User's Manual

pulsAR radio Operator’s Manual
3-10
specifies the minimum distance that must be maintained between the antenna and any areas where
persons may have access, including rooftop walkways, sidewalks, as well as through windows and
other RF-transparent areas behind which persons may be located.
900 MHz - Minimum Distance calculation to
avoid Antenna Radiation Hazard (exposure of 0.610 mW/cm
2
)
Antenna Gain (dBi): 5 15
Max. Output Power
27 19
MPE safe distance (cm)
20 20
2.4 GHz - Minimum Distance calculation to
avoid Antenna Radiation Hazard (exposure of 1 mW/cm
2
)
Antenna Gain (dBi): 9 24
Max. Output Power
27 24
MPE safe distance (cm)
25 25
*NOTE: For fixed location transmitters, the minimum separation
distance is 2 m, even if calculations indicate a lower MPE distance. For
mobile transmitters the minimum is 20 or 25 cm (shown on the tables)
3.3 Upgrading the Firmware.
3.3.1 Description
The operational firmware for the pulsAR radio is stored in Flash PROM and can be easily updated.
The Flash PROM can hold multiple versions of the firmware simultaneously. The table below lists
some of the “File Utility” commands used to download and manage the various files stored in Flash
PROM. A more detailed explanation for each command can be found in section 4.
File Utility command summary
Command Description
directory Lists all files stored in Flash PROM
delete-file filename Deletes the specified file from the directory
download-file path/filename
Downloads the specified file from the PC path/filename
into the Flash PROM
set-default-program filename
Sets the indicated filename as the default program to run
after power up
run-file filename loads the indicated program into RAM and executes it.