Measurement Mode: Measure R series or parallel; L and Q series or parallel; C and D series or parallel.  All measurement modes are pushbutton selectable.

Displays: LED-type numerical display with automatically positioned decimal points and illumination of units.  For R LC, five digits (99999) and simultaneously for DQ, four digits (9999).

Measurement Speed: Greater than 3 measurements per second.

Test frequencies: Pushbutton selection between 2.  Accuracy re panel legends: +2%, -.01%, Actual frequencies: for 1657-9700, 1020.0 Hz +/- .01% (panel legend "1kHz") and 120.0 Hz +/- 0.1%

Applied Voltage: 0.3 V rms maximum

Ranges: Pushbutton selection with automatic front-panel guidance.  Three basic ranges (best accuracy, see table) of 2 decades each, for each parameter.  Automatic extensions to min and max, as tabulated.

These specs are from when QuadTech acquired the GenRad line.  They are probably the same, but I'm not 100% certain: staging.torontosurplus.com/tes/DataSpec/1657_specs.pdf