Shure J4 Manuale Utente

1Wireless MicrophonesAn Overview for Local 16 EmployeesByLisa Woodward

10Antennae Placement• Maintain a line- of- sight between the transmitter and receiver antennas.• Maintain a distance of at least 10 ft between the tra

11Antennae Placement continued• Avoid placing antennae where metal or other dense materials may be present.• Avoid placing the receiver near computers

12Antennae Dividers or Distros • Allows several receivers to use just 2 antennae.• Connect the antennae to the input of the distro.• Connect the anten

13Antennae Distros continued• Terminate unused outputs with 50 ohm BNC terminators (but not inputs!).• Be sure to check that frequency range is compat

14Arrow points to where frequency range information is located on the Sony WD-820.

15Multiple dividersNotes from the manual on Sony WD-820A:Only 2 or 4 receivers can be connected to the divider.Do not exceed the 300 W rating of the A

16Connecting to the Sound System

17Gain for Receivers• Mic/line level– Shure “mic/line” switch in the rear– Sony “level” switch –20 on the front• Output gain knob all the way clockwis

18Sony “Mixing” Switch

19Programming ReceiversShure UHF and Sony UHF 800

2RF Basics•Transmitter• Receiver• Carrier Wave• FM-Frequency Modulation• Frequency Range–VHF–UHF• Diversity• Intermodulation• Squelch• Tone Key and Di

20Programming Shure ReceiversSource: uhf_en.pdf at www.shure.comProgram Shure UHF receivers by hitting the “menu” button. Press the “+” or “-” keys to

21Programming Sony ReceiversProgram the Sony UHF 800 receiver by holding down the “set” button and then hitting the “group” button.Each time you hit t

22Choosing Frequencies

23Frequency BandsFrequency Band Number Classification Abbreviation30 - 300 Hz 2 Extremely Low Frequencies ELF300 - 3000 Hz 3 Voice Frequencies VF3 - 3

24Frequency Ranges of Shure UHF seriesSource: http://www.Shure.com28-32554-584J446-50662-669M451-54692-716UB66-69782-805UATV StationsFrequency rangeSh

25Frequency Ranges of Sony 800 seriesSource: http://bpgprod.sel.sony.com/proaudio/index01.htm68-69794-806TV 6866-67782-794TV 6664-65770-782TV 64TV Sta

26channel Frequency (MHz) channel Frequency (MHz) channel Frequency (MHz)2 54-60 25 536-542 48 674-6803 60-66 26 542-548 49 680-6864 66-72 27 548-554

27*Currently allocated for Radio Astronomy only.TV Frequencies in the USchannel Frequency (MHz) channel Frequency (MHz) channel Frequency (MHz)2 54-60

28*Currently allocated for Radio Astronomy only.Bay Area TV and Sony/Shure frequencieschannel Frequency (MHz) channel Frequency (MHz) channel Frequenc

29Shure M4 exampleSource: http://www.Shure.com

3Setting up a RF mic system• Check the gear• Set up receivers• Place antennae and cable to receivers• Connect audio output to sound system• Choose and

30Choosing Clean Frequencies• Manually scan through frequencies• Contact other operators• Use the same group for all frequencies• Frequency separation

31Groups, Channels and TV stations on Shure and Sony• Both Shure and Sony group frequencies that do not intermodulate. Each group is a collection of c

32Master Groups• The master groups are groups of channels that access every frequency available on the device.• Shure master groups are designated by

33Example of Cross FrequenciesA1/1 66-1 782.125 7-1A1/2 66-2 782.250 A1-6A1/3 66-3 782.375 66/67 13-1A1/4 66-4 782.500A1/5 66-5 782.625 66/67 11-1 3-1

34Transmitters and Mics

35Programming Shure transmitter:a. Press and hold down the MODE button until only the Group number is displayed,b. Press the SET button to increment t

36Shure TransmittersStart attenuator at –6Start with gain all the way down

37Power Lock and Frequency Lockon Shure Transmitters• Power Lock :– Press and hold the SET button, then press and hold the MODE button. Hold both keys

38Programming Sony transmitter WRT-820A:a. With a small tweeker or pin, push down the indented SET button while switching on the belt pack. b. Press t

39Transmitter Gain• Wireless mics use compander circuitry to compress and expand the audio signal.• To maximize the compander circuit set the transmit

4Antennae and Cable

40Lavalier Mics• Mic selection– Cardioid: Shure mx185– Hyper Cardioid: Shure mx184, sennheiser 104– Omni: Shure mx183, sennheiser mke2, countryman tra

41Polar Patterns of Mics

42Sennheiser Lavalier Micsmke 104mke 2Source: www.sennheiserusa.com

43Countryman ISOMAXSource: Countryman website http://63.194.67.202/Countryman ISOMAX EMW omni lavalier mic

44Check for Failures• Windscreen• Mic Capsule• Exercise the connections of both mic and antennae• Seat batteries firmly or tape them in• When using “c

45Mic and Belt pack Placement• Have talent remove badge and/or jewelry that may hit mic• Clip mic just under tie in the center of the body• Some clips

46Batteries• Count the battery inventory at load in and estimate how many you may need for the run.• Use fresh batteries for every show. – Remove all

47Other TopicsShure Scanning Software

48Shure UA888The Shure UA888 is a network interface for the Shure UHF receivers. Connect all the receivers network plugs to the UA888 and connect the

49UA888 Software

5CableAlways use 50 ohm cable with radio microphone systems.

50UA888 Software

51Resources on the Web• Audio-Technica http://www.audio-technica.com/• Sennheiser http://www.sennheiserusa.com/• Shure Brothers http://www.shure.com/•

6Cable Type and Length150’75’FOAM RG-8BELDEN 991396’48’QUALITY RG-863’31’LOW COST RG-848’24’QUALITY RG-5830’15’LO COST RG-5850% RANGE REDUCTION30% RAN

7Shure UA830• Antennae amp• Up to 25’ use the 3 dB gain• Up to 50’ use the 10 dB gain• May gang two together for more than 50’• No more than two gange

8Directional AntennaeLook for the frequency range of the antennae.Directional antennae pick up in a cardioid pattern. Aim antennae at the receivers. U

9Look for the frequency range of the antennae.Arrow shows where the frequency range information is located.