User's Manual - Crown Broadcast

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RFSCAS/NSpurious productsStabilityStereo PilotStereo separationSubcarrierSuppressionSWRTHDTranslatorSatellatorVSWRWidebandVCORadio Frequency;(1) A specific portion of the electromagneticspectrum between audio-frequency and the infraredportion.(2) A frequency useful for radio transmission(roughly 10 kHz and 100,000 MHz).Subsidiary Communications Authorization; see“subcarrier.”Signal to NoiseUnintended signals present on the transmissionoutput terminal.A tolerance or measure of how well a component,circuit, or system maintains constant operatingconditions over a period of time.See “Pilot.”The amount of left channel information that bleedsinto the right channel (or vice versa).A carrier signal which operates at a lower frequencythan the main carrier frequency and whichmodulates the main carrier.The process used to hold back or stop certainfrequencies.Standing Wave Ratio; on a transmission line, theratio of the maximum voltage to the minimumvoltage or maximum current to the minimum current;also the ratio of load impedance to intended(50 ohms) load impedance.Total Harmonic DistortionA transmitter designed to internally change an FMsignal from one frequency to another forretransmission. Used in conjunction with terrestrialnetworks.A transmitter equipped with an FSK ID option forre-broadcasting a satellite fed signal.Voltage Standing Wave Ratio; see “SWR.”See “Broadband.”Voltage Controlled OscillatorG-4FM30/FM150/FM300 User’s <strong>Manual</strong>
Symbols19–kHzlevel adjustment 5–3phase adjustment 5–3AAC. See Power: inputALC 3–3,3–7,4–7Altitudeoperating range 1–8Amperes PA DC 3–3,3–8AmplifierRF 4–13bias set 5–6Antenna 2–12mismatch 3–3Applications 1–3Audiobroadband 3-5distortion 5–9frequency 5–8high 3–5input connectors 2-13, 4–3input level 1-7, 3–5monitor connections 2–15,4–5performance 5–7pre-emphasis 3–5processing 3–5,4–10wide 3–5Audio processor 4-3adjustments 5–2circuit description 4–3circuit location 6–3indicators 3–5input 3–5reference drawings 6–5BBackuptransmitter use 1–4BandwidthRF 5–8Battery. See power: inputBias set 5–6Broadband. See Audio: broadbandIndexCCablesaudio input 2–13Carrier 4–12,5–8automatic turnoff 2–16,3–8,5–6,5–10frequency 5–8, 5-10Carrier switch 3–4,5–5Channel. See Frequencymain 5–10main into sub 5–10sub into main 5–10Chassiscircuit 4–14Circuit boardsaudio processor 4–3,6–5stereo generator 4–4, 6-5Circuitschassis 4–14display 4–10metering 4–8motherboard 4–8part numbering 4–2power regulator 4–12RF exciter 4–6stereo generator 4–4voltage regulator 4–11Componentsnumbering 4–2Compositeinput 2–14input connection 2–13output adjustment 5–3Connectorsaudio input 2–13audio monitoring 2–15composite in 2–15remote I/O 2–16RF input 2–12RF output 2–12RF output monitoring 2–12SCA In 2–14XLR 2–13, 4–3Cooling Fan 3-3, 3-8control 4-7Coverage area 1-4Crosstalk 1-7measurements 5-9Current limitPA 5-5IndexI-1
Page 2 and 3:
Revision ControlRevisionPrint DateI
Page 4 and 5:
Section 3-Operation 3-13.1 Initial
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Section 6-Reference Drawings 6-16.1
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1.1 Your TransmitterThe FM30, FM150
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1.2.1 Stand-AloneIn the standard co
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1.2.5 SatellatorOne additional opti
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Subcarrier Suppression50dB below ±
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1.4 Receiver SpecificationsMonaural
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2.1 Operating EnvironmentYou can in
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2.2.2 FusesThe fuse holders are loc
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2. Use small flat blade screwdriver
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2.4 Receiver Frequency SelectionIf
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Freq. 74-90 Freq. 88-108 SW1 SW2 Fr
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2.5 RF ConnectionsConnect the RF lo
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2.7 SCA Input ConnectionsYou can co
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2.11 Program Input Fault Time-outYo
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Notes:2-18 FM30/FM150/FM300 User’
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3.1 Initial Power-up ProceduresThes
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3.2 Power Switches3.2.1 DC BreakerT
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3.4 Input Gain SwitchesThe “+6 dB
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PA DC Volts—Supply voltage of the
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4.1 Part NumberingAs this section r
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Q1 (Q2) is a recover/expansion gate
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4.3 RF Exciter CircuitThis circuit
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4.6 MotherboardThe motherboard is t
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4.7 Display Circuit BoardThe front-
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4.9 Power Regulator Circuit BoardTh
Page 56 and 57: 4.13 ChassisThe AC power supply com
Page 58 and 59: When a stereo signal is present, LE
Page 60 and 61: 5.1 Audio Processor Adjustments5.1.
Page 62 and 63: 5.3.2 Modulation CompensatorRefer t
Page 64 and 65: 5.7 Voltage Regulator AdjustmentsJP
Page 66 and 67: 5.10 Carrier FrequencyCarrier frequ
Page 68 and 69: 5.20 38-kHz Subcarrier SuppressionW
Page 70 and 71: 6.1 ViewsGainReduction/ExpansionInd
Page 72 and 73: Notes:6-4FM30/FM150/FM300 User’s
Page 74 and 75: 747455223344557766223344557766Board
Page 76 and 77: Board Layouts and SchematicsIllustr
Page 78 and 79: 232112123Board Layouts and Schemati
Page 80 and 81: Board Layouts and Schematics1 2 3 4
Page 82 and 83: 21122129876543219876543219876543219
Page 84 and 85: 6543211357924683211+8Board Layouts
Page 86 and 87: Board Layouts and SchematicsF1 2 3
Page 88 and 89: Board Layouts and Schematics1 2 3 4
Page 90 and 91: Board Layouts and SchematicsEP1 2 3
Page 92 and 93: Board Layouts and SchematicsF1 2 3
Page 94 and 95: 321321tt97531864213123456xxxxxxxxx1
Page 96 and 97: 7.1 ServiceThe product warranty (se
Page 98 and 99: The following lists describe the sp
Page 100 and 101: AppendixTransmitter Output Efficien
Page 102 and 103: Notes:A-3FM30/FM150/FM300 User’s
Page 104 and 105: AFALCAMBandwidthBCDBFOBNCBroadbandC
Page 108 and 109: DDC. See Power: inputDe-emphasis 2-
Page 110: S (continued)Stand alonetransmitter
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User's Manual - Crown Broadcast

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