Radio-SkyPipe Help

Strip Chart 

Chart Width

Indicates the desired width of the strip chart viewing area in seconds. 

Y Axis Max

This is the upper value to which the Y axis of the strip chart will be set when Y Axis Autoscaling is not selected, (see Y Axis Autoscale below).  Normally you would set this value based upon the expect upper value from your soundcard or ADC.  The MAX187 and MAX186 ADCs have an upper value of 4095 (representing 4.095 volts). The upper value for a 16 bit soundcard is normally 32767.

Y Axis Autoscale

Place a check in this box to enable automatic scaling of the strip chart Y axis to the sampled data range.  The height of the chart will then change to accommodate the largest value in the current chart.  While convenient for displaying a chart of an unknown range of values, autoscaling causes you to lose control of the displayed Y axis range while the strip chart is "running", that is, actively taking in new samples.

Update Server/StandAlone Chart Every ____ Samples

One of the most time consuming tasks the computer must perform is redrawing the chart each time a new data point arrives. You can improve performance by updating the chart only after a selected number of samples has been collected. This does not directly affect the sample rate except that it may allow you to sample faster than you might be able to sample when continually updating the chart viewing area for every sample. If for example, you set this chart update value to 10 and and had a sample period of 50 ms. then the chart would be redrawn each 10*50  = 500 ms.. All of the data points would be displayed. Nothing would be lost, only the chart would appear a little less smooth in its scrolling.

Update Client Client Chart Every ____ Samples

If your computer is having trouble keeping up with the strip chart data stream arriving from a remote R-SP strip chart server, you may find improved performance by setting this value to something higher than 1 (one). No data will be lost by doing this (and in fact, data may be captured which would otherwise be lost), however, the time that the computer must devote to drawing the strip chart is greatly reduced by a factor proportional to the value you choose.  This is not usually necessary for slow data rates.

One Click Auto Increment
The value you put in this box will determine the amount by which the screen updates when using the One Click Arrow Buttons. For example if 50 (%) is entered, then clicking the right arrow button will advance the X axis by 50% of its current span. If one hour of data was displayed, the time coordinates would be advanced by 30 minutes.

Key Press Averaging Period
You can find the an average value for live data arriving in a chart over a period of X seconds by pressing the ALT key and a number key corresponding to the channel number you want to average. For example, pressing ALT and the "2" key will begin calculating the incoming average for channel 2.  The duration in seconds for the averaging is the Key Press Averaging Period.

The Grid/Ticks Button

Pressing this button brings up the screen below where you can configure some of the charts appearance:

Make sure the chart pen style and grid style selections are actually highlighted (by clicking in the box) before saving.

The Channel Labels Button

You may apply color coded labels to be optionally viewed on the chart.  These labels would ordinarily give a very short description of what the channel data references. When the chart is displayed you make these labels visible by selecting View/Channel Legend.

The Colors Button

Click in the appropriate box to bring up a color palette to make your color selection. 

Channel Offsets

Radio-SkyPipe Pro version users can define default channel offsets which can be applied to their charts. This is most useful for multi-channel charts.  Click the Channel Offsets button for a small panel to define the individual channel offset values.  

The Use Offsets checkbox must be checked for the offsets to be automatically applied whenever a chart is started in Stand Alone or Server mode.  To send these offsets to clients, and thus separate the channels on their screens as they receive your data, check the Send Offsets to Clients checkbox.

Axis Labels

Optional X and Y axis labels may be applied by default to your charts. Pushing the Axis Labels button brings up the following panel:

You may also access this panel from the menu bar on the main window of the program under View / Chart Text /XY Axis Labels.

File Loading Options Button

This panel determines whether or not a file will be loaded with the offsets that are locally applied by this configuration of Radio-SkyPipe, and whether or not to apply the offsets that were used when the data was saved by this or another instance of the program. Optionally, you display whether or not to prompt for these whenever you load a file.

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