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_7A"                                        
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_7A.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 7A."        
END_OBJECT           = TEXT                                                   
END                                                                           
                                                                              
                                                                              
Trigger 7A Description                                                        
                                                                              
Sequence: C14 (Venus-2) (ESB)                                                 
                                                                              
Trigger 7A (Venus-2 Observation with mS)                                      
                                                                              
     This mode cycles the HFR through Venus-2 and mS mode while LFR, WFR, and 
     MFR data is obtained.                                                    
                                                                              
     This trigger must be sent after Trigger 74, and cannot be issued         
     stand-alone.  This trigger is designed                                   
                                                                              
     to work with Triggers 78 and 7C (i.e. Trigger 74 must be used for        
     initial setup, but Triggers 78 and/or                                    
                                                                              
     Trigger 7C may occur prior to Trigger 7A).  Setup in this mode requires  
     about 2 seconds.  The HFR millisecond                                    
                                                                              
     mode is cycled through 3 frequencies (9125 kHz, 1525 kHz, and 5325 kHz), 
     with 32 seconds of HFR mS data at each                                   
                                                                              
     of these frequencies seperated by 32 seconds of analysis mode HFR data   
     (see Trigger 74).                                                        
                                                                              
Receiver      Frequency Range       Sensors             Cycle Time            
------------  --------------------  ------------------  -------------         
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 analysis  3.6 KHz - 16 MHz      EX                  2.5 seconds           
HFR mS        9125, 1525, 5325 kHz  EX                  1.375 seconds         
                                                                              
The HFR analysis mode is defined by:                                          
                                                                              
          Correlations Channels    Integ.           Size Frequency            
Band Ant. Auto- Cross- per Band df Period Rep Steps kHz  Start - Stop         
---- ---- ----- ------ -------- -- ------ --- ----- ---- ------------         
ABC  1E    y        n     32     n  125    1              3.6 kHz-319 kHz     
H1   1E    n        n      1     n   20    1   12    350  125 kHz-3.975 MHz   
H2   1E    n        n      1     n   10    1    8   1500  5.475MHz-15.975 MHz 
                                                                              
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.                                                      
                                                                              
The HFR mS mode is defined as a fixed frequency (9125, 1525, and 5325 kHz),   
1024 samples taken at a                                                       
                                                                              
rate of 1 mS obtained every 1.375 seconds, fo 32 seconds.                     
                                                                              
The resulting HFR modes are:                                                  
                                                                              
9125 kHz mS mode (32 seconds)                                                 
                                                                              
HFR free run (32 seconds)                                                     
                                                                              
1525 kHz mS mode (32 seconds)                                                 
                                                                              
HFR free run (32 seconds)                                                     
                                                                              
5325 kHz mS mode (32 seconds)                                                 
                                                                              
HFR free run (32 seconds)                                                     
                                                                              
repeat