Shortwave broadcast converter

A shortwave amplitude modulated broadcast converter comprising:

• a.) an antenna having an output, the antenna functioning to collect shortwave electromagnetic energy;
• b.) a preselector having an input connected to an output of said antenna, the preselector functioning to filter unwanted noise from the antenna signal, said preselector comprising a capacitor C1 electrically connected at one distal end to said antenna, the capacitor C1 functioning to decouple the incoming signal from said antenna, where an opposite distal end is electrically connected to one end of an inductor L1, an opposite end of the inductor L1 being electrically connected to an electrical ground, the capacitor C1 being further electrically connected to a capacitor C4, where an opposite end of the capacitor C4 is electrically connected to an electrical ground, the inductor L1 and capacitor C4 functioning to band pass filter the shortwave portion of the incoming signal from said antenna, the capacitor C1 being further electrically connected to one distal end of an inductor L2, where an opposite distal end of the inductor L2 is electrically connected to a contact of a switch SW1, further having a wiper electrically connected to the electrical ground which said switch is closed, the inductor L2 functioning in conjunction with the inductor L1 and capacitor C4 to filter noise, the capacitor C1 being further electrically connected to one distal end of a capacitor C5, where an opposite distal end of the capacitor C5 is electrically connected to a contact of a switch SW2, further having a wiper electrically connected to the electrical ground when the switch SW2 is closed, the capacitor C5 functioning with the inductor L1 and capacitor C4 to filter noise, the capacitor C1 being further electrically connected to the distal end of capacitor C2, and opposite distal end of the capacitor C2 being electrically connected to an inductor L3, where an opposite distal end of inductor L3 is electrically connected to a contact of switch SW3, further having a wiper electrically connected to the electrical ground when the switch SW3 is closed, the inductor L3 functioning in conjunction with inductor L1, capacitor C2, and capacitor C4 to filter noise, the capacitor C2 being further connected to one distal end of inductor L4, where an opposite distal end of the inductor L4 is electrically connected to a switch SW4 and negative electrical end of a capacitor C6, the capacitor C2 being further electrically connected to a positive electrical end of capacitor C6, where an opposite negative electrical end of capacitor C6 is electrically connected to a contact of the switch SW4, further having a wiper electrically connected to the electrical ground when the switch SW4 is closed, a capacitor C3 having a positive end connected to a negative end of the capacitor C2 and electrically connected to a power source, the inductor L4 and capacitor C6 functioning in conjunction with the inductor L1, the capacitor C3, and the capacitor C4 to filter noise;
• c.) a mixer having at least one input and at least one output, the at least one input being electrically connected to said preselector, said mixer functioning to combine the filtered antenna signal and a band select signal to transmit a combined signal at the output of said mixer, where said mixer input is further electrically connected to one distal end of a resistor R4, and an opposite end of said resistor R4 is electrically connected to the electrical ground, and the mixer input is further electrically connected to the base of a transitor Q2, where said mixer input is further electrically connected to a positive electrical end of a diode D2, the negative electrical end of said diode D2 being electrically connected to one distal end of a resistor R5 and a negative electrical end of said transistor Q2, where an opposite distal end of said resistor R5 is electrically connected to the electrical ground, a positive electrical end of said transistor Q2 being electrically connected to one end of an inductor L6, and an opposite distal end of said inductor L6 being electrically connected to the power source;
• d.) a variable frequency oscillator having an output electrically connected to the input of said mixer, the oscillator functioning to provide a mixing frequency to said mixer;
• e.) an output amplifier having an input and an output which are electrically connected to the output of said mixer, said amplifier functioning to amplify the combined antenna and variable frequency oscillator signals, where the combined signals are transmitted to an output of a radio receiver;
• and
• f.) the power source electrically connected to said preselector, said mixer, said oscillator, and said amplifier, where the power source is selected from the group consisting of batteries, rechargeable batteries, solar, capacitive, AC, DC, and electro-mechanical.