Author Topic: New Rigol RSA5000 Real Time Spectrum Analyser  (Read 26831 times)

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Offline eleguy

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Re: New Rigol RSA5000 Real Time Spectrum Analyser
« Reply #150 on: February 21, 2021, 07:13:41 pm »
Another interesting random mistake:

RSA3015N running as RSA5032N

Could you elaborate how this mistake happened?
 

Offline qip

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Re: New Rigol RSA5000 Real Time Spectrum Analyser
« Reply #151 on: March 01, 2021, 08:33:49 am »
Hi Sighound36, can you please perhaps provide a BOM for the PSU modification? Or same values, just lower ESR? BOM would be nice nevertheless, so I can order the parts. tia! qip
« Last Edit: March 06, 2021, 09:22:36 am by qip »
 

Offline qip

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Re: New Rigol RSA5000 Real Time Spectrum Analyser
« Reply #152 on: March 01, 2021, 08:39:32 am »
Hi tv84, thanks for your great work already, I am also looking at the firmware, but currently stuck at the cramfs images. I see that this might me a non standard cramfs format, quite similar but the inodes are 1 block (4 bytes) longer than the spec. Having already mapped a few of the additional bytes, but not there yet. How are you unpacking the rom images?
 

Offline qip

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Re: New Rigol RSA5000 Real Time Spectrum Analyser
« Reply #153 on: March 04, 2021, 03:47:12 am »
Well I got it, and looks like the RSA3030-TG got the -E treatment, or maybe I am missing something with my method. :-//

After doing some convincing for 6.5GHz, there is a sharp cutoff at exactly 3.2GHz, guess there is some HW path not populated like in post #101 https://www.eevblog.com/forum/testgear/new-rigol-real-time-spectrum-analyser/msg2833482/#msg2833482. Don't think they have redesigned the board in such a short time and haven't had a look inside yet.

Caldata freq ranges are the same as in the already mentioned excel sheets for RSA3030-TG.

If someone would be willing to compare HW revisions or upgrade methods, let's work on it.
 

Offline tv84

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Re: New Rigol RSA5000 Real Time Spectrum Analyser
« Reply #154 on: March 04, 2021, 10:22:42 am »
If someone would be willing to compare HW revisions or upgrade methods, let's work on it.

AFAIK, you're in the right track. What you see should be the result of unpopulated areas. At least, I've been unable to overcome that via software.

So far I've only seen a unit that allowed the full 6.5Ghz upgrade. Sadly, never saw its internals...
 

Offline qip

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Re: New Rigol RSA5000 Real Time Spectrum Analyser
« Reply #155 on: March 04, 2021, 11:21:06 am »
Quote
AFAIK, you're in the right track. What you see should be the result of unpopulated areas. At least, I've been unable to overcome that via software.

Yea I just realized the HW Version: 00.01.02 vs. your 00.01.01. So they might have not placed the components in the newer versions, guess end of the line without knowing U307.
 

Offline chrismholt

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Re: New Rigol RSA5000 Real Time Spectrum Analyser
« Reply #156 on: March 31, 2021, 02:02:05 am »
I just ordered an rsa3015n. Im excited to try upgrading it. I was wondering where to start learning. Is the method similar to an oscilloscope outlined in another thread?  Where should I start reading?
 

Offline EE-digger

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Re: New Rigol RSA5000 Real Time Spectrum Analyser
« Reply #157 on: April 01, 2021, 03:03:37 am »
I've just stopped short of ordering either a 3015N or 3030N after watching the Rigol videos.  It's probably unfair to compare it to a high end brand A unit.

One thing I found interesting is that their DTF (distance to fault) seems to only have around 50mm resolution.  The brand A unit can get down to 1- 2mm or better.  Since both are set to 3GHz, this limitation would seem to be in their transform math or sampling resolution in hardware.

On cabling that's 10s or 100s of feet, this may not be much of an issue but on more compact assemblies it is.

Has anyone performed an SOLT cal with a good quality cal kit?  What do you see for return loss when re-examining the load?  What do the open and short look like?

« Last Edit: April 08, 2021, 03:11:46 pm by EE-digger »
 

Offline tv84

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Re: New Rigol RSA5000 Real Time Spectrum Analyser
« Reply #158 on: May 04, 2021, 07:36:02 pm »
Comparing the inside of these equipments:

It's not possible to convert Rigol RSA30xxE to RSA30xxN.

BTW, RSA3000E is even different from RSA3000, so 100% upgrade is not possible. There are some missing parts.
 

Offline mysol

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Re: New Rigol RSA5000 Real Time Spectrum Analyser
« Reply #159 on: Yesterday at 08:04:04 pm »
What about 50% upgrade?) At least unlock features or maybe getting 3 GHz from 1.5
 


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