Hello,My boss asked me to evaluate oscilloscopes and to recommend one. I know Tektronix and LeCroy. Which is better? Are they any others? Ideally, we would get a 4-channel scope at 300 MHz, with a 5 million sample record length. Thanks for your advise.T.I.

Agilent scopes are nice, too. Some scope companies have local resellers,which can demonstrate their products at your workplace and even lend you ascope for some days, so you can evaluate it yourself, if it fits yourneeds.-- Frank Buss,

which oscilloscope?

Jun 21, 2008 46 Replies

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rickman 18 years ago

But a logic analyzer is not a scope. It is pretty rare that I need this sort of buffer for an analog waveform. It is a trade off between features you actually need and ones that you will use once in a blue moon.

In fact, I don't feel the need for a 4 input scope anymore. But what I do want is a scope that can work with a logic analyzer. It has been awhile, but I seem to recall analog scopes that have a trigger output on the back which can be used to trigger other devices.

My customer buys PC attached devices. He is very happy with their Intronix logic analyzer. But they have a PC attached scope that he was having trouble figuring out the triggering. I might ask to borrow the scope and see if I can make it work for me.

Rick

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John Larkin 18 years ago

This week I'm finishing up the firmware for a 4-channel arbitrary waveform generator, so a 4-channel scope is perfect.

Next week, I start on the 8-channel version...

John

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Scott Seidman 18 years ago

rickman wrote in news: snipped-for-privacy@m36g2000hse.googlegroups.com:

The Z-input also seems to have disappeared from modern scopes. and I miss it.

Scott Reverse name to reply

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Jan Panteltje 18 years ago

On a sunny day (26 Jun 2008 15:57:58 GMT) it happened Scott Seidman wrote in :

Yes, very valuable:

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Blarp 18 years ago

I want the Y-output back.

To connect an audio amp to.

(it is simply amazing what can be measured by ear! Just sensing e.g. a adress line will make "audible" the software flow in a CPU board.)

My old analog hobby scope has one. And I dearly miss it on the office LeCroy.

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rickman 18 years ago

What can you do with a 4 channel scope that you can't do with a 2 channel one by moving the probe, when testing a 4 channel AWG? This looks to me like the perfect example of why you don't need 4 channels.

Rick

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John Larkin 18 years ago

I can work my way through a list of 265 distinct serial commands, testing each one and its arguments, and watch what happens to all 4 waveform generators after each command, without mating/unmating cables about a thousand times.

John

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