Trigger 3A Description

Sequence: C19,...
Trigger 3A ( 10 KHz WBR )

This trigger is designed to produce Wideband Receiver data from .1 to 10 KHz. Data acquisition continues for the LFR, the MFR, and the HFR. The HFR is in its Composite Survey Mode (CMS).
This trigger turns on compression of the WBR data, and sets the snapshot length to 3072 samples.

Receiver	Frequency Range	Sensor	Time between Snapshots	Samples per Snapshot
LFR	1 - 25 Hz	EX, BX	32 seconds
MFR	25 Hz - 12 KHz	EX, BZ	32 seconds
HFR	3.6 KHz - 16 MHz	EX, EW	7.375 seconds
WBR	.1 - 10 KHz	EX	0.125 second	3072

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.