A term that refers to the various forms of computers used in
vehicular radio configurations for data communications during
army digitization experiments. FBCB2 computers range from
commercial off-the -shelve items to fully militarized computers.
The interface from FBCB2 computers to the SINCGARS SIP/ASIP
radio system is via an RS-232 port of the computer to the SlP/ASlP
VAA J6 connector.
UNIX-based software developed especially for support of Task
Force XXI operations and used in FBCB2 hardware. FBCB2
software, when employed with the SIP/ASIP RT and SlP/ASIP VAA,
provides situational awareness reporting, internet operations, and
SINCGARS to EPLRS automatic interface. The host interface to the
SINCGARS SlP/ASlP radio system uses the commercial TCP/lP
family of communications protocols specified in the Army
Technical Architecture (ATA).
Frequency hopping (FH) data
Hopset, lockouts if used, TSK, net ID, and sync time required for FH
Mode position used by the NCS in which the NCS RT helps
maintain sync time in all net radios.
RT temporary memory used for loading, retrieving, and sending fill
Hot start net opening
Method of opening a FH net in which net operators load all required
COMSEC, FH data, and sync time from their ANCD and merely call
the NCS to check into the net.
The terms used to indicate the capability of data messages to pass
automatically from one SINCGARS net to another and from a
SINCGARS to an EPLRS net to reach a single addressee or
broadcast sub-net. The SlP/ASIP VAA controls internet
operations through the software, addresses, and routing tables
stored in its memory. The internet capability is available only when
the SIP/ASIP radios are employed with the FBCB2 system.
The capability available when packet data mode and the FBCB2
system are used which allows a single SlP/ASlP radio to relay a
data message to its addressee within the same frequency hopping
net. After the transmitting station tries unsuccessfully several times
to reach the addressee station, software in the SlP/ASlP VAA
causes the intranet relay station to retransmit the message. The
intranet feature is entirely automatic, requiring no action on the part
of the intranet relay station operator. This represents a future
capability and is currently not used.
Line of sight (LOS)
Straight line path between two radios that is required for best
All COMSEC keys, FH data, and sync time required to load all six
RT channels for frequency hopping, cipher text mode of