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Harris Micromax, Руководство по эксплуатации

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     3-4

      WARNING:  Disconnect primary power prior to servicing

Harris Micromax FM Exciter

   Operation

                                       REV1     01/12/2007

Press the KNOB to enter frequency setup.  Three arrows will appear to the left of the frequency

display as shown below.  Then use the knob to change the operating frequency.  When the desired frequency
is displayed on the screen, press the knob to change to the new frequency.

3.5

Adjusting modulation deviation level

Modulation level adjustments are on the rear panel next to each audio input.  Adjust modulation

deviation levels using a small screwdriver as shown below.  On front panel, 100% modulation is indicated
when the bar graph on the default menu is equal to the 5 vertical dots on display as shown below.

MPX (composite) level adjust

Mono or left channel  level adjust

Right channel  level adjust

(REAR PANEL VIEW)

100% modulation

Содержание Micromax

Страница 1: ...Micromax 30 Watt Solid State FM Exciter Operation Manual ...

Страница 2: ...WARNING Disconnect primary power prior to servicing HarrisMicromaxFMExciter REV 1 01 12 2007 ...

Страница 3: ...bothforthepersonnel performingthemandforthedeviceitself thatshallbeusedonlybytrainedpersonnel Harrisdoesnotassumeresponsibilityforinjuryordamageresultingfromimproperprocedures orpracticesbyuntrained unqualifiedpersonnelinthehandlingofthisunit Please observe all local codes and fire protection standards in the operation of this unit WARNING Alwaysdisconnectpowerbeforeopeningcoversorremovinganyparto...

Страница 4: ... if necessary and observe for breathing Ifnotbreathing beginartificialbreathing Figure3 2 tilthead pinchnostrils makeairtight seal fourquickfullbreaths Remembermouthtomouthresuscitationmustbecommencedas soon as possible Figure 3 1 Figure 3 2 Check for pulse Fig 3 3 if pulse is absent begin artificial circulation Fig 3 4 depressing sternum Fig 3 5 Figure 3 3 Figure 3 4 Figure 3 5 In case of only on...

Страница 5: ... possible If arms or legs are affected keep them elevated Ifmedicalhelpwillnotbeavailablewithinanhourandthevictimisconsciousandnotvomiting givehimaweaksolutionofsaltandsoda 1levelteaspoonfulofsaltand1 2levelteaspoonfulof baking soda to each quart of water neither hot or cold Allow victim to sip slowly about 4 ounces halfaglass overaperiodof15minutes Discontinuefluidifvomitingoccurs DO NOT give alc...

Страница 6: ...WARNING Disconnect primary power prior to servicing HarrisMicromaxFMExciter REV 1 01 12 2007 ...

Страница 7: ... 1 2 4 2 RF output connection 2 2 2 4 3 Audio input connections 2 2 2 4 3 1 MPX composite audio input connection 2 3 2 4 3 2 Mono audio input connection 2 3 2 4 3 3 Left and right channel audio inputs 2 4 2 4 4 Remote I O connector 2 5 2 4 5 Service connector 2 6 SECTION3 Operation 3 1 Introduction 3 1 3 2 Turning on the exciter 3 1 3 3 Adjusting RF power output 3 2 3 4 Operating frequency selecti...

Страница 8: ...WARNING Disconnect primary power prior to servicing HarrisMicromaxFMExciter REV 1 01 12 2007 ...

Страница 9: ...uring shipment Noteanydamageonthebillofladingandretainshippingdocuments If the contents are incomplete or if the unit is damaged contact the carrier and factory immediately Timelimittofiledamageclaimswiththecarrieris14days 2 3 Returns and exchanges Damaged or undamaged equipment should not be returned without first obtaining return authorization fromfactory Factorywillprovidespecialshippinginstruc...

Страница 10: ...ion Connect an antenna or an RF load to the type BNC female RF output connector on the rear panel 2 4 3 Audio input connections All program audio connections are on the rear panel Micromax is designed to accept any one of the threetypesofprogramaudioinputs 1 MPX composite 2 Mono 3 Leftandrightchannels usingthebuilt instereogenerator 4 AES EBU with optional digital input card ConnectACcordhere Conn...

Страница 11: ...otoSETmenuandselectmono composite fromtheaudiomono stereoselection seesection3of manualonhowtonavigatetheLCDdisplay 2 4 3 2 Mono audio input connection ConnectMonoaudioinputtoXLRconnectoronrearpanel OnthefrontpanelLCDdisplay gotoSET menu and select mono composite from the audio mono stereo selection see section 3 of manual on how to navigatetheLCDdisplay Connectmonoaudioinputhere ConnectMPX compos...

Страница 12: ...onnect left and right channel audio inputs to XLR connectors on rear panel On the front panel LCD display go to SETmenu and select stereo from the audio mono stereo selection see section 3 of manual on howtonavigatetheLCDdisplay Thiswillactivatethebuilt instereogeneratorandturnonthe19kHzstereo pilot tone at 10 injection Connectleftaudioinputhere Connectrightaudioinputhere REAR PANEL VIEW ...

Страница 13: ...GROUND 2 FWDPOWER OUT analog 0 to 4V Adjustable 3 RFLPOWER OUT analog 0to4V 4 PAV OUT analog 0to4V 5 PA I OUT analog 0to4V 6 FAULT OUTdigital Output low in Fault condition adjustable by PgD setting 7 N C No connection 8 EXCITERAPC INPUT Ext signal for power limitation set by FWD AGC pot 9 RFMUTE INPUT Short to ground to operate tied to 14 10 INTLKCOM OUT Relay contacts COM 11 INTLKNC OUT Relay con...

Страница 14: ...susedtointerfacewithacomputerRS232port Itcanalsobeusedtoremotely setoperatingfrequencyandRFpowerleveloftheexciter seeattachment1onpage3 7 Followingdescribesthefunctionofeachpinonthisconnector Type DB9female 1 NC 2 TX_D 3 RX_D 4 Internallyconnectedwith6 5 GND 6 Internallyconnectedwith4 7 Internallyconnectedwith8 8 Internallyconnectedwith7 9 NC 1 6 ...

Страница 15: ...inputs with the built in stereo generator The internal stereo generator can be turned on or off in the field Inaddition anoptionalAES EBUmoduleisavailablefordigitalaudioinputcapability Inkeepingwiththedesignphilosophyofmodularityandmaintainability Micromaxuseseasilyremovable and serviceable subsystems List of subsystems is outlined in section 1 6 1 3 Physical description Micromaxiselectricallyandm...

Страница 16: ...alACinput 80 260VAC switchingpowersupply The RF output module is totally broadband across the FM band and is capable of delivering RF output power of up to 30 Watts TechnicalspecificationsoftheMicromaxisshowninTable1 1 1 5 Simplified block diagrams Micromaxiscomposedofmodularsubsystemsthatareeasilyremovableandserviceable A simplified block diagram of how all the subsystems are interconnected is sh...

Страница 17: ...HarrisMicromaxFMExciter System Overview REV1 01 12 2007 1 3 WARNING Disconnect primary power prior to servicing FIGURE 1 1 FrontandRearViews ...

Страница 18: ...er modulation Spurious and Harmonics suppression Meets or exceeds FCC and CCIR standards typical 75 dBc Modulation capability Meets or exceeds FCC and CCIR standards typical 240khz MPX Composite mono 210 KHz Stereo Asyncronous residualAM 60 dB wrt 100 peak AM Syncronous residualAM 50 dB wrt 100 peak AM with 75 kHz deviation 400Hz A C power supply 80 V 260 V full range D C power supply 28 V Power c...

Страница 19: ...cy response 0 5 dB 20Hz 15Khz Total harmonic distortion THD 0 08 MPX operation composite S N 70 dB wrt 75 kHz measured in the band 30 Hz 20 kHz 50 us deemph RMS detect MPX amplitude frequency response 0 3 dB 30 Hz 53 KHz 0 3 dB 53 KHz 100 KHz MPX total harmonic distortion THD 0 08 Stereo separation 55 dB typ 60dB with external stereo generator Stereo operation S N FM Stereo 70 dB wrt 75 kHz measur...

Страница 20: ...ING Disconnect primary power prior to servicing HarrisMicromaxFMExciter System Overview REV1 01 12 2007 FIGURE 1 3 BlockDiagram ANTENNA MAIN CARD CONTROLLER AES EBUCARD OPTIONAL 30W RF PA POWER SUPPLY AUDIO IN ...

Страница 21: ...HarrisMicromaxFMExciter System Overview REV1 01 12 2007 1 7 WARNING Disconnect primary power prior to servicing MAIN CARD CONTROLLER 30W RF PA POWER SUPPLY FIGURE 1 4 LocationofSubsystems ...

Страница 22: ...1 8 WARNING Disconnect primary power prior to servicing HarrisMicromaxFMExciter System Overview REV1 01 12 2007 ...

Страница 23: ...ooperatetheexciterandcoversthefollowing topics Turningonthetransmitter 3 2 AdjustingRFpoweroutput 3 3 Operatingfrequencyselection 3 4 Adjustingmodulationdeviationlevel 3 5 FrontpanelLCDdisplaymenudescription 3 6 3 2 Turning on the unit Priortoturningontheexciter makesurethattheunitisinstalledasoutlinedinSection2ofthismanual Turnontheexciterusingtheon offswitchonthefrontpanel Turnon offhere ...

Страница 24: ...tput Indefaultmode frontLCDscreendisplaysforwardpoweroutputandmodulationlevelasfollows To adjust power press the KNOB for approximately 2 seconds until the display changes to SET mode as shown below When the display changes to the SETmenu release the KNOB Then turn the knob to raise and lower the RF output power to desired level ...

Страница 25: ...erating frequency selection To select operating frequency first press the KNOB to go to SELECTION menu as shown below Then from this menu turn KNOB to move the cursor to SET menu and then press knob to enter SET menu This will show the following screen SETmenu Turn knob so the arrow is next to F1 frequency cursor ...

Страница 26: ...esired frequency is displayed on the screen press the knob to change to the new frequency 3 5 Adjustingmodulationdeviationlevel Modulationleveladjustmentsareontherearpanelnexttoeachaudioinput Adjustmodulation deviationlevelsusingasmallscrewdriverasshownbelow Onfrontpanel 100 modulationisindicated whenthebargraphonthedefaultmenuisequaltothe5verticaldotsondisplayasshownbelow MPX composite leveladjus...

Страница 27: ...tpanelLCDdisplaymenudescription FrontpanelLCDdisplaydisplaysalloperatingparametersoftheMicromaxFMExciter Thismenucan benavigatedusingtheknoblocatednexttotheLCDdisplay Belowisamapofthemenusavailableonthe display Descriptionsofthepoweradjustment menu2 andfrequencysetting menu7 menusareexplainedin sections 3 3 and 3 4 ...

Страница 28: ...example ifPgDissetat50 logiclevelonpin7willchangestate highorlowdependingonjumpersettingsonthe telemetryboard whenforwardpowerisabove15Watts 3 6 2 Powermenu menu5 Thismenuindicatesforwardandreflectedpoweroftheexciter 3 6 3 Poweramplifier menu6 ThismenuindicatesthePAvoltage PAcurrent PAefficiencyandPAtemperature 3 6 4 Miscellaneous menu menu 8 Thismenuallowstochangetheaddressoftheexciter sIICbusadd...

Страница 29: ... 2 OpenupWindowsHyperterminalonthecomputer 3 SelectConnectusingCOMx yourserialorRS 232port 4 SelectBPS 19200 2400 4800 9600willalsowork DataBits 8 Parity None Stop Bits 1 FlowControl none withouthandshake 5 Connect computercomporttoRS232portonexciter 6 FORFREQenterFR 98 000 enterfreqinformatxxx xxx FOR POWER LEVEL enter PWR075 100 30 Watts 7 Ifitisreceivedcorrectly theexciterwillgiveanechotothecom...

Страница 30: ...3 8 WARNING Disconnect primary power prior to servicing HarrisMicromaxFMExciter Operation REV1 01 12 2007 ...

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