Rigol DS1074Z Oscillosope

[Fungus]

........a photo with model up left and the model on the screen will convince us......

Riiiight, because photoshop doesn't exist.

PS: Why on Earth would he lie...?

[Mark_O]

I unfortunately don't have the right equipment to measure that at home, but the scope thinks its an DS1104Z in the system info.

I'd like to see the Info screens, just to note stuff like versions, etc.

[andse]

I unfortunately don't have the right equipment to measure that at home, but the scope thinks its an DS1104Z in the system info.

I'd like to see the Info screens, just to note stuff like versions, etc.

[toni31]

i see same fw with 1074
thanks for the photo andse

[kripton2035]

are the codes working to unlock the MSO1074 also there should be a mso1054 to replace the DS1052 ?

[Mark_O]

I'd like to see the Info screens, just to note stuff like versions, etc.

<screens provided>

Thanks very much.

[marshallh]

DS1052E and other comparable scopes use 10 interleaved 60msps ADCs overclocked to 100mhz. ETS is accomplished by using a CPLD to generate phase offset clocks in a deterministic way. This is possible since the sampling clocks are a low 100mhz.
DS2k and DS1074 series use higher integrated ADCs.

DS2k uses a National dual channel ADC with internal sample bridging. DS1074Z uses a Hittite quad ADC overclocked that internally bridges for higher rate. Sampling clocks are much faster.
To support ETS with these designs you will need a method of adjusting sampling phase with low jitter (you can't use an FPGA PLL for this).
Instead you need a more specialized RF synthesizer chip, or clock jitter cleaner, each which adds another $15 to the BOM. So there you go. You can't apply the CPLD method since you'd have to drop the sample clock way down, and yoru ETS would drop by a factor of 10, which makes it just the same as your 1gsps real time.

[David Hess]

DS1052E and other comparable scopes use 10 interleaved 60msps ADCs overclocked to 100mhz. ETS is accomplished by using a CPLD to generate phase offset clocks in a deterministic way. This is possible since the sampling clocks are a low 100mhz.
DS2k and DS1074 series use higher integrated ADCs.

DS2k uses a National dual channel ADC with internal sample bridging. DS1074Z uses a Hittite quad ADC overclocked that internally bridges for higher rate. Sampling clocks are much faster.
To support ETS with these designs you will need a method of adjusting sampling phase with low jitter (you can't use an FPGA PLL for this).
Instead you need a more specialized RF synthesizer chip, or clock jitter cleaner, each which adds another $15 to the BOM. So there you go. You can't apply the CPLD method since you'd have to drop the sample clock way down, and yoru ETS would drop by a factor of 10, which makes it just the same as your 1gsps real time.

I think you are confusing equivalent time sampling with interleaving.

Interleaving requires phase aligned sampling clocks and as you point out, it an integrated function of many ADCs now.

Equivalent time sampling requires a measurement of the time between the trigger and sample clock so that once the waveform record has been acquired, it may be aligned with the display record.  This can be done either in the analog domain at the time of the trigger or in the digital domain after the triggering occurs and the waveform is stored in the acquisition memory.

Both interleaving and equivalent time sampling require low jitter in the sample clock.

[alank2]

Insane price. I paid $700 for my 1052E!

One has to wonder if they are positioning to sell a zillion of these like they did with the 1052E.  The conditions are similar in terms of price and the "capability" to user improve them.

I ordered one last night.  $375.06 out the door with the eev blog discount and free shipping.

[iRad]

I ordered one last night.  $375.06 out the door with the eev blog discount and free shipping.

Ditto here (today)...

BTW: For those choosing to pay TEquipment by PayPal for their purchase, you can still enter the discount code after you log into PayPal. Before your final "Agree to Terms" and "Submit Order", on that page you will also see a place to enter the discount code. Once the code is entered, you will immediately see the adjustment to your final price before submitting your order. Could be a little bit confusing, but it works fine... 

  Thank you TEquipment for your support of forum members!!! 

[marshallh]

I think you are confusing equivalent time sampling with interleaving.

Interleaving requires phase aligned sampling clocks and as you point out, it an integrated function of many ADCs now.

Equivalent time sampling requires a measurement of the time between the trigger and sample clock so that once the waveform record has been acquired, it may be aligned with the display record.  This can be done either in the analog domain at the time of the trigger or in the digital domain after the triggering occurs and the waveform is stored in the acquisition memory.

Both interleaving and equivalent time sampling require low jitter in the sample clock.

Right, but as you described, ETS can be accomplished by precisely measuring the jitter at the trigger, or by precisely controlling said jitter by a known amount. If you have any more info on how its accomplished in the former manner, I'd be interested. I'm only familiar with the latter method.

[miguelvp]

You shouldn't post the code in the forum, tequipment asked not to do so.
It's fine to let people know to PM tequipment to get the code.

The reason I know is because I did the same mistake a while back but deleted it from my post after being told about the policy.

[David Hess]

Right, but as you described, ETS can be accomplished by precisely measuring the jitter at the trigger, or by precisely controlling said jitter by a known amount. If you have any more info on how its accomplished in the former manner, I'd be interested. I'm only familiar with the latter method.

If the sample clock is delayed from the trigger by a specific amount, then normally that is considered to be sequential equivalent time sampling versus random equivalent time sampling.  Precision implementations of sequential equivalent time sampling often both control the sampling time with respect to the trigger *and* measure the resulting time difference.

As far as practical time to digital converters, this is a good place to start:

http://www.ko4bb.com/~bruce/TDC.html

Digital storage oscilloscopes which implement digital triggering may also implement equivalent time sampling by using something similar to the transition midpoint timing TDC discussed at the above link.  Older digital storage oscilloscopes typically use a dual slope/ramp TDC.  Analog sampling oscilloscopes use time to amplitude conversion.

There are several old Tektronix DSOs which support equivalent time sampling and have complete service documentation including schematics and circuit descriptions.  The Tektronix 2432 and 2440 for example measure the trigger to sample clock delay with a resolution of better than 40 picoseconds using a relatively simple dual slope/ramp TDC design.

[hans]

Neither does the 1074Z.
Maybe you're thinking of the 1074Z-S (which costs a lot more than the 1074Z).

Yes, I meant there is no 1054Z-S model.
So that could indicate different internals. But most likely just a marketing position thing.

The -S models have a dedicated AWG board:
https://www.flickr.com/photos/jameslothian/sets/72157645222357567/

That puts it as an artificial limitation, like "you want that extra option? You have to buy stuff you may not need" - similar to Apple Macbooks where you can't upgrade storage on the i5 laptops compared to i7 models.
 

Nevertheless, I paid 700 euro's for my DS1074Z-S and I'm very happy with the bang per buck. I still use a 4yr old TDS1001B at work, which is really rather depressing if you compare the price difference and what you get (although we all know by know how Tek is on their low-end range scopes).

[alank2]

Hi Everyone,

So I'm spoiled by the DS2000 thread that Marmad has with all the great information, what firmware versions there are, etc.  Is there any equivalent for the DS1000Z?  What versions of firmware are known?  Are they hosted anywhere?

Thanks,

Alan

[godFather89]

I just ordered myself a DS1074Z. Still thinking if I should cancel the order (while I can) and get the DS1054Z. Any news on the DS1054Z hack, does it really work with 100 MHz signal? 

[Mandragora]

It looks like everyone who hacked ds1054z to "ds1104z" don't have a 100MHz+ generator to test it untortunetly.

Dave please do it for us

I just ordered myself a DS1074Z. Still thinking if I should cancel the order (while I can) and get the DS1054Z. Any news on the DS1054Z hack, does it really work with 100 MHz signal? 

If I were You I would cancel it and wait a few days to be sure, You can save a lot of money.

[leppie]

It looks like everyone who hacked ds1054z to "ds1104z" don't have a 100MHz+ generator to test it untortunetly.

So why even need that?

Actually it would be easier to measure rise time. Creating a 2ns edge is super easy and cheap. 1054Z is claimed 7ns, while 1014Z is 3.5ns.

[EEVblog]

It looks like everyone who hacked ds1054z to "ds1104z" don't have a 100MHz+ generator to test it untortunetly.
Dave please do it for us

I haven't heard about my unit yet, and I don't know what the hack is?

If I were You I would cancel it and wait a few days to be sure, You can save a lot of money.

Yeah, you can save some serious money here, enough to buy a good multimeter or a low end signal gen.

[frenky]

It looks like everyone who hacked ds1054z to "ds1104z" don't have a 100MHz+ generator to test it untortunetly.

I will get mine probably tomorrow.
Since I don't have high speed signal generator I will try to measure rising edge on Arduino Due (84Mhz) and Rasspberry Pi: http://goo.gl/YF9MdW

But I don't have 50 Ohm feed through terminator so I'm not sure if my measurements will be valid.

[Fungus]

Look what just came through the door...

[Fungus]

...and guess what was inside!

[riccardo.pittini]

I never got this thing of double packing...
once in the department we bought 10 DS4024... we unpacked them... and unpacked them again due to the double box... -_-

it seems they make a matrioska game

[godFather89]

Yeah, thanks for the advice. The order has cancelled by itself. It seems the local dealer didn't have DS1074Z in stock. I guess I'll order a 1054Z from batronix.

[Fungus]

I never got this thing of double packing...

Maybe somebody at Rigol is an ex-postman.

If you look at the first pic there's a wrinkle in the cardboard at top-right. Looks like it was dropped on that corner.


PS: I just powered it on. So far, so good...