Commands Listed in Alphabetical Order
Examples
RF:MEASUre:AC
PR:CHANSPACing 5.0000E+6
sets the ACPR channel
center-to-center spacing between the Main channel and the side channels to
5.0000E+6 MHz.
RF:MEASUre:ACPR:CHANSPACing? might return 5.0000E+6, indicating the
ACPR channel spacing has been set to 5 MHz.
RF:MEASUre
:ACPR:LA1DB? (Query Only)
This query measures a ratio between the first lower adjacent side channel andthe
Main channel when performing ACPR measurements. The power in the adjacent
channel i
s equivalent to the power in the main channel (dBm) added to the power
ratio (dB) of the adjacent channel. (The RF measurement type must be set to
ACPR using the command RF:MEASUre:TYPe.)
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
RF
Syntax
RF:MEASUre:ACPR:LA1DB?
Related Commands
RF:
MEASUre:ACPR:ADJACENTPAIRs, RF:MEASUre:ACPR:CHANBW,RF:
MEASUre:ACPR:CHANSPACing, RF:MEASUre:ACPR:POWer?,
RF:MEASUre:ACPR:LA2DB?, RF:MEASUre:ACPR:LA3DB?,
RF:MEASUre:ACPR:UA1DB?, RF:MEASUre:ACPR:UA2DB?,
RF:MEASUre:ACPR:UA3DB?
Examples
RF:MEASUre:ACPR:LA1DB might return –30.000, indicating that the Lower Area
1 side channel (left side of Main channel) has 1/1000 the power of the Main
channel.
If the main channel power is –41.0dBm and
:RF:MEASUre:ACPR:LA1DB returns
–12.0 dB, then the actual power in the adjacent channel is –41.0dBm + –12.0 dB
or –53.0dBm.
RF:MEASUre:ACPR:LA2DB? (Query Only)
This query measures a ratio between the second lower side channel and the
Main channel when performing ACPR measurements using a frequency domain
trace. The power in the adjacent channel is equivalent to the power in the main
channel (dBm) added to the power ratio (dB) of the adjacent channel. (The RF
measurement type must be set to ACPR using the command RF:MEASUre:TYPe.)
2-554 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
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