A Q Multiplier is Grandpa's DSP and it will pep up any entry level shortwave or novice grade receiver and make it more sensitive and selective.
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Estimating the value of a rig can be challenging. We collect prices paid by real hams over the years to help you estimate the value of a used Heathkit HD-11. Just bought or sold this model? Let us know what you traded it for and help other ham operators!
These estimates are based on the following prices: