  The temperature dependence of electronic and magnetic properties of the
organic charge-transfer salt (DOEO)$_4$[HgBr$_4$]TCE was investigated using
magnetometry. Electronic transport properties revealed three distinct phases
which are related to different magnetic coupling phenomena. In the
low-temperature insulating phase (T<70 K) the antiferromagnetic coupling
between two distinct sites of magnetic moments causes antiferromagnetic order
below the N\'eel temperature T$_N$=40 K. In the temperature region 70-120 K the
(DOEO)$_4$[HgBr$_4$]TCE shows metallic-like behavior and with further
increasing of temperature it becomes a bad metal due to loss of itinerant
character and increase of hopping conductivity of charge carriers.
