Re: Overloads in Tescun radios (and other DSP radios )


Gary DeBock
 

On Sun, Nov 28, 2021 at 12:58 PM, Zacharias Liangas wrote:
As in result can such so high signals damage to the internal electronics?
Zacharias and All,

It is very unlikely that an Ultralight's internal electronics would be damaged by strong signals received by the stock loopstick, However, directly connecting external antennas with strong RF levels (in place of the stock loopstick) is risky.

In 2016 I tried a project of directly connecting a small FSL antenna to a Tecsun PL-380, and it worked very well as long as the FSL diameter was only 3 inches or smaller   https://dreamcrafts.box.com/s/aq40d24dt7yawrf8qvi2zehoi8evej3g
Connecting FSL's larger than 3" in diameter was risky, with one PL-380 having its DSP chip destroyed by a directly connected 4 inch FSL. The CC Skywave was very intolerant of directly-connected FSL's, with two models destroyed by experiments to connect a 3 inch and 2 inch FSL. It's much better to use inductively-coupled FSL's (or air core loops) if you really want high DXing gain with Ultralights.

Gary DeBock (in Puyallup, WA, USA)

Join main@UltralightDX.groups.io to automatically receive all group messages.