A synchronous bi-directional active power conditioning system suitable for wide variable frequency systems or active loads such as adjustable speed drives which require variable voltage variable frequency power management systems is disclosed. Each participant’s PDAcell phone includes a force message alert software application program for both creating and processing these forced message alerts. In a first transformer-containing category of embodiments of the invention, the input winding of the amplifier’s transformer is comprised of a plurality of series-coupled windings, one for each of the plurality of input componentssignals such that the input components constitute a series connection of low output impedance sources applied to the amplifier’s resonator and load. The ends of both of the laces converge on both of the edges of the opening, with at least one end of each lace extending through a respective end lacing eye of the fastening provided on each of the opposite edges. Preferably, the first and second divisors N and M are each integers greater than one, and the second divisor M is not an integer multiple of the first divisor N. The fabric panel has a display face and an outer perimeter portion.