Agilent Technologies N8201A Service Manual Page 185

  • Download
  • Add to my manuals
  • Print
  • Page
    / 622
  • Table of contents
  • TROUBLESHOOTING
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 184
Input/Output 9
Agilent N8201A Performance Downconverter Synthetic Instrument Module, 250 kHz to 26.5 GHz 185
RF Coupling
Specifies alternating current (AC) or direct current (DC) coupling at the N8201A RF input
port. Selecting AC coupling switches in a blocking capacitor that blocks any DC voltage
present at the N8201A input. This decreases the input frequency range of the N8201A, but
prevents damage to the input circuitry of the N8201A if there is a DC voltage present at the
RF input.
In AC coupling mode, signals less than 20 MHz are not calibrated. You must switch to DC
coupling to see calibrated frequencies of less than 20 MHz.
Some amplitude specifications apply only when coupling is set to DC. Refer to the
appropriate amplitude specifications and characteristics for your N8201A.
When operating in DC coupled mode, ensure protection of the input mixer by limiting the
input level to within 200 mV of 0 Vdc. In AC or DC coupling, limit the input RF power to +30
dBm.
Key Path: Input/Output
Dependencies/Couplings: In external mixing mode, input port and RF coupling
selection are not available.
State Saved: Saved in Instrument State
Factory Preset: AC
Remote Command:
:INPut:COUPling AC|DC
:INPut:COUPling?
Example:
INP:COUP DC
Page view 184
1 2 ... 180 181 182 183 184 185 186 187 188 189 190 ... 621 622

Comments to this Manuals

No comments