As more and more enterprise applications expand to cover handheld wireless platforms, smart phones and radio-enabled PDAs are becoming critical pieces of enterprise infrastructure. Powerful as they have become, they are at the mercy of a usable signal from a cell tower. That reliance can lead to the fascinating sight of executives wandering halls and cubicles, raising and lowering their phones while they count the number of bars in the display.

The Bottom Line Spotwave Z1900 Spotwave, spotwave.com Very Good  8.2 criteria score weight Performance 9 30% Interoperability 9 20% Scalability 8 20% Setup 7 20% Value 7 10% Cost: $299 Platforms: Spotware reports hardware is intended for T-Mobile or Sprint phones, but testing suggests that it is carrier-agnostic Bottom Line: The Spotwave Z1900 is an effective cell-phone repeater that boosts signals in the 1900MHz band from marginal to superb. Surveying your site for the best reception point is the hardest part of installation: If you can't find somewhere on your premises with at least a bar or two of signal strength, then the Z1900 isn't going to be able to help you. About our Reviews and Scoring Methodology

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Boosting reception is not as simple as increasing the altitude of the phone’s antenna; metal, concrete, and other construction materials create pockets of good and bad reception throughout a building. It would be so much simpler if the cell tower was in the room, though perhaps not very practical. That’s the concept behind the SpotwaveZ1900 cell phone signal booster. The Z1900 competes with products from Wilson Cellular, Cellphone-Mate, and other companies, though I haven't had an opportunity to test any of these.

At a very important level, the Spotwave Z1900 is simplicity itself. It comprises two main components: an antenna/receiver NAU (network access unit), and a transmitter CU (coverage unit), connected by a 35-foot cable. The basic idea is this: You put the NAU in the location that gets the best cell reception and the CU in the location where most people want to use their phone.

There isn’t any management to be done, so no fancy administrative consoles or Java applications to host on a remote system. The work of putting the Z1900 in service is all up front, and the vast majority of that work is in the form of the site survey to determine the best location for the NAU.

It would be nice if Spotwave provided a tool of some kind to assist in determining the best place for the NAU. There are, however, plenty of solutions out there to help in that task. It’s tempting to think that simply putting the antenna unit in the highest possible location is the best course of action, but it’s not nearly that simple. You may find better reception at desk level in one corner of the office than near the ceiling in another corner.

I conducted my survey using a fistful of smart phones. I found that the five-bar strength meter ubiquitous to the industry provided enough detail to be useful in deciding on a location for the unit.

As an aside, allow me to urge you to exercise some creativity as you’re conducting the survey. The occasional grand jetéor plié thrown into the mix might not make the survey any more accurate, but they will entertain the dickens out of your co-workers. At least, they seemed to entertain mine.