Trigger 56 Description

Sequence: C18,...
Trigger 56 ( Fast 25 Hz WFR )

This trigger is designed to provide 25 Hz WFR data with a high temporal resolution. Data acquisition continues for the MFR, HFR and WBR.

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	9.875 seconds
WFR	1 - 25 Hz	EX, EW, BX, BY, BZ	25 seconds	2048
WBR	.1 - 10 KHz	EX	0.25 second	1024

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     60    25   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 5.05 sec, and H2 requires 1.46 sec for a total of 9.67 sec per sweep. Data collection and output limits the snapshot time to 9.875 seconds.