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| New Tektronix 3 Series MDO |
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| Sighound36:
Hi Snoopy The Tek equivalent with a £3K current probe to the list, but minus the digital filter was a fair bit less on scope price but the cost of the software and probes put the the cost to £46K +vat The Keysight S series, (though if the cost of the MXR is to be believed a 2.5Ghz unit will be around that £30K mark I feel) again the scope was less and the cost of the software was better very close between the LeCroy and Keysight but I found the LeCroy better, but the Keysight is still decent. The R&S had a few options and they offered the most discount on the scopes themselves 35% New RTO2024 Four channel oscilloscope, 2GHz bandwidth, this includes Windows 10 operating system, SDD drive, Jitter and Eye Analysis Options (K12 and K13), and Advanced Spectrum Analysis (K18, which may not be required as FFT Spectrum Analysis is included as standard, however K18 does however extend the capabilities by adding Waterfall displays, and advanced detection modes such as Max Hold etc..) RT-ZD30 3GHz Differential Probe. Total cost was £29,127 +vat Ex-Demo RTO2044 Four channel oscilloscope, 4GHz bandwidth, however as this an ex-demo instrument it also comes with: 16 digital channel logic analysis and probesArbitrary Waveform Generator OCXO time base Trigger and decode bundle, which includes I2C, SPI, UART, RS232 plus may more… Ex-Demo RT-ZD40 4GHz Differential Probe Remaining options as above (item 1) 1 year warranty. Total cost £38K +vat In fairness Snoopy I would suggest R&S offered the best pricing of the big four |
| Wuerstchenhund:
--- Quote from: snoopy on April 28, 2020, 11:35:43 am ---Surely you're exaggerating aren't you ?? --- End quote --- No, I'm dead serious. --- Quote ---TDS700 brought out InstaVu with up to 400,000 waveform updates a second which could spot most glitches that other scopes were blind too. It was the forerunner to DPO which also was an industry first. You are right Tek built analog functionality into their digital scopes and now everyone is copying it ! --- End quote --- Looks like someone drank the kool-aid ;) InstaVu was a crutch where high update rates were achieved in a special mode using data reduction, and which made it impossible to run measurements or any other analysis on the waveform. It was only an "industry first" in a sense that no-one else implemented such a mode, very likely because of it's limitations. At around the same time, HP came out with its first MegaZoom equipped scope (HP 54645A/D, the 'D' also being the "industry first" MSO), which achieved excessive update rates in normal operation, with no limitations on measurements. And when it comes to emulating analog functionality, there simply is nothing which better resembles an analog scope than MegaZoom (if that's what you want). It's as simple as that. Oh, and as far as finding rare glitches is concerned, you don't need high update rates for that if your scope has a decent trigger suite and the user knows how to operate it. The high waveform modes only existed because of analog scope users (Tek didn't understand the potential that was in DSOs; HP did very well, but designed the 54600 Series particularly for analog scope users wanting to migrate to a DSO). Other scopes were equally capable to find even the rarest glitch without high update rates, simply through extensive trigger and analysis suites. --- Quote ---For the new Tek MSO's I can see one advantage of that architecture that other people are not talking about in that you don't lose ADC resolution when you have more than one channel displayed on the screen at the one time. --- End quote --- Which scope loses ADC resolution when more than one channel is active? |
| Eric_S:
I still don't understand why they didn't just give the 4000C a smaller screen, and a new case and call it a day. Much snappier user experience than the 3000 / 3, and you would still not cannibalize the 4 series ... that much. The BOM would be higher, I guess, but on the other hand more people might actually want to buy one. |
| Sighound36:
--- Quote from: Eric_S on April 28, 2020, 03:55:09 pm --- The BOM would be higher, I guess, but on the other hand more people might actually want to buy one. --- End quote --- A very astute observation Eric 8) |
| james_s:
--- Quote from: Wuerstchenhund on April 28, 2020, 09:30:10 am ---Most of Tek's DSOs have been pretty lackluster, often hampered by weird design decisions and a slow architecture, and that includes the TDS700 Series. There were some bright spots, though, such as the TDS200 (which introduced the lunchbox format, allthough they weren't the only ones, Iwatsu had a similar scope back then which was rebaded by LeCroy), or the TDS3000 which could be battery operated. Still, both scopes were painfully slow, and aside from the form factor or battery didn't offer much over scopes from other brands. And the fact that Tek carried both well into the 2000's is testament to the general lack of innovation when it comes to scopes. --- End quote --- I don't really grasp what you mean by it being slow. I have a TDS3054 and a TDS784C and the only time I've ever noticed any kind of slowness in either one is using deep memory on the TDS784. The TDS3000 feels very snappy to me, what do I need to do to see this "painfully slow" lag you refer to? I'm genuinely curious and don't know what you're talking about. While I do like the TekProbe interface I'm not opposed to other scope brands, but aside from the very shallow memory depth by modern standards and the exorbitant pricing on the still-available C version I really haven't found any other complaints about the TDS3000 series. It's the perfect form factor and the controls are laid out very logically, I can set it up with my eyes closed. |
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