The only really accurate watt meter, which won't help us totals at all, is the Byrd. This is especially true at vhf/uhf frequencies. The Wave Node system may come close to the Byrd, but I don't know the specs on it. The RF Applications meter with the CW output isn't too bad, but it too is not a Byrd meter. The indication provided by all other watt meters, accessible or otherwise, should be viewed as relative. While this may be a bit disappointing, remember that a relative reading can also tell you when you are having trouble such as Tom recently experienced with his 590. As for the readings from the meter inside the radio, this meter is reading on the radio side of the tuner. Any external meter, when used along with an antenna tuner that is internal to the radio, is reading the natural SWR of the antenna, and the power after the insertion loss of the tuner. Mike Duke, K5XU American Council of Blind Radio Amateurs