Products > Test Equipment
Need suggestion to select an (1GHz) Oscilloscope (Tek 5 series Vs R&S RTO2000)
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udhay_cit:
Hi,
For my company I need to select an oscilloscope with 1GHz BW, 4Ch analog. We have received an excellent offer from both Tektronix and R&S. Both are good and both has its own advantages and disadvantage which leads me confusion. Please give us your valuable opinions to select any one from these two.

Tektronix MSO54 5-BW-1000

Advantages:
1. Biggest and full HD screen with easy to use UI (my opinion)
2. Real 12bit ADC and individual ADC per channel.
3. 4 Channel 1GHz passive probe with very low capacitive load.
4. Standard embedded OS and optional windows 10.
5. Flexible analog or digital channels (not interested in digital channels now, but just mentioning here)

Disadvantages:
1. 6.25 GS/s for each channel which is good, but lower compared to 10 Gs/s of RTO2000
2. Rise time is only 400pS for 1GHz scope. So the real BW=0.35/400pS = 875MHz
3. 500,000 wfm/s is low compared to 1M wfm/s of RTO
4. Price $15,300 compared to R&S $3,400 cost more

Rohde & Schwarz RTO-2000

Advantages:
1. 10 GS/s independent of number of channels.
2. Rise time 350pS which is the real bandwidth is 0.35/350pS=1Ghz
3. Can be upgraded upto 4GHz (not interested at least now)
4. Ultra fast update rate 1M wfm/s.
5. Windows 7 comes default (don't know advantage or disadvantage. is there any possibility of windows corrupt?)
6. Lower price EUR. 10,700 ($3,400 lesser compared to Tek)
7. Supplier offering two 8GHz passive probe RT-ZZ80 but the impedance of the probe is only 500Ω.

Disadvantages:
1. 12.1" 1280x800 display (compared to Tek its low)
2. Default 500MHz probe.
3. 8bit ADC (16bit at high resolution)


Each one has its own advantages and disadvantages. I don't consider the price as a point (because I'm not going to pay). Both are giving really good hardware and good support. I like both and I'm really in confusion. So please give me your feedback on these points.

Thanks in advance
Udhay
nctnico:
Don't get hung up on the risetime! The factor .35 is just a rule of thumb. By why aren't you considering the R&S RTM3004? That has 10bit ADCs and 1GHz bandwidth.

I also wouldn't put too much value in probes which come with an oscilloscope. If you have special requirements you'll probably have to buy probes seperately anywhere.
Sighound36:
Not sure about the 'real 12 bit' when we had the 6 series on test it readily displayed 8 bits when looking at low speed digital signals, not that nice to use either. Also consider a LeCroy HDO6000 (real 12 bit) and Keysight 4000X series.

R&S not a fan of the scopes but the RF stuff is just spot on
udhay_cit:
Hi nctnico,
I like the RTM-3000 also, but the update rate is too slow. Waveform update rate is not much important, I can able to detect the random signal with "runt trigger". But it is very low.
To be frank if I select an oscilloscope for my personal usage, I will happily get the RTM3004. It is 100% worth the money. But my organization willing to pay, so I'm looking for higher spec oscilloscope.

I hope the 0.35 is a 3db gain level. So do you have any suggestion for me between MSO54 & RTO2000
nctnico:
Unfortunately I have no experience with the scopes you selected. The best advice I can give is to get both on loan for 2 weeks or so and do some serious testing to see which one works best.
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