Older projects The club active antenna kit was proposed and parts obtained by Kevin VK4WA. Kevin VK4ZR provided documentation and tested prototypes. It is described in the items below. The club has obtained a quantity of Tait 2020 transceivers for the use of club members. These are programmed for the 70 cm band and are suitable for the VK4BA repeater.Some of the standard dynamic microphones have lost output with age. This project by Jan VK4EBP is to replace the dynamic element with an electret insert and restore modulation.