To meet the requirements of digital audio broadcasting (DAB) transmitter manufacturers, Richardson Electronics has announced the availability of two new L-band (1450-1500 MHz) power amplifiers designed and manufactured by RF Engineered Solutions, Ltd. (RES). The AL50-D provides 70 Wrms for DAB applications and 200 W CW. The AL100-D is rated at 140 Wrms and 400 W CW. RES also manufactures 15 Wrms and 80 Wrms L-band pallets to accommodate customers preferring to use the pallets as a building block for their own amplifier design (see the table).

The AL-series amplifiers and pallets employ state-of-the art LDMOS technology. The 19-inch rack mountable AL50-D and AL100-D feature an unparalleled power output capability in relation to their size. Both operate through a 220 VAC internal power supply. The LDL15 and LDL80 pallets require a 35 VDC supply.

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