The HY-03 is a high quality analogue telephone hybrid, which is suitable for most general telephony applications and is often used in radio and TV stations, bingo halls and dealing floors. The analogue HY-03 telephone hybrid is the replacement for the HY-02, which for many years has set the standard as an excellent value, high quality telephone hybrid.
The HY-03 can be used for any application where a clean telephone signal is required and the line is not subject to delay. The HY-03 retains many of the features of the HY-02 and adds some additional ones. Some of the features of the HY-03 include :
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Fully automatic – adapts to varying line conditions and has automatic signal limiting.
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Local and remote line hold switching – calls can be remotely switched through a mixing console.
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Momentary or permanent latching remotes can be enabled.
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Balanced mic/line input – 10kohm balanced input selectable for 0dBu clean feed line, or microphone level with adjustable gain.
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Balanced output – 0dBu low impedance balanced output, with output gain adjustment.
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Mixed output – the output can be a mix of the caller and mic/line input signals for recording both sides of the telephone conversation.
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Integrated ring detector – automatic call answering after a pre-determined number of rings.
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Line limiter, bandpass filter and output noise gate with preset threshold providing low distortion crystal clear audio.
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28dB typical line balance rejection.
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Built-in power supply with switchable 115V, or 230V, mains input.
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BABT approval compliant with European PTT specifications.
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Telephone hybrids (or telephone balance units) provide the interface between professional audio equipment and the public telephone network. They provide protection for your equipment and the public telephone lines, allowing for varying line signals and line conditions. Automatically cancelling out the unwanted signal they also facilitate two-way communication down a single telephone line.
Each hybrid has a telephone line connection, a handset connection and separate terminals for audio input and output from a broadcast mixer, or other professional audio source.
A large proportion of Sonifex hybrids are used in radio and television broadcasting applications for allowing external callers to be connected to the studio mixing console. Most of the other units are supplied to communication operations for allowing extremely effective conversion between 4-wire audio circuits and standard telephone lines.
The ringing detector can be used when you need to answer a call automatically, for instance, if a journalist files a report to a tape recorder over a telephone line, the call can be picked up after a set number of rings by the ringing detector. The HY-03 has a built in ring detector that is enabled by one of the configuration settings switches on the rear panel.
Sonifex is a BABT approved manufacturing facility with a licence to build telecommunications equipment and all products are compliant with BS6301, BS7002, BS415 and CTR21.
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