Easy LPFM Radio Licensing
Get Adobe Flash player

NT 150 – 150W

Phase Locked Loop Programmable
FM Exciter/Transmitter 87.5 – 108 MHz Range


  • Includes low pass/harmonic filter and can be used as a stand-alone transmitter
  • Instant front panel programmability in 10 kHz increments
  • All functions via LCD password protected
  • Adjustable power output from 0 to 150 W with automatic power control
  • Remote control features (optional) include: power on/off, fwd & ref power metering, ability to change frequency and Internal temperature metering
  • Telemetry Output and FSK-ID Keyer (optional)
  • FCC and Industry Canada Approved



  • Rated Output Power: 0-150 Watts continuously variable (ALC)
  • RF Output Connector: “N” type female
  • RF Output Impedance: 50 ohm
  • Frequency Range: 87.5 MHz to 108 MHz
  • Frequency Programmability: direct from front panel in 10 kHz increments
  • Frequency Stability: better than 5 ppm (± 500 Hz)
  • Modulation Type: direct carrier frequency modulation
  • Emission class: F3E
  • Spurious & Harmonic Suppression: < – 80 dB or better
  • Stereo Separation: 55 dB @ 1 Khz
  • Distortion: < 0.1 % (typ. 0.05 %)
  • Asynchronous AM S/N Ratio: 65 dB below reference carrier with 100%amplitude modulation at 400Hz
  • without de-emphasis, no FM modulation present
  • Synchronous AM S/N Ratio: 60 dB or better below reference carrier with 100% amplitude modulation at 400 Hz, without de-emphasis, FM modulation = ±75 kHz at 400 Hz
  • AC Power Requirement: 117 or 230 V, ±10%, 50-60 Hz, single phase (Internally Selectable)
  • Power Consumption: approx. 550 W from AC
  • Panel Size: 483 mm (19″) W x 88 mm (3″) H (2 standard rack spaces high)
  • Overall Depth: 410 mm (16″)
  • Weight: 10 Kg (22 Lbs)
  • Ambient Temperature Range: 0° to 50° C (32° to 122° F)
  • Pre-emphasis: for FCC 75 μsec; for CCIR 50 μsec internally selectable
  • Composite Operation
  • Composite Inputs: four total, 1 for MPX and 3 for SCA
  • MPX Input: 1 unbalanced BNC connector
  • MPX Input Impedance: 2k ohm
  • MPX Input Level: 3.5 Vp-p (1.237 Vrms/3.64 dBm)
  • Composite FM unweighed S/N ratio: >68 dB below ±75 kHz deviation at 400 Hz measured in a
  • 30 Hz to 100 kHz bandwidth with 75 μsec de-emphasis (RMS)
  • Composite Total Harmonic Distortion: 0.05% typical
  • Composite Intermodulation Distortion: 0.05%, measured with a 1 kHz and a 1.3 kHz tone, 1:1 ratio, at 100% modulation
  • Baseband: 30 Hz – 60 Khz within 0.15 dB
  • Crosstalk: Main to stereo subchannel and stereo subchannel to main >55 dB (60 dB typical)
  • SCA Inputs: 3 unbalanced BNC connectors
  • SCA Input Impedance: 10k ohm
  • SCA Input Levels: 0 dBm (775 mVrms/2.2 Vp-p) nominal for ±7.5 kHz deviation, adjustable
  • SCA Amplitude Response: ±0.8 dB, 40 kHz to 100 kHz
  • Crosstalk: 67 kHz SCA to main or to stereo subchannel >65 dB
  • Crosstalk: 92 kHz SCA to main or to stereo subchannel >70 dB
  • Monaural Operation
  • Audio Input Impedance: 600 ohm balanced or unbalanced; 50 dB common mode suppression
  • Audio Input Level: 0 dBm (775 mVrms/2.2 Vp-p) for ±75 kHz, adjustable
  • FM S/N Ratio: >70 dB below ±75 kHz, deviation at 400 Hz measured in a 30 Hz to 20 kHz bandwidth with 75 μsec de-emphasis (RMS)
  • Audio Frequency Response: ±0.8 dB, 30 Hz to 15 kHz
  • lntermodulation Distortion: 0.05% or less, measured with a 1 kHz and a 1.3 kHz tone, 1:1 ratio, at 100% modulation

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 19,166 other subscribers

  • WorldCast RDS Encoder Shipping in February
    WorldCast’s Audemat marque is soon to be shipping a new RDS encoder, Audemat RDS Encoder. Built on the company’s FMB80, the RDS encoder carries the expected RDS/RDBS tools (e.g. artist name, song titles, traffic message, EAS, etc.). But looking forward it adds an MPX-over-AES digital audio ...
  • Marketing Your Station in 2019
    Ask a radio advertiser: One of our medium’s strengths is the ability to target specific audiences with affordable frequency. So as the program director or marketing director of a radio station, you’d probably buy spots on a direct format competitor … if they’d sell them to you. They won’t; I’ve ...
  • AM Preemphasis — Time for a New Curve?
    Larry Langford is owner of WGTO(AM) and W244ds in Cassopolis, Mich. He has been in radio since 1965. His commentaries on radio issues such as those facing AM owners are a recurring feature. Read his past articles by searching for “Langford.” There have been numerous articles about reducing AM ...
  • UNLV Students Use Crystal Radio to Win Hackathon
    The results of the inaugural Media Innovation Hackathon are in — and the winners proposed yet another use for AM/FM frequencies. In a press release, Beasley Media Group CEO Caroline Beasley said the ideas “ignite our thinking as a media company preparing for the future.” Chosen by experts from ...
  • FCC to Tackle Filing Issue Related to EEO
    When it gets back to work after the government shutdown, the Federal Communications Commission will have a fair amount of work on its plate — including a formal vote on equal employment opportunity enforcement, which one nonprofit organization is hoping will bring about changes that it says are 14 ...
  • Dash Radio Celebrates the Human Touch
    Given that online broadcaster Dash Radio is reaching more than 10 million listeners monthly since its launch in August 2014, the company must be doing something right. And what Dash is doing right, said founder Scott Keeney (aka DJ Skee) “is offering listeners online audio that is curated and ...
  • IK Expands Tablet/Smartphone Mount Line
    Ideal for organizing smart devices around the studio, IK Multimedia is adding a new line of tablet computer and smartphone mounts, the iKlip 3 series. The iKlip 3, iKlip 3 Video and iKlip 3 Deluxe provide mounting options for keeping smart devices within visual range and at visually useful angles ...
  • World Radio Day 2019 Underscores Radio’s Role in Encouraging Peace
    The 8th annual World Radio Day will take place on Feb. 13. With the theme “Dialogue, Tolerance and Peace,” the 2019 edition is emphasizing radio as a “vector of peace.” In anticipation of this year’s event, Radio World spoke to UNESCO’s Chief of Media Development and Society, Mirta Lourenço, to ...
  • Will ABC Shortwave Broadcasts Really Be Restored?
    PERTH, Australia — In response to the article Opposition Will Restore Shuttered ABC Shortwave Broadcasts, the CEO and board chairperson who made the decision to switch-off the last remaining domestic and international shortwave broadcasts are now no longer with the ABC. They claimed a lack of ...
  • When Audio Is a Utility, Distribution Wins
    Consensus from those who measure trends is that audio consumption is up! C’mon … this has gotta be cause for celebration for the radio industry. Haters will be quick to point out that consumption is being fueled by streaming services like Spotify, combined with the still-emerging — but assumed to ...