Home > Recreation > Radio > Shortwave and DX Listening > Equipment > Peripherals and Add-Ons
This category is for information about equipment that is considered a retrofit or other add-on to basic equipment (mainly receivers). Such items may include pre-amplifiers, IF filters, external speaker systems, DSP and other noise reduction systems.
http://www.w9gr.com/
Information about the DSP-3 which removes noise and other unwanted interference from voice and data communications signals.
http://www.qsl.net/wd8das/sync.html
Offers information about synchronous detection and retrofit synchronous detectors in kit and finished form.
Home > Recreation > Radio > Shortwave and DX Listening > Equipment > Peripherals and Add-Ons
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