Agilent Technologies N5171B User Manual

336 Agilent X-Series Signal Generators SCPI Command Reference
Arb Commands
Two Tone Subsystem–N5172B/82B ([:SOURce]:RADio:TTONe:ARB)
:NOISe:EBNO
Supported N5172B/82B with Option 403
[:SOURce]:RADio:TTONE:ARB:NOISe:EBNO <ebno in dB>
[:SOURce]:RADio:TTONE:ARB:NOISe:EBNO?
This command allows the C/N to be set using the E
b
/N
0
(energy per bit over noise power density at
the receiver) form. This requires that the carrier bit rate ( :NOISe:CBRate on page 334) be set
properly. The range of E
b
/N
0
is limited to the range that is equivalent to –100 to 100 dB of C/N. This
value is only effective when E
b
/N
0
has been enabled by the :NOISe:CNFormat command.
The query returns the value of EBNO.
Default 0 dB
Range –100 to 100 dB
Key Entry Carrier to Noise Ratio Format E
b
/N
o
:NOISe:MUX
Supported N5172B/82B with Option 403
[:SOURce]:RADio[1]:TTONe:ARB:NOISe:MUX SUM|CARRier|NOISe
[:SOURce]:RADio[1]:TTONe:ARB:NOISe:MUX?
This command enables diagnostic control of additive noise, such that only the noise, only the carrier,
or the sum of both the noise and the carrier are output from the internal baseband generator. With
the ALC off, this feature enables direct measurement of just the carrier or the noise contributions to
the total power. The system will still behave as if both the noise and the carrier are present on the
output when it comes to determining the Auto Modulation Attenuation and the RMS level for RMS
Power Search.
Example
:RAD:TTON:ARB:NOIS:MUX CARR
The preceding example enables the direct measurement of the carrier contribution to the total power.
Default Carrier+Noise
Key Entry Carrier+Noise | Carrier | Noise
:NOISe:POWer:CARRier
Supported N5172B/82B with Option 403
[:SOURce]:RADio:TTONe:ARB:NOISe:POWer:CARRier <carrierPower>
[:SOURce]:RADio:TTONe:ARB:NOISe:POWer:CARRier?
This command sets the current carrier power level if noise is on.
In the CARRier control mode, the total power will be adjusted to achieve the specified carrier power
and the carrier power level will be maintained regardless of changes to the other noise parameters. A
change to the total power will change the carrier power setting appropriately to maintain the C/N
ratio.

Agilent Technologies N5171B Specifications

General

Brand	Agilent Technologies
Model	N5171B
Category	Computer Hardware
Language	English