Nov 9 2019, 03:00 PM
QUOTE(khk1987 @ Nov 5 2019, 03:58 PM)
Yeah too confusing, best to try out with unifi mobile sim. But from dlink router we cannot know which band it connects. Check your model revision number, I found there's B, C1 and C3 revision for dwr-921. C3 will have all the bands I believe.
Unifi air running on band 5 (850Mhz)/40 (2300Mhz) or maybe 38 (2600Mhz) on any network types regardless, but also depending on your area/location; Most of the time unifi air connect to band5, sometimes switched to Band 40 at my area.
When choose a router, make sure the Wifi/Mobile Router is unlock if you plan to subscribe SIM only. I'm using Huawei e5885ls-93a WIFI 2Pro.
How to choose correct 4G Mobile router, check the spec of network type. If you not sure which mobile router to choose, select the spec contain all bands but it will cost double the price.
LTE FDD：B1/B2/B3/B4/B5/B7/B8/B20/B19
LTE TDD：B38/B40/B41(2555-2655MHz)
UMTS：B1/B2/B4/B5/B6/B8/B19 ---> This is 3G, you can see only band 5 support 3G if no signal on 4G
GSM：B2/B3/B8/B5
If you want to know which BAND connect by Unifi at your area, test with any latest mobile phone, install "Network Cell info Lite" from google play. see attached.
https://pictr.com/images/2019/11/09/58fB8Z.md.jpg
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