Looking for wireless

I don't think you can guarantee that your signal is never going to be affected by an outside source. The best thing you can do is use a (legally) strong signal and run tri-tones (or some other form of coding) on top of it, which you equipment identify as instructions.

Sorry, wish I knew more.

For a cheap solution you might try adapting the remote central locking scheme used by cars: I've never heard of problems with false activation.

No need to adapt! They already exist. Here's one that I've used for turning my dust collector on/off from around the shop:

REMOTE SW.FOR D/COLLECTORS110V 15AMP

Banner Wireless I/O

Try BWI Eagle. http://www.bwieagle.com/index.htm

We use their products and are very happy with the performance. Talk to Kathy Boehmig:

Kathy Boehmig
Sales Manager
BWI Eagle, Inc.
724-283-4681
www.bwieagle.com

kathyb@bwieagle.com

Paul.

I have always had luck with Remote Control Technology. They seem to know what is going on and have been able to help me find the answers I need.

here is their website www.remotecontroltech.com

You may want to check out www.x10.com to see if anything they have might work. Check thier home automation section for wireless control switches.

JasBond,

That's a real cool and nice tag-line you got there. Cudos!

You did not say if your momentary switch is normally on or normally off, or if it is a bi-modal toggle: push on, push off. OK, toggle would not really be momentary.

Others have posted good thoughts. Mainly, these would be Radio transmitters (RF). I believe there are also ultrasonic whistle switches that might work in your application.

"The Clapper" is out, since it works on AC and is a toggle switch anyway (Clap on, Clap off).

Infrared (IR) might be a good alternative if you have a direct view at all times of a spot where you could place the reciever.

If you are in the USA check your local RadioShack for simple kits (you might get lucky and actually find someone who DOES have answers!). If you are in a larger city, there may be an industrial or surplus electronics store that also carries something that would work for you.

I have used some 567 Tone Decoders to sense the presence of tones to control various events using just the power lines as the tone carriers. It is possible to use a single tone for each function or a pair, using one tone as the base and the other as the modifier and some logic to provide the occurrence of the coincidence event. You would have to provide the same frequency tone generators, within tolerances and connect them to the power line using capacitors. It might be necessary to change the logic of the commands so the power isn't shorted out by switches. Since they can't carry large loads, it would be necessary to use some relaying at the far end. There are (or were) handbooks that describe the use of these devices. They are called "Phase Locked Loops", as I recall. I believe the same 567 decoders can be used as tone generators.