Precision Audio and AV Interface Products

Radio Design Labs

ACM-3 Amplitude Component Monitor

  • 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 Options
  • Overview
  • Specifications
  • Accessories
  • Downloads
  • How to Buy
  • Product Series
  • Dimensions

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.

Input/Ouput Connector:
BNC
Maximum Input 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)
Residual Noise:
< 95 dB below 100% amplitude modulation
Oscilloscope Jack:
BNC 5 V p-p for full-scale display
Audio Output:
+4 dBu, 100 Ω source impedance
THD of recovered AM:
< 0.03%
DC Output:
DC level representing significant synchronous AM
Ambient Operating Environment:
0° C to 50° C
Power Requirement:
18 Vac, external supply included (North America)
Dimensions:
1.7 in. x 5.8 in. x 4.1 in., (4.1 cm x 15.0 cm x 10.4 cm)
Package Type:
Cardboard Box
Package Dimensions:
6 x 6 x 2.625 in.
Shipping Weight:
1.395 lbs.
WEEE Weight:
1.155 lbs.
Tariff Code:
9031.80.8060

Documents:
Format
PDF
CAD Files:
Format
High Res Images:
Format
TIF
Declaration of Conformity:
Format
PDF

Direct Dealer Program


Becoming an RDL direct dealer is quick and easy. To become a direct dealer, your company must meet the following requirements:

  • Must be an A/V contractor, sound contractor or system integrator

  • Must possess a current resale certificate for your state

Click here to submit a new direct dealer account inquiry.


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RACK-UP SERIES

RACK-UPs are the original 1/3 rack width 1RU rack-mountable modules for the A/V, recording and broadcast industries. Module functions include mixing, switching, pre-amplification, power amplification, distribution, gain control, equalization and more. Some RACK-UP modules are constructed in solid encapsulated durable industrial black plastic enclosures; MAX RACK-UPs are assembled using heavy duty extruded aluminum and steel panels. The rear panels feature clear bold white lettering for the terminal blocks and connectors. Reverse-printed front-panel polycarbonate laminates provide an attractive, durable finished appearance for rack-mounted or free-standing use.

Since RDL first originated 1/3 rack width modules, RACK-UPs have led the industry in economical, high-performance and cost-effective long life solutions in system designs. Multiple RACK-UP modules may be interconnected, or may be connected with other RDL modules to form all or part of an A/V system. Certain RACK-UP modules are often used free standing; all RACK-UPs may be rack mounted. A complete range of mounting options is available for systems comprised of multiple modules.

RACK-UP modules provide input, output and control connections through terminal blocks and connector (or both) according to common usage in professional installations. Front panels are equipped with connectors, user controls and LED metering, as appropriate.

Functions and features provided by RACK-UPs, since their introduction, are still available today. This continuity in product offering and support makes RACK-UP modules a preferred long-term resource for system design solutions. RACK-UP SERIES modules are designed and manufactured in the U.S.A.

ACM-3 ACM-3