Quick auto setup (CH1, CH2)

SS-7847A/7840A/7830A/7821A/7811A/7810A

Input signals are quickly shown in the optimum range.

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Frequency counter

All models 6-digit: SS-7847A/7840A/7830A, 5-digit: SS-7821A/7811A/7805A/7802A

The built-in 6/5-digit counter is accurate within a range of ±0.0025% / ±0.01% and can measure frequencies between 2Hz and 400MHz. Also shows the trigger signal frequencies.

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DC offset function (CH1, CH2)

SS-7847A/7840A/7830A

Convenient when you need to observe a signal with very small amplitude superimposed over a signal with large amplitude. Especially useful when observing high-frequency noise superimposed over video signals or ripple of high-voltage DC power supply.

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TV/HDTV triggering

TV: All models, HDTV: SS-7847A/7840A/7830A/7821A/7811A/7810A

TV-V field (EVEN, ODD, BOTH) and line selection is possible for HDTV, NTSC, PAL/SECAM, meeting the needs of engineers who want to observe HDTV signals without any attenuation (even as low as 0.1 dB).

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Pedestal clamp function (CH1, CH2) for TV signals

SS-7847A/7840A/7830A

The amplitude of video signals varies dynamically depending on the picture. This function ensures stable observation.

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CH2 skew adjust

SS-7847A/7840A/7830A

The delay time of CH2 in response to CH1 can be adjusted with a range of 1 ns. Therefore, accurate measurement is possible by compensating for the delay time difference between the probes.

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DC - 470MHz/400MHz/300MHz (all channels),
high-sensitivity of 2 mV/div (CH1, CH2)

DC - 470MHz (SS-7847A)/DC - 400MHz (SS-7840A)/DC - 300MHz (SS-7830A) for all channels. CH1 and CH2 have max. sensitivity of 2 mV/div, ensuring extremely high-quality waveforms.

IWATSU-developed bright, sharp CRT (Japan made)

SS-7847A/7840A/7830A/7821A/7811A/7810A/7805A

Features superlative brightness and sharpness that even allows you to easily observe signals with slow repetition and a high-speed rise time transition.

IWATSU-developed preamp IC for improved signal stability

All models

To increase signal stability, a preamp circuit has been provided for the IC.

Panel settings save/recall function

SS-7847A/7840A/7830A (SS-7821A/7811A: up to 32 setups)

Up to 256 panel setups can be saved together with comments (up to 12 characters).

Event trigger

SS-7847A/7840A/7830A

In addition to the event delay trigger which allows you to trigger events a specified number of times (1 - 65,535), there's also a burst trigger mode which allows you to easily trigger a burst signal -- something that is difficult to do with an ordinary oscilloscope.

Probe power supply provided as standard

SS-7847A/7840A/7830A

Two probe power supplies are provided for FET probe. The DC offset voltage of each FET probe can be controlled (with DC offset control).