Author Topic: Spectrum Analyzer - Rigol DSA815  (Read 457915 times)

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Offline N8AUM

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #925 on: March 23, 2018, 06:08:28 pm »
cyberfuzzy, It will time out and you will have to hit the "Preset" to restart the hour. Before you power off to do the "mod" setup the analyzer where you want it to be when it powers up since those will be the settings it will use when you power up or hit the preset.

Good luck  N8AUM 
 

Online Zucca

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #926 on: June 30, 2018, 10:18:17 am »
FYI

I have the following DSA



went from FW 00.01.18.00.02 to FW 00.01.19.00.02, everything went well but as always the SSC-DSA remain deactivated.
If anybody knows how to activate the pesky SSC-DSA please drop a line here.
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Offline shodan@micron

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #927 on: August 19, 2018, 06:57:43 pm »
Corrosion in ABSOLUTELY NEW rigol DSA815-TG. :wtf:
 :palm:

I knew that rigol is garbage, but I did not think rigol is sh%t. Now i know that... is sh%t!
« Last Edit: August 19, 2018, 07:09:49 pm by shodan@micron »
 

Online Zucca

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #928 on: August 19, 2018, 07:58:41 pm »
Sometime I forgot to tear down my new kids, your post reminds me to do that always.
Warranty label still intact I hope?
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Offline shodan@micron

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #929 on: August 19, 2018, 09:47:13 pm »
Unfortunately no...
I try remove it, but do this little inaccurate... and broke :palm: |O
 

Online bd139

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #930 on: August 19, 2018, 10:03:15 pm »
Missed a new DSA815 with TG go on ebay the other day for a stupidly low price of £415 BIN.

Kind of glad now I've seen that corrosion. That's just shit.

TBH their kit scares me. I'm shifting my DS1054Z at the moment in favour of an older Tek TDS and need a suitable replacement for a DG1022Z as well. I'm up cash, repairability and being able to sleep at night then.
« Last Edit: August 19, 2018, 10:04:49 pm by bd139 »
 

Online TurboTom

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #931 on: August 19, 2018, 10:57:09 pm »
What's the problem with a little surface corrosion at a punched-out edge as long as the instrument is performing as per the specs? This corrosion on these zinc-plated enclosure components will start if the parts are stored (unassembled) for two days under humid climate. It happened to other manufacturers as well. If you keep your instrument in a dry lab, this corrosion won't get any worse and it won't affect performance. I would take a DSA815TG for 415UKP (or 500 EUR) any day if I had not already got one (with or without rust...  ;) )
 

Online bd139

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #932 on: August 19, 2018, 11:01:11 pm »
I remember the first line of cheap PC clones that my father imported into Europe from Taiwan in the mid 1980s. The corrosion is semi infectious from what I saw. You’d find a couple of years down the line that other components had started corroding. Cheap tinned steel parts in particular.
 

Online TurboTom

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #933 on: August 20, 2018, 05:32:59 am »
That's true for tin-plated steel. But the zinc plating provides electrochemical protection (which I'm not sure of in case of the tin - I rather guess it wouldn't), so the risk of propagation of the corrosion is rather low. As a preventive measure, one could spray/wipe a thin layer of grease on the affected areas to displace any potentially present moisture. WD40 won't work permanently since it tends to evaporate completely over the time. In Germany we've got a weapon oil spray called "Ballistol" which does a really great job at protecting bare steel surfaces from corrosion - I guess similar agents are available elsewhere as well.
 

Offline shodan@micron

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #934 on: August 20, 2018, 10:31:28 am »
TurboTom - I no talk about cleaning from corrosion.
It's about the extremely low quality of the Rigol devices, at a fairly high price. With that quality price must be 3-4 times lower.

I have electronic load from Rigol - is too buggy.
Now spectrum analayser - with corrosion.
 :--
2 of 2 Rigol devices in my lab - is too low quality.... 100% defected...  :horse:
Next time i grab more money and buy R&S... not a Rigol...

PS.I try full disassemble my SA, and clean that. I will try do it carefully, without open a UHF box. I hope calibration not degraded.
« Last Edit: August 20, 2018, 10:49:31 am by shodan@micron »
 

Online TurboTom

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #935 on: August 20, 2018, 11:10:26 am »
But that's what a forum is good for - providing a detailed opinion on these instruments. The Rigol load in its current condition is not worth buying. I don't know when you purchased yours but the corresponding tests are online since ten months. The opinion on that product was fairly unison negative. Recommendations go in the direction of Maynuo, Itech or BK, or if you prefer a TFT screen maybe also Applent. These entry-level loads work faily well and are worth their money.

The DSA815 is a rather old design, though modernized at some time but definitely not the best bang-for-buck from a 2018 year's point of view. In this forum, you will probably be advised to look at the Siglent (can also be rusty...) SSA3021. These recommendations will be backed by many individuals who gained some common experience and make it available here for those looking for the best purchase in the instrument category/class they are about to get.

Moreover, decent T&M equipment distributors will offer a money-back period of a month or so, so in case one is really unhappy with the purchase, no worry, just send it back. If this is common in your country (Russia?) I don't know, but then a forum like this should be even more valuable.

Anyway, I understand your point of feeling offended by Rigol and that you won't buy any of their products in future. For comparison, there are other products of this manufacturer that apparently are decent quality though it also took them a while to get them right. I read few complaints from DS1000Z and DS2000A owners and the DP800 PSUs are also usable.

I hope you'll find a solution for the problem and that you'll finally be able to get the instruments that you're satisfied with.

Cheers,
Thomas
« Last Edit: August 20, 2018, 12:40:47 pm by TurboTom »
 

Offline shodan@micron

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #936 on: August 20, 2018, 11:26:40 am »
Yes i understand, maybe my choice of measurement equipment not a "best" for 2018y.
Anyway, i hope my opinion and disassembly helps EEVBLOG users choice good equipment.

Our Rigol dealers don't take back opened SA device.
« Last Edit: August 20, 2018, 11:34:30 am by shodan@micron »
 

Online Zucca

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #937 on: August 20, 2018, 11:34:25 am »
Depends,

I use the Rigol DSA815 TG twice a year. I needed a cheap ass SA not made 100% of chinesium.
For my needs the DSA815 is fine, you get what you paid.

If you are a serious RF ninja... run Forrest run.
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Offline shodan@micron

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #938 on: August 20, 2018, 11:45:13 am »
I also need SA very rarely because that i buy simplest SA from Rigol.
But if I suspected of such problems, I would buy a good brand such as R&S.

IMHO: When prices over 1k$ i wait some quality form equipment's, and long time to work without magic smoke.

Oh... i stop talking now... going to disassemble and clean it! It's more useful....
« Last Edit: August 20, 2018, 11:52:59 am by shodan@micron »
 
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Offline shodan@micron

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #939 on: August 20, 2018, 05:00:51 pm »
I clean up.  :D
Rust and debris has clean.

And of course install a FRAM write key (NC button)  >:D
I hope SA be work properly a long time.
« Last Edit: August 20, 2018, 05:08:22 pm by shodan@micron »
 

Offline Wolfgang

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #940 on: August 23, 2018, 12:38:23 pm »
Hi,  I use two DSA815TGs and I like them for everyday, uncritical work.
This one solves most standard chores, and it is hard to get more bang for the buck.
I can recommend those because the bugs seem to be gone and they are reliable.

Dave Jones has done a review on them, you certainly have seen this.



 

Offline n5kzw

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #941 on: September 15, 2018, 08:59:06 pm »
I'm sorry for hijacking your post, but could someone tell me how to post a new thread in this section of the forum?  I cannot get into the maintenance mode on my new DSA815-TG.
 

Offline ted572

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #942 on: September 15, 2018, 11:11:35 pm »
I cannot get into the maintenance mode on my new DSA815-TG.

Welcome 'n5kzw' to the EEVblog.  The DSA800 Series Maintenance Mode access is described in the following PDF file:  Credit's go to EEVbloger PeDre.
I also added information for 1.) accessing the units Full Firmware Version info, and 2.) adjusting the DSA800 Frequency Standard's 10 MHz.
Caution! Do NOT experiment in Maintenance Mode with any selections you DO NOT completely understand.  You can easily screw up your unit without even realizing it just happened.

 
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Offline n5kzw

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #943 on: September 16, 2018, 10:24:29 pm »
When I follow all of the key sequences listed on the web and in the Rigol service note, after hitting the STORAGE button I do not get the "Welcome to Maintenance Mode" message, and pressing the SYSTEM button does not offer a Service > Calibration option on the second or third page of the menu; it just shows the normal STORAGE menu.  The unit shipped with FW version 00.01.19, and I have made the demo timer reset mod.
 

Offline ted572

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #944 on: September 17, 2018, 12:07:22 am »
When I follow all of the key sequences listed on the web and in the Rigol service note, after hitting the STORAGE button I do not get the "Welcome to Maintenance Mode" message, and pressing the SYSTEM button does not offer a Service >
You want to select the Maintenance Mode.  Please just use the selection sequence for selecting the Maintenance mode using the 'DSA800 Maintenance Mode .pdf' (with a graphic display of the Keys).  You have 9 button presses before you will see 'Welcome to Maintenance Mode'.

By the way the STORAGE button isn't required to exit the Maintenance Mode and returning to Normal Mode.  Simply starting with the second button (Enter) always works, as the first button (Storage) isn't normally even required to use, although it still works fine as shown here either way.

What is this about on the Web and a Service Note?  Please use the PDF files I provided.
« Last Edit: September 17, 2018, 12:26:51 am by ted572 »
 

Offline n5kzw

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #945 on: September 17, 2018, 04:10:58 am »
Thank you very much for the updated information.  I was relying on info from:  a youtube video by KD0RC on calibrating against WWV, a document titled "Rigol DSA815-TG Hidden Modes" dated 2014-09-12, and a Rigol document titled "10MHz Clock Frequency Adjustment: DSA-815" dated 01.30.2013.

The above references are not applicable to current production; your data is.
 

Offline PeDre

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #946 on: October 28, 2018, 01:47:25 pm »
There are undocumented SCPI commands with temperature. With the DSA815 there is no output, but maybe they work for you.

:PRIVate:TEMPeratue:GET? -> 0.000000E+00
:PRIVate:TEMPeratue:COMPensate:STATe ON/OFF
:PRIVate:TEMPeratue:COMPensate:STATe? -> 0/1

Peter
 

Offline ted572

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #947 on: November 02, 2018, 03:12:24 pm »
I revised the 'DSA800 Maintenance Mode .pdf' (for the DSA705 - DSA875) to include the critical Buttons that should Not be Pressed, or Experimented With.  These are the only dangerous Buttons at this Time that that I know of that must be left alone.  There of course could be additional risky Buttons in the future that come up, as newer DSA800 Firmware is released.  Although this seems unlikely due to the maturity of this product line.  Please understand that anything you do in the Maintenance, Service Mode is at your own risk!

If you only use the Maintenance Mode for - 1. Calibrating the DSA800's 10 MHz Freq. Std., and 2. Obtaining the Full System Information, you should be fine.
« Last Edit: November 09, 2018, 02:02:51 am by ted572 »
 
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Offline ted572

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #948 on: November 06, 2018, 02:34:39 am »
DSA800 (DSA705 - DSA875) 10MHz Frequency Standard Calibration Procedure

If you have Fram Write Protect (FWP) enabled to secure Options, you must temporarily disable it before being able to do the 'Ref DAC' Adjustment (for 10 MHz Calibration).  Don't forget to re-enable FWP when done.  And please remember to follow the FWP cautions (!) concerning when/how to enable/disable FWP.  Note that I provided this information/cation in the postings on incorporating FWP, so this is not new information.

Edit Nov. 15, 2018:  Title changed to Bold Type, and added a Note about 'Fram Write Protect', if it is incorporated in your unit (added by request from EEVblog users).
« Last Edit: November 15, 2018, 04:32:02 pm by ted572 »
 
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Offline xrunner

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Re: Spectrum Analyzer - Rigol DSA815
« Reply #949 on: November 06, 2018, 02:39:40 am »
Thanks for posting that.
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