Products

Product Description

RDL's ACM technology is the only time-proven, industry accepted method of controlling Synchronous AM Noise (the elusive FM transmission bandwidth variations that aggravate multipath artifacts in listeners' receivers). Hundreds of top performing FMs in every major U.S. market turn to ACM technology for maximum bandwidth performance. Every transmitter, new or old, can easily produce poor bandwidth, or can be made to perform as well as any signal in the market. Every FM station needs ACM technology to provide the accurate AM measurment and continuous monitoring needed for optimum transmitter tuning and performance. The ACM-3 is a test instrument which monitors the amplitude component present on frequency modulated carriers. The AM component is representative of bandwidth characteristics in the transmission system. The technology of significant synchronous AM noise monitoring was pioneered by Radio Design Labs, the originator of AM noise monitors for FM radio and television aural transmission.

• Maintain Clarity
• Maximize Loudness
• Maximize Stereo Separation
• Reduce Subcarrier Crosstalk
• Assure Consistency of your Signal Coverage
• Maintain Positive Control of Multipath Artifacts
• Maximize Performance From Your FM Transmitter
• Mount using RU Series Mounting s

• Input/Ouput Connector: BNC
• MaximumInput Signal: 30 V (combined filtered carrier + AM)
• Measurement Range: -20 dB to -69 dB (front-panel display), -10 dB to -90 dB (front-panel scope jack)
• Oscilloscope Jack: BNC 5 V p-p for full-scale display
• Audio Output: +4 dBu
• DC Output: DCLevel representing significant synchronous AM
• Power Requirement: 18 VAC
• Dimension: 1.7" x 5.8" x 4.1"
• Weight: 1.54 lbs