An antenna assembly for providing high frequency radio communication in two different operating modes, said antenna assembly comprising: a whip antenna; and at least two antenna wire segments (118, 120); characterized in that said antenna assembly further comprises: an HF transceiver, coupled to said whip antenna and further coupled to each of said antenna wire segments (118, 120), said HF transceiver configured to receive a selection of an operating mode of said antenna assembly, and configured to selectively transmit and receive HF radio frequency signals through said whip antenna or through said antenna wire segments (118, 120), wherein in a first operating mode of said antenna assembly, said antenna wire segments (118, 120) are configured to be non-radiating, while said whip antenna is configured as a radiating element for establishing short range HF radio communication with a communication target, via ground wave or low-efficiency skywave propagation, allowing communication when said antenna assembly is in motion; and wherein in a second operating mode of said antenna assembly, said antenna wire segments (118, 120) are configured to be deployed as radiating elements to form an inverted-V antenna with said whip antenna configured as a non-radiating center mast, said inverted-V antenna operative to establish short or medium range HF radio communication with a communication target, via Near Vertical Incidence Skywave (NVIS) or directional skywave propagation, allowing communication when said antenna assembly is stationary. a whip antenna; and at least two antenna wire segments (118, 120); characterized in that said antenna assembly further comprises: an HF transceiver, coupled to said whip antenna and further coupled to each of said antenna wire segments (118, 120), said HF transceiver configured to receive a selection of an operating mode of said antenna assembly, and configured to selectively transmit and receive HF radio frequency signals through said whip antenna or through said antenna wire segments (118, 120), wherein in a first operating mode of said antenna assembly, said antenna wire segments (118, 120) are configured to be non-radiating, while said whip antenna is configured as a radiating element for establishing short range HF radio communication with a communication target, via ground wave or low-efficiency skywave propagation, allowing communication when said antenna assembly is in motion; and wherein in a second operating mode of said antenna assembly, said antenna wire segments (118, 120) are configured to be deployed as radiating elements to form an inverted-V antenna with said whip antenna configured as a non-radiating center mast, said inverted-V antenna operative to establish short or medium range HF radio communication with a communication target, via Near Vertical Incidence Skywave (NVIS) or directional skywave propagation, allowing communication when said antenna assembly is stationary. an HF transceiver, coupled to said whip antenna and further coupled to each of said antenna wire segments (118, 120), said HF transceiver configured to receive a selection of an operating mode of said antenna assembly, and configured to selectively transmit and receive HF radio frequency signals through said whip antenna or through said antenna wire segments (118, 120), wherein in a first operating mode of said antenna assembly, said antenna wire segments (118, 120) are configured to be non-radiating, while said whip antenna is configured as a radiating element for establishing short range HF radio communication with a communication target, via ground wave or low-efficiency skywave propagation, allowing communication when said antenna assembly is in motion; and wherein in a second operating mode of said antenna assembly, said antenna wire segments (118, 120) are configured to be deployed as radiating elements to form an inverted-V antenna with said whip antenna configured as a non-radiating center mast, said inverted-V antenna operative to establish short or medium range HF radio communication with a communication target, via Near Vertical Incidence Skywave (NVIS) or directional skywave propagation, allowing communication when said antenna assembly is stationary.