# Bluetooth technology **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [July 16, 2008, 2:04pm UTC](https://community.cartalk.com/t/bluetooth-technology/16784 "2008-07-16T14:04:07Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![duckgirl](https://avatars.discourse-cdn.com/v4/letter/d/6a8cbe/32.png) [@duckgirl](https://community.cartalk.com/u/duckgirl)\ **Post date:** [July 16, 2008, 2:04pm UTC](https://community.cartalk.com/t/bluetooth-technology/16784/1 "2008-07-16T14:04:07Z")
My husband just recently bought a new car without bluetooth, but with Sirius radio. It cuts out when you go under a large bridge and a couple other places. Will the cell phone that uses the bluetooth in the car also cut out? Im looking for a new car with bluetooth so I can have my hands free for the rare call I get. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [July 16, 2008, 2:13pm UTC](https://community.cartalk.com/t/bluetooth-technology/16784/2 "2008-07-16T14:13:47Z")
The cellphone is merely taking the signal that it receives from the closest cell tower, and is transmitting it a few feet to your Bluetooth device. An underpass or a bridge will not affect the Bluetooth signal. If your cell phone can receive a signal, it can transmit it to the Bluetooth device. ---
**Author:** ![lion9car](https://avatars.discourse-cdn.com/v4/letter/l/59ef9b/32.png) [@lion9car](https://community.cartalk.com/u/lion9car)\ **Post date:** [July 16, 2008, 2:15pm UTC](https://community.cartalk.com/t/bluetooth-technology/16784/3 "2008-07-16T14:15:38Z")
I guess you don’t understand what a hands-free Bluetooth system is. It has nothing to do with the connection between your cellphone and the towers; it’s just using your car’s equipment for the speaker and microphone. If your cellphone doesn’t cut out today, it won’t cut out in the new car. ---
**Author:** ![MikeInNH](https://avatars.discourse-cdn.com/v4/letter/m/a587f6/32.png) [@MikeInNH](https://community.cartalk.com/u/MikeInNH)\ **Post date:** [July 16, 2008, 2:38pm UTC](https://community.cartalk.com/t/bluetooth-technology/16784/4 "2008-07-16T14:38:51Z")
Bluetooth is only the communication protocol between the cell phone and your cars equipment. It is NOT the communication between the cell and the cell tower. ---
**Author:** ![Jeremy\_R\_Hoyt](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/jeremy_r_hoyt/32/37_2.png) [@Jeremy\_R\_Hoyt](https://community.cartalk.com/u/Jeremy_R_Hoyt)\ **Post date:** [July 16, 2008, 7:37pm UTC](https://community.cartalk.com/t/bluetooth-technology/16784/5 "2008-07-16T19:37:24Z")
The satellite radio cuts out because the bridge blocks the satellite’s signal from reaching the car’s satellite radio antenna. Cell phones and wireless bluetooth headsets don’t communicate directly with satellites.