 Well, I don't know if you've read on my website. I actually did a comparison several years ago called the AM Transmitter Challenge. On HobbyBroadcaster.net. The top transmitter was one made by Hamilton called the Rangemaster. That's a very high-end transmitter. In fact, it's probably the most expensive transmitter, but it's a very efficient transmitter for the type of constraints you're dealing with with the limited antenna and ground lead. So you actually get a better field strength output with that because of the engineering involved.