Viper SC+™ IP Router for Licensed Spectrum PN 001-5008-000 Rev. C
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The Viper is not receiving data because two or more Vipers are transmitting at the same time causing a
collision,
The Viper is not receiving data because the RF level is right at or below data sensitivity, or
There is interference from another RF system or electrical devices on the frequency that the Viper is
operating on.
Enabled (listen to data only)
The Viper will monitor the RF level on the receive channel. When the received level is above the carrier sense
threshold, the Viper will try to receive and decode any and all messages from remove Vipers. When data is
ready to transmit, the Viper will first check the receive level. If the receive level is below the carrier sense
threshold, the Viper will immediately transmit data. If the receive level is above the carrier threshold, the
Viper will try to determine if it is receiving valid data or just noise. If it is receiving noise, the Viper will go
ahead and transmit. If it is receiving valid data, the Viper will wait until the complete packet has been received
before transmitting. The Viper will typically take 5 to 250 ms to determine if it is receiving data or just noise.
Disabled
The Viper will attempt to receive and decode data when the received RF level is above the carrier sense
threshold. When the Viper has data to transmit it will immediately transmit the data. The Viper will
immediately stop receiving packets and will transmit over any other Vipers that are on the air and over any
interference that may be present. This mode
should only be used in a polling-type environment
where the
user has strict control over the traffic that is generated.
Save
— Click Save to save any changes you have made in this tab. See Note below.
Cancel
— Click Cancel to cancel any changes you may have made to any of the settings in this tab.
Note:
It is the user’s responsibility of the user to check his or her FCC license or applicable regulatory agency for the
country or geographical area in which the Viper will be operated to determine the correct parameters and settings for
the channel frequencies, power level and bandwidth. Selecting a frequency range or transmit power that is out of
compliance (in the country where used) could void the user’s authority to operate the equipment.
4.2.2.
CWID
CWID is the second (middle) tab of the Radio Settings page. To navigate to this tab, select Radio Settings from the main
menu and click CWID. In this tab you can configure the Viper CWID parameters.
Some regulatory agencies require a station identification. The Viper offers a Morse Code (CW) identifier or Continuous
Wave Identification (CWID) that will identify the unit on the first transmission and at periodic intervals after that. This
tab is used to enable this feature if required, and enter the CWID call sign and specify how often it will be broadcast.
