Costs much less than comparable manufacture's interface
units.
converts your radio's TTL control signals to RS-232 computer
level.
Changing radios requires only the replacement of the inexpensive
control cable, not the replacement of the entire interface unit. Replacement
of these interface units can be very costly!
No additional power supply voltage is required if supported
by your computer serial port voltage, if not, a power jack has been provided
on the unit.
Small size and light weight.
Visible LED's monitor the "control" commands from both
the computer and the radio. (This is a very important feature).
