<?xml version="1.0" encoding="utf-8"?>
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        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType roleURI="http://www.calamos.com/role/GeneralDescriptionOfRegistrant" id="GeneralDescriptionOfRegistrant">
        <link:definition>0000 - Disclosure - General Description of Registrant</link:definition>
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        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:definition>0000 - Disclosure - Capital Stock Long Term Debt And Other Securities</link:definition>
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        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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  <element name="InvestingInRealEstateInvestmentTrustsRiskReitMember" id="chy_InvestingInRealEstateInvestmentTrustsRiskReitMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" nillable="true"/>
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