Products > Test Equipment
Rigol DHO804 Test and Compare Thread
Randy222:
--- Quote from: Fungus on December 07, 2023, 09:40:23 pm ---
--- Quote from: Randy222 on December 07, 2023, 09:35:39 pm ---My 804 just arrived from Aliexpress, it has firmware v00.01.02 dated Nov 9 2023.
It's not available as download on Rigol site.
What's new and/or fixed in 01.02 ?
--- End quote ---
Not much.
--- Code: ---
v00.01.02.00.00 2023/11/2
1. Self calibration optimization update
2. Solve the problem of UltraLab startup connection failure
3. Solve the problem of failure to save waveform in wfm format
4. Add education model equivalent settings
5. Solve the problem of unresponsive touch on startup screen
v00.01.01.00.02 2023/09/12
1. Self calibration optimization update
2. Update Help Documents
v00.01.01.00.01 2023/08/10
1. Remove all time-related displays on the instrument
2. To modify the vertical interface, click the wiring diagram to modify the AC coupling function
3. Modify the delayed scan Chinese display as Zoom
4. Modify the order of the menu in the upper right corner, put the measurement in the front and Default in the back
5. The probe ratio interface is removed, and the probe ratio option is added to the vertical first-level menu
v00.01.00.00.19 2023/07/24
1. The first version is released
--- End code ---
--- End quote ---
What's the meaning of v00.01.02.00.00 2023/11/2 date "Nov 2 2023"? Is that when the release note was made, or something other. My 804 shows one week later.
ebastler:
--- Quote from: Randy222 on December 07, 2023, 10:19:20 pm ---What's the meaning of v00.01.02.00.00 2023/11/2 date "Nov 2 2023"? Is that when the release note was made, or something other. My 804 shows one week later.
--- End quote ---
Never mind, a one week difference is spot-on for Rigol. They are not good with dates. Some of the release dates you find on their international sites are off by months, in either direction. ::)
Martin72:
I think that's how it will be, first the notes, then the "release".
However, I also think that this version, which has since been withdrawn, only applies to certain hardware configurations* - they probably had to make improvements and this does not apply to all variants.
This also explains why my DHO couldn't cope with the firmware and I "deleted" it again.
*) Due to component shortages, alternative elements were presumably used that required correction.
rpro:
--- Quote from: Fungus on December 04, 2023, 10:08:30 pm ---Note that you can set the channel labels to show the FFT window function in screenshots....
--- End quote ---
Also, while we wait for Rigol to add basic averaging features to their FFT, one can use pyvisa to acquire traces from the scope and display the avg result with a few lines of python code. Here is a minimalist working example:
import pyvisa as visa
import matplotlib.pyplot as plt
import numpy as np
scopedev = 'TCPIP0::192.168.0.10::5555::SOCKET' #four 5's
nSamples = 100
scope = visa.ResourceManager().open_resource(scopedev)
scope.read_termination = scope.write_termination = '\n'
print("Scope: ", scope.query("*IDN?"))
scope.write(":WAV:SOURCE MATH1;:WAV:FORM ASCii;:WAV:MODE NORMAL")
fstart = float(scope.query(":MATH1:FFT:FREQuency:START?"))
fend = float(scope.query(":MATH1:FFT:FREQuency:END?"))
X = np.linspace(fstart, fend, 1000, endpoint=True)/1e6
fftData =[]
for i in range(0,nSamples):
fftData += [np.array(scope.query(":WAV:DATA?").split(","),dtype=float)]
avgFFTdata = np.mean(np.array(fftData),axis=0)
plt.plot(X,avgFFTdata)
plt.grid(True, which="both")
plt.show()
Martin72:
Hi,
Just for fun, the boot times of the three little pi...no, scopes. ;)
I was comparing something else and thought to myself, oh, just make a clip.
I personally don't care about the boot time, I hate it with multimeters and recently also with power supplies.
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