Eletronic engineer guys- bluetooth ???

[JMPRO]

I would like to have 2 bluetooth ear pieces talk to each other without a cell phone. I need a wireless, short range easy to use way to communicate with my s/o while driving at 70 mph with the top down. I have looked at most of the walkie talkie type units available and nothing suits me, plus my wife won't wear any of those wired headset with a transmitter on her belt. The bluetooth unit is just a low powered walkie talkie so why is this not possible?
JMPRO

[Drew001]

Originally posted by JMPRO
...The bluetooth unit is just a low powered walkie talkie so why is this not possible?
JMPRO

Because bluetooth range is about 32 feet.
There are ways to increase that range, but it's really not worth it for your application.
Bluetooth can also be insecure depending on the devices that you are using and which security mode that they support (Security Mode 1: non-secure, Security Mode 2: service level enforced security, Security Mode 3: link level enforced security).

Why not simply get something like a pair of Morotola 2-way radios. They have muli-mile range, are cheap, secure and allow hands-free communication with the right accessories.

[JMPRO]

I don't need a long range, 32 foot is probably 25 foot too far. I don't need security, I don't care what someone may overhear. I don't want a wired, complicated system. This is why I centered on the bluetooth technology, simple, wireless and inexpensive.
JMPRO

[StevoRocket]

Bluetooth earpeices are made to talk to phones or computers - not each other - they don't have the ability to talk to each other. A motorcycle box with two wired earpieces and mikes is the only way - or you could shout.

[masraum]

Originally posted by JMPRO
I don't need a long range, 32 foot is probably 25 foot too far. I don't need security, I don't care what someone may overhear. I don't want a wired, complicated system. This is why I centered on the bluetooth technology, simple, wireless and inexpensive.
JMPRO

Unfortunately I just don't think it would be possible without you writing your own code to reprogram the things.

[drauz]

I am not positive, but bluetooth may not be FCC certified (ie legal) for application as a wireless voice intercom.

[stomachmonkey]

How you gonna pair them w/out an ability to enter an auth code? You'd need to reprogram both so they accept pairing without auth codes and then the things would automatically try to pair with anything that came within range including the BT phone that you probably have.

I guess you could try and lock them to each other but the amount of effort required for this is leaps and bounds beyond getting in the car and drivind to Radio Shack and picking up a pair of proper devices being sold by multiple vendors who have already developed, manufactured and distributed the solution to your problem.

And I'm sure they have already engineered in wind cancelling features.

You ever try to talk to someone on a BT headset while walking outside in a mild spring or fall breeze? They are useless. Gotta think that if your car is so loud at 70 that you and the wife can't converse BT headsets are not going to make it any better in fact they'll make it worse. I have a good quality Motorola headset and can't use it with the window cracked 4 inches much less the top down.

If you both have BT capable phones and BT headsets already and are with the same cell carrier then just call each other on the phones. All the majors have free in network calling these days.

Scott

[84porsche]

Why not get a microphone and wire it through your stereo. AV jack and she should be able to hear you and vice versa. Another suggestion would be a windscreen to reduce the wind noise. Probably one for the top of the windshield and another for the rear seats. I have a Targa and can hear at least the passenger at 80 mph with not many problems but we are not carrying on a long conversation usually.

[djmcmath]

I have a noise cancelling BT headset that works fine. I use it with the sunroof open with no problems, anyway. Here's another idea, if you're insistent on BT headsets: use the headsets as intended, to connect to the cell phones. Then call each other. Burns minutes? Expends batteries? Keeps you from calling other people? (shrug) True.

[JMPRO]

Thanks for all the input. It seems that this idea is perhaps not worth the trouble or is too soon for the technology.
I did get new hearing aids and that has helped some although hearing aids need a big leap in technology to correct the poor sound quality.
JMPRO

[svandamme]

Originally posted by drauz
I am not positive, but bluetooth may not be FCC certified (ie legal) for application as a wireless voice intercom.

bluetooth is certified as a transmission medium/protocol
FCC shouldn't care what you transmit and receive with it as long as you adhere to the Bluetooth standard, and i don't think the FCC would care...

in this case, the only difference would be software based... (if you could manage to reprogram a regular headset )

[drauz]

this looks like one...
http://www.alan-uk.com/alan/motorcycle/bluetooth-equipment.html

[stomachmonkey]

Originally posted by drauz
this looks like one...
http://www.alan-uk.com/alan/motorcycle/bluetooth-equipment.html

Seek and ye shall find.