Products > Test Equipment
Siglent SDS1x04X-E BodePlot II (SFRA) features and testings
rf-loop:
--- Quote from: mrprecision on January 28, 2020, 07:20:50 am ---
--- Quote ---About new SDS2000X Plus Bode Plot.
SDS2kX+ have 50MHz internal signal generator. Of course with it can not do setups what use SDG with 2 output settings.
I have not SDS2000X Plus and here in China all who knows are now spring holidays.
Who can check if this model can use internal signal generatorfor BP use only without FG license installed. Even with scopes with external SAG USB generator do not need SAG license if use this only for BodePlot.
If use SDS2kX+ internal signal gen only for BP (BP controls it automatically) do it work without FG licence.
--- End quote ---
I use the Scope SDS1104X-E and the generator SDG2122X and I don't need any licence for the BodePlot and FunktionGenerator. I connect them over ethernet.
--- End quote ---
Answer is right if I ask this but not answer to my question at all.
Btw, I connect FG always via direct USB. Why... well... because no one is then never delaying communication between Scope and FG. (of course same if run bare point to point LAN)
Of course SDS1104X-E do not need. Have you ever read this thread from beginning, all what I have explained and tested... :) ;)
Also as we know SDS1kX-E do not have internal FG but SDS2kXPlus have and for this was my question. Is it possible to use its internal generator for Bode without activating this FG using Siglent licence for FG, what also activate manual control for internal FG but if user is not interested for use it other than Bodeplot).
This question is based to fact that SDS1kX-E have optional external FG (you know this SAG) and if buy this option he often byt this SAG hardware and then licence for use it as common FG. In SDS1kX-E case SAG (external box without controls) can use for Bode without purchasing its control license key. In this case it can still use for Bode but nothing else.
Now SDS2kXPlus have internal 50MHz FG what can use as common FG if purchase license key so user can run and control it using UI what is built in scope. And some people may like use it only for Bode and not want buy license key because overall this FG is not so advanced. So is it usable for Bode alone without license, this was and is question. ;)
torquil:
I have a Siglent SDS1104X-E that I use together with an SDG1062X, and the Bode Plot II function is very nice! But there seems to be a limit so that the y-axis cannot go beyond values in [-200,200], which is a bit troubling when using the BPII for impedance measurements with a linear y-scale.
I have made a small connection box for easily connecting everything required for an impedance measurement. One of the items I tested was a 3:1 transformer with a 100R load, so the input impedance will be beyond 200 Ohm. To get the impedance I provide voltage and current measurements to the Bode Plot II system, and use the Vout/Vin display (Vin represents current for this measurement) and a linear display on the y-axis.
These measurements work as expected, but since the input impedance is beyond 200 Ohm for the transformer, the graph disappears outside the plot area. I am forced to either manipulate the probe multiplication factor or use a logarithmic scale. I know I can get the CSV, but it would be nice to have an immediate and correct plot.
Anyone here know if this has been reported? I do use the newest firmware versions.
mrprecision:
how can you set the bodeplotII to linear yaxis?
rf-loop:
--- Quote from: mrprecision on November 15, 2020, 09:38:37 am ---how can you set the bodeplotII to linear yaxis?
--- End quote ---
You did not tell what axis, vertical (level) or horizontal (freq)
This image have been in this thread long long time and all other informations. Just read. ;)
Look top main menu and follow "Display"
There is Axis type (horizontal) select lin / log
For vertical select Scale V instead of dB and scale units Vpp/Vrms/dBV/dBu/dBm/Arbitrary dB
I am not absolutely sure in all is exactly as shown after some FW update but almost all like this.
mrprecision:
--- Quote from: torquil on May 04, 2020, 10:49:53 pm ---I have a Siglent SDS1104X-E that I use together with an SDG1062X, and the Bode Plot II function is very nice! But there seems to be a limit so that the y-axis cannot go beyond values in [-200,200], which is a bit troubling when using the BPII for impedance measurements with a linear y-scale.
I have made a small connection box for easily connecting everything required for an impedance measurement. One of the items I tested was a 3:1 transformer with a 100R load, so the input impedance will be beyond 200 Ohm. To get the impedance I provide voltage and current measurements to the Bode Plot II system, and use the Vout/Vin display (Vin represents current for this measurement) and a linear display on the y-axis.
These measurements work as expected, but since the input impedance is beyond 200 Ohm for the transformer, the graph disappears outside the plot area. I am forced to either manipulate the probe multiplication factor or use a logarithmic scale. I know I can get the CSV, but it would be nice to have an immediate and correct plot.
Anyone here know if this has been reported? I do use the newest firmware versions.
--- End quote ---
I have tried it with my connection box. I found the option to set the y-axis linear. You are right, there are limit of +/-200. That is not very nice. If you activate the table of the values, you can see the correct values. I will report this to Siglent.
How is your connection boy set up? Do you have a photo or a schematic? I have the Scope and an SDG2xxx frequency generator, all Scope probes and the generator is connected to earth. How did you solve this problem?
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