ive been watching all your videos to figure out how to use my 3021x, I must say you a amazing teacher! just converted my mfj dummy load to have a -45db output so i can measure for the first time. My goal is to reapir amps and tune low pass filters. youve gotten me a huge step in that direction. My hat is off to you sir!
The energy in the modulation is spread among the two side bands. You must add the energy in both the upper and lower sidebands to compare it to the energy in the carrier.
Thanks for taking the time to do this series. Too often people think of a spectrum analyzer as a tool to check for spurious signals or, with a TG, a handy way to make a semi-Bode plot (no phase). You are showing that they are far more capable, especially the newer digital ones with calculation functions. Going to do occupied bandwidth next? :D
Hi, as I looked, we could deduce that, in linear mode, the sum of the side modulated signals is equal to the set ratio to the carrier. A set of 100 percent is equal to two sides of 50 and 50+50=100; set to 50 we get exactly 25+25 etc. Maybe one day I'll understand how to use "Spektrák" Nice day 🙂 Tom
Love your videos. I am new to using a spectrum analyzer and I am totally lost on how to use it. This video is very good and got me started on learning on how to use my Siglent SSA3021X. May I suggest that you create a series on how to use the SA for dummies, I mean very basic. Explain the buttons, modes, scales,... While watching this video I attempted to setup my SA to display the same signals as you had but always got different displays. I think it was because not all settings on your SA were shown. After watching this video I learned much but I'm still not confident that I can use my SA effectively.
Great video! I have an FFT fuction on my scope, but I rather exported to a file, clean it up using Excel if necessary, and use that file as a signal source in LTspice, and do the FFT in there, it works better for me.
In my work, I never needed to use a spectrum analyzer. Since I retired I bought the same unit you have. It is exciting to see different ways to use it. Could you show how to measure a crystal filter bandwidth and perhaps demonstrate how passband tuning works? Thank you.
Great video! I think I will have to save up for a siglent SA's. And I got an answer I have been looking for for about a year. But no one have been able to answer. What Video means in radio terminology. I've seen IF Video been mentioned several times and never understood the source of it. Thank you!
Siglent should be paying you. I have a Siglent scope which is ok not great, triggering not so top notch. So I covet your Rigol. But now seeing this SA, I may need to pony up $$$. thanks!
I'm going to have a hard time going back to Siglent, after all the hard work I had to do. I was a victim, along with thousands of other customers, of the "self-bricking firmware" defect on their last-gen AWGs, which was just out of warranty if you bought it too early. Say, if you were influenced a a particularly popular EE RUclipsr. And then they give a new firmware to said influential RUclipsr to apply via SD card when his blew up, which he did a show about, and left the people influenced in the cold. (Of course, I hacked it to fix it after going through legitimate channels with the absurd assumption that they would just give me a new firmware, as opposed to an update, which can't be applied because it's bricked.) But still, bad marketing on top of bad support on top of a probable GPL violation (I eventually discovered after dissecting the poor thing.) The hardware was actually pretty good, even compared to the Rigol which cost more. But still, hopefully understandably, a little shy about dropping a grand on Siglent gear atm. If I do, I'm at least going to be prepared to go outside of official procedures to repair it should something happen, which means it's going to have to be quite a discount compared to a Rigol.
@@mr1enrollment I probably didn't write my complaint clearly enough, my fault. They sent a firmware image to the RUclipsr, but refused to send it to anyone who had purchased it during that period. Those who encountered difficulty were those who bought it when said RUclipsr recommended it, when the time-bomb firmware was installed. They also misled end-users, and, charitably, the RUclipsr, by saying it was "pre-production", but all users who experienced bricked units and a 500 USD quote for out-of-warranty service bought it through retail channels. So not add on cost, but deception. Siglent should not have said it was "pre-production" firmware, and should have provided a free fix (and would have been required to do so in several jurisdictions.) You can imagine a bad taste left among people who bought it, again, via retail outlets and paid full price; and then to see the RUclipsr responsible for the explosive sales of said item receive a firmware image, while lying and saying that those of us that purchased it had pre-production units. This deceived future purchasers into thinking they would receive similar support. Btw, I'm completely confident of my narrative because said RUclipsr has a famously active forum, if it's not yet obvious who I'm talking about. And you can find many videos here on YT of people who felt slighted by not having enough viewers to get a fixed unit (it's just a firmware image to stick on a SD card!) As I said, the hardware was good. Their practices are bad. Only buy if you're comfortable with a hex editor, Busybox and a soldering iron. ;) Whether that balances out, ymmv... 🤷
Lol. I'm sitting in the car watching this on my phone, munching on a Popeyes chicken sandwich, waiting for my wife to finish shopping at Walmart. Cheers from Canada :-)
ive been watching all your videos to figure out how to use my 3021x, I must say you a amazing teacher! just converted my mfj dummy load to have a -45db output so i can measure for the first time. My goal is to reapir amps and tune low pass filters. youve gotten me a huge step in that direction. My hat is off to you sir!
The energy in the modulation is spread among the two side bands. You must add the energy in both the upper and lower sidebands to compare it to the energy in the carrier.
Yes, the energy is distributed equally on either side of the centre carrier in the form of the LSB and the USB 👍
De VU2RZA
This analyzer can also measure "channel power". And that's what we want here, total power inside a defined frequency range.
Very well presented, clear and concise. And I now understand the concept of zero span thanks to this video. Thanks!
Great to hear!
My Anritsu actually demodulates AM, FM Wide, FM Narrow, USB, and LSB. Thanks for showing universal ways to operate a spectrum analyzer.
Great Video. I like your style of Teaching. I always learn something from your Videos. You are truly an asset in my learning librarary
A great video, many thanks. This one's a keeper and I'll watch it again and again, getting more acquainted with all those lonely buttons!
Thanks for sharing this is very helpful
Thank you so much. Great explanation. Thank you for taking time and making videos.
Nice, I just use my Siglent to make squiggly lines. Now I know what it's really for, thanks.
Very good.
This is the style I would like to see.
Short, concise.
Thanks for taking the time to do this series.
Too often people think of a spectrum analyzer as a tool to check for spurious signals or, with a TG, a handy way to make a semi-Bode plot (no phase). You are showing that they are far more capable, especially the newer digital ones with calculation functions. Going to do occupied bandwidth next? :D
Helped me understand how these instruments measure signals. Thanks again Oh Great One! Lol. 73
Hi, as I looked, we could deduce that, in linear mode, the sum of the side modulated signals is equal to the set ratio to the carrier. A set of 100 percent is equal to two sides of 50 and 50+50=100; set to 50 we get exactly 25+25 etc.
Maybe one day I'll understand how to use "Spektrák"
Nice day 🙂 Tom
I think the Siglent has log frequency which is useful for looking at decoupling circuits. Normally used in EMC testing
Love your videos. I am new to using a spectrum analyzer and I am totally lost on how to use it. This video is very good and got me started on learning on how to use my Siglent SSA3021X. May I suggest that you create a series on how to use the SA for dummies, I mean very basic. Explain the buttons, modes, scales,... While watching this video I attempted to setup my SA to display the same signals as you had but always got different displays. I think it was because not all settings on your SA were shown. After watching this video I learned much but I'm still not confident that I can use my SA effectively.
watch this: ruclips.net/video/Ze4V6Qp1mK8/видео.html
Good information.
Great video!
I have an FFT fuction on my scope, but I rather exported to a file, clean it up using Excel if necessary, and use that file as a signal source in LTspice, and do the FFT in there, it works better for me.
I have the hp esa-1500A and my new one just came in today.The rigol dsa815
and I still use the tinysa
In my work, I never needed to use a spectrum analyzer. Since I retired I bought the same unit you have. It is exciting to see different ways to use it. Could you show how to measure a crystal filter bandwidth and perhaps demonstrate how passband tuning works? Thank you.
Apparently the HP Application Note 150-1 was originally published in 1971 :)
I'm surprised it is not older
There are many updated versions all called ap note 150. The latest version is available directly from keysight.
Great video! I think I will have to save up for a siglent SA's.
And I got an answer I have been looking for for about a year. But no one have been able to answer.
What Video means in radio terminology. I've seen IF Video been mentioned several times and never understood the source of it. Thank you!
What did you use as your signal generator please ?
HP 33120A
So zero span is a confusing name for demodulate.
Siglent should be paying you. I have a Siglent scope which is ok not great, triggering not so top notch. So I covet your Rigol. But now seeing this SA, I may need to pony up $$$. thanks!
I'm going to have a hard time going back to Siglent, after all the hard work I had to do. I was a victim, along with thousands of other customers, of the "self-bricking firmware" defect on their last-gen AWGs, which was just out of warranty if you bought it too early. Say, if you were influenced a a particularly popular EE RUclipsr. And then they give a new firmware to said influential RUclipsr to apply via SD card when his blew up, which he did a show about, and left the people influenced in the cold.
(Of course, I hacked it to fix it after going through legitimate channels with the absurd assumption that they would just give me a new firmware, as opposed to an update, which can't be applied because it's bricked.) But still, bad marketing on top of bad support on top of a probable GPL violation (I eventually discovered after dissecting the poor thing.) The hardware was actually pretty good, even compared to the Rigol which cost more.
But still, hopefully understandably, a little shy about dropping a grand on Siglent gear atm. If I do, I'm at least going to be prepared to go outside of official procedures to repair it should something happen, which means it's going to have to be quite a discount compared to a Rigol.
@@scottdrake5159 I can't condone the practice of add on $$$ but i have not encountered any difficulty either.
@@mr1enrollment I probably didn't write my complaint clearly enough, my fault. They sent a firmware image to the RUclipsr, but refused to send it to anyone who had purchased it during that period. Those who encountered difficulty were those who bought it when said RUclipsr recommended it, when the time-bomb firmware was installed. They also misled end-users, and, charitably, the RUclipsr, by saying it was "pre-production", but all users who experienced bricked units and a 500 USD quote for out-of-warranty service bought it through retail channels.
So not add on cost, but deception. Siglent should not have said it was "pre-production" firmware, and should have provided a free fix (and would have been required to do so in several jurisdictions.) You can imagine a bad taste left among people who bought it, again, via retail outlets and paid full price; and then to see the RUclipsr responsible for the explosive sales of said item receive a firmware image, while lying and saying that those of us that purchased it had pre-production units. This deceived future purchasers into thinking they would receive similar support.
Btw, I'm completely confident of my narrative because said RUclipsr has a famously active forum, if it's not yet obvious who I'm talking about. And you can find many videos here on YT of people who felt slighted by not having enough viewers to get a fixed unit (it's just a firmware image to stick on a SD card!)
As I said, the hardware was good. Their practices are bad. Only buy if you're comfortable with a hex editor, Busybox and a soldering iron. ;) Whether that balances out, ymmv... 🤷
Lol. I'm sitting in the car watching this on my phone, munching on a Popeyes chicken sandwich, waiting for my wife to finish shopping at Walmart.
Cheers from Canada :-)
awesome. I hate all those viewers that watch me on the toilet 😎
@@IMSAIGuy Lol :-)
@@IMSAIGuy Do you have a camera in my house?
@@tfrerich It's easy to hack into your mobile phone camera 😎
Thanks 👍
De VU2RZA