Specifications

HY-03 User Handbook

1 Introduction

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

oors. 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:

• Fullyautomatic–adaptstovaryinglineconditionsandhasautomaticsignallimiting.

• Localandremotelineholdswitching–callscanberemotelyswitchedthrougha

mixing console.

• Momentaryorpermanentlatchingremotescanbeenabled.

• Balancedmic/lineinput–10kΩbalancedinputselectablefor0dBucleanfeedline,or

microphone level with adjustable gain.

• Balancedoutput–0dBulowimpedancebalancedoutput,withoutputgainadjustment.

• Mixedoutput–theoutputcanbeamixofthecallerandmic/lineinputsignalsfor 

recording both sides of the telephone conversation.

• Integratedringdetector–automaticcallansweringafterapre-determinednumber

of rings.

• FittedwithK-breakdisconnect(linepolarityreversalintheUS)detectionasstandard

with an option for dial-tone disconnect (HY-03DTD option).

• Linelimiter,bandpasslterandoutputnoisegatewithpresetthresholdprovidinglow

distortion crystal clear audio.

• 45dBtypicallinebalancerejectionontone,28dBoncomplexwaveforms.

• Builtinpowersupplywithswitchable115V,or230V,mainsinput.

• BABTapprovalcompliantwithEuropeanPTTspecications.

INTRODUCTION