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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.
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- Reduces dropped calls and static noise
- Stabilize and Enhances your cell phone reception
- Gain up to 3DB in signal
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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
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