Dual synthesizer RF frequency plan optimized for interference avoidance

A radio frequency (RF) device comprising:

• a first programmable synthesizer for generating a first output frequency signal having an Frf frequency;
• and
• a second programmable synthesizer for generating a second output frequency signal having an Fif frequency,
• wherein a sum of the Frf and Fif frequencies equals an Fchannel frequency of the RF device, and wherein the Frf and Fif frequencies avoid an interfering signal unrelated to a component of the RF device.

A method of improving interference avoidance in a radio frequency (RF) device, the method comprising:

• programming a first synthesizer to generating a first output frequency signal having an Frf frequency;
• and
• programming a second synthesizer for generating a second output frequency signal having an Fif frequency,
• wherein a sum of the Frf and Fif frequencies equals an Fchannel frequency of the RF device, and wherein the Frf and Fif frequencies avoid an interfering signal unrelated to a component of the RF device.

A method of improving interference avoidance in a radio frequency (RF) device, the method comprising:

• programming two synthesizers in the RF device to provide a plurality of selectable intermediate frequencies for every RF channel frequency;
• and
• randomly choosing the intermediate frequency until an interfering source is avoided,
• wherein a sum of selected intermediate frequencies equals an Fchannel frequency of the RF device.

A radio frequency (RF) device comprising:

• a first synthesizer for generating a first output frequency signal having a first frequency;
• a second synthesizer for generating a second output frequency signal having a second frequency;
• a first mixer for receiving an output of the first synthesizer and an output of the second synthesizer;
• and
• a second mixer for receiving an input signal and an output based on the output of the first mixer,
• wherein the first and second frequencies can be selected by programming the first and second synthesizers, wherein the first and second frequencies avoid an interfering signal unrelated to a component of the RF device, and wherein a sum of the first and second frequencies equals a channel frequency of the RF device.