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Rigol HDO1000 and HDO4000 12bit oscilloscopes launched in China

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Bit2023:
Thank you for the reply.

would a upgraded Siglent SDS2000X plus do the job then?

(Just trying to see if I can money by not buying a microSA ultra for my HAM stuff)
- check Tx power - - time 5:20(ish)
- check FCC compliance (spurious emissions) - - time 5:34

Fungus:

--- Quote from: Bit2023 on July 16, 2023, 06:34:37 am ---Thank you for the reply.

would a upgraded Siglent SDS2000X plus do the job then?

(Just trying to see if I can money by not buying a microSA ultra for my HAM stuff)

--- End quote ---

If it's for "HAM" then the TinySA ultra is designed for the job. They only cost around $120.  :-//

https://www.tinysa.org/wiki/

https://www.aliexpress.com/item/1005004934403303.html

maxwell3e10:
I took some data to directly compare analog performance of Rigol DHO1074 to a now fairly old Owon XDS3062A with 12 bit resolution. Both were used with 500MS/sec sample rate and 1 Mpts. Rigol is not upgraded. I measured noise with 1 MOhm shorted input on 1 mV/div scale and 1 V/div scale. I also tested them with a sine generator, HP3326, to check nonlinearity.


In general, I would say there is no absolute winner. Owon scope still has a higher dynamic range on 1 V/div scale so is a better "HD", but it also has a somewhat larger non-linearity and messier spectrum at high frequency. The noise spectrum on 1mV/div is on average similar, but Rigol's is much cleaner. One place were there is a large difference in favor of Rigol, by nearly an order of magnitude, is in how long it takes to transfer data to the computer over Ethernet.



colorado.rob:

--- Quote from: Bit2023 on July 16, 2023, 06:34:37 am ---Thank you for the reply.

would a upgraded Siglent SDS2000X plus do the job then?

(Just trying to see if I can money by not buying a microSA ultra for my HAM stuff)

--- End quote ---
No, they are intended for very different purposes.

In general, you want a device that has at least 4x higher bandwidth than the highest frequency you will be testing. You want to be able to see at least the first 3 harmonics. And for 70cm band, that means on the order of 2GHz. For that, a spectrum analyzer is the best option. The cheapest option for your needs is an RTL-SDR ($20) with the right spectrum analysis software, but the bandwidth is a bit low for UHF harmonic analysis. A Pluto SDR ($200) would be my go-to recommendation for hams as a general purpose instrument for RF analysis for those on a budget. It easily has the frequency range required.

A lab quality instrument to meet your needs is an SVA1032X (or uphack an SVA1015X).

tautech:

--- Quote from: colorado.rob on August 07, 2023, 09:01:35 pm ---A lab quality instrument to meet your needs is an SVA1032X (or uphack an SVA1015X).

--- End quote ---
Not possible.

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