High frequency over --horizon radar clock source produces circuit

The utility model discloses a high frequency over - -horizon radar clock source produces circuit includes in proper order that crystal oscillator, a low -noise amplifier, central frequency are f1's first narrowband band pass filter, the 2nd low -noise amplifier, a power distribution unit, later are divided into two the tunnel: the clock signal 1 branch road includes in proper order that central frequency is f1's second narrowband band pass filter, the controllable amplifier circuit of first gain and the first clock drive circuit, the clock signal 2 branch road includes in proper order that the 3rd low -noise amplifier, central frequency are f2's narrowband band pass filter, the second controllable amplifier circuit of gain and the 2nd clock driver circuit, still include control circuit, the controllable amplifier circuit of first gain, the controllable amplifier circuit of second gain, the first clock drive circuit and second clock drive circuit all are connected with control circuit. The utility model disclo