SIerra Modem LTE only AT Command

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mezmerizz0454
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SIerra Modem LTE only AT Command

Post by mezmerizz0454 »

OK i probably over looked this, I did search the forums for Sierra modem 4G-LTE only AT commands
i looked at BillA's posts and Jim's posts maybe i just over looked it, but I'm after the AT command for EM7565 and EM7511 to put them in 4g-LTE only mode

found the 4G-LTE only command for Quectel modems
AT+QCFG="nwscanmode",3,1

but need the one for Sierra modems please,.
mezmerizz0454
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Re: SIerra Modem LTE only AT Command

Post by mezmerizz0454 »

Well i may have found the string i needed but would like confirmation so i don't do something crazy and brick my modem for Sierra modems it seems to be this

AT!SELRAT=06

would this be correct for LTE only bands?
steveg
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Re: SIerra Modem LTE only AT Command

Post by steveg »

mezmerizz0454 wrote: Fri Mar 20, 2020 12:04 pm Well i may have found the string i needed but would like confirmation so i don't do something crazy and brick my modem for Sierra modems it seems to be this

AT!SELRAT=06

would this be correct for LTE only bands?
Don't have those modems but have several other Sierra models (7455/7354). Should be the correct command, worst that could happen is you get an error back when entered.
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BillA
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Re: SIerra Modem LTE only AT Command

Post by BillA »

mezmerizz0454 wrote: Fri Mar 20, 2020 12:04 pm Well i may have found the string i needed but would like confirmation so i don't do something crazy and brick my modem for Sierra modems it seems to be this

AT!SELRAT=06

would this be correct for LTE only bands?

You can check the currently active bands via:
AT!BAND=?

00 - All bands
01 - Europe 3G
02 - North America 3G
06 - Europe
07 - North America
08 - WCDMA ALL
09 - LTE ALL

Set general band preference via:
AT!BAND=<two_digit_above>

For specific bands use the Sierra band calculator post on this forum.
https://wirelessjoint.com/viewtopic.php?f=16&t=364

Reset the RAT to default via:
AT!SELRAT=00
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