Power: The transmitted RF output power level in the range 0 to 50. See the table below for what each level
produces in approximate RF output and current draw. A lower power level may be easier for hunters without
receiver attenuators. Higher power will result in less total battery runtime. At the highest power (50) and full
duty cycle, the 650mAh battery should last over 8 hours.
Send Battery: When set to 1, the MF-50 will send the battery voltage in morse code before the Morse
Message. Set to 0 to disable.
LED
The blue LED shows the stage of the transmitter. When first powered up, it will flash quickly for 2 seconds
while checking for bootloader entry. Then it will flash 3 times as it starts the MF-50 firmware. It will be on solid
then transmitting, and off when off the air.
Battery
The internal 650mAh LiPo battery will power the MF-50 for 8 - 50 hours, depending on duty cycle and power
output. It is charged by connecting the micro USB cable to a 5V supply. The red LED near the USB jack will
be lit when charging, and the green LED lit when fully charged. The MF-50 will also operate from a USB power
source when connected via the Micro-USB cable.
Bootloader
The MF-50 includes a bootloader to facilitate updating the firmware as new features are developed. To update
the firmware via a terminal program, connect as adjusting settings above, cycle power on the MF-50 and when
the ? appears, press the b key. If the MF-50 returns “M328P BL v1.0” or similar, it is in the bootloader mode.
Press the s key, wait for it to respond with “|”, then upload or paste the text of the new MF-50 firmware file from
the byonics.com website. It will respond with a series of periods(.) then an asterisk (*) if successful. Cycle
power to run the new code. If it responds with an exclamation point (!), there was a problem, so try the full
process again.
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