In the last decade, the availability of bipolar RF power transistors commonly used in the final output stage of most HF Amateur transceivers came to an end. And this unfortunate event forced the designers and manufactures of most amateur HF transceivers to adopt the use of VMOS RF Power FETs in the final output stage of their transceivers. The VMOS device however exhibited poor linearity which caused new transceivers that used the device to have higher levels of Intermodulation Distortion (IMD) with the potential of key clicks and splatter into adjacent frequencies.

However, owners of K3, K3s, and K4 transceivers can now avoid the likelihood of high Intermodulation Distortion and splatter by upgrading their final power amplifiers with a DynoLab Low Distortion LDMOS Amplifier.

The DynoLab Low Distortion LDMOS Amplifier also has the added advantage of being insensitive to supply voltage changes due to low battery conditions, power lead loss, or generator variations while producing 100+ watts from 160 thru 6 meters at 11.0 Vdc.