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Agilent E7495 linux root account
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kirill_ka:

--- Quote from: jordi on July 06, 2020, 04:19:50 am ---Still waiting for my CF to arrive, <2GB cards are not very common anymore and are overpriced.

--- End quote ---
I think I have 4GB card in my E7495 (can't check it now). Maybe you can use a smaller partition on a bigger card.


--- Quote from: jordi on July 06, 2020, 04:19:50 am ---But if you know a trick to just dump the entire "hard drive" via FTP, so I don't do it one by one, please let me know.

--- End quote ---
There are some advanced FTP clients such as lftp or Filezilla. Possibly you need to do some tricks to allow FTP to access the whole filesystem.
kirill_ka:

--- Quote from: jordi on July 06, 2020, 04:00:17 am ---The GPS fix seems to work (at least it didn't crash or hang the device). But I'm not sure how to test it. If I go to and try to do the time base adjustment, it won't allow me (I press start and it doesn't do anything), maybe I need to have a GPS fix before activating? 

--- End quote ---
Do you have a GPS antenna connector (as pictured in the datasheet)? If not, you might be missing a receiver module.
No, the fix is not required. You should be able to set GPS as a frequency reference. When it's locked (needs an external antenna), you should see a green circle and time/date synchronized with the GPS.

I've extracted and comapred strings from E7495 and L4600A versions of the elgato.
The following looks like new options appeared on the L4600A:
FM Analyzer & Signal Generator
Low Frequency Extension for Source
PCMCIA IQ Modulation for Signal Generator
GPS Receiver
FM Audio Output Connector
jordi:


--- Quote from: DogP on July 06, 2020, 06:04:18 am ---BTW, regarding custom waveforms... I posted this: https://www.eevblog.com/forum/testgear/agilent-e7495-linux-root-account/msg1054142/#msg1054142 and https://www.eevblog.com/forum/testgear/agilent-e7495-linux-root-account/msg1054570/?topicseen#msg1054570 for making custom waveforms to replace the existing ones.  I'd suspect that the option 290 uses the same arbitrary waveform format (16-bit I/Q), but allows the file to be specified rather than having to replace built-in files (curious what the size limitations are though).  As I mentioned in one of those posts though... the arbitrary waveform generator doesn't suppress the LO or image, so its usefulness is somewhat limited.

DogP

--- End quote ---

Very, very cool, I will give it a look on my next weekend. Thanks for sharing!
jordi:

--- Quote from: kirill_ka on July 06, 2020, 07:35:53 am ---Are you sure you are desperate enough? It may be well cheaper and easier just to buy a standalone power meter.
I used the measurement board from my E7495 to populate a second channel in a E4418 power meter.
The board from E7495 has it's own power reference while the E4418 doesn't have the power reference on the measurement board.
That's the only difference I see.
The remaining hw stuff you might be missing:
1. Power reference connector.
2. Sensor connector.
3. Power meter interface board.
4. Sensor cable.
5. The sensor itself.
6. Ribbon cables.

Plus you need to connect all the stuff and enable the option correctly.
If you still want to go this route, I can afford you some parts I have leftover.

--- End quote ---
No, you are right, I don't even have the internal hardware. I purchased another E7495B which has the port, maybe I will fool with it a little. PM the stuff you have.

I need an accurate power meter to calibrate my radios at ISM bands between 1Watts to 1.5Watts.
jordi:

--- Quote from: kirill_ka on July 06, 2020, 11:26:28 am ---Do you have a GPS antenna connector (as pictured in the datasheet)? If not, you might be missing a receiver module.
No, the fix is not required. You should be able to set GPS as a frequency reference. When it's locked (needs an external antenna), you should see a green circle and time/date synchronized with the GPS.

I've extracted and comapred strings from E7495 and L4600A versions of the elgato.
The following looks like new options appeared on the L4600A:
FM Analyzer & Signal Generator
Low Frequency Extension for Source
PCMCIA IQ Modulation for Signal Generator
GPS Receiver
FM Audio Output Connector

--- End quote ---

Niet, I'm ordering an active antenna, the one I have here uses 3.3V, intended for an uBlox module. I might have blown it, the E7595 GPS SMA port is outputting 5V (bias). I will report on that.

Whoever, on the bottom left of the main screen I see "GPS Unlocked", and on the bottom right of the main screen is a green dot with "Int Ref" label. So even without fixing any sats, it is capable to grab the clocks? Interesting.

Thanks!
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