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General description of the
used AGILENT 70903A
for sale.
The HP 70903A intermediate frequency (IF) section provides signal processing elements required for the spectrum analyzers, lightwave signal analyzers, and the GSM testers. It 1/8-width module for 70000 Modular Measurement System (MMS). The HP 70903A provides 100 kHz to 3 MHz resolution bandwidths. Maximize measurement speed using 10% incremental bandwidths. Wider 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. Four detection modes are available to properly display a variety of signals. Auxiliary video output: BNC (f), 0-1 V, 1 kohm (nominal), front panel. 21.4 MHz IF output (linear): BNC (f), 50 ohm, 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. Logged 8MB (m) logarithmically related to RF input, rear panel. Linear AGC Video Leveled output: 1 V, 50 ohms, 8MB (m) (nominal). Distortion (-30 dBm input, 90% AM, Fmod = 10 kHz): <8% THD. AGC attack time (periodic signals): 30 us. AGC decay time (periodic signals): 300 ms.
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