Intercom

I think he wants to "roll his own" so that he can control the system properties. He might fine this page useful:

Lots of vendors. Well maybe when the page was new.

?-)

The beauty of the wireless phones is that Jim can connect everything up and test the concept for almost no money. A live test in his environment will reveal weaknesses that he can address in his real application 'way faster than he could possibly do otherwise.

--Winston

No, it is a marketing thing. If I've got something to sell that nobody else makes I've got a captive market.

Jim

Yes, tons of DECT phones out there and a few chipset suppliers, but no hard design data that I've been able to dig out.

THanks,

Jim

NOW we are getting somewhere. Lots of dead links, as you said, but the few that are still hot are probably going to get me to where I want to go.

Thanks!!

Jim

Either (2) or (3) would probably work, but (2) is what I'll probably wind up with because I have the technology to do that quite easily.

Thanks,

Jim

OK now i will cop to my ulterior motive. If you make them maybe you = could sell me a set (at discount) for a different purpose (motorcycle).

I design such systems. If you are looking for solution, my contact is at the web site in the signature.

Vladimir Vassilevsky DSP and Mixed Signal Design Consultant

I'll do it with one major caveat. Remember Heathkit? We do Heathkit for airplanes. You get a bag of parts and detailed instructions. AND you get to figure out how to make your headset mimic an aircraft headset. It isn't at all obvious how to do that.

Thanks,

Jim

Learnin' how to do it yourself is half the fun of engineering. It is just finding the information that is turning out to be a pain. Seems like everybody thinks we don't need data sheets or app notes to figure this stuff out.

Thanks,

Jim

could

Heathkit i can do. I started with Knight-Kit (some 50 years ago) which was similar. Do you remember them?

?-))

Knight-Kit T-150 was my first commercial amateur transmitter (I had already home-brewed half a dozen of them) and a Layfayette 6 meter receiver kit was my first commercial amateur receiver.

Jim

Ah the good old days. There was a surplus house in Mountain View where i could get 741s for 50 cents to $1. And Olson electronics and a = Layfayette store. Will call at Newark electronics.

:-)))

Do these have to be wireless? Just provide a jack at each seat and let everyone plug in. Provide a toggle switch at each location to switch from the entertainment channel to intercom.

(...)

Haltek! Heaven!

Santa Clara on the ECR! Who could forget Olson!

I don't remember a Lafayette store in the Gulch.

Remember the Heathkit store in Palo Alto?

--Winston

The was a Lafayette Store in Scollay Squa-a-a-are in Boston, right in the middle of the red light district and burlesque houses ;-) ...Jim Thompson

Scollay Square is on Beacon St. a hundred feet or so from the state house, and about a thousand feet from the old red light district. The red light district used to be called the combat zone, but I don't think there's much left of it...

Probably not. I'm talking from experiences 50-54 years ago when I was a student at MIT ;-) ...Jim Thompson

Burstein Applebee fer sure.