Armstrong X1000B AM Transmitter 1000 Watt

This compact, 1KW Solid State AM Transmitter is HD Radio ready and offers high quality audio, low maintenance and optimized multiphase modulation. Features Optimized multiphase modulation, 90% PA efficiency with 80% overall efficiency (AC in to RF out).
Housed in a heavy-duty aluminum chassis, it easily fits into a 19″ rack, taking up only seven rack spaces (12.25″). It features hot pluggable 600-watt modules and three power level settings (that can be easily field set) to give you versatility for full power and pre sunrise/post sunset power adjustment. It is capable of 150% positive modulation and offers complete remote control capability via a rear mounted DB 25 connector.
HD Radio* compatible, featuring an external RF input which can be used for digital signal injection.

Features;
+90% RF PA efficiency
Optimized multiphase modulator (flat group delay, low source impedance)
Capable of +150% positive modulation
Compact design
Designed to easily accept the new digital IBOC signal
Three preset power levels and full remote control capability
Two hot-pluggable 600 Watt RF modules for extra reliability and headroom
Two high efficiency switching power supplies
Fully redundant RF, modulator, cooling system and power supplies