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New Tektronix 3 Series MDO
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Sighound36:

--- Quote from: snoopy on April 28, 2020, 01:54:27 am ---I believe Spectrum View is available at no additional cost on the Tek MSO 5 and 6 (optional for the MSO 4) ! This is like having a time correlated spectrum analyzer for each channel. Did you get to use it by any chance in your evaluations ?

--- End quote ---

Hello Snoopy

Yes I did use the spectrum view most days as this is an integral part of our design remit. I have attached some images below
Being frank its not that good, it can be helpful if you do not have access to a half reasonable SA, as a guide its fine and will give you a good indication of any possible FFT harmonic and spurious issues. The display isn't bad at all, the unit I was loaned came with every option and weighed in at well over £100K (as I suspect did the LeCroy in fairness).

Just to put this into perspective the 8Ghz upgrade to this scope is £62,500 alone on top of the £21,600 starting price extra memory to 250Mpts per channel is £8500 Apps range form £1100 to £7000 (over 40 to choose from lol) extended 2Ghz BW on spectrum view is included but £4130 is required for the frequency Vs time option. All plus 20% vat of coarse so I suspect over £130K fully optioned up without anything other than the stock probes!

For that outlay you could opt for a Rigol or Siglent (We love Tautech really  :-DD) RTA which offer a better solution for pretty much the cost of the Spectrum view upgrade on the 6 series Tek

They preform far better and you have a 40Mhz real time bandwidth as well (I have one of these units and did the comparison at the same time)

I have also included some images of the LeCroy Wavepro's spectrum view for you as well it to was a much better solution and I feel more accurate as well, I also pit the Wave pro against the Rigol RTA as well that was much closer indeed.

Now yesterday the Danny Bogoff show launched they new mini UXR for the pauper's brigade that was 6Ghz and had a built in RTA how we do not know yet (pretty sure TSP will be doing a review as we speak!) that was $106K (lol) but the point is what are you getting for your outlay???

I am not really bashing Tek, like I have said before we have three pieces of their equipment and its very good but their scopes and pricing are just (old English phrase here) "pissing in the wind" with the competition at the moment imho







snoopy:

--- Quote from: Wuerstchenhund on April 28, 2020, 09:30:10 am ---
--- Quote from: james_s on April 28, 2020, 05:24:53 am ---It's such a shame what has happened to Tek. I absolutely love the TDS3000 and TDS700 series scopes, but pretty much everything Tek has offered since then has missed the mark IMO.
--- End quote ---

Tek has missed the mark for a lot longer than that. It's demise started when analog scopes became a dead-end, and Tek has shown ever since that they never really 'got' digital scopes and would rather still make analog scopes.

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.

The really sad part is that they still don't seem to understand the DSO market, even after escaping the cust-cutting culture of Danaher, and I wonder how long they can afford to bleed market share while mostly relying on a brand name that was great some 30 years ago.

--- End quote ---

Surely you're exaggerating aren't you ?? 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 !

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.

cheers
snoopy:

--- Quote from: Sighound36 on April 28, 2020, 11:28:16 am ---
--- Quote from: snoopy on April 28, 2020, 01:54:27 am ---I believe Spectrum View is available at no additional cost on the Tek MSO 5 and 6 (optional for the MSO 4) ! This is like having a time correlated spectrum analyzer for each channel. Did you get to use it by any chance in your evaluations ?

--- End quote ---

Hello Snoopy

Yes I did use the spectrum view most days as this is an integral part of our design remit. I have attached some images below
Being frank its not that good, it can be helpful if you do not have access to a half reasonable SA, as a guide its fine and will give you a good indication of any possible FFT harmonic and spurious issues. The display isn't bad at all, the unit I was loaned came with every option and weighed in at well over £100K (as I suspect did the LeCroy in fairness).

Just to put this into perspective the 8Ghz upgrade to this scope is £62,500 alone on top of the £21,600 starting price extra memory to 250Mpts per channel is £8500 Apps range form £1100 to £7000 (over 40 to choose from lol) extended 2Ghz BW on spectrum view is included but £4130 is required for the frequency Vs time option. All plus 20% vat of coarse so I suspect over £130K fully optioned up without anything other than the stock probes!

For that outlay you could opt for a Rigol or Siglent (We love Tautech really  :-DD) RTA which offer a better solution for pretty much the cost of the Spectrum view upgrade on the 6 series Tek

They preform far better and you have a 40Mhz real time bandwidth as well (I have one of these units and did the comparison at the same time)

I have also included some images of the LeCroy Wavepro's spectrum view for you as well it to was a much better solution and I feel more accurate as well, I also pit the Wave pro against the Rigol RTA as well that was much closer indeed.

Now yesterday the Danny Bogoff show launched they new mini UXR for the pauper's brigade that was 6Ghz and had a built in RTA how we do not know yet (pretty sure TSP will be doing a review as we speak!) that was $106K (lol) but the point is what are you getting for your outlay???

I am not really bashing Tek, like I have said before we have three pieces of their equipment and its very good but their scopes and pricing are just (old English phrase here) "pissing in the wind" with the competition at the moment imho

--- End quote ---

Hi Sighound

But you are getting a spectrum analyzer on each channel and from what I have been told it's not chewing up anymore resources to have it since it has been incorporated into the hardware. You can also time correlate the spectrum with the time series which you can't do on an independent SA. Not only that you are not losing ADC bits by having multiple SA's switched on at the one time ;) BTW how much did you end up paying for the Lecroy with all options that you wanted ? Yes and I know all of this gear can be really expensive when you start adding it all up with all of the performance and options that you want :(

cheers
Sighound36:

--- Quote from: snoopy on April 28, 2020, 11:45:56 am ---
Hi Sighound

But you are getting a spectrum analyzer on each channel and from what I have been told it's not chewing up anymore resources to have it since it has been incorporated into the hardware. You can also time correlate the spectrum with the time series which you can't do on an independent SA. Not only that you are not losing ADC bits by having multiple SA's switched on at the one time ;) BTW how much did you end up paying for the Lecroy with all options that you wanted ? Yes and I know all of this gear can be really expensive when you start adding it all up with all of the performance and options that you want :(

cheers

--- End quote ---

Hi Snoopy

One plus with the Tek 6 series is the ability to 8 digital channels independently from each analogue channel with their lock and load probes. I can see this persuading a few people along with the stunning tru-view probes.

With regards to the LeCroy I had two independent spectral views running on two separate channels, also two spectral views on one channel no problem each looking at different aspects, no it didn't slow down either.

Depends on what you are using the scope for, we would never have any more than one spectral view in use at any one time, for pre compliance work we would use the SA tem cell/probes and LISN's etc.

Power supply work at a push.

The purchase cost was for 200Mpts / Audiobus / DFP2 Digital filter / Power analysis / Digital power management / JitKit / SDA III / Z1000 active probe / HVD3106A high voltage probe / CA10 current probe sensor £35K plus the vodka and tonic

snoopy:

--- Quote from: Sighound36 on April 28, 2020, 12:03:59 pm ---
--- Quote from: snoopy on April 28, 2020, 11:45:56 am ---
Hi Sighound

But you are getting a spectrum analyzer on each channel and from what I have been told it's not chewing up anymore resources to have it since it has been incorporated into the hardware. You can also time correlate the spectrum with the time series which you can't do on an independent SA. Not only that you are not losing ADC bits by having multiple SA's switched on at the one time ;) BTW how much did you end up paying for the Lecroy with all options that you wanted ? Yes and I know all of this gear can be really expensive when you start adding it all up with all of the performance and options that you want :(

cheers

--- End quote ---

Hi Snoopy

One plus with the Tek 6 series is the ability to 8 digital channels independently from each analogue channel with their lock and load probes. I can see this persuading a few people along with the stunning tru-view probes.

With regards to the LeCroy I had two independent spectral views running on two separate channels, also two spectral views on one channel no problem each looking at different aspects, no it didn't slow down either.

Depends on what you are using the scope for, we would never have any more than one spectral view in use at any one time, for pre compliance work we would use the SA tem cell/probes and LISN's etc.

Power supply work at a push.

The purchase cost was for 200Mpts / Audiobus / DFP2 Digital filter / Power analysis / Digital power management / JitKit / SDA III / Z1000 active probe / HVD3106A high voltage probe / CA10 current probe sensor £35K plus the vodka and tonic

--- End quote ---

Sounds like you got a good deal ;) Just curious what the equivalent R&S, Tek and Keysight offerings would have cost ?

cheers
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