Radio frequency signal transmitting device of ultrashort wave frequency hopping radio station
The utility model relates to the technical field of channel transmitters, in particular to a radio frequency signal transmitting device of an ultrashort wave frequency hopping radio station, which comprises a temperature compensated crystal oscillator, a DDS (Direct Digital Synthesizer) chip, an FPG...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to the technical field of channel transmitters, in particular to a radio frequency signal transmitting device of an ultrashort wave frequency hopping radio station, which comprises a temperature compensated crystal oscillator, a DDS (Direct Digital Synthesizer) chip, an FPGA (Field Programmable Gate Array) chip, a controllable attenuator, a radio frequency processing circuit and a power amplifier filter circuit. According to the utility model, the amplitude of the radio frequency signal is stably controlled within a reasonable range, the consistency of the output amplitude of the radio frequency signal is ensured, the flatness of the output power of the whole machine is also ensured, and the problem that the power of a radio station is uncontrollable when the radio station works in a frequency hopping mode is solved.
本实用新型涉及信道发射机技术领域,具体涉及一种超短波跳频电台的射频信号发送装置,包括温补晶体振荡器、DDS芯片、FPGA芯片、可控衰减器、射频处理电路和功放滤波电路。本实用新型将射频信号幅度稳定地控制在一个合理的范围内,保证了射频信号输出幅度的一致性,也保证了整机输出功率的平坦性,解决了电台在跳频模式工作时功率不可控的问题。 |
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