PAR97_POWER
unsigned char val = PAR97_POWER;
pp->ops->write_data(pp, PAR97_POWER | PAR96_PTT);
pp->ops->write_data(pp, PAR97_POWER | PAR96_PTT | PAR96_BURST);
pp->ops->write_data(pp, PAR96_PTT | PAR97_POWER); /* switch off PTT */
pp->ops->write_data(pp, PAR96_PTT | PAR97_POWER);