Hi All
I'm wondering if and in case how is possible to use the SED 8 Port to support a multi-user interaction.
To explain better my situation, I have a Low-Code app where is possible to see all the demodulators that are used, would to set a relation to know which Spectrum analyzer to find based on the chosen demodulator.
When I retrieve the right Spectrum analyzer, I will pass the demodulator information to it, and configure it.
Now my problem is, how I can set up the Spectrum analyzer without changing it for other operators? With a script, I can set the information on a Preset file, and then use it to configure the Spectrum analyzer, but if someone else is connected to it, he will see the trace change.
The device I'm using, the Calian Decimator, supports without problem the concurrency of multi-user, there is a way to replicate this on Dataminer?
Hi Marco, I had a similar situation, where we needed to get around different settings between C/L Band readings using the same physical Decimator. To get around the setting differences, we created a second DataMiner element of the same physical SED Decimator, different element name pointing to the same Decimator IP. This should act as a second user instance to the Decimator and allow different settings for the session. The downside, if viewing the Spectrum Monitors live, you will see the trace cycle through the Decimator 8 inputs during the data collection period of the monitors. However, once the monitor cycle is complete, the current user settings should be present again. Give this a try and let us know if it solves your issue.
Additional Information - The image below shows the single Decimator updating two different Measurement Point traces. The system time cycles between the two users displays. On the trace screen the users are able to see the there are multiple clients active. As you can see, these were done from the same physical Decimator element. One caveat I noticed, was that if there are monitor scripts running, sometimes, the trace display will switch to the other input reading, but then comes back to the selected one when the monitor scripts are finished.
![](https://community.dataminer.services/wp-content/uploads/wp-user-manager-uploads/2021/02/1516313790221.jpeg)
Hi Marco, I just re-tested and you are correct, the second instance of the Decimator allowed me to get around the different presets needed between L/C Band but does not act as a different user attached. I did some more testing on the system I have access to and found that using different Measurement Points might be the better solution. I updated the original answer to show how this works. You can also reference https://community.dataminer.services/video/spectrum-analyzer-setting-up-continuous-background-rf-measurements/
Hi Steve
Yes, you are correct, with the MP there is the possibility to use different input port without impact other users
Hi Steve, I tried to create a few other elements with the same IP, and it seems a little improvement, to set the right Active Switch for each element I need to pause other elements, and then everything seems to work, I’ll need to work a little bit more on the traces