Racal Electronics Plc shares were a very bright spot in a dull market Friday, rising ninepence to 255p after the company sent round invitations for a big bash scheduled for this morning to announce Racal’s plans for the pan-European digital cellular equipment market: Racal and Plessey had already agreed to join forces ahead of the European agreement, but today’s announcement is expected to include the names of one or two continental partners joining the consortium.