067-0938-00

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Tektronix 067-0938-00
notch filter calibration fixture
Tektronix 067-0938-00

Produced from (?) to (?)

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 067-0938-00 is a notch filter calibration fixture plug-in for the TM500 system.

It is used for measuring the distortion (spectral impurity) of an oscillator by eliminating the fundamental frequency of the oscillator (primarily the SG505), so the residual harmonics can be measured.

The circuit topology is a passive double-T RC notch filter with a precision 600 Ω load and a 60 dB attenuator. The module has no connections to the TM500 mainframe, requiring no power supply.

Key Specifications

Notch frequency 10 Hz, 20 Hz, 100 Hz, 1 kHz, 10 kHz, 20 kHz, 50 kHz, 100 kHz; ±2%
Notch depth ≥100 dB at 10 Hz and 20 Hz, ≥60 dB otherwise

Load impedance must be ≥1 MΩ ±5% // ≤75 pF including cabling and spectrum analyzer input capacitance. Input source impedance must be 600 Ω ±5%.

Links

Photos