Author Topic: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes  (Read 229986 times)

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Offline rf-loop

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1600 on: February 02, 2020, 06:09:24 am »
Let’s assume a single channel active at a 1ms/div timebase. With 14Mpts of acquisition memory, we still
maintain a 1GSa/s sample rate and the record length is 14Mpts, so it fills the entire memory. Yet when we
look at the history, we will find 3 records stored there, so there is actually a total  42Mpts of memory
available. Since this is the same for both channel groups in an SDS1104X-E, we could even claim to have
a total of 84Mpts of memory, but Siglent thankfully does not take the numbers game that far.

1.00ms - 1.00GSa/s -14.0Mpts     - 3   screens on history     ( 14Mpts    x 3 =  42Mpts)    per ADC
500us   - 1.00GSa/s -7.00Mpts    -  7   screens on history    ( 7.00Mpts x 7 =   49Mpts)    per ADC
200us   - 1.00GSa/s -2.80Mpts    - 19  screens on history    ( 2.80Mpts x 19 = 53.2Mpts) per ADC
50us    -  1.00GSa/s -700Kpts     -  80 screens on history     ( 700Kpts x 80 =  56Mpts  )  per ADC   BINGOOOO 56Mpts per ADC 
Siglent SDS1104X-E have 2 ADC X 56Mpts = 112Mpts

Where is the truth. Why is Silent silent about this?
sds1104x-e is a 56M oscilloscope per ADC
           
Yes and no. ;)
Even when there is more memory for history buffer and fast segmented (sequence)
IMportant factor is one acquisition maximum memory length and it is 14M with one exception what is 17.5M and this number can not use for marketing. It can tell sequence and wfm history buffer is up to this and that but due to common peractice... max freq, max samplerate and max one acquisition memory length.
And truth is 100 and 200MHz BW depending model, 1GSa/s and 14Mpts in interleaved mode and 500MSa/s and 7M in non interleaved mode. (acquisition length is same in both cases if we thing time instead of count of samples. If think this, 14M with 1GSa/s equals to 140Mpts with 10GSa/s. This need also think and not look only Mpts without thinking further realities with time axis)

Here can find SDS1x04X-E old table about this. Note, not all combinations and also note older FW version and there perhaps is some minor marginal differences. Even when it is checked with older FW and it is bit obsolete (mainly in slow timebases) I do not yet set table status fully obsolete. Waiting some FW update more and after then correct whole table. Note that some numbers may be bit better in FW 6.1.33 where is also many major improvements.



Siglent do not "stretch all out" for marketing... given that place of honors to example Keysight et al.
« Last Edit: February 02, 2020, 07:03:25 am by rf-loop »
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Offline ArcticPhoenix0

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1601 on: February 06, 2020, 02:58:34 am »
Is there a way to save this image so that I can pull it up later on the screen without the signal going into it?
 

Online TK

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1602 on: February 06, 2020, 11:48:35 am »
You can save them as reference signals
 

Offline kvd

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1603 on: February 20, 2020, 01:38:58 pm »
Hi,

I found another bug in the SDS1202X-E oscilloscope. Firmware version is 1.3.26.

The attached screenshot shows the problem. It shows the trigger point has been moved to the left (delay = -5.06ns). Tracking cursors on channel 1 and 2. The ∆X is calculated correctly (count #divisions * 1ns/div). But the reference point to which X1 and X2 are calculated is 5ns to the left of X1. This does not make sense. It should be either at X1 (so X1 = 0), or at the origin of the screen (so X1 would be -5ns then). X2 should be shifted accordingly.

Koen

 

Online SHF

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1604 on: February 28, 2020, 08:10:03 am »
Hi,
Is it possible to calibrate the internal time base or frequency display? my SDS 1104X-E always shows only 9.99995 MHz at an exact frequency (10MHz GPSDO)!

regards
Dieter
 

Online SHF

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1605 on: March 07, 2020, 09:58:07 am »
 
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Offline diodak

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1606 on: March 07, 2020, 08:58:21 pm »
The new FW (6.1.35R2) has changed the way the screen is displayed via the website. It is now on the same page and you do not need to use the back button to e.g. issue the SCPI command. I didn't notice this in the list of changes ...
 
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Online Martin72

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1607 on: March 07, 2020, 09:05:36 pm »
Quote
Is it possible to calibrate the internal time base or frequency display? my SDS 1104X-E always shows only 9.99995 MHz at an exact frequency (10MHz GPSDO)!

Same here, on the sds2000x+.
I think it´s a "digit problem", which means it´s not a real problem but a "natural" matter of fact.

Online SHF

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1608 on: March 07, 2020, 09:32:22 pm »
Hi there
Can anyone explain the meaning of the beep when starting the SDS 1104X-E?
My device sometimes beeps twice at startup? (Firmware version: V6.1.35R2)
 

Online SHF

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1609 on: March 07, 2020, 09:38:37 pm »
Quote
Is it possible to calibrate the internal time base or frequency display? my SDS 1104X-E always shows only 9.99995 MHz at an exact frequency (10MHz GPSDO)!

Same here, on the sds2000x+.
I think it´s a "digit problem", which means it´s not a real problem but a "natural" matter of fact.

I think it's because of the inaccuracy of the internal TCXO
 

Online Martin72

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1610 on: March 07, 2020, 10:15:26 pm »
Timebase accuracy sds1000x-e 25ppm, siglent sds2000x+ 1ppm...

Offline ArcticPhoenix0

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1611 on: March 07, 2020, 11:00:06 pm »
Best guess: a test beep since it does have a speaker inside of it.
 

Offline tautech

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1612 on: March 07, 2020, 11:20:40 pm »
Hi there
Can anyone explain the meaning of the beep when starting the SDS 1104X-E?
My device sometimes beeps twice at startup? (Firmware version: V6.1.35R2)
It's like a POST test but if you don't like it in Utilities you can turn the sound OFF. Use Default and it will be back unless you make your personal Default settings and save then using the Set to Default feature in the Save/Recall menu.
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Online SHF

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1613 on: March 08, 2020, 12:53:40 pm »
Hi there
Can anyone explain the meaning of the beep when starting the SDS 1104X-E?
My device sometimes beeps twice at startup? (Firmware version: V6.1.35R2)
It's like a POST test but if you don't like it in Utilities you can turn the sound OFF. Use Default and it will be back unless you make your personal Default settings and save then using the Set to Default feature in the Save/Recall menu.

the 2x beep is due to the new firmware, V6.1.33 is not !
 

Offline rickwookie

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1614 on: March 09, 2020, 08:39:12 am »
New Firmware https://int.siglent.com/download/firmwares/?ProId=12
Version: V6.1.35R2

Since this is the first new firmware since I "upgraded" my 1104X-E to a 1204X-E, can anyone tell me if doing this firmware upgrade has any effect on that or any other unlocked features?
 

Offline modoran

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1615 on: March 09, 2020, 09:58:21 am »
My hacked 1104X-E still keep all options permanently enabled after firmware update ( not hacked to 1204X-E yet, only wifi, awg and mso )
 
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Offline ArcticPhoenix0

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1616 on: March 09, 2020, 10:00:16 am »
Hacked my BW and options. Still there after FW update.
 
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Offline rickwookie

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1617 on: March 09, 2020, 01:44:06 pm »
Ok I went for it and all “upgrades” remain. 👍
 

Offline ArcticPhoenix0

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1618 on: March 09, 2020, 10:55:03 pm »
I'm not sure if this is a bug or me not knowing how to use this scope but I'm trying to zoom in on a specific spot of the waveform that I have centered on the screen in the 1st attachment. That's 1V/div 500us/div on the test signal in front of the scope. .
I've got the reference POS in Fixed Offset-Vertical and Fixed Position-Horizontal
When I zoom in to 100mV I get the second attachment and now I'm looking at some middle bit of the wave. 500mV and 200mV worked fine and took me closer to the plateau of the wave. I've tried different combinations but still wind up in the middle. Am I doing something wrong here?
 

Offline ArcticPhoenix0

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1619 on: March 09, 2020, 10:56:08 pm »
Don't know why this didn't attach. This is the starting point.
 

Offline ArcticPhoenix0

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1620 on: March 10, 2020, 12:51:51 am »
Figured it out. Had my probe at 1x. :-DD
 

Offline 4x1md

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1621 on: March 11, 2020, 07:29:24 pm »
I'd like to understand how the internal frequency counter works. I measured an SPI clock of 10MHz. The measurements show a perfect frequency value but the frequency counter shows <10Hz. Why? What am I missing?

Offline tautech

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1622 on: March 11, 2020, 08:13:44 pm »
I'd like to understand how the internal frequency counter works. I measured an SPI clock of 10MHz. The measurements show a perfect frequency value but the frequency counter shows <10Hz. Why? What am I missing?
The inbuilt frequency counter is for continuous waveforms for the channel selected to provide the trigger.

How you are using the dedicated channel measurement is correct.  :-+
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Offline 4x1md

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1623 on: March 14, 2020, 11:59:21 am »
I found a mismatch between channels in my unit. On the attached screenshot is shown the same waveform sampled on two different channels. Both are sampled with the original Siglent 200MHz probes in 1X mode connected in parallel. On channel 4 the measured maximum is higher than on channel 2. The tested circuit is powered with Vcc=3.31V measured. The maximum value of 3.48V on channel 4 is 5.14% higher than the expected 3.31V which is much higher than the 3% stated in the datasheet. I tried to replace the probes with BNC-hook cables and got the same results. What can be the problem? What am I missing?

How are the versions of Siglent manuals numbered? For example, I have oscilloscope manuals versions UM0101X-E02A,  UM0201X-E01D and UM0101E-E03C. How can I know which one is the latest?

Online TK

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1624 on: March 14, 2020, 12:07:01 pm »
Have you run self calibration on your unit?
 


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