User Manual

Appendix A Technical Specifications
RFI-9256 Radio Modem User Manual Page 55 of 96
 Revision : The revisions reflect bug fixes or minor changes that don’t render the system
incompatible.
 Country : Firmware with versions with different country identifiers, are always incompatible with
their air interface. This is due to the frequencies and hopping sequences that they use. Each
country has its own spectrum allocation and laws governing radio spectrum usage.
An example version number string is shown in Figure 24.
Figure 24: Example firmware version number
Firmware revisions with major version number 1 will be compatible with this hardware build, while
firmware revisions with major version number 1 and minor version number 10 will be compatible over the
air with this build.