Bob, G3PJT wrote: "Does anyone know if it is possible to increase the VOX sensitivity on the KSB2?" ========== Increasing the value of R14 on the KSB2 board (originally 1000 ohms) to 5.6k or 6.8k will increase the audio input to the unit and therefore increase the VOX sensitivity. This mod works fine on my K2. 73, de Earl, K6SE K2/100 #2622