Author Topic: Rohde Schwarz FSH8 SA basic teardown repiar and experiments  (Read 483 times)

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Offline Samogon

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I just got FSH8 handheld 8GHz spectrum analyzer from auction with broken display lens. I took a risk with hope that this is only damage it got.
I had FSH3 before and it was smaller, lighter than FSH8. And there is a reason. FSH8 is completely different beast, different engineering approach.
FSH3 digital part was almost the same as Fluke 192 series oscilloscope.
Fortunately for me SA was in good functional condition and i did not dare to open RF shielding can. So there are only pictures of naked can no RF porn.
« Last Edit: June 30, 2018, 04:54:37 am by Samogon »
 
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Offline Samogon

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reserved repiar
« Reply #1 on: June 30, 2018, 04:44:29 am »
Repair was boring two week long negotiation registration and ordering parts from R&S. Probably no need to mention that parts from R&S are arm and leg :)
Also ordered aftermarket battery claiming 10,000mAh :)
Once parts were delivered it took couple of hours to finish the job.

Have to admin R&S accepts money from poor people like me, not snob like Keysight.
« Last Edit: June 30, 2018, 05:19:30 am by Samogon »
 

Offline Samogon

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reserved for experiments
« Reply #2 on: June 30, 2018, 04:46:29 am »
reserved
 

Online DaJMasta

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Re: Rohde Schwarz FSH8 SA basic teardown repiar and experiments
« Reply #3 on: June 30, 2018, 05:01:12 am »
Not even a peak under the can?  :D


I think it being a different beast is right on the money, the FSH series is actually a whole slew of major revisions to the product - instead of just renaming them like other R&S stuff, they kept FSH and just kept making new analyzers altogether.  I believe the order is something like FSH3+6 is the earliest variant, then the updated ones are marked like FSH3.13 or otherwise to indicate options, then the next version was the FSH4/8 introduction, no longer making the 3s and 6s, then I believe there's one revision beyond yours with a higher res screen and a different front styling.  Not sure why they haven't differentiated the part names more, but I suppose I can understand why they'd want to keep the H for their handheld analyzers.

Does that mean the screen is damaged, or just the protective cover?
 

Offline Samogon

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Re: Rohde Schwarz FSH8 SA basic teardown repiar and experiments
« Reply #4 on: June 30, 2018, 05:08:04 am »
just EMI shielding lens. I was lucky this time.
 


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