Seismic Source BOOM BOX 3 User Manual

User’s Manual
14
4. Encoder Operation
The following Encoders can be used to fire the Boom Box 3 Decoders via radio
• Universal Encoder 1 (in VP mode)
• Universal Encoder 2
• Boom Box 3 unit with SourceLink™ Software
The Boom Box 3 can be placed into encoder mode by changing the operating mode with either the
Wi-Fi web interface or the SourceLink software.
4.1.1 Fire Sequence – Encoder – Following sequence occurs.
• The fire sequence can be started multiple ways.
o A hardware pulse (Isolated Remote Start) from an external source. Recording
System type is Generic Serial. Currently all unit IDs will be enabled to fire, not
changed by the RTI sequence message.
o Recording System type is SourceLink. SourceLink can fire the Boom Box 3
encoder.
o Recording System type is Sercel. Place the Sercel recording system in SGDS
dynamite mode. The Sercel recording system can now send the RTI message that
tells the Boom Box 3 encoder which unit to fire. The same message will fire the
Boom Box 3.
• The Encoder then sends the Start Code Radio transmission.
o Wi-Fi, Standard Encoder, Auto Zero Time not selected. Timing of the radio Start
Code Radio transmission determined by Encoder Start Delay and Encoder Radio
Start Delay Time entries.
o Wi-Fi, Standard Encoder, Auto Zero Time selected. GPS start time is in the Start
Code Radio message and used to fire the shot.
• The Encoder then issues the Time Break at the end of the Encoder Start Delay Time. The
time break signal should occur while the Shot is being fired by the Decoder Unit.
• After the Shot is fired the Encoder receives the Shot Status Report message from the
Decoder. The time when the message is received determines when the timing pulses will
occur.
• The Encoder display will show ‘PFS Rx !!’ when the decoder post report is received.
• The Encoder generates reference pulses at 3, 3.25, and 3.5 seconds prior to firmware 15.14.
Firmware 15.14 and newer the reference pulses are at 1, 1.5 and 2 seconds. These pulses
should align with the timing pulses generated from the Decoder’s Shot Status Report.
• The Encoder outputs the following timing pulses. These pulses are based on when the
Shot Status Message is received.
o Data reception pulse – Pulse that is generated if Shot Status Message is received.
This pulse should be at 3 seconds plus one-way radio delay prior to firmware
15.14. Firmware 15.14 and after this pulse should be at 1 second plus one-way
radio delay.
o Confirmation Time Break – This pulse will be generated if current to CAP
exceeded threshold. This pulse is generated 0.25 seconds after Data Reception
Pulse in firmware prior to 15.14. Firmware 15.14 and newer this pulse is
generated 0.5 seconds after Data Reception Pulse.

Seismic Source BOOM BOX 3 Specifications

General

Brand	Seismic Source
Model	BOOM BOX 3
Category	Controller
Language	English