This TinySA Ultra Plus Spectrum Analyzer Supports Upto 7.3GHz CALIBRATED! - ZS407
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- Опубліковано 8 лют 2025
- Here we take a look at the new TinySA Ultra Plus. Level Calibrated upto 7.3GHz in Ultra Mode.
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Very timely, Matt!
Was considering just yesterday upgrading from my basic TinySA as there's been a few times I wanted to scan higher then ~1 GHz.
The best way to look at the output of a transmitter is to use a coupler. The transmitter then looks into a 50 Ohm load and the coupled branch feeds the analyser with further attenuation as needed.
I order one of these(407) over the weekend. I plan to fix my Marconi 2955 with it. might do a vid.
It’s a great piece of kit!
Great product, good review, thanks.
Well, I think it is time for the bin for all the old boat anchor from R&S and HP in the ham shacks. Thanks to Eric for his great work.
Those are real lab instruments, this is more a hobbyist unit.
Remarkable how much technology they can put in such a small (tiny?) package these days.
I've used "real" spectrum analyzers. Indeed, I own a Tektronix 2712 1.8 GHz unit that I bought surplus from my employers. The TinySA weighs about as much as the Tektronix unit's power cord...
Probably don't like small cars either 😂🇨🇦
@@stevecarlisle3323 I drive a VW Golf.
@@marsgal42 Now I understand 😉
I wonder how much it would cost to add a capacitive touch screen. I have the nanovna and it's very frustrating to use because of the crappy resistive screen.
I'm stumped as to why an activation code is needed when measuring a high frequency.
I believe it is there to make you read the manual
@gfdemt917 I never Read the Manual 😁 .. But I snooped on line to discover it's a simple 4 digit code (so simple you could guess what it is).. Hint : The first digit is a "4" .. You only need to enter the number once (To activate) I assume to get away with some silly Legal Loop Hole.. The only time you may need to enter the number again is after a Firmware Update.
why is there a whole secret code system?
You can lock this device, so if yours get stolen, it will be useless for the thief...
@@fretlessfender what? It's a spectrum analyzer, I'm talking about the code for "ultra mode"
It's basic lab equipment running what I assume to be open source code. Usually that means there's a chance of hardware failure or something if it requires a password.
Ask at the local Masons' Lodge.
From the website:
"Ultra mode is disabled by default but can be enabled using the command CONFIG/MORE/ENABLE ULTRA using [REDACTED] as the unlock code. Once enabled the ultra mode stay's enabled. Sometimes a FW update may require re-enabling. By enabling the ultra mode you acknowledge that you understand and agree with the limitations of the ultra mode."
But like you, I've know idea why a _fixed_ code is required? (I've not quoted the code if there is an unknown reason)
You perhaps need to understand how this works, that would then make it clear. This is not a straight 7 GHz fundamental mode spectrum analyser, it uses mixing and signal processing to extend the range beyond its fundamental range. Many higher frequency analysers have used this technique. That is the Ultra part, but you need to understand the limitations of harmonic mixing and signal processing. So, to avoid complaints and make it clear what is really happening, that extended mode is only available with an unlock code. At least that's how I see the thinking. Below is a simplification of what is happening...
In normal mode, there is a low pass filter that prevents signals above about 900MHz being detected. That is to prevent higher order mixing products of frequencies above 900MHz causing "aliasing". For example, if the local oscillator in the SSA is set to 800MHz and mixed with an 800MHz signal at the input, the SSA will detect a signal at baseband (i.e. at low frequency where the detecting ADC operates). However if you were to put in a frequency at a multiple of 800MHz to the mixer you would also get a baseband output, so 1.6 GHz, 2.4GHz etc. The low pass filter prevents this by blocking those higher frequencies, that's normal mode. In ultra mode, that filter is bypassed, so it can detect signals at multiples of the local oscillator. That's when you want to see them. The magic is how to tell these alias signals apart. One way that can be done by noting how they change in frequency at baseband with the local oscillator, if the oscillator moves 1 Hz, then an 800 MHz signal down converted to baseband would move 1Hz, a 1600MHz signal would move 2 Hz and so on. So with processing, they can be separated. There is more to this, and that process isn't perfect for real signals. Hence the Ultra mode requiring informed selection.
Good for hams who don't have TinySA Ultra, not so good for those who have older Ultra versions (as this newer version doesn't bring any useful features). Is it just a very, very small upgrade.
So I got the previous version and…… jk . I think I’d spend the $ on attenuators before I’d upgrade to newer one.
I haven't a clue what's up in the Gigglehurts spectrum aside my modem and microwave.
God knows what the chineese will come up with next!!
Copied by the Chinese, NOT designed by them 😉🇨🇦
@@stevecarlisle3323true but full of chips made there I suspect…..
An invasion.
Designed by a Dutch guy, built in China.
At 180 bucks, kinda friggin expensive for something that should be more around 35
This is still cheap when compared to the offerings from the likes of Keysight or R&S where the cost can exceed 100,000 easily
I have a Tektronix and it's out of calibration... again.
Very slow Spectrumanalyser
Very reasonable price for home use. Most people can't afford a $40,000 instrument. What's your point 🤔🤔🤔🇨🇦
@stevecarlisle3323 Owon XSA 815 = 800 Dollar
@Elektronik.Tests-Reparaturen You got a buy, those show up at $1800 in the US
@@spectrumanalyser Yeah but it only goes to 1.5G
@@spectrumanalyser Owon 800 series is not fast either. I am waiting for a good deal on 1000 series. Those are much much faster then 800!