Sierra Wireless Modems - Programming Carrier Bands

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LTE7B
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Re: Sierra Wireless Modems - Programming Carrier Bands

Post by LTE7B » Sat Feb 29, 2020 3:43 pm

Can anyone tell me what AT! command would tell me what Bands my Sierra modem is detecting? Not which bands it's capable of, but which bands are available/ detectable from my tower. Thanks!

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JimHelms
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Re: Sierra Wireless Modems - Programming Carrier Bands

Post by JimHelms » Sun Mar 01, 2020 9:08 am

To my knowledge, the Sierra Wireless modem will not tell what bands are available on a certain tower, only want bands the modem is capable of receiving, and what bands it is currently using for its connection.

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BillA
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Re: Sierra Wireless Modems - Programming Carrier Bands

Post by BillA » Sun Mar 01, 2020 10:02 am

LTE7B wrote:
Sat Feb 29, 2020 3:43 pm
Can anyone tell me what AT! command would tell me what Bands my Sierra modem is detecting? Not which bands it's capable of, but which bands are available/ detectable from my tower. Thanks!

In order to find out all the usable bands in your particular area, you could lock the modem to each band one by one, do an AT!GSTATUS? status after each new lock, and look at the RSSI/RSRP signal.
If it's around -100db AND you can access the internet in a browser, then write it down as one of the usable bands.

These are all the possible bands you can try for each model:
MC7455
B1, B2, B3, B4, B5, B7, B12, B13, B17, B20, B25, B26, B29, B30, B41

EM7511
B1, B2, B3, B4, B5, B7, B8, B9, B12, B13, B14, B18, B19, B20, B26, B29, B30, B32, B41, B42, B43, B46, B48, B66

EM7565
B1, B2, B3, B4, B5, B7, B8, B9, B12, B13, B18, B19, B20, B26, B28, B29, B30, B32, B41, B42, B43, B46, B48, B66

If you don't want to try all bands, then at least try these carrier specific ones:
"*" = main bands
ATT = *2, 4, 5, 12, 14, 17, 29, 30, 46, 66
TMO = 2, *4, 5, 12, 46, 66, 71
VZW = 2, 4, 5, *13, 66
SPR = *25, 26, 41

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