User's Manual Part 2

Host Computer Commands
RVP8 User’s Manual
May 2003
6–44
If the XARGS are not supplied, then the filter parameters will simply retain their previous
values. Thus, CFGINTF with no XARGS can be used to turn the interference filters On/Off
without making any other changes to their threshold constants. Likewise, if only XARG 1 is
supplied, then that single threshold value will be used for both C1 and C2.
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| | | | | | | | | | | | | | | | |
| Filter | 0 0 0 0 0 1 1 1 1 1 1 1 | Command
|_______________|_______________________________________________|
Filter Chooses which interference algorithm should be run. See Section 5.1.4 for a de-
scription of the available algorithms.
0: None (Interference filtering is disabled)
1: Alg.1 (Traditional JMA Algorithm)
2: Alg.2 (Alg.1 optimized for additive interference)
3: Alg.3 (Alg.2 with better statistics)
We recommend that you choose Alg.3 for general operational use. The other algo-
rithms are included mostly for historical reasons.
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| | | | | | | | | | | | | | | | |
| Threshold Parameter “C1” in Hundredths of deciBels | XARG 1
|_______________________________________________________________|
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| | | | | | | | | | | | | | | | |
| Threshold Parameter “C2” in Hundredths of deciBels | XARG 2
|_______________________________________________________________|
6.23 Set AFC level (SETAFC)
This command sets the AFC level to a given value. The signed 16-bit span is identical to
GPARM Output #51 which shows the present AFC level, i.e., corresponding to the –100% to
+100% AFC range that is defined in the Mb menu. The RVP8 will automatically convert the
new level into whatever analog or digital AFC output format has been configured. The only
exception is for the Motor/Integrator type of AFC loop, in which case this command does
nothing.
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| | | | | | | | | | | | | | | | |
| | 0 0 0 0 1 0 1 1 1 1 1 1 | Command
|_______________|_______________________________________________|
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| | | | | | | | | | | | | | | | |
| 16–Bit AFC/MFC Value (–32768 through +32767) | Input 1
|_______________________________________________________________|
6.24 Set Trigger Timing Slew (SETSLEW)
The Mt menu allows you to select a subset of triggers that can be slewed “left” and “right” in
order to place the burst pulse accurately at range zero. This command allows you to manually
set the present amount of slew. The input argument is in hundredths of microseconds, i.e.,
ranging from –327.68sec to +327.67sec. The actual span permitted by the RVP8 is +20sec.
This is the same format used in GPARM Output #56 which shows the present slew value.