By Wander Lúcio Gomes. (PU4WLG)
Back in the day, you would order an external VFO for your radio, maybe a Glenn or Siltronics or other brand. Back then, you got exactly that, a VFO and nothing else. They worked ok, dropped off signal at the outer limits, limited tuning range, not to exciting.
But today when you order an external VFO from DDS-VFO.com you not only get a VFO but an entire radio controller!
Just imagine, not only complete tuning range with no drop out, but spectrum scanning , channel scanning, channel mode, programmable scan lists and more!
The VFO-STB does it all and on virtually ANY radio!
Pll, Crystal or Tube type Ham or CB!