Codogram Display
Switching to the Codogram view adds the third dimension of time to the display. That is, you can view code domain power (sorted by either MAC Index or be Walsh Code) over time. MAC Indexes or Walsh Codes are displayed against the horizontal X-axis, time is represented on the vertical Y-axis, and signal strength is indicated by the color - low power signals are represented by the cooler, blue end of the spectrum, and high power signals by the warmer, red end of the spectrum.
The codogram plot rises over time until it fills the graphical section of the display. Your most recent data appears at the bottom of the display, and your oldest data (several minutes ago to several hours ago, depending on your settings) appears at the top of the display. In this way, you can clearly see the changes in power that occur over a period of time.
The Update Interval is the interval, measured in whole seconds, between successive records displayed on the codogram. In other words, if you set the update interval to 5 seconds, the codogram display will not update until the after the first complete measurement following a gap of five seconds. Alternatively, you can set the update interval to provide the maximum data collection speed by pressing [Max Speed], or by setting the update interval to 0 (zero) seconds.
NOTE: It is not always possible for the analyzer to match the update interval you specify. It is possible, for example, to set your update interval to zero seconds (the maximum speed), and then to find that the analyzer can not update any faster than once every two seconds.
You can clear your screen and start a fresh codogram display by pressing the Reset Codogram key. Changing the units of the X-axis (for example, by changing CDP Type, or by switching from MAC to Walsh Code) also clears and resets the codogram.