The transfer function of a stable discrete-time LTI system is \(H\left( z \right) = \frac{{K\left( {z - \alpha } \right)}}{{z + 0.5}}\), where K and α are real numbers. The value of α (rounded off to one decimal place) with |α| > 1, for which the magnitude response of the system is constant over all frequencies, is
Enter numerical value using the virtual keypad. Round off where necessary.