#1,755 in Smartphones and accessories
Use arrows to jump to the previous/next product

Reddit mentions of Cell Phone Antenna - External Passive Repeater Antenna

Sentiment score: 2
Reddit mentions: 2

We found 2 Reddit mentions of Cell Phone Antenna - External Passive Repeater Antenna. Here are the top ones.

Cell Phone Antenna - External Passive Repeater Antenna
Buying options
View on Amazon.com
or
    Features:
  • Reduces dropped calls and static noise
  • Stabilize and Enhances your cell phone reception
  • Gain up to 3DB in signal
Specs:

idea-bulb Interested in what Redditors like? Check out our Shuffle feature

Shuffle: random products popular on Reddit

Found 2 comments on Cell Phone Antenna - External Passive Repeater Antenna:

u/dne314 ยท 3 pointsr/whatisthisthing

Haven't seen one quite like that, but reminds me of a passive through window cell antenna, like this:

https://www.amazon.com/Cell-Phone-Antenna-External-Repeater/dp/B0053WE8VM

u/TEMintheair ยท 2 pointsr/EngineeringStudents

Well yeah something like this, which is pretty much a monopole - coax - dipole setup: https://www.amazon.com/Cell-Phone-Antenna-External-Repeater/dp/B0053WE8VM
The car does to some degree act as a Faraday cage, so the monopole is placed outside, transmitting the incident waves through the the coaxial cable to the dipole on the inside, which emits the electromagnetic waves for the phone to sense. It of course also works the other way around, with the phone transmitting.
Again, you don't see the passive models very often, as they just aren't that good.

Edit: I just noticed there isn't a coax connecting the two antennas! They must rely on some coupling instead, which I can't imagine working very well