HP 70904A RF Section, 100 Hz to 2.9 GHz

The HP 70904A RF section provides the 100 Hz to 2.9 GHz broadband input conversion for the HP 71100C spectrum analyzer and HP 71401C lightwave signal analyzer. The HP 70904A RF section contains an input attenuator and a mixer. The RF mixer converts the incoming RF signals to the intermediate frequency (IF) for further processing. The broadband, low noise mixer offers the performance needed to make high dynamic range measurements. The input attenuator can be automatically coupled either to the reference level for mixer protection or to the highest mixer level to maximize dynamic range. The input attenuator varies from 0 to 70 dB in 10 dB steps. Option H25 has 5 dB step attenuators. If you need to probe your circuit, you can drive the probe using the connection available on the front panel. High impedance probes, such as the HP 41800A and 85024A, are available. A buffered LO output is available to drive tracking generators or other modules such as the external mixer interface module.

[ Features ]

100 Hz to 2.9 GHz broadband input conversion
Input attenuator varies from 0 to 70 dB in 10 dB steps
Probe connection on the front panel

[ Specifications ]

General Specifications
Inputs/Outputs
RF Input (100 Hz to 2.9 GHz):	type N, 50 ohms (nominal), front panel
  LO Emissions:			< -100 dBm (10 dB attn)
    VSWR (>10 dB attn):		< 1.3:1 (nominal)
    VSWR (O dB attn):		< 2.9:1 (nominal)
Probe Power Output:		15 V, -12 V and ground, 150 mA maximum,
				front panel
First LO Auxiliary Output:	SMA (m), rear panel, 50 ohms (nominal)
Frequency Range:		3.0 - 66 GHz
Power Range:			+1.5 dBm to 12 dBm

[ Ordering ]

HP 70904A RF Section Opt 1BH General Export License Opt 1BN Certificate of Calibration Opt lBP Certificate of Calibration and Data Opt 910 Extra User's Manual Opt 915 Service Manual Set HP 70860Aš HP 70861Aš šIf this module will be installed into an existing system, a firmware upgrade may be required. Modules with firmware version B.04.02 (920325) and earlier require upgrade HP 70860A. Modules with later version firmware may use upgrade HP 70861A. For more information see service note 70900A-14L / 70900B-01G.

[ Assistance ]

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