FM Transmitter Option for Elk M1G

[KB4OB]

:horse: I have the Elk M1G wireless receiver paired up with two GE Keyfobs.
The system hardware and software is programmed to open the garage door with the Keyfobs but I need some means of providing positive feedback for actual status of the alarm system when in car.
It occurred to me that it would be fairly simple to develop, (or jury rig) a FM transmitter that could be activated by auxiliary contacts when the keyfob opens the garage door. The transmitter could be modulated by the Elk M1G speaker output and would us an empty frequency on the FM Radio Band.
This would essentially provide any ELK voice alerts over your auto,s radio with limited range and could be programmed to stay on for shrt period of time.

Does anyone know if a device such as this already exists or has any one jury rigged one already?

 

[Digger]

:horse: I have the Elk M1G wireless receiver paired up with two GE Keyfobs.
The system hardware and software is programmed to open the garage door with the Keyfobs but I need some means of providing positive feedback for actual status of the alarm system when in car.
It occurred to me that it would be fairly simple to develop, (or jury rig) a FM transmitter that could be activated by auxiliary contacts when the keyfob opens the garage door. The transmitter could be modulated by the Elk M1G speaker output and would us an empty frequency on the FM Radio Band.
This would essentially provide any ELK voice alerts over your auto,s radio with limited range and could be programmed to stay on for shrt period of time.

Does anyone know if a device such as this already exists or has any one jury rigged one already?

Did you check out Ramsey Electronics? They have some low power FM radio kits etc you might be able to adapt.

 

[gatchel]

You also might be able to modify a Belkin RF modulator or an XM radio style modulator.
They are 12vdc and could be powered using an elk relay to switch it on and off.

I believe Spanky (or someone else from Elk) posted how to convert the elk output to a line level signal using about $0.50 worth of components. Try searching it in the elk forum.

 

[tmbrown97]

I believe Spanky (or someone else from Elk) posted how to convert the elk output to a line level signal using about $0.50 worth of components. Try searching it in the elk forum.

http://www.elkproducts.com/support/images/...evel_Output.gif

From the elk web-site. Adapt that to any cheap radio-shack fm modulator meant to plug into the cig lighter (12V). Should work just fine.

Another option - some totally inconspicuous LED's above the garage door or something along those lines. For me, I just use eK+ from the iphone as I drive away but that may not be an option.