On 9 Apr 2022 at 11:23:00 AM, sms <scharf...@geemail.com
> On 4/8/2022 3:25 PM, Wilf wrote:
>> On 08/04/2022 at 20:47, Woody wrote:
>>> On Fri 08/04/2022 20:22, gtr wrote:
>>>> Do these cellular amplifiers work when your cellular signal is low?
>>>> How low?
>>> US market so likely illegal in the UK.
>> In UK, Wifi Calling is a good option when signal is poor but there is
>> access to wifi.' Don't know if it is in use in USA.
> Yes, in the U.S. Wi-Fi calling can be used when signal quality is poor
> and Wi-Fi calling has largely eliminated the need for microcells, at
> least in homes.
Wi-Fi calling has its own problems depending on the carrier setup.
PC Magazine said T-Mobile has a "big problem" with Wi-Fi calling for example
where they said there were problems with pictures & group chats over Wi-Fi.
The most convenient booster for a car is the in-cradle type but they only
work while the phone is in the dashboard cradle & they're only 23 dB.
> The amplifiers are for a different use case, to get a cellular signal in
> weak signal areas where there is no access to broadband.
To boost weak cell signal, this is what PC Magazine said about the bands.
Most boosters handle bands 2/4/66, 5, 12, 13, and 17. That includes base
coverage bands for AT&T, T-Mobile, and Verizon. The important missing band
is 71, T-Mobile's 600MHz rural coverage band. Because it took a while for TV
stations to get out of that band, the FCC hasn't approved any consumer
boosters for band 71; you're just not going to find one.
While cellular boosters generally can't boost the "good parts" of 5G
networks. AT&T and Verizon carry a small amount of 5G signal on the old
cellular bands 2 and 5. Boosters handle that, so a booster may summon you a
5G icon, but that signal doesn't give you an experience that's different
from 4G. The fastest 5G networks for AT&T and Verizon are currently on bands
n77, n260, and n261, and those aren't supported by any consumer boosters. No
booster can handle any of T-Mobile's current 5G networks, which are on bands
n41 and n71.
There is a sneaky way around this. While there are no powered boosters for
these bands, passive antennas will still improve signal on bands 41 and 71.
They may only get you 10dB to 20dB of gain as opposed to 70dB, but that
isn't insignificant (and even just the fact that the antenna is outside will
help). Waveform's Griddy parabolic antenna and MIMO panel antennas improve
signal on the new 5G band n77. Connecting an outdoor cellular antenna to a
Wi-Fi hotspot that has a TS9 connector, such as the Netgear Nighthawk M5,
can turn an outdoor cell signal into an indoor Wi-Fi signal.