TEN-TEC EAGLE 599 vs. Kenwood TS-590
TRANSMITTER IMD PRODUCTS
Many potential buyers compare the Eagle to the TS-590, in an attempt to determine which radio to buy. This is a difficult decision because there are so many things one might compare.
Which of these things is important, or rather how important each of these things are, will vary from one use to another.
This page deals strictly with Transmitter IMD.
As this screen shot shows, the IMD of the transmitted white noise is reduced by 60dB at 5 kHz away from the transmit frequency. This is 2 kHz better than that of the Eagle.
If we consider the bandwidth of each transmitter to be the point at which the transmitted IMD is 60dB down, the Eagle is 4kHz broader than the TS-590.
Of course that would be 10 S-Units down, which means you probably wouldn't hear either signal any, due to noise and QRM. But the Kenwood is definitely better in this respect.
Note: The source of these screen shots is Rob Sherwood's 2011 BARC presentation. They are shown on slides #30 and #31. The full presentation is available here: 2011 BARC Presentation.