Below is a chart of the carrier frequencies for each channel in RF1 and RF2 mode. There are 2 frequencies in RF2 mode, because each channel has 2 carrier frequencies per channel. At the same time, each channel in RF1 mode has 4 carrier frequencies per channel.
Line 6 Wireless Modes RF2 & RF1
The new V75, 55 and 35 default to RF2 mode, but include the ability to be switched into RF1 mode. You cannot use RF2 mode in the pre