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Kinnar
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LTSpice is not portable software. Article with good collection of tools
Kinnar   12/25/2013 2:07:50 PM
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LTSpice is not portable software, as it requires an install on a PC or Mac. But yes it is a very good test tool from LT. 

But by the way the tools listed here are very nice collection at a stretch, among them Red Pitaya seems to be of trande setter potential being a open source. Also it is nice of Gabotronics that they have revealed the schematic diagram of the product they are yet to commercially available.

Kinnar
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Re: Inexpensive test gear
Kinnar   12/25/2013 1:57:06 PM
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You are right but I think NI, MyRio also finds a better place as compared to all others listed out there. Here is the link to it.

NI myRIO is an embedded hardware device designed to design real, complex engineering systems it simultaneously allows to test and measure many protocols as well on an FPGA.

 

Sanjib.A
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Re: Inexpensive test gear
Sanjib.A   12/25/2013 10:43:17 AM
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Thank you! :)

David Ashton
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Re: Inexpensive test gear
David Ashton   12/25/2013 5:18:23 AM
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@Sanjib - I am hoping to get an Analog Discovery next year and if I do I will try and let you know how it goes.  Everything I have heard about them has been good.  Anyone else have hands-on experience with them?

Sanjib.A
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Re: Inexpensive test gear
Sanjib.A   12/25/2013 3:26:37 AM
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@David Ashton:

Great to learn about "Analog Discovery" from Digilent. Thanks!! Looks to be a professional product for low speed lab work and handy for debugging as it is multipurpose: oscilloscope cum logic analyzer cum multimeter. Ease of portability makes it good to place the tool on the desk instead the requirement for a lab space. Requesting your comments after you get a chance to try that.

David Ashton
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Inexpensive test gear
David Ashton   12/24/2013 7:29:28 PM
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Hi Susan, and Happy Christmas.

I think any list like this ought to mention two more items:

1. The National Instruments MyDAQ

NI gear is usually pretty expensive (as is the LabView software needed to drive it) but if you are a student you can get their MyDAQ, which is intended for student use and is cheap ($99 for students with a copy of LabView), but it is only 200 KSPS  / 20KHz bandwidth which I find woefully inadequate - even the low range items above do 2 MSPS and 200 KHz Bandwidth.  Nevertheless it is a versatile goodie - has digital I/O and a DMM built in - and quite good value if you're a student.

2. Digilent Analog Discovery

Digilent make the Analog Discovery which is $99 if you can get the student price, a bit more otherwise.  100 MSPS 14-bit channels and they claim effective 5 MHz bandwidth - plus digital I/O.  I'd like to get one of these - streets ahead of the MyDaq.

Both of these are USB/PC based, so no good if you want something standalone.Both are intended for the educational area, but still useful for low speed lab work.

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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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