PDS_VERSION_ID         = PDS3                                                 
RECORD_TYPE            = STREAM                                               
DATA_SET_ID            = {"CO-V/E/J/S/SS-RPWS-4-SUMM-KEY60S-V1.0",            
                          "CO-V/E/J/S/SS-RPWS-2-REFDR-ALL-V1.0",              
                          "CO-V/E/J/S/SS-RPWS-3-RDR-LRFULL-V1.0",             
                          "CO-V/E/J/S/SS-RPWS-2-REFDR-WBRFULL-V1.0",          
                          "CO-V/E/J/S/SS-RPWS-2-REFDR-WFRFULL-V1.0"}          
PRODUCT_ID             = "C11_TRIG_74"                                        
PRODUCT_VERSION_ID     = "1.00"                                               
PRODUCT_TYPE           = ANCILLARY                                            
INSTRUMENT_HOST_NAME   = "CASSINI ORBITER"                                    
INSTRUMENT_HOST_ID     = CO                                                   
INSTRUMENT_NAME        = "RADIO AND PLASMA WAVE SCIENCE"                      
INSTRUMENT_ID          = RPWS                                                 
OBJECT                 = TEXT                                                 
  PUBLICATION_DATE     = 2005-03-17                                           
  NOTE                 = "                                                    
      TRIG_74.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 74."        
END_OBJECT           = TEXT                                                   
END                                                                           
                                                                              
                                                                              
Trigger 74 Description                                                        
                                                                              
Sequence: C14 (Venus-2) (ESB)                                                 
                                                                              
Trigger 74 (Venus-2 Observation Setup)                                        
                                                                              
This mode is a modification of the Venus-1 observations. The HFR is           
allowed to free run,                                                          
                                                                              
and the HFR data is NOT compressed. LFR, MFR, and WFR data are also           
collected, resulting in the                                                   
                                                                              
entire RPWS frequency range (1 Hz - 16 MHz) to be covered.                    
                                                                              
Trigger 74 is intended to be used to start the Venus observation, then        
Triggers 78, 7A, and 7C                                                       
                                                                              
may be used to move through the desired configurations. Trigger 78 may        
subsequently be used to re-enter the                                          
                                                                              
mode initiated by trigger 74 without incurring the long setup time.           
                                                                              
Receiver  Frequency Range   Sensors             Time between Snapshots        
--------  ----------------  ------------------  ----------------------        
LFR       1 - 25 Hz         EX, BX              16 seconds                    
MFR       25 - 12 KHz       EX, BZ              32 seconds                    
WFR       .1 - 2.5 KHz      EX, EW, BX, BY, BZ  342 seconds                   
HFR       3.6 KHz - 16 MHz  EX                  32 seconds                    
                                                                              
The HFR is in a special Venus-2 Lightning Scan mode.                          
                                                                              
This mode is defined by:                                                      
                                                                              
          Correlations Channels    Integ.           Size Frequency            
Band Ant. Auto- Cross- per Band df Period Rep Steps kHz  Start - Stop         
---- ---- ----- ------ -------- -- ------ --- ----- ---- ------------         
ABC  1E     n     n       32     n  125    1              3.6-319 kHz         
H1   1E     n     n        1     n   20    1   12    350  125k-3.975MHz       
H2   1E     n     n        1     n   10    1    8   1500  5.475M-15.975MHz    
                                                                              
The HFR is free-running, resulting in:                                        
                                                                              
Bands ABC require 0.242 sec to complete, H1 requires 0.242                    
sec, and H2                                                                   
requires 0.098 sec                                                            
for a total of 2.33 sec per sweep. However, the HFR actually only             
performs one complete                                                         
sweep every 2.5 seconds.