Products > Test Equipment
Keysight 3000T scope 1 GHz(or more) hardware upgrade mod
<< < (8/27) > >>
mrpackethead:

--- Quote from: TheSteve on June 30, 2017, 04:03:13 am ---f C1 to 2.4 pF on channel 4 and 3.3 pF on channel 1. This gives me amplitudes within 10-15mV between all channels when looking at a 1 Vpp signal at 1 GHz. The 3 dB cutoff frequency of all channels is between 1060 and 1070 MHz. At 1 GHz the attenuation is about 1.5 dB. Seems like pretty darn acceptable performance to me.
Another forum member will be modifying his scope in the near future, so we will see how his does.


--- End quote ---

Do you think this will be the same on all scopes, or is this something that more likely will need to be tweaked on a per scope basis?

TheSteve:
A rough guess suggests it will vary on all scopes. We should know in a week or two when another scope meets the soldering iron.
LabSpokane:

--- Quote from: electrolust on June 30, 2017, 05:56:26 pm ---
--- Quote from: Keysight_DanielBogdanoff on June 30, 2017, 03:45:46 pm ---And, as is made clear by the mod, the whole backend of the scope is capable to 1 GHz (or higher  >:D)

--- End quote ---

The gauntlet has been thrown!  OK next level mod is to take this thing to 1.2 or 1.5GHz!!

--- End quote ---

The next step is for someone to design and open-source active probe to make use of this kind of horsepower between 500Mhz and 1GHz.  Keysight's 2795A probe starts at $1K ea, which is a lot less than what they used to be, but still not inexpensive. 
Someone:

--- Quote from: LabSpokane on July 02, 2017, 01:24:40 am ---
--- Quote from: electrolust on June 30, 2017, 05:56:26 pm ---
--- Quote from: Keysight_DanielBogdanoff on June 30, 2017, 03:45:46 pm ---And, as is made clear by the mod, the whole backend of the scope is capable to 1 GHz (or higher  >:D)

--- End quote ---

The gauntlet has been thrown!  OK next level mod is to take this thing to 1.2 or 1.5GHz!!

--- End quote ---

The next step is for someone to design and open-source active probe to make use of this kind of horsepower between 500Mhz and 1GHz.  Keysight's 2795A probe starts at $1K ea, which is a lot less than what they used to be, but still not inexpensive.
--- End quote ---
Keep an eye out for any of the N2795A, 1156A, and 1152A. All come up well under $1000.
TheSteve:

--- Quote from: Someone on July 02, 2017, 02:48:32 am ---
--- Quote from: LabSpokane on July 02, 2017, 01:24:40 am ---
--- Quote from: electrolust on June 30, 2017, 05:56:26 pm ---
--- Quote from: Keysight_DanielBogdanoff on June 30, 2017, 03:45:46 pm ---And, as is made clear by the mod, the whole backend of the scope is capable to 1 GHz (or higher  >:D)

--- End quote ---

The gauntlet has been thrown!  OK next level mod is to take this thing to 1.2 or 1.5GHz!!

--- End quote ---

The next step is for someone to design and open-source active probe to make use of this kind of horsepower between 500Mhz and 1GHz.  Keysight's 2795A probe starts at $1K ea, which is a lot less than what they used to be, but still not inexpensive.
--- End quote ---
Keep an eye out for any of the N2795A, 1156A, and 1152A. All come up well under $1000.

--- End quote ---

Keep in mind that to use the 1152A with the 3000A/3000T series of scopes the probe needs to be modified.
https://www.eevblog.com/forum/testgear/agilent-1152a-active-probe-'smartprobe'-conversion-for-dsox3000-series-scopes/
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod