9 BOOM BOX 3 Dynamite Controller
2.2.1 BB3 Autonomous Mode:
The Boom Box 3 can be used in Autonomous mode. In this mode the Decoder units use GPS time
to fire the shots. No Encoder unit or Radio telemetry is required. Multiple shooters can be used
with no overlap of shots times. The Units and Record length can be assigned using the User
Interface software. For further details refer to BB3 autonomous Mode section.
2.3.1 Standard Radio Mode:
The Boom Box 3 system is used to synchronize and control dynamite operation on seismic
recording crews. A typical system includes at least one Boom Box 3 set up as a Decoder, and one
Universal Encoder II (UE2) for the Encoder.
The Encoder unit interfaces the Seismic Recording System with a radio system, which
communicates to the Decoder system. The Recording System sends a start command to the
Encoder, which causes the Encoder to send a fire command to the Decoder. The Decoder receives
the Fire command and will fire the CAP if the Decoder unit is ARMED and Charged. While the
Decoder unit fires the CAP, the Encoder issues a Time Break signal to the Recording System.
After the shot is fired the Decoder records the signal from the Uphole Geophone and transmits this
data along with other QC data to the Encoder.