Setting the Pass/Fail Limits

The measurement limits setting enables you to alter the value of the upper and lower test limits. The settings you choose define the location of the limit lines displayed on the screen. These settings affect the color of the bar graph display and the measured value: red represents fail, green represents pass, and blue indicates that the limits are turned off.
 Power Limits: Sets the high and low limits of the channel power. Limits are set in dB and are relative. Any channel value that is outside of the set limits will result in a failure indication.
 Frequency Limits: Sets the high and low frequency limits for each channel. Limits are set in Hz. These settings affect the display color as indicated above, but there are no limit lines shown on the display.
 To Set the Measurement Upper and Lower Limits:

Step
 		Notes
1
 		[Setup]
2
 		[Limits]

3
 		[Power Limits]

3
 		On [Power Limits] select On or Off.
Enables you to toggle the measurement limits function On (active) and Off (inactive).
  • If set to On, upper and lower limit lines are displayed on the screen. Any measured channel value that exceeds the upper limit or is less than the lower limit will result in a failure indication for that value.
  • If set to Off, the channel power value will be displayed in blue. The bar graph will be blue if neither Power or Frequency Error Limit has been set to On.
Note: the screen will only display values and pass/fail indications for one set of limits at a time. If you have Frequency limits turned on then choose to turn on Power limits, the Frequency limits will turn off.
4
 		Set the upper limit.
  1. [Power High Limit]
  2. Enter the number on the numeric keypad.
  3. [dB]
Maximum Upper limit: top of display
5
 		Set the lower limit.
  1. [Power Low Limit]
  2. Enter the number on the numeric keypad.
  3. [dB]
Maximum Lower Limit: bottom of display
6
 		On [Freq Error Limits] select On or Off.
Enables you to toggle the measurement limits function On (active) and Off (inactive).
  • If set to On, the displayed channel frequency and the bar graph will change from blue to red (fail) or green (pass). Any measured value that exceeds the upper limit or is less than the lower limit will result in a failure indication for that value.
  • If set to Off, the channel freq/number value will be displayed in blue. The bar graph will be blue if neither Power or Frequency Error Limit has been set to On
Note: the screen will only display values and pass/fail indications for one set of limits at a time. If you have Power limits turned on then choose to turn on Frequency limits, the Power limits will turn off.
4
 		Set the upper limit.
  1. [Frequency High Limit]
  2. Enter the number on the numeric keypad.
  3. [GHz], [MHz], [kHz], or [Hz]
Maximum Upper limit: 1 GHz
 Minimum Upper limit: 0.0 GHz
5
 		Set the lower limit.
  1. [Frequency Low Limit]
  2. Enter the number on the numeric keypad.
  3. [GHz], [MHz], [kHz], or [Hz]
Maximum Lower limit: 0.0 Hz
 Minimum Lower limit: -1 GHz