Rajant Corporation
03-100137-011
BreadCrumb® JR2 v11 User Guide
Version 11.4.0
27
2.4 GHz channels support HT40 mode. In this mode, the radio binds two standard 20 MHz channels to
obtain a wider bandwidth 40 MHz channel. The + or - designation describes if the second channel is
above or below the base channel. Plus (+) indicates that the additional 20 MHz occurs above (at a
higher frequency than) the first 20 MHz while minus (-) indicates that the additional 20 MHz occurs
below (at a lower frequency than) the first 20 MHz. Note, the frequency noted is the center frequency of
the base 20 MHz channel. This is different from 802.11a turbo mode where the frequency was the
center of a single 40 MHz wide channel. HT40 operation (+ or -) is compatible with 802.11a 20 MHz
and 802.11n HT20 modes. HT40 operation is NOT compatible with 802.11a turbo mode.