I need to be able to communicate from Baseball field press box to both baseball Dugouts. This is for safety announcements only. There is Solid Concrete in between. I need some type of wireless intercom system. Wireless antenna mounted and powered at pressbox and 2 antennas mounted on dugouts? Dugouts have power as well as press box. Press box hears about tornado on its way, Needs to communicate to both dugouts like an intercom or phone. Must be wireless.

Thoughts?

One-way, or two-way? If one-way, Wireless mic and two receivers feeding a small amp and speaker would work.

Aphone intercom would work

Let's back up a second. This is for safety announcements. I hope I'm not going overboard there in tornado country by saying life and limb are at risk if the announcements don't go through.

That removes anything line powered without battery backup, as tornados don't always come from downstream, electrically speaking.

The signal must get through, so radio interference might cost somebody their life... and that leaves wire. Solid Concrete requires Strong Conduit, probably horribly expensive until you do a cost/benefit analysis on lives lost because an announcement didn't make it through because of either power failure or RF failure.

On the other hand, the kind of radios that fire and police use have pretty good records for getting through!

So... why do you call it an intercom?

Siren/PA on top of the press box? =) Crowd communication is separate I assume?

The wireless life safety thing is tough. For a parking structure or something, I'd say wireless mics and receivers w/ amps that auto sense, and monthly tests. Probably good for years as long as the receivers stay cool and are on good conditioned, battery backed up power.

I also seem to remember boxes back in the day that would extend a phone jack over powerlines, used for directv. Maybe something like that and some red phones on the wall?

2 way


Because it is 2 way


This is an option.

Here is what I was thinking
[Link: grainger.com]

these need to be line of site with base station. Base station to sit in glass window of press box, then mount gate access intercom inside dugout, extend antenna of intercom box to be mounted outside of dugout so that they are line of site with base station. The question is, what would be required to extend antenna of wireless gate intercom.

What about doing it with phone parts? Something like doorkings, using a wireless phone system or extender (or even a phone over powerline adapter like this maybe).

I bet Clear Com or Telex make gear that would work for you in this situation. 

and a PA doesnt perform the necessary task why?

You need 2-way with the coaches in an "saftey situation" because the coach may have a reason why there really isnt a problem after all and its totally OK to keep playing?

Oh, I got it. In the event of a bear attack, you wouldnt want everyone running around like crazy! being able to quietly tell the coaches there is a bear coming to eat people gives them time to quietly slip the star players to saftey?

As of today, you and Steve Kovacs have pissed off Impaqt. That's quite a feat!

You might have success finding what you want if you google "intercom," switch to Images, then go to the websites where the images come from.  But with the exception of the thing on the gate, you don't seem to be asking for an intercom.

You say you call it an intercom because it's two way. My old land line phone is two-way, my cell phone is two-way, old 37 mHz cordless phones are two-way, so is David Bowie, but none of those are intercoms. And all of those except DB are duplex, meaning that both people can talk at the same time and be heard by the other.  That is, no "Roger, over" kind of stuff is required to ensure that both parties hear all that is said by the other.

An intercom is a communication device that, at its most basic, allows intercommunication between two locations, but most intercoms are simplex, meaning that when one is talking he cannot hear a signal from the other person.  Does this suffice?

Images from a google search of "intercom" show the vast majority of them to be wall boxes or desk boxes, not hand-helds.

I'm just sayin.'

I've got a customer that has these in his house

[Link: dakotaalert.com]

I noticed he had the base station and a couple walkies around the house. The house is located on a long private road. we heard an announcement from the base unit "sensor 1" followed later by "sensor 2". The cleaning lady showed up in about two minutes after the second alert. When I left we looked for the wireless motion sensors and found they were very long distances from the house, with lots of rock and mountains between the house and the motion sensors.

These may offer a reliable and affordable solution.

Just buy 3 burner phones.

If cell network goes down, crowds going to know and panic pretty quick anyways.

Rob, lol. That's what I was thinking:

Call someones cell phone in the dugout.

Not if the cell system goes down.

nah, this one isnt pissing me off. just very confused as to why someone would think they need something like this.

I sure hope this doesn't piss anybody off. That would make for a bad day. I have no idea why when they say they need this for safety that the PA system wont work sufficient for announcements. All I know is that they asked for a fixed (mounted), wireless, solution to communicate to the dugouts from the press box.They say it is for safetey reasons. It may very well be to give scouting reports, steal signs from the other team or save the lives of the star players from a bear attack. Yes I have used the internet to try and track down a solution, and to be honest, I could care less what they use it for. Sorry for using the word intercom. I hope we can get past that mistake.

How about a fixed, wall mounted, wireless solution that the press box can communicate to each dugout. One that would most likely not be damaged or stolen like a cb radio solution. I made the assumption that an intercom system would work best.