enabled (green or white wire).
Chan Scan Time
Channel Scan Time allows the user to configure the modem to switch (increment from the Selected Channel) to a new
channel if it has not received a valid data packet for this programmable time. This is programmable in steps of 20 seconds
(60 to 5000 seconds, or 1 to 83 minutes). Setting Chan Scan Time to zero disables channel scan operation and the modem
remains on the selected channel. Note: This feature is disabled when Sleep/Suspend Period is enabled, when Master Mode
is enabled or when a Channel Select Line is enabled (green or white wire).
Chan Select Voltage
Chan Select Voltage allows the user to determine voltage thresholds for Channel Select 1 (green) and Channel Select 2
(white) inputs (if programmed). A low level (logic 0) is a voltage less than the set voltage threshold and a high level (logic 1)
is a voltage greater than the set voltage threshold. Note: Multi-Channel operation is available in modem firmware version
2.20 and later.
3.4.2.4 SETUP MODEM/RADIO PARAMETERS: FREQUENCIES TAB
Figure 24 - Frequencies Tab
Integra-TR User Manual
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