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Discussion Starter #1 (Edited)
Looking for feedback from anyone who may have tried this.

I want to carry my MP3 player and my VHF transceiver (I am an Amateur Radio Operator, and an EMS provider) in my tank bag, and connect them to one of those wireless FM wireless transmitters that you see available to transmit your MP3 player audio to your four wheel vehicle FM radio receiver. I would carry the remote FM receiver in my jacket pocket and run the headphones up into my Nolan N-42 helmet.

Any and all comment would be appreciated.

TNX,

Steve, KK1VT
 

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why not just put the MP3 player in your jacket and run the headphones directly from it? what is the need for the FM tranmitter??
Because he has two sound sources and only one set of ears. Feeding the music player to the radio receiver leaves you with one set of audio outputs.

If you have money to spend, consider one of the Autocom units, which let you do both, plus add a mobile phone.

Cheers -d
 

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Because he has two sound sources and only one set of ears. Feeding the music player to the radio receiver leaves you with one set of audio outputs.

If you have money to spend, consider one of the Autocom units, which let you do both, plus add a mobile phone.

Cheers -d
He should get another set of ears. :D

So the original poster is an EMS on a bike? How does this work?
 

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Discussion Starter #5
"So the original poster is an EMS on a bike? How does this work?"

I commute 125 miles per day most of which is on an interstate highway. On more than one occasion I have first responded to medical emergencies and accidents on my way to work. By having my VHF radio set in scan mode I can copy the EMS frequencies as I pass through the various communities. It will also allow me to listen to the NWS for up to the minute weather bulletins. I will build a switch box the change between the MP3 player and the VHF radio.
 

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I have been looking at trying to combine my gps and gmrs radio together on my headset. It is kind of what you are doing. I am planning on building a mixer that is small to combine the stereo output of the zumo and the mono output of the gmrs radio.

Below are the websites that I have found that are ways to build a mixer:

http://www.controlbooth.com/forums/sound/7738-d-i-y-passive-mixer-2.html

http://sound.westhost.com/project30.htm

http://www.tomshardware.com/forum/48750-6-stereo-headphone-mixer-battery-powered

http://www.nirvis.com/mixers.htm

http://www.engadget.com/2006/09/20/how-to-make-a-simple-sound-mixer/

http://www.tkk.fi/Misc/Electronics/circuits/linemixer.html


Hopefully some of this helped you. If I were you, I would build a mixer, or buy one, and plug that into the fm transmitter or whatever you have. The signals would be combined before they are sent to you.

Travis
 

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I would suggest the Autocom system (http://autocomamerica.com/). They have several models to choose from that will seamlessly combined pretty much any combination of sources that you could imagine. If you should be using them all at once is irrelevant, there are always things that we shouldn’t do that we do. I currently use it when working as a motoref (referee on the motorcycle during bike races) and I have the Zumo (with turn by turn for the course), phone (when the radio is out of range), MP3, 2 way radio (with a sweet PTT on the handlebar to talk to the rest of the crew) and the rider/passenger intercom. The unit fits nicely underneath the seat out of the way or in a tank bag.
<O:p</O:p
It is well worth the money for crystal clear audio with plenty of options to allow various inputs selections. <O:p></O:p>
<O:p> </O:p>
Cheers<O:p></O:p>
 

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Discussion Starter #10
Thanks to All

Being well grounded in electronics I will probably look at combining a mixer with a switch. I can watch the frequency scan on the VHF LCD and if it stops often enough on a particular frequency, I can switch off the MP3 player and tune in to the VHF radio.

Thanks,

Steve
Green Mountain Shooter and Commuter
 

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Hey Steve,

You can do FM wireless or Bluetooth, but a wired solution is a lot less trouble in the long run. I tried a long list of mixers and bluetooth and ended up with the Autocom. It just works and is easy to adapt as needs and equipment changes.

73, KA1TOX
 
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