The ES Series can be used as a stand alone transmitter or translator. All models have front panel programmable FSK ID. They are perfect for small markets as a main analog transmitter, as well as for LPFM applications and can also be used as an emergency or back up at the largest stations.

Meets or exceeds all FCC standards.


  • Totally Solid-State
  • Wide range input 88 to 264 VAC
  • Frequency agile from 87.7 to 108 MHz
  • True proportional (VSWR) fold back
  • Built-In Stereo Generator
  • Built-In FSK ID
  • Front panel metering
  • Remote Control Interface
  • Rack Mountable
  • Compact Chassis
  • Designed and Manufactured in the U.S.A.
RF Power Output: 50 W – 550 W
Frequency Range: 87.7 – 107.9MHz
Audio Input Impedance: 600 Ohms
Audio Input Level (composite): 1.25 volts RMS (3.50 volts peak-to-peak) for +/- 75 kHz deviation
Audio Input R & L Stereo Generator: -10dBm
Frequency Response (composite): 20 Hz—15 (90) KHz
Pre-emphasis: 75 (50 μS to order)
Harmonic Distortion: less than 0.1%
Signal to Noise Ratio: >70 dB RMS
RF Output Impedance: 50 Ohms
Output Connector: N-Type Female
Harmonic Attenuation: Meets or exceeds FCC requirements
Power Requirements: 150-500W – 88 to 264 VAC
Dimensions and Packed Weight: 19” x 12” by 3RU; 25 lbs

Operating Manual


Wiring Diagram