CQ Reviews: The Heil Sound ClearSpeech~® DSP Speaker System

摘要

Imagine your old TS-520 or similar vintage transceiver sorting through the QRN and pulling out copyable CW as well as a brand new $1500 HF base station. If you have the powerful capabilities of digital signal processing (DSP), your old rig running DSP in the audio section will give you some remarkable success. Sure, the multi-thousand-dollar new HF rigs with DSP down in the IF can do a better job, but listen for yourself to how well a plug-in DSP speaker system does the job in hushing the rush of constant background noise, notching out heterodyne whistles, and achieving faithful audio output of the desired station as you switch DSP in and out.