Available subcommands in Pr

These subcommands change the start time and span of the IF sampling window, and alter the format of the display.

Available subcommands:

Available Subcommands within  Pr :
L/l & R/r       Start range Left/Right 
T/t             Plot time span Up/Down
V/v             Number of spectra averaged 
Z/z             Amplitude zoom
<space>         Alternate Plots
> and <         Start/Stop logging to rvp10-pr.log
%               Toggle between IF input channels
-               Single Step 

Pr subcommands

Command	Description
L/l & R/r	Shift left and right the starting point of the window of IF samples. The lower case commands shift in 0.25 μsec steps, and the upper case commands use 10 μsec steps. The starting point is displayed both in microseconds and kilometers on the TTY, and is not allowed to be set earlier than range zero.
T/t	Increments or decrements the time duration of the window of IF samples. The window is not allowed to become shorter than the impulse response length of the FIR filter, since that would preclude calculating even a single LOG power point. The value is reported in microseconds on the TTY, and the largest permitted span is 50 μsec.
V/v	Increments or decrements the number of power spectra that are averaged together to create the plot. The count ranges from one (no averaging) to 25, and is reported on the TTY as Navg.
Z/z	Zooms the amplitude of the IF samples by factors of two from one to 128. The LOG plots are shifted in corresponding 6 dB increments as the amplitude is zoomed up and down. The zoom level is reported on the TTY so that absolute power levels and A/D usage can be assessed.
< space >	The space bar alternates among three choices for the type of data that are plotted: Received Samples, Received Samples and LOG Power, and Received Power Spectrum.
> and <	The live plotted data can be logged to the $(IRIS_LOG)/rvp10–pr.log text file, one line per plot.
%	Toggle between the IFDR IF-Input sources.