CallChange for Psion Series 3a & 3c

This program is intended for bell ringers who want to experiment with different patterns for call changes. It can be used by learners who want to try out their ideas as a dry run outside the tower.

Setting up

Unpacking the zip file should have given you:

Instal CallChange by putting CallChan.opo in the \opo\ directory, and run it by selecting it from under the RunOPL icon on the system screen.

Use

You are first prompted for the number of bells you want in your ring. 12 is the maximum at the moment. Whatever you chose, the machine will assume that you are ringing on the back bells, meaning that if you choose 6, you will get a back 6 pattern (EDCBAG) rather than a front 6 pattern (GF#EDCB). You can also at this stage turn the sound off.

To start with, you hear rounds, and can begin to call the changes. You can call your change up or down, it makes no difference. The machine will work out the new order and, if your sound toggle is on, will ring the new sequence.

You are also given other options. You can toggle the sound on or off; you can select a different number of bells in your ring; and you can prompt the machine to ring the current pattern again. Press Escape at any time to stop the program.

Contact

Neil Sands
neilsands@cix.co.uk