o BB3/UE3 Encoder (EF3)
• Repeater ID – (1 – 64) used with A3 and F3 Repeater Encoder.
• Auto Shut Down – (0-255 minutes)
o Decoder unit will automatically power down after this time to conserve battery
power.
o Any switch movement will reset the time to shut down.
o 0 is always ON.
o Normally set to 10 minutes.
• First Break Threshold
o 10% of peak Threshold (Data Peak/10 with Backup)
o 20% of peak Threshold (Data Peak/5 with Backup)
• Interface Function:
o Recorder Start Active.
▪ High
• Low to high transition on Non-isolated Recorder Start.
• Open on Isolated Recorder Start
▪ Low
• High to low transition on Non-isolated Recorder Start.
• Closed on Isolated Recorder Start
o Time Break Active.
▪ High
• Low to high transition at time 0 when shot is fired on Non-isolated
Time Break.
• Open on Isolated Time Break.
▪ Low
• High to low transition at time 0 when shot is fired on Non-isolated
Time Break.
• Closed on Isolated Time Break.
▪ Decoder always-active LOW.
o Remote Start Active – signal to Boom Box 3 from the Recorder, which starts the
Fire Command sequence.
▪ High – low to high starts fire command sequence.
▪ Low – high to low starts fire command sequence.
o Speaker Polarity – selects speaker polarity for the radio reception. Typically, the
Boom Box 3 will receive data better on one polarity than the other. A distance test
should be performed to determine optimum performance.
o Microphone Polarity – Sometimes it is better to switch microphone polarity than
speaker polarity.
▪ Normally set to Normal.
• Geophone Limit Min (0 – 870) ohm. Sets minimum limit in ohms for the uphole
geophone resistance measurement. Determines if the Boom Box 3 Decoder test the uphole
geophone as good or bad. Flashes Test LED 4 times green for good or flashes 4 times red
for bad.
o Typical = 50 ohm – depends on uphole geophone.
• Geophone Limit Max (0 – 870) ohm. Sets maximum limit in ohms for the uphole
geophone resistance measurement. Determines if the Boom Box 3 Decoder test the uphole
geophone as good or bad. Flashes Test LED 4 times green for good or flashes 4 times red
for bad.