A foot assembly for mounting an antenna, the foot assembly comprising: a foot comprising: a base configured to be attached to a mounting structure; a first sidewall flange extending from the base and terminating at a first distal section; a first slot formed within the first distal section; a second sidewall flange extending from the base and terminating at a second distal section, the second sidewall flange opposing the first sidewall flange; wherein the first sidewall flange and the second sidewall flange are spaced apart to accommodate the proximal end of an antenna mast therebetween; and a second slot formed within the second distal section, the second slot opposing and aligned with the first slot; a first positioning component extending between the first sidewall flange and the second sidewall flange, the first positioning component being slidably adjustable within the first slot and the second slot, and being lockable, wherein the first positioning component is held in position within the first slot and the second slot, and a second positioning component extending between the first sidewall flange and the second sidewall flange, the second positioning component being slidably adjustable within the first slot and the second slot, and being lockable, wherein the second positioning component is held in position within the first slot and the second slot; and wherein the first positioning component and the second positioning component provide a respective first and second support structure for an antenna mast, and are configured to flank the proximal end of the antenna mast when the proximal end of the antenna mast is received in the foot assembly between the first and second side wall flange, the first positioning component and the second positioning component are slidably adjustable relative to each other to define a mast adjustment distance therebetween which influences the mounting angle of the antenna mast relative to the base of the foot; and an adjustment assembly coupled to the first positioning component and the second positioning component, the adjustment assembly configured to adjust spacing between the first positioning component and the second positioning component. a base configured to be attached to a mounting structure; a first sidewall flange extending from the base and terminating at a first distal section; a first slot formed within the first distal section; a second sidewall flange extending from the base and terminating at a second distal section, the second sidewall flange opposing the first sidewall flange; wherein the first sidewall flange and the second sidewall flange are spaced apart to accommodate the proximal end of an antenna mast therebetween; and a second slot formed within the second distal section, the second slot opposing and aligned with the first slot; a first positioning component extending between the first sidewall flange and the second sidewall flange, the first positioning component being slidably adjustable within the first slot and the second slot, and being lockable, wherein the first positioning component is held in position within the first slot and the second slot, and a second positioning component extending between the first sidewall flange and the second sidewall flange, the second positioning component being slidably adjustable within the first slot and the second slot, and being lockable, wherein the second positioning component is held in position within the first slot and the second slot; and wherein the first positioning component and the second positioning component provide a respective first and second support structure for an antenna mast, and are configured to flank the proximal end of the antenna mast when the proximal end of the antenna mast is received in the foot assembly between the first and second side wall flange, the first positioning component and the second positioning component are slidably adjustable relative to each other to define a mast adjustment distance therebetween which influences the mounting angle of the antenna mast relative to the base of the foot; and an adjustment assembly coupled to the first positioning component and the second positioning component, the adjustment assembly configured to adjust spacing between the first positioning component and the second positioning component.