From: Dan Ritter <d...@randomstring.org>
Date: Mon, 9 Oct 2017 15:57:17 -0400
> The relevant details here are the LTE channels that the router's
> radio can tune:
>
> 4G: FDD-LTE Cat4 (800/900/1800/2100/2600MHz)
> TDD-LTE (2300/2600MHz)
> 3G: DC-HSPA+/HSPA+/HSPA/UMTS (900/2100MHz)
> 2G: EDGE/GPRS/GSM (850/900/1800/1900MHz)
>
> and how that matches up in Tanzania:
>
> 900 1800 3G 2100 Airtel Tanzania; 3G 2100 Tigo; 3G
> 2100 Vodacom; 4G LTE Smile Tanzania - Vodacom 800Mhz; 4G LTE
> Tigo ; 4G LTE Smart Telecom; 4G LTE TTCL ; 4G LTE Zantel in
> Zanzibar ;
>
> So, yes, it looks like you can buy a SIM and get LTE with this
> router in Tanzania.
>
> There are various places where the radio frequencies won't
> match up; hopefully you aren't going to those.
Thanks Dan. My friends now have the TP-Link MR200 working
at their school in Tanzania.
Seems the data measured by the carrier is larger than the data
estimated by the users. The accounting by the carrier might be double
that estimated by the users. They were told or read that the carrier
charges for transmission between router & client machine as well as
between router and cell tower. That could explain a factor of two
but to me this seems irrational. The carrier shouldn't be concerned
with transmission within the LAN. The only explanation I can imagine
is that activity within the LAN causes delays in rounter operation,
which cause delays in communication between router and cell tower,
which degrades efficiency..
Has anyone encountered a question such as this?
Thanks, ... Peter E.
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