HP 70902A IF Section, 10 Hz to 300 kHz

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The HP 70902A provides narrow resolution bandwidths, from 10 Hz to 300 kHz and can be used in any of the configured systems. This intermediate frequency (IF) section provides signal processing elements required for spectrum analyzers and lightwave signal analyzers. The HP 70902A maximizes measurement speed using 10% incremental bandwidths. Wide bandwidths offer the most speed, whereas narrow bandwidths offer more resolution and sensitivity. The 10% incremental bandwidth steps offer you the best choice of bandwidth sizes. The bandwidths can also be changed in a 1, 3, 10 sequence. Calibrated logging amplifiers provide superb amplitude accuracy for the analyzers. The 3 MHz IF output on the HP 70902A allows connection to other instruments such as demodulators, digitizers, and oscilloscopes.


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General Specifications

Inputs/Outputs
Auxiliary Video Output:       BNC (f), 0 to 1 V, 1 k ohms (nominal), front panel
3 MHz IF Output (linear):     BNC (f), 50 ohms, 1.5:1 VSWR (nominal),
                              front panel
Output Power:                 -15 dBm nominal with -10 dBm RF input,
                              0 dB attn and -10 dBm reference level
Limited IF Output:            SMB (m), 1±0.5 Vp-p (nominal), rear panel

Linear AGC Video Output
Leveled Output:               1 V, 50 ohms, SMB (m) (nominal)
Distortion (-30 dBm input, 90% AM, Fm(mod) = 10 kHz):
                              <8% THD
AGC Attack Time (periodic signals):
                              30 micros
AGC Decay Time (periodic signals):
                              300 ms


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HP 70902A     IF Section, 10 Hz to 300 kHz
   Opt 910    Extra User's Manual Set
   Opt 915    Service Manual Set
HP 70860A1    HP 70861A1

1If 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.

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No literature is available online at this time.

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