Sending Assisted GNSS (A-GNSS) to Bangle 2 GPS (AT6558)

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•

HilmarSt
Nice:
```
AGNSS data from CASIC.
DataLength: 2434.
Limitation: 7/1000.
...
```
I'm number 7 of 1000 allowed downloaders.

How did you do that?

•

Mark_M in reply to @HilmarSt
I'm number 7 of 1000 allowed downloaders.

me too :)

I suspect the bin is something specific to CASIC. I do not know what it is for.
The actual EPO file is in subdir with name of YYYYMM, https://api.smawatch.cn/epo/202201/

You can also download big EPO from
http://epodownload.mediatek.com/EPO.DAT
people is saying...
```
This information can be downloaded from MediaTek as well, in a much larger file, comprising 30 days of satellite data
http://epodownload.mediatek.com/EPO.DAT
MediaTek 276480 bytes vs Garmin's 64512
but only 28 days with valid data seem to be present at all times. Day 29 and/or 30 have all their satellite number fields zeroed out (00).
```
https://www.reddit.com/r/Garmin/comments/hyg0l5/manual_gps_epobin_update_with_garmin_offline_for/

so it probably needs to be shrunk to the first 258048 bytes.

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