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 51 
 on: July 27, 2025, 04:31:05 16:31 
Started by knave - Last post by knave
Thanks, I had already tried that. I was able to find the file name there, but unfortunately, it's not available anywhere.

https://web.archive.org/web/20090403204306/http://www.u-blox.com/customersupport/antaris4_fw.html

 52 
 on: July 27, 2025, 10:34:45 10:34 
Started by knave - Last post by Sideshow Bob
Hi everyone,

I'm trying to locate the firmware for a ~20-year-old u-blox TIM-4H-0-000 GPS module that is built into an older instrument I'm working with. Unfortunately, the original firmware seems to have vanished from the internet.

I'm specifically looking for:

    ANTARIS Firmware V5.00 for LEA-4H / TIM-4H / AEK-4H Evaluation Kit
    Filename: ANTARIS_Fw_5.00_MOD-4H-Setup_963.exe
    Size: ~394.4 KB
    Date: ~2006-01-18

If anyone still has an old LEA-4H, TIM-4H, or AEK-4H Evaluation Kit, there's a chance the firmware installer might be sitting in your archive or CD-ROM.

Would greatly appreciate if someone could share the file or point me to a source.

Thanks in advance!
Have you heard about wayback machine, It can be helpful in cases like this
https://web.archive.org/web/20090203090557/http://u-blox.com/customersupport/antaris4_fw.html
I found your file in the 2009 version of the site. Before that the firmware was hidden behind registration. So a few cut and try may be needed
https://web.archive.org/web/20090203090557/http://u-blox.com/customersupport/antaris4_fw.html

 53 
 on: July 26, 2025, 02:19:18 14:19 
Started by knave - Last post by knave
Hi everyone,

I'm trying to locate the firmware for a ~20-year-old u-blox TIM-4H-0-000 GPS module that is built into an older instrument I'm working with. Unfortunately, the original firmware seems to have vanished from the internet.

I'm specifically looking for:

    ANTARIS Firmware V5.00 for LEA-4H / TIM-4H / AEK-4H Evaluation Kit
    Filename: ANTARIS_Fw_5.00_MOD-4H-Setup_963.exe
    Size: ~394.4 KB
    Date: ~2006-01-18

If anyone still has an old LEA-4H, TIM-4H, or AEK-4H Evaluation Kit, there's a chance the firmware installer might be sitting in your archive or CD-ROM.

Would greatly appreciate if someone could share the file or point me to a source.

Thanks in advance!

 54 
 on: July 26, 2025, 12:23:39 00:23 
Started by safkans - Last post by safkans
Thank you for your valuable information. The information in the PDFs was especially helpful.

Posted on: July 26, 2025, 12:21:33 00:21 - Automerged

If you are on a budget why not get some clones from China. I can see it would be fun to try to make by all means. But probably more expensive than a clone in the end
https://www.aliexpress.com/item/1005006849016531.html
https://www.aliexpress.com/item/32962211649.html


Of course. Just a curiosity.

 55 
 on: July 24, 2025, 04:04:03 16:04 
Started by safkans - Last post by sadman
If you're familiar with the SCT-013 series sensors, I'd like to build an equivalent sensor myself. How should I proceed? I'd appreciate your advice.

Same technique or topology used in these types of sensors (SCT-013) as described in attached article and application note hope this this will helpfull for you and friends here.


 56 
 on: July 24, 2025, 07:10:02 07:10 
Started by safkans - Last post by Sideshow Bob
If you are on a budget why not get some clones from China. I can see it would be fun to try to make by all means. But probably more expensive than a clone in the end
https://www.aliexpress.com/item/1005006849016531.html
https://www.aliexpress.com/item/32962211649.html

 57 
 on: July 24, 2025, 05:48:14 05:48 
Started by safkans - Last post by sadman
this type of sensor normaly based on linear hall effect senser and a coil wound around a ferrite or iron core i have some deisn and application note share once back home in evening

 58 
 on: July 24, 2025, 05:37:52 05:37 
Started by safkans - Last post by sphinx
well the cheapest one is wire wound around the cable where you want to measure your current

 59 
 on: July 23, 2025, 08:39:15 20:39 
Started by safkans - Last post by safkans
I want to measure AC current. I'm developing a home-use application. I've previously worked with flyback transformers at high frequencies like 3 kHz. I'm not exactly an amateur in this field. What I want is to produce a current-measuring sensor with a minimum cost, up to 30 amps. This might be outside the scope of traditional transformer logic. Who knows? I'm open to your ideas, Sonsivri members.

 60 
 on: July 23, 2025, 08:33:45 20:33 
Started by safkans - Last post by sphinx
Sorta looks like a university thesis project, if you were somewhat into electronics you would already know that it is a current transformer with a load built in hence the 1V output.

A split core type is more calculations compared to a non-split.

You want help with something let the users on sonsivri do all the guessing and figuring stuff out!

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