Tektronix 494P Spectrum analyser

500.-

10.05.2026

1009, Pully

Tektronix 494P spectrum analyser. High Displays calibration signal, however produces errors in some control settings. Therefore for sale as defective and without guarantee. Collection only from Pully as it's very heavy!

The Tektronix 494 is a spectrum analyzer with a frequency range of 10 kHz to 21 GHz in coax, and up to 325 GHz with external waveguide mixers. The P suffix designation indicates GPIB Programmability.

Key Specifications
Frequency Range
10 kHz to 1.8 GHz
1.7 GHz to 5.5 GHz
3 GHz to 7.1 GHz
5.4 GHz to 18 GHz
15 GHz to 21 GHz
Frequency span 50 Hz/Div to 500 MHz/Div in 125 sequence, plus 0 Hz and MAX
Resolution bandwidth 30 Hz, then 100 Hz to 1 MHz in decade steps (-6 dB)
RF input 50 , max. +30 dBm (1 W) CW or 75 W peak pulse (1 µs, 0.1% duty factor)
RF attenuator 0 dB to 60 dB, 10 dB steps
Reference level 117 dBm to +40 dBm
Sweep 10 sec/div to 20 µs/div in 1, 2, 5 sequence
Video filter Normal, Wide: 1/30, or Narrow: 1/300 of resolution bandwidth
Triggering modes Free Run, Line, Video, Single, External
Display dynamic range 80 dB
Calibrator 50 , 20 dBm ±0.3 dB at 100 MHz
Power 90 132 VAC, 48 to 440 Hz; 180 250 VAC, 48 to 440 Hz, 210 W max
Weight 24 kg (52 lbs) with standard accessories