MDO3000 Programmer Manual.pdf - 第585页

Commands Listed in Alphabetical Order Conditions MDO3000, MDO40 00/B, or MDO4000C models with option SA3 or SA6 only . Group RF Syntax RF:MEASUre:AC PR:LA2DB? Related Commands RF:MEASUre:ACPR:ADJACENTP AIRs , RF:MEASUre:…

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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
Commands Listed in Alphabetical Order
Conditions
MDO3000, MDO40
00/B, or MDO4000C models with option SA3 or SA6 only.
Group
RF
Syntax
RF:MEASUre:ACPR:LA2DB?
Related Commands
RF:MEASUre:ACPR:ADJACENTPAIRs, RF:MEASUre:ACPR:CHANBW,
RF:MEASUre:ACPR:CHANSPACing, RF:MEASUre:ACPR:POWer?,
RF:MEASUre:ACPR:LA1DB?, RF:MEASUre:ACPR:UA1DB?,
RF:MEASUre:ACPR:UA2DB?, RF:MEASUre:ACPR:UA3DB?
Examples
RF:MEASUre:ACPR:LA2DB might return –30.000, indicating that the Lower Area
2 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:LA2DB returns
–12.0 dB, then the actual power in the adjacent channel is –41.0dBm + –12.0 dB
or –53.0dBm.
RF:MEASUre:ACPR:LA3DB? (Query Only)
This query measures a ratio between the third 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.)
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
RF
Syntax
RF:MEASUre:ACPR:LA3DB?
Related Commands
RF:MEASUre:ACPR:ADJACENTPAIRs, RF:MEASUre:ACPR:CHANBW,
RF:MEASUre:ACPR:CHANSPACing, RF:MEASUre:ACPR:POWer?,
RF:MEASUre:ACPR:LA1DB?, RF:MEASUre:ACPR:LA2DB?,
RF:MEASUre:ACPR:UA1DB?, RF:MEASUre:ACPR:UA2DB?,
RF:MEASUre:ACPR:UA3DB?
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-555
Commands Listed in Alphabetical Order
Examples
RF:MEASUre:AC
PR:LA3DB
might return –30.000, indicating that the Lower Area
3 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:LA3DB returns
–12.0 dB, then the actual power in the adjacent channel is –41.0dBm + –12.0 dB
or –53.0dBm.
RF:MEASUre:ACPR:POWer? (Query Only)
This query returns the measure of the total RF power in the Main channel within
the chann
el bandwidth when performing ACPR measurements using a frequency
domain trace. It uses the units that have been selected with the command
RF:UNIts. 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:POWer?
Related Commands
RF:MEASUre:ACPR:ADJACENTPAIRs, RF:MEASUre:ACPR:CHANBW,
RF:MEASUre:ACPR:CHANSPACing, RF:MEASUre:ACPR:LA1DB?,
RF:MEASUre:ACPR:LA2DB?, RF:MEASUre:ACPR:LA3DB?,
RF:MEASUre:ACPR:UA1DB?, RF:MEASUre:ACPR:UA2DB?,
RF:MEASUre:ACPR:UA3DB?
Examples
RF:MEASUre:ACPR:POWer? might return –20.0000, in whatever units have
been selected using RF:UNIts.
RF:MEASUre:ACPR:UA1DB? (Query Only)
This query measures a ratio between the first upper 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 t
o ACPR using the command RF:MEASUre:TYPe.)
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
2-556 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual