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VHF和UHF跳频设备在频谱不拥挤的情况下,能以相当高的数据率工作。而HF跳频设备的设计要受到各种不同的限制,包括电离层的突然变化。本文作者为雷卡(Racal)战术通信系统公司的技术董事。文章内容反映了该公司在开发Jaguar系列的ECCM电台过程中的工作成果。
VHF and UHF frequency hopping devices operate at fairly high data rates without spectral crowding. The design of HF hopping devices is subject to a variety of different constraints, including sudden changes in the ionosphere. The writer is technical director of Racal’s tactical communications systems company. The article reflects the company’s work in developing the Jaguar series of ECCM radios.