Communication assembly with extendable antenna

An assembly comprising:

• a housing configured to be mounted on a vehicle;
• an extendable mast mechanically coupled to the housing and configured to extend and retract relative to the housing to control a position of a distal end of the mast;
• an antenna mechanically coupled to and supported by the mast;
• and
• a control circuit operably coupled to the mast and configured to generate a first signal to raise the mast from a first position of the distal end to a second position of the distal end in response to determining occurrence of a designated raise event, wherein the antenna extends a greater distance from the housing in the second position of the mast than in the first position,
• the control circuit configured to generate a second signal to lower the mast from the second position of the distal end to one or more of the first position or a third position of the distal end in response to determining occurrence of a designated lower event.