Manual

FUNCTIONALITY
FUNCTIONALITYFUNCTIONALITY
FUNCTIONALITY
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Q80–TelemetryRadioMotherboardlayout.
Maxon Radio Module.
Maxon Radio Module.Maxon Radio Module.
Maxon Radio Module.
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TheMaxonRadiomoduleisatotallyselfcontainedstateoftheartfullysynthesizedradiotransceiver.
ThepicturetotherightshowstheMaxonradiomoduleinstalledontheQ80Motherboard.
ThekeyfeaturesoftheMaxonRadiomoduleinclude:
 Fullysynthesised16channelreceiverandtransmitter.
 Eachofthe16channelscanbeprogrammedfor:
• 12.5kHzor25kHzchannelspacing.
• Simplexorrepeateroperation.
• 0.5to5wattsoutputin8steps.
 LowpowerconsumptionStandby80mA,Receive100mAand
Transmit1.2Aat5Wattsoutput.
 AerialBNCconnector50ohmsunbalanced.
 Small,compact,environmentallysealedandrugged.
Power Supply
Power SupplyPower Supply
Power Supply
The Q80Moduleis designed tooperate withaDC powersupplyvoltage of nominally12 volt. The Q80 Module
drawsapproximately80mAinStandby,100mAonReceiveand1.2AonTransmitat5Wattsoutput.
ThepowerconnectorislocatedonthebottompaneloftheQ80Moduleandislabelled‘PWR’.Theconnectionsto
thepowerconnectorare:
G Ground.Thenegativeleadofthepowersupply.
+IN Thepositiveleadofthepowersupply.
CTL TheremotepowerON/OFFcontrolinput.
Note TheQ80 Module has a2 ampfuse ontheQ80Motherboardto protect theunitunder fault conditions or
when reversed polarity or over-voltage power supplies are connected to the module.  Refer to the
TechnicalNotesfordetailsonhowtoreplacethisfuse.
The DC power supply to the Q80 Module must be adequately smoothed and be free from noise and voltage
transients.WheretheDCsupplyisderivedfromtheACmains,orbatterieswithanassociatedACmainsbattery
chargerthesedevicesmustcomplywiththerequiredelectricalregulations.
Note ThemaximuminputvoltagetotheQ80Moduleis15volts.Inputvoltagesinexcessof15voltswillblow
theinternal2ampfuse.
ThepowersupplyoftheQ80ModuleincludesaremotepowerON/OFFcontrolline.ThisallowstheQ80Moduleto
be switched OFF remotely by a Q22 – DATRAN eXcel module when the system batteryvoltage drops too low.
ThisfeaturepreventstheQ80Modulefromtotallydischargingthesystembatteryandeliminatesthepossibilityof
erraticoperation.
Radio Interface
Radio InterfaceRadio Interface
Radio Interface
The embedded Maxon Radio interface on the Q80 Motherboard provides a simple and versatile half duplex
interfacebetweentheQ80Moduleand
QTech RTUmodulesorcustomerspecificequipment.
The interface provides opto-isolation of both the transmit key and the receive busy lines.  A bi-directional audio
interface connectsthe transmitandreceived audio to theauxiliaryequipmentviaan external line isolationaudio
transformer.PotentiometersontheQ80Motherboardareprovidedto independentlyadjust boththereceiveand
transmitaudiolevelsforcustomerspecificapplications.
TheQ80Moduleiseasilyinterconnectedtoanassociated
QTech RTUmoduleviaastandard QTech DATRAN6
wayDINradiopatchcord.