Presel Adjust; Internal Preamp; Ref Position - Agilent Technologies X Series Manual

Presel Adjust

Allows you to manually adjust the preselector filter frequency to optimize its response to the signal of
interest. This function is only available when Presel Center is available.
This key does not appear in model numbers which do not contain an internal preselector (such as option
503 or all versions of the N9000A). Attempts to set via SCPI will be accepted without error. Queries will
always return 0.
See "Preselector Adjust" on page 369
This key is only available when the selected input is RF.
Key Path
Initial S/W Revision

Internal Preamp

Accesses keys that control the internal preamps. Turning on the preamp gives a better noise figure, but a
reduced TOI to noise floor dynamic range. You can optimize this setting for your particular
measurement. The Low Band selection needs to show "(3.0 GHz)" for all versions of N9000A and "(3.6
GHz)" for the other models.
For more information, see
This key is only available when the selected input is RF.
Key Path
Initial S/W Revision

Ref Position

Positions the reference level at the top, center or bottom of the Y Scale display. Changing the reference
position does not change the reference level value.
Ref Position (RF Envelope View)
Positions the reference level at the top, center or bottom of the Y Scale display. Changing the reference
position does not change the reference level value.
Key Path
Mode
for more information.
AMPTD Y Scale
Prior to A.02.00
"Internal Preamp" on page
AMPTD Y Scale
Prior to A.02.00
AMPTD Y Scale
BASIC, PN, WCDMA, C2K, GSM, WIMAX OFDMA, TD-SCDMA,
1xEV-DO, DVB-T/H, DTMB (CTTB), ISDB-T, CMMB, LTE, LTETDD,
Digital Cable TV
381.
Waveform Measurement
AMPTD Y Scale
285