Specifications

BATS AND PORTABLE BATS OPERATION
3-65
 BATS Beacon List setup when tracking 4 Transponders consecutively
Scenario: 4 Divers each have a Transponder attached to them and the system tracks in sequence to obtain an update of all divers in
about 14 seconds.
Beacon#
1
2
3
4
1
etc.
Time
2
2
2.5
3.5
2
etc.
seconds
Xmit Frequency
17
19
18
20
17
etc.
kHz
 All Beacons are internally triggered. Each Beacon’s interrogation rate is adjusted for its intended range. Xmit (interrogation) In-
terval must be longer than the maximum slant range to the target. E.g., A two-way travel time for a transponder at 1000m is
approximately 1.4 seconds ((1000 meters / 1500 meter/second) * 2 ) = 1.33 seconds).
 Beacon LED’s (Trigger-In, Interrogate, Receive) shows status of each beacon Interrogation Interval every 9 seconds.
 Trigger-Out signal is transmitted at the time of each beacon interrogation LED flash.
Num
Target
Name
Type
Serial#
Chan#
Status
Xmit
Interval
Xmt
Freq
Recv
Freq
Pulse
Width
Manual
Depth
Filter
Level
Trigger
1
Beacon1
Transponder, Acoustic
1
Active*
2
17 CW
M-FSK
5
10
4
Internal
2
Beacon2
Transponder, Acoustic
1
Active
2
19 CW
M-FSK
5
15
4
Internal
3
Beacon3
Transponder, Acoustic
1
Active
2.5
18 CW
M-FSK
5
20
4
Internal
4
Beacon4
Transponder, Acoustic
1
Active
3.5
20 CW
M-FSK
5
25
4
Internal