The Zelscope application was designed to convert your PC into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit.

Zelscope features the interface of a traditional oscilloscope, with conventional gain, offset, timebase, and trigger controls. As a real-time spectrum analyzer, Zelscope can display the amplitude and phase components of the spectrum.

Limitations:

· 14 days trial


Here are some key features of "Zelscope":

· General features
· Responsive real-time display, up to 50 fps refresh
· Single trace, dual trace, and XY (Lissajous) modes
· Bandwidth: 10 Hz - 20 kHz, AC coupling
· Timebase: 10 us - 5 s
· 8-bit and 16-bit acquisition, 11 kHz to 44 kHz sampling rate
· Spectrum analyzer: amplitude and/or phase

· Data export
· Raw data export as WAV file
· Screenshots can be saved in BMP and EMF formats
· Visible trace(s) can be saved as text file
· Copy-paste function for screenshots or data files
· Printing

· Triggering
· Adjustable trigger level, slope, and delay
· Pretrigger view
· Single shot triggering mode

· On-screen measurement
· Two cursors set by left and right click
· Voltage and time difference readout
· Direct frequency readout


Requirements:

· 300 MHz or faster PC, 64MB RAM, 1MB of disk space
· sound card