Check out the gold plated edges, surprised I don't see this more often. It should be capable in a normal PCB process (plated slot) with no added cost and superior to via stitching alone right?
I think the cost of board space being "free" is slightly exaggerated though. Not only do you have the controlled impedance board material (not as high end as SSA3021X material but still), you also have the cost of machined aluminum to contain it. On a low end product like this, adding $20-40 of cost would be significant.
But yes, it is too bad it can't reach beyond 2.5 GHz where all the modern communication standards sit. That makes the SVA1015 obsolete straight away.
Not obsolete, it just has a narrower target market. I can imagine plenty of uses for a 1.5GHz VNA.
But yes, it is too bad it can't reach beyond 2.5 GHz where all the modern communication standards sit. That makes the SVA1015 obsolete straight away.
Not obsolete, it just has a narrower target market. I can imagine plenty of uses for a 1.5GHz VNA.Like what? Because it is a 50 Ohm device you can't use it for systems with an impedance very different to 50 Ohm without losing accuracy. So this does limit it to 'radio stuff'.
When it comes to network analysers there are basically two types: the HF 50 Ohm types which are primarily useful for HF (radio) work and the LF types which also have 1M Ohm inputs and various methods to do the analysis to offer a wide range of useable impedances. The LF network analysers are much more useful as a general purpose tool. Siglent should make one of those (just like the Omicron 100 you reviewed recently).
Like what? Because it is a 50 Ohm device you can't use it for systems with an impedance very different to 50 Ohm without losing accuracy. So this does limit it to 'radio stuff'.
When it comes to network analysers there are basically two types: the HF 50 Ohm types which are primarily useful for HF (radio) work and the LF types which also have 1M Ohm inputs and various methods to do the analysis to offer a wide range of useable impedances. The LF network analysers are much more useful as a general purpose tool. Siglent should make one of those (just like the Omicron Bode 100 you reviewed recently).
Dave pointed out many times in the video, that the discrete element filters are bigger in the SVA1000, because the frequency is lower.
Dave pointed out many times in the video, that the discrete element filters are bigger in the SVA1000, because the frequency is lower.
I know he said that, but I am not sure I understand why it matters. Both instruments he compared operate down to 9 kHz. So it is the upper limit, not the lower limit that is different between the two. Unless the IF frequency range is really different, that I didn't hear mentioned, then the microstrip distributed element filter layout could have been about the same and cover 9 ... 1,500 kHz the same way it does in the SSA3032X
So, try as I may, I have searched online, read the user manual and looked for anything I can on google - I can't find exactly what the bloody AM/FM modulation analyzer feature will give me! Can it measure peak and average deviation etc for example?
How are we meant to know if the feature is worth shelling out $$$ for, if we can't even find basic information on what the thing does!?!!!!!!
Here is a pic of the demod in action:
FM radio station at about 100MHz - both SA view and FM demod view.
Here is a pic of the demod in action:
FM radio station at about 100MHz - both SA view and FM demod view.
So, deviation according to modulation analyzer max 25KHz?
SA screen shows what you expect from an FM broadcast station, 100-150Khz.
One of the first things that struck me was a button battery on the PCB - inside the sealed enclosure.
So its a return to replace a dead button cell???
I wonder how much that costs (ex. the shipping costs)?
Yep. That one.
Unless I missed an access panel on the cover it looks like you would need to break the seal to replace it?