Service BulletinAmateur Radio Division

Subject: TS-430S - Notch ControlDate: November 7, 1983

Notch/Squelch control (VR5) may be replaced with part number R24-9403-15, to allow greater flexibility in adjustment. As can be seen from the chart below, the curve is smoother on the high frequency side (1 KHz to 2.7 KHz), making tuning easier. VR5 is located on Switch unit (X41-1470-00).

©1983 Kenwood