If you get the "Sorry, the file cannot be displayed. There seems to be a technical issue ..." error when trying to view an image, a workaround is to click on the cog icon in the upper right side of the media viewer, and then select "Disable Media Viewer". We are aware of the problem and are looking for a solution.
The Tektronix 494 is a portable, stand-alone Spectrum Analyzer introduced in 1985 that covers 10 kHz to 21 GHz.
- Tek 494 494P Operator Manual (PDF)
- Tek 494AP Programming Manual (PDF)
- Tek 494A 494AP Operators Manual (PDF)
- Tek 494 494P Programmer Manual (PDF)
- Tek 494A 494AP Service Manual Volume 1 (PDF)