How to program Harris Race Radios Speedway NZ One Way Receivers, New Blue, see below for reprogramming instructions.
Speedway NZ frequency is
455.05625Mhz CTCSS 123Hz
2/ Press number 1
4/ Press up and down arrows until the desired frequency is required. Speedway CH2409 455.05625
5/ Short Press on/off button CTC flashes, press up and down to select off
6/ short press on/off button