废话不多说，稍微整理一下几台分享器支援频段，
明明只有一个副门号，机器却越买越多台... Orz
华为 E5770s-320
https://i.imgur.com/6fsZe0p.jpg
B1, B3, B5, B7, B8, B20, B38
华为 E5573s-806
https://i.imgur.com/3HHbMyX.jpg
B1, B3, B7, B8, B28
Netgear MR1100-1TLAUS (Telstra)(澳)
https://i.imgur.com/v97gy1g.jpg
B1, B3, B7, B8, B28
Netgear MR1100-100EUS (Europe Unlocked)(港/欧)
https://i.imgur.com/FR96ry6.jpg
B1, B3, B7, B8, B20, B28, B38, B40, B41
Netgear MR1100-100NAS (North America Unlocked)(北美)
https://i.imgur.com/IHtoU0O.jpg
B1, B2, B3, B4, B5, B7, B12, B20, B29, B30, B38, B40, B41, B46, B66
看起来北美版支援最多有的没的频段，但是若所在地有固定干扰源（例如说雷达），
支援那个干扰的频段但是没有 filter 未必是好事...