  Reconnection in strong current-aligned magnetic guide fields allows for the
excitation of the electron-cyclotron-maser instability and emission of
electromagnetic radiationfrom the electron exhaust at the {\sf X} point. The
electrons in the guide field remain magnetized, with reconnection barely
affected. The guide field is responsible for the asymmetric properties of the
{\sf X} point and exhaust. Asymmetry in the electron population results in
conditions favorable for ECMI. Fundamental mission beneath the guide field
cyclotron is similar to electron hole emission discussed elsewhere. It can be
treated in the proper exhaust frame, and maps the local magnetic field when
moving together with the exhaust along the guide field. Many applications of
this mechanism can be imagined. We propose an outline of the mechanism and
discuss some of its advantages and prospects. Among potential applications are
AKR in auroral physics, various types of solar radio emissions during flares,
planetary emissions and several astrophysical scenarios involving the presence
of strong fields and field-aligned currents. Escape of radiation from {\sf X}
is no problem. However, observation from remote requires traversing the
stop-band of X modes and implies source displacements to weaker fields.
