Trigger 38 Description

Sequence: C19,...
Trigger 38 ( 80 KHz WBR )

This trigger is designed to produce Wideband Receiver data from 1 to 80 KHz. Data acquisition continues for the MFR and for the HFR. The HFR is in its Composite Survey Mode (CMS).
This trigger turns on compression of the WBR data, and forces the snapshot length to 2048 samples.

Receiver	Frequency Range	Sensor	Time between Snapshots	Samples per Snapshot
MFR	25 Hz - 12 KHz	EX, BZ	32 seconds
HFR	3.6 KHz - 16 MHz	EX, EW	7.375 seconds
WBR	1 - 80 KHz	EX	0.125 second	2048

The HFR is in CMS mode (Composite Mode Survey). No direction-finding is done. This mode is defined by:

          Correlations     Channels        Integ.                Size Frequency
Band Ant. Auto-  Cross-    per Band   df   Period    Rep   Steps kHz  Start - Stop
---- ---- -----  ------    --------   --   ------    ---   ----- ---- ------------
ABC  2E   y         y        16       n    1000      1                3.6-319 kHz
H1   2E   n         y         2       n    80        1     30    50   325k-1.8MHz
H2   1E   n         n         1       n    20        1     72    200  1.8M-16MHz

Bands ABC require 3.16 sec to complete, H1 requires 2.52 sec, and H2 requires 1.46 sec for a total of 7.25 sec per sweep. Data collection and output limits the snapshot time to 7.375 seconds.