Afonso Teles

<p>HI Xiang,</p> <p></p> <p>No, the arguments should be &quot;CH4_D0&quot; instead of &quot;CH4D_0&quot;.</p> <p>You can always test this by setting the measurement manually on the machine and then querying the command of interest like so: <code>MEASUrement:MEAS1:SOUrce1?</code></p>

Hi Xiang,<br> <br> You'd generally start with the <code>measurement:addmeas phase</code> command, followed by your configuration commands.<br> I would also suggest doing <code>*ESR?</code> to check for errors every time you send a command.&#160; &#160;

Hi,<br> <br> If you aren't seeing a letter after the model number then that's because you have a &quot;non-letter&quot; model, the model is just &quot;DPO70404&quot;.<br> I believe the service manual for this model is no longer on our website, so I have attached it along with this post.<br> <br> The service manual has a procedure for debugging non-functioning power rails, I suggest you follow that and report back if needed.

Hi Yujie,<br> <br> This seems like something better handled by your account manager and field applications engineer, so I've had them contact you privately about this matter.

Hi Evan,<br> <br> That's correct, presuming you won't have rise times approaching the scope rise time (8.4 ns) the scope will have no problem looking at a 450 KHz waveform.

Hi,<br> <br> The waveform data returned by the <code>curve?</code>&#160; query is not a file but an IEE488.2 &quot;block&quot; (also known an arbitrary or binary block), which is defined on page 2-7 and 2-8 of the programmer's manual (attached with this post).<br> The start of the block is a header which tells you the length of the rest of the block. The data in the rest of that block is, by your own choice, RPBinary, which is the trace data (voltage) stored as a positive integer. The R denotes that the most significant byte is sent first, this is only relevant when the each point is more than 1 byte wide, which is not the case for analog channels but is the case for math waveforms, for example.<br> <br> The following index includes examples for transferring and decoding waveform data from a DPO7000 and other similar instruments: <a href="https://forum.tek.com/viewtopic.php?f=580&amp;t=133570">https://forum.tek.com/viewtopic.php?f=580&amp;t=133570</a>

Hi,<br> <br> The oscilloscope is rated for 300 Vrms CATII and 450 Vpeak transients over its entire input range, including the low mV/div scales.<br> If you are below these values, then I would not worry about transients damaging the oscilloscope. If your transients are above 450 Vpeak, then ground coupling wouldn't fix your issue.

Hi,<br> <br> They work the same, the only difference is if they were installed in the factory or after purchase.

Hi Xiang,<br> <br> The MSO4 does not have one single option for protocol analysis, instead it has over a dozen protocol analysis packs to choose from, depending on the protocols you wish to analyze. You can see them all in the &quot;Upgrades&quot; section of the product's page: <a href="https://www.tek.com/en/products/oscilloscopes/4-series-mso">https://www.tek.com/en/products/oscilloscopes/4-series-mso</a>&#160;<br> <br> If you wish to see which licenses are already on your instrument, then you can do so by going into &quot;Help&quot;, &quot;About&quot; and checking your &quot;Installed Options&quot;.<br> <br> In the same link you should be able to request a quote, which will include buying instructions.

Hi Michael,<br> <br> That banner is being automatically applied to all threads in the forum from now on, it is not specific to this thread.