Topband: Detuning Relay Flyback Diode
hwardsil at gmail.com
Sat Dec 23 18:15:58 EST 2017
If you have any diodes in a switch box or the like, be sure to add a
bypass cap across the diode - 0.01 uF will do. Diodes are great
harmonic generators (and mixers) and equipment connected to control
cables or feed lines often is pretty hot with RF current. That includes
rotator controllers, too.
73, Ward N0AX
On 12/23/2017 11:00 AM, topband-request at contesting.com wrote:
> If the radio is keying both the detuning relay and an amp, you want to use
> some series diodes to prevent sneak paths between amp key voltage and your
> detuning relay voltage. These isolation diodes do not add any delays.
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