Armstrong's "LCD Series" and "Series B" Solid State FM Transmitters offer you the maximum redundancy available in solid-state transmitters today.

Our design utilizes a building block approach to achieve the required transmitter output power. Multiples of either our FM1000LCD or FM2000B self-contained Solid State Amplifier are rack mounted with an appropriately sized driver and externally combined.

These amplifiers both use 300-watt RF modules that contain the Philips BLF 278 MOSFET. This commonly available FET has been proven in thousands of solid state transmitters in use worldwide.

Armstrong ensures that each output device is thermostatically protected and protected against excessive VSWR by a fold back circuit, which proportionally reduces power when VSWR is present. In addition the transmitter combiner also triggers fold back when external VSWR is detected.

Metering and Alarm indications are available for each amplifier, the exciter and the driver. Plus, overall transmitter metering and alarms are available both on the transmitter and for remote monitoring via DB25 connector located on the rear panel of their chassis.


PDF Links to FM Transmitter Literature:
(to download the files, right click on the link and choose 'Save Target As...', otherwise, left click to open)
FM2500B 2.5KW FM Solid State Amplifier
FM Series B  Medium Power Solid StateTransmitters
FM Series C  Medium Power Solid State Transmitters


Armstrong Transmitter Corporation
4835 North Street, Marcellus, NY 13108
phone: (315) 673-1269 / fax: (315) 673-9972 / email: