User's Manual Part 2
Host Computer Commands
RVP8 User’s Manual
May 2003
6–41
The linear intervening gas attenuation correction (See SOPRM) is always added to the
reflectivity data, regardless of whether default or custom range normalization is in effect. If this
is undesirable, the intervening gas slope should be set to zero.
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| | 1 0 1 0 1 | Command
|___________________________________________|___________________|
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| Signed Hundredths dB of Range Normalization for Range 0.01 km | Input 1
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.
.
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| Signed Hundredths dB of Range Normalization for Range 1000 km | Input 251
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6.19 Read Back Internal Tables and Parameters (RBACK)
This command permits some of the RVP8 internal tables to be read back for confirmation and
diagnostic purposes. This command would not generally be used during normal data acquisition
and processing.
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| | Data to Show | | 1 0 1 1 0 | Command
|_______________|_______________|___________|___________________|
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| Number of words to output | Input 1
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The data that can be returned are:
0 Full operational parameter table from last SOPRM command.
1 Ray history array consisting of six words per ray for the last 40 rays (in reverse
time order) that were processed. Each six-word group holds
a. Actual number of samples that went into the ray
b. Time since the last ray (in tenths of ms)
c. Ending azimuth TAG bits
d. Ending elevation TAG bits
e. Starting azimuth TAG bits
f. Starting elevation TAG bits
2 Angle sync table from last LDSYNC command.
4 Filter selection array from the last LFILT command.
6 Custom range normalization from last LDRNV command.
7 Samples of the TAG input lines at 4ms intervals. The sampling begins at the mo-
ment the RBACK command is received, and continues until the output count is
reached. Each 32-bit sample is output as a pair of 16-bit words: