Specifications

Macrotel DIGITAL
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1 INTRODUCTION
Macrotel Digital is a single line digital telephone hybrid, especially designed to fit all TV and radio station
requirements.
With the variety of telephone systems in the world today, from cellular mobile phones to analog and to digital,
it’s increasingly difficult to have all callers sound the same on-air in a broadcast environment.
The Macrotel Digital uses digital signal processing (DSP) technology to continually adapt to telephone-line
conditions and to deliver the maximum isolation between the send and receive audio (> 55 dB).
With no echo and no "bottom of the barrel" sound, the Macrotel Digital is thus ideal when the very best audio
quality and uniformity is required for talk shows, news feeds, production, recording studios, and even internet
applications.
Several functions (selectable from front panel DIP switches) greatly expand its operation. Automatic
gain control (AGC) allows each call to be delivered at the same level. Built-in caller Ducking stage
reduces the caller's audio level when the announcer speaks. Auto mix-minus feature allows easy
installation to consoles with no mix-minus capability.
Additionally, the hybrid can automatically answer the telephone line after the first ring and automatically
disconnect it after the caller hangs up. The REC Output can be configured to contain a mix of send and
caller audio or caller audio only.
In accordance to mainland Europe, USA, Canada, and UK compliance standards, the Macrotel Digital is
perfect for your telephone application.
1.1 MAIN FEATURES
• Crystal clear, consistent audio quality
• Continual adaptation to POTS line conditions
• Best isolation between Send and Receive audio
• Selectable caller control (ducking)
• Worldwide compliant
• Full Remote control
• Selectable mic / line level input
• Selectable automatic mix-minus
• Selectable AGC on Receive signal
• Selectable auto-answer / auto-disconnect