Spectrum Analyzer Measurement Guide : Interference Analyzer (Option 25) : Measurements Menu : ACPR Menu
 
ACPR Menu
Key Sequence: Measurements > Spectrum > Power and Bandwidth > ACPR
IA ACPR Menu
 
On/Off
Begins or ends the ACPR measurement.
Main Ch BW
Sets the bandwidth of the main channel for ACPR measurement. Use the keypad, the directional arrow keys, or the rotary knob to enter a specific frequency. When using the keypad, press the GHz, MHz, kHz, or Hz submenu key to accept the frequency input. Changing this value automatically changes the adjacent channel bandwidth and channel spacing.
Adj/Alt Ch BW
Sets the bandwidth of the adjacent channels for ACPR measurement. Use the keypad, the directional arrow keys, or the rotary knob to enter a specific frequency. When using the keypad, press the GHz, MHz, kHz, or Hz submenu key to accept the frequency input.
Ch Spacing
Sets the channel spacing between the main and adjacent channels. Use the keypad, the directional arrow keys, or the rotary knob to enter a specific frequency. When using the keypad, press the GHz, MHz, kHz, or Hz submenu key to accept the frequency input. This value must be greater than or equal to half of the main channel bandwidth, plus half of the adjacent channel bandwidth. The up and down arrows change the frequency by the frequency step size entered in the Freq (Frequency) Menu. The left and right arrow keys change the value by 10% of the span.
Span
Sets the span for ACPR measurement. Use the keypad, the directional arrow keys, or the rotary knob to enter the span.
ACPR Limits On/Off
Press this submenu key to turn ACPR Limits on and off.
ACPR Limits
Brings up the ACPR Limits submenu. See Figure: ACPR Limits Submenu Keys.
Back
Returns to the Power and BW Menu.
 
 
ACPR Limits Submenu Keys
Use this submenu to set upper limits to the following parameters:
Main Channel Pwr
Sets the main channel power level. Use the numeric keypad, directional arrow keys, or the rotary knob to change the power value. When using the keypad, press the unit submenu key (dBm, for example) to accept the power value.
ACPR Upper Adj
Sets the ACPR upper adjacent channel power value. Use the numeric keypad, directional arrow keys, or the rotary knob to change the value. When using the keypad, press the unit submenu key (dB) to accept the entered value.
ACPR Lower Adj
Sets the ACPR lower adjacent channel power value. Use the numeric keypad, directional arrow keys, or the rotary knob to change the value. When using the keypad, press the unit submenu key (dB) to accept the entered value.
ACPR Upper Alt
Sets the ACPR upper alternate channel power value. Use the numeric keypad, directional arrow keys, or the rotary knob to change the value. When using the keypad, press the unit submenu key (dB) to accept the entered value.
ACPR Lower Alt
Sets the ACPR lower alternate channel power value. Use the numeric keypad, directional arrow keys, or the rotary knob to change the value. When using the keypad, press the unit submenu key (dB) to accept the entered value.
Back
Returns to the ACPR Menu.