PDS_VERSION_ID         = PDS3                                                 
RECORD_TYPE            = STREAM                                               
OBJECT                 = TEXT                                                 
  PUBLICATION_DATE     = 2005-06-01                                           
  NOTE                 = "                                                    
      C40_TRIG_9A.TXT describes the RPWS instrument configuration for         
      the High Frequency Receiver (HFR), the Medium Frequency Receiver (MFR), 
      the Low Frequency Receiver (LFR), the Waveform Receiver (WFR),          
      the Wideband Receiver (WBR), the Langmuir Probe (LP), the Sounder,      
      and the onboard Dust detection algorithm when using Trigger 9A."        
END_OBJECT           = TEXT                                                   
END                                                                           
                                                                              
                                                                              
Trigger 9A Description                                                        
Sequence: All                                                                 
                                                                              
Trigger 9A mode: SOI Inner Mode                                               
                                                                              
During the innermost SOI intervals, except during the burn, the A8 mode is    
used as the background mode.  In addition, WBR data is acquired continuously, 
toggling between the 10-KHz and 80KHz bands every minute.  A snapshot is      
taken every 1/8 second, consisting of 1437 uncompressed data bytes.  The      
reason this is done is to target a 100 kbps data rate. The reason the data is 
not compressed is because compressing the 80-KHz data results in              
interruptions in the WFR and WBR data acquisitions, since they can not both   
be done at the same time unless the data is left uncompressed.                
                                                                              
Receiver  Frequency Range       Sensor          Cycle Time     Snapshot Size  
--------  ---------------  ----------------  ----------------  -------------  
MFR       25Hz-12KHz       EW,BZ               32.000 Seconds                 
HFR       3.6KHz-16MHz     EX,EW               16.000 Seconds                 
WFR       1Hz-40Hz         EX,EW,BX,BY,BZ      48.000 Seconds      2048       
WFR       50Hz-2.5KHz      EX,EW,BX,BY,BZ      48.000 Seconds      2048       
WBR       100Hz-10KHz      EX                   0.125 Seconds      1437       
WBR       1KHz-80KHz       EX                   0.125 Seconds      1437       
                                                                              
          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              3.6-319KHz           
HF1   2E    y     y        2    n     20  1     60    25 0.325-1.825MHz       
HF2   1E    n     n        1    n     10  1     72   200 1.825-16.225MHz      
                                                                              
Bands ABC require 3.160 sec to complete, H1 requires 1.573 sec, and           
H2 requires 0.886 sec for a total of 5.619 sec per sweep.  The hfr            
cycle time is 16.000 seconds.