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Frequently Asked Questions

DL7100 Signal Explorer
Questions
Data Saving
Computation
Acqusition
Display
Trigger
Search
Probes
Miscellaneous
Questions and Answers
Data Saving
roximately 15 s when saving 4 channels at 1 MW/ch (4 MW total, 8 MB) in the waveform format (*.wvf). This result is obtained when the recommended HDD, Buffalo 4.3 GB HDD by Melco, is used. The time may vary when other HDDs are used.
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Select UNLOAD from the FILE menu. The CLEAR TRACE Key does not delete a loaded waveform.
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Half-pitch 50-pin (pin type).
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The following model has been tested for compatibility. Maker: Melco Model: Buffalo 4.3 GB HDD The file system used on the DL7100 is FAT16. The DL7100 is capable of partitioning the hard disk. Therefore, for external HDDs that are greater than 2 GB, the entire hard disk space can be used by partitioning the hard disk. (Note that the maximum number of partitions is five.)
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Once you change the address of the external SCSI device, execute an "Initialize SCSI" command in the MISC/SCSI ID directory to recognize and store the changed address.
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A directory of connected SCSI devices is displayed when peripherals are connected via SCSI (SC1~SCn). You can access files from both FD and external media without changing media. You can also select media from file list.
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A maximum of 8 MW (701420, with interleave turned on). However, in the interleave mode the number of channels that can be used is reduced to half (8 bits) according to the same concept as for analog channels.
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Computation
Use the left cursor to select the start point for the FFT. The FFT data length is User-selectable for 1K data or 10K data. The number of data points in the record, to the right of the start cursor must be equal to, or greater than, the FFT length selected.
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First set the start point and the end point by using the jog shuttle, and then set the Edge Count numbers for the reference waveform and the desired measurement waveform.
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It applies to the whole acquisition data.
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Parameter calculation is made in the first one cycle. Though voltage axis, such as Max and RMS, targets whole range, One cycle mode targets only the first one cycle just like frequency and rising time axis.
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Because the processing of almost all parts of basic pass is done via hardware. For calculations made by software, such as Integ, it takes more time depending on the record length.
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YES. As PHASE is independent, not in Menu of Math, It is available for all calculations.
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The Phase Shift Function is independent of the Math function. Therefore, calculations using the Math function can be performed on waveforms with the phase shifted in advance.
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Acqusition
It is 400 MS/s when interleave mode is OFF, and 1 GS/s when the mode is ON.
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YES.
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N1 is for 701410 (2 MW/ch) and N2 for 701420 (8 MW/ch).
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Display
You can display one or two X-Y waveforms, XY1 and XY2.
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Colors of waveforms, the grid, and the background are changeable in MISC menu. You can change Intensity and RGB independently.
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It has an ON/OFF function for Back Light.
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When you push the CH key, the channel is brightened at the top.
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YES. Set Display-Accumulate-Color and execute all-display of History Memory.
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When you use only one POD from PODA and PODB, you can double the waveform by selecting "ALL OFF" for either display. Although, you cannot do this at analog waveform display range.
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A one-half to ten time zoom is available by selecting "Variable" in 2/2 of Channel Menu.
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Trigger
Press the "ENHANCED" key, then press the "Type" soft key, press the "Logic" soft key and then press the "Set Pattern" soft key. You can select any of the 16 bits to "H", "L", or "X".
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YES. Window Trigger can be used with the OR Trigger or WIDTH Trigger. You can set pattern at IN or OUT by selecting WINDOW-ON from the menu.
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Search
Any of the input signals can be used for Serial Pattern Search.
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Press the "SHIFT" key and then the "ZOOM" key. Select "Type" soft key and then "Serial Pattern".
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YES.
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You can only set the logic input signals to Source.
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Probe
NO. DO NOT connect the main unit and probes as both of them may get damaged.
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Four power output terminals are provided.
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YES.
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YES.
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Miscellaneous
At frequencies above 300 or 400 MHz, the capacitive loading of a passive probe can be a significant load on the circuit under test. For best results at the higher frequencies it is best to use a FET probe which will have a much smaller capacitive load.
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Look just to the right of the memory bar at the top of the display.
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YES.
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YES, if the printer accept PCL5 commands.
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NO. Simultaneous measurements on a total of 20 channels, 4 analog channels and 16 logic channels, are available.
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YES.
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·  DL7100 Signal Explorer
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