EEVblog #1101 - Siglent SVA1015X VNA Teardown

Teardown and look at the new $1395 Siglent SVA1015X 1.5GHz Spectrum and Vector Network Analyser
Well, $2000 when you include the actual VNA option :-/

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[EEVblog]

I'm not sure how you can release a VNA with that name on the sticker and make the VNA optional extra, marketing innovation?
It's like releasing a Digital Storage Oscilloscope and making the storage optional extra.

[ws_stelzi]

I think the sharp edges on the shieldings are a secondary "Waranty void if removed" device. If somebody cut themeself there would be blood on them and easy checkable if it's the blood of the owner.

[mourneris]

The VNA capability is wonderful for anyone doing filter design and impedance matching/feed networks. S11 and S21 is all you need.

[Spector_NS_RD]

Huh? i've never been so in over my head watching a video and trying to understand it. So much to learn. Thanks Dave!

[TheDefpom]

Pity about the de-modulation not being enabled at 53:00, I wanted to see how that worked!

[zacharytaylor]

I find it really odd that in a bit of $1k+ test gear there is corner cutting on the filter cap but yet on a $500 projector I took apart that failed every single cap on the PSU is Rubycon

[tomgeorge]

Hi Dave, the crappy Leylon 400V Cap only has to worry about 100Hz ripple
When refurbishing some repairable SMPS I have not found any failed DCBus 400V caps.
It is good to see better quality caps in the HF switchmode part of the supply were ESR can be problem particularly if they are high density value caps or low value/high voltage types.

[CarlThom]

Many "HMC" devices went obsolete after Analog purchased Hittite. Some of them only temporarily, appearing back in production with a new part number, some permanently. Some devices became "obsolete" overnight. We had a design ready for review by our international customers, only to be told they can't accept a new design with obsolete components.

[thenaimis]

How much extra is the main power supply?

[Petertronic]

The prices on those options are insane. This machine would never get near my workshop for that reason. Excellent review!

[karlporath]

It's like buying a car with, No wheels, no engine, no transmission, no interior, and no sheet metal, all optional extras.

[diatomsaus]

Vector Network Analyser: $609
Demodulation Analysis (ASK/FSK): $629
Distance to Fault: $289
EMI: $449
AM/FM Modulation options: €319.00 = $375
Advanced Measurement Kit: €364.00 = $428

So... $2779 in total for all upgrades!

Doesn't include the hardware necessary.

[headmetal]

The options policy killed this, sadly. But I really am a sucker for looking under the RF shielding, just delightful!

[Car_Ram_Rod]

Any chance on getting hands on a rigol 7000 o-scope? Also, I want the batt bump enabled version.

[TheDefpom]

I notice at 40:30 that D46, D47, D48 are not installed in the tracking gen, I suspect that they would of been protection diodes for reverse DC input, maybe they effected the output in some way and were not really needed because of the capacitive coupling from the port anyway.

[bfx]

What you miss is material used for those filters. In "highish" version is there some ceramic substrate used for those filters (like Rogers).

[BradMaestas]

I'm considering this puppy for my lab and ham adventures. As of 2019.09.23 Siglent started including the VNA option for free which is fantastic. TEquipment currently has it listed for $1635.62. It doesn't seem like there's much in the way of competition right now so I may have to bite! 73 de KN6MEC

[adamadamhoney]

Thanks Dave. Long time lowballer on Patreon bit you've helped me in my professional life volumes. Keep up the great content and telling it like it is. BNE fanboy.

[KX]

My friend just bought a new build house where interior flooring wasn't included in the price. This video reminds me of that.

[richfiles]

The processing on the daughtercard is a really spiffy idea! Solid points, regarding reducing the size of the multilayer board area, and potentially standardizing the processing across products!