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wl83
User Manual
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Shure wl83, w10bt User Manual

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OPERATORS MANUAL
W20R
W10BT
WL83
W10BT BODY-PACK TRANSMITTER
W20R
WL83 LAVALIER MICROPHONE
RECEIVER
W10BT TRANSMITTER
ANTENNA: This is a flexible, 1/4-wave vertically
polarized antenna approximately 30 cm (12 in.) in length and permanently attached to the bottom surface of the transmitter. For proper operation, the antenna must be
in the vertical position; it cannot be coiled or bundled.
BATTERY (not supplied): Only alkaline (Duracell
MN1604 or equivalent) or heavy-duty nickel-cadmium (8.4-volt) transistor-radio-type batteries should be used. A fresh alkaline battery should provide approximately 8
hours of operation, and a recharged nicad should pro­vide 1-1/2 to 2 hours.
BATTERY COMPARTMENT: Slide the cover down to expose the battery compartment. Make certain the bat­tery is installed using the proper positive (+) and
negative (-) polarity. BATTERY TEST Push-Button Switch:
the condition of the installed battery when the power switch is on. The BATTERY TEST LED Indicator will fail to light if the battery is weak or dead (or if the POWER switch is off). Note that if the battery is tested periodical-
ly during use, an impending battery failure can be detected: the LED will fail to light at 7.25 volts. At that time, approximately 1 hour of alkaline battery life is left.
BELT CLIP: Permits convenient attachment to the user’s belt, waistband or other clothing.
GAIN HI/LO Slide Switch: Selects the High Gain posi­tion to boost the signal of low-output microphones, or
Permits checking
the Low Gain position for high-output microphones or musical instruments. Allows maximum modulation without clipping.
MICROPHONE JACK: This is a 4-pin, miniature, male Tini Q-G connector designed to mate with Switchcraft TA4F or equivalent connectors. A built-in 20-kilohm load resistor provides proper matching for dynamic, ribbon or condenser microphones. Connector pin 2 supplies +5-volt bias voltage for condenser microphone phan­tom powering. In addition to microphones with TA4F connectors, Shure has available an adapter cable with a standard XLR female connector for use with conven­tional microphones (WA310), and a musical instrument adapter cable with a 1/4-inch phone plug on the equip­ment end (WA300).
MICROPHONE LEVEL Rotary Control: In conjunction with the GAIN HI/LO switch, this control provides addi­tional audio level adjustment. A small screwdriver is supplied to make adjustments.
MICROPHONE ON/OFF Toggle Switch: Permits the user to “mute” the microphone without turning the transmitter off. This avoids the “pop” that may accom­pany power turn-on and turn-off, and generally prevents pickup of unwanted signals by the receiver.
POWER ON/OFF Slide Switch: Applies power to the transmitter circuitry. The switch is a low-profile type to minimize accidental turn-off.
5
W20R RECEIVER
FRONT PANEL
POWER Push-Button Switch: Applies power from the external power converter or other well-filtered 13.5 Vdc (200 mA) sources to the receiver circuitry. An adjacent green POWER LED Indicator remains on while power is applied. (NOTE: a 115 Vac, 60 Hz source, 13.5 Vdc is present at the power converter output.)
AUDIO LEVEL Display: This IO-LED bar display in­dicates the relative system modulation. Normal opera­tion is shown by illumination of the green portion of the display, with occasional excursions into the yellow. If frequent or constant yellow or red indications are observed, the transmitter MICROPHONE LEVEL control should be lowered (counterclockwise), or the Gain switch set to the Lo position. The display is calibrated in volume units (VU).
With the power converter connected to
RF SIGNAL LED Indicator: This yellow indicator lights
to show that the receiver is picking up the transmitted signal. Note that the LED is not an indicator of signal strength (the LED will light through a range of marginal through strong signal conditions), but a flickering LED generally indicates barely acceptable operation, and no indication means that no signal is being received. The receiver contains a squelch circuit to eliminate un­wanted signals or noise in the absence of wireless transmitter signals. The squelch circuit is not user­adjustable; it is preset to an optimum threshold setting of 1.0 µV, minimizing setting errors and difficulties in returning the squelch to its original setting. The yellow RF LED does not light when the squelch circuit is ac­tivated.
REAR PANEL
ANTENNA UHF-Type Connector: Provides for connec-
6
SETUP AND CONNECTIONS
UNPACKING
Unpack all units and parts of the Wireless Microphone System. If possible, retain packaging in the event of returning a unit for repair. Check all boxes and inner packaging; if any damage or shortage is discovered, refer to the Warranty Service section of this manual.
RECEIVER
Place the W20R receiver in its operating location and connect the supplied power converter to the rear-panel POWER Jack. Connect the power converter to a 105 to 125 Vac, 60 Hz power source.
Attach the 1/4-wave whip antenna to the receiver ANTENNA connector. Make certain it is pointed upward. IMPORTANT: The receiver antenna should be within the line-of-sight of the transmitter’s operating area. Obstructing or reflecting objects will degrade wireless microphone performance.
If desired, the receiver can be mounted in a rack panel kit (WA210) for mounting in a standard 19-inch audio equipment rack.
For Microphone Level Use
Obtain an XLR-type balanced low-impedance audio
connecting cable and connect it between the W20R MIC OUTPUT Connector and the mixer or amplifier microphone-level input (see Figure 1). Adjust the levels as described under Level Adjustment.
RECEIVER-MIXER CABLE
FIGURE 1
TRANSMITTER
With the transmitter POWER ON/OFF Switch in the OFF position, slide the battery compartment access cover down and off the transmitter case. Insert a new 9-volt transistor-radio-type battery (Duracell MN1604 or
equivalent) in the compartment. Observe the proper
polarity: the large (negative) terminal in the large chan-
nel and the small (positive) terminal in the small channel. Operation with a full charged, heavy-duty, 8.4-volt nickel­cadmium rechargeable battery is also permissible.
IMPORTANT:
nickel-cadmium battery; its 7.2-volt output will operate the transmitter for about 15 minutes. Carbon-zinc bat­teries will also result in diminished operating life (about
1 hour).
Microphone Connections
The Shure WL83 lavalier condenser microphone or similar microphones with identical wiring and a Switch­craft TA4F type connector can be plugged directly into the transmitter microphone jack. The WL83 will operate using the transmitter’s regulated +5 Vdc available on pin 2 (see Figure 2). Self-powered (battery) condenser microphones can be used with the transmitter only if they can be operated in an unbalanced mode (one side grounded). Other non-self-powered condenser microphones may require special wiring; contact Shure’s Service Department for further information. Phantom-powered condenser microphones will not
operate with the W10BT.
A high- or low-impedance dynamic or ribbon
microphone with pin 2 output can be directly connected
to the transmitter using the supplied WA310 microphone adapter cable. The cable has a 3-socket XLR connector on the microphone end and a Switchcraft TA4F connec­tor on the transmitter end, and is wired for unbalanced
low-impedance operation only (see Figure 2). Shure high­impedance microphones are not wired to operate with
the transmitter. If a Shure high-impedance microphone
must be used, pins 2 and 3 should be reversed (by
qualified service personnel). Using a low-output, low­impedance dynamic lavalier microphone such as Shure’s SM11 may require raising the mixer input gain appreciably, which in turn may result in an increase in noise and signal “pumping.”
Instrument Connections
To connect the transmitter to a guitar or other musical
instrument pickup, obtain an instrument adapter cable
such as Shure’s WA300. This cable has a 1/4-inch phone
plug on one end and a Switchcraft TA4F on the other
(see Figure 2), and should function normally with any
high-impedance instrument pickup.
Battery Check
Turn the transmitter power on and depress the BAT-
TERY TEST Switch. The adjacent LED should light, in-
dicating adequate transmitter input voltage. If the LED does not light, the alkaline battery voltage has dropped
Do not use a “conventional” 9-volt-sized
8
TRANSMITTER CONNECTIONS AND
ACCESSORY WIRING
FIGURE 2
below 7.25 volts and the battery should be replaced or recharged (nicad only).
If the battery is tested periodically, the failure of the LED to light indicates approximately one hour-of battery life left (alkaline only).
Polarity
With the Shure WL83 or a Shure low- or high­impedance XLR-connector microphone connected through a WA310 cable, positive pressure on the microphone diaphragm results in positive voltage on pin
2 with respect to pin 3 of the receiver OUTPUT connec­tor. Negative voltage applied to the tip of a WA300 cable will result in the same output polarity.
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SETTING GAIN LEVELS
With the system in place and connected, all units can now be turned on and the levels set to their optimum positions.
TRANSMITTER
Place the POWER Switch of the W20R receiver in the ON position. The green POWER LED will light.
Turn the transmitter POWER ON/OFF Switch on. Observe the receiver yellow RF SIGNAL LED. It should be continually lit, indicating adequate RF signal strength for good transmission. If the LED continually
flickers or does not light, consult the Troubleshooting section of this manual.
Turn the transmitter MIC ON/OFF Switch to the ON position. With a microphone connected to the transmit­ter, the receiver AUDIO LEVEL display will now respond to varying sound levels.
Set the transmitter GAIN Switch as dictated by the type of input: Hi for low-impedance microphones; LO for high-impedance microphones and instrument pickups.
Sound Pressure Levels
Normal. The transmitter MIC LEVEL Control has been
factory-set to provide optimum audio modulation at the
receiver, as indicated by LED illumination in the -7 to 0 range (see Figure 3). Readings in this area will yield the highest dynamic range without overload and resulting
distortion.
HIGH SPL GAIN ADJUSTMENT
FIGURE 4
may require an increase in the transmitter gain setting. To correct for a low-level condition, turn the MIC LEVEL Control up (clockwise; see Figure 5) until a proper (-7 to
0) LED reading is obtained.
AUDIO LEVEL DISPLAY
FIGURE 3
High. For high sound pressure level (SPL) applications
such as loud singing or musical instruments, the preset transmitter level may be too high. To avoid this overload and potential distortion condition, use the supplied
screwdriver to turn the transmitter MIC LEVEL Control
down (counterclockwise; see Figure 4). This adjustment should be made under the expected operating condi­tions, that is, with the high SPL singer or musical instru-
ment in use at the microphone. Turn the control down until the optimum (-7 to 0) readings are obtained.
Low. Low SPL applications such as soft-spoken in­dividuals or conditions where the microphone must be at a greater-than-normal distance from the sound source,
LOW SPL GAIN ADJUSTMENT
FIGURE 5
RECEIVER
The rear-panel receiver OUTPUT can be adjusted using the MICROPHONE OUTPUT LEVEL Control. In this way, the wireless system output can be made identical to that of a conventional wired microphone, avoiding extreme differences in input level settings. Turning the MICROPHONE OUTPUT LEVEL Control counter­clockwise decreases the output level, and turning it clockwise increases the output.
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CHECKLIST/OPERATION
CHECKLIST
The following checklist shows the status of your wireless microphone system at this point. If the follow­ing steps have been performed and the expected results obtained, the system can be put in operation.
Is the receiver properly located?
o
Is the power converter connected to the receiver? Is
o
ac power present?
o
Is the antenna connected to the receiver?
o
Is the receiver connected to the rest of the sound system?
o
Is a fresh battery installed in the transmitter?
o
Is a microphone of the proper impedance and wiring being used?
Is the microphone or instrument connected to the
o
transmitter?
o
Has the transmitter gain been set properly?
o
Have the transmitter and transmitter antenna been properly positioned?
o
Is the receiver output level properly set?
OPERATION
Turn on the transmitter and receiver POWER
1.
Switches.
2.
Make sure the transmitter MIC ON/OFF Switch is on.
3.
Talk into the microphone (or play the connected
musical instrument) and observe the receiver display for proper audio and RF indications.
4. Continue talking or playing and move around the performing area. In each area, observe the receiver
displays and make sure the RF signal strength is adequate.
In most cases, the problem of weak RF signal strength
is also indicated by audible evidence: either continuous or intermittent, or noisy, distorted operation. The condition is generally caused by poor antenna location, RF signal blocking, or operation beyond the system capability. Refer to the
Troubleshooting section for remedies.
Normal operation is shown by steady illumination of the yellow RF SIGNAL LED. A weak RF signal is in­dicated by intermittent lighting of the LED, as well as by audibly poor sound quality.
Feedback-the annoying howl or squeal heard in the sound system- is as much a problem in wireless microphones as in wired mics. Checking microphone operation throughout the performing area will probably uncover any locations that are prone to audio feedback. If the problem cannot be solved by a slight lowering of
the receiver output level or the associated amplifier gain,
relocation of the speakers or possibly professional
equalization of the sound system is recommended.
signal dropout,
IMPORTANT
Every wireless microphone installation is a unique situation, and can present a variety of problems. Never attempt a live performance without a “walkthrough” first. And if major changes (fur­niture, scenery, etc.) were made since the walkthrough, check the wireless microphone operation again.
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SPECIFICATIONS
SYSTEM RF Carrier Frequency
150 to 216 MHz (10 frequencies between 167.875 and
183.0 MHz offered; others available)
Frequency Stability
0.005%, Crystal-Controlled
Ultimate Quieting (ref. 12 kHz deviation)
>90 dB at 30m (100 ft); 60 dB, line-of-sight at 402m
(1/4 mi.)
Modulation
± 12 kHz deviation compressor-expander system with
pre- and de-emphasis
Distortion (ref. 12 kHz deviation)
Less than 0.3% THD, 50-15,000 Hz
Dynamic Range
98 dB A-weighted 92 dB unweighted
Audio Frequency Response
50 to 15,000 Hz, ± 1 dB
Audio Polarity
Positive pressure on microphone diaphragm results in positive voltage on pin 2 with respect to pin 3 of OUTPUT connector (with Shure WL83 or Shure low- or high-impedance, XLR-connector microphone through WA310 cable); negative voltage applied to tip of WA300 cable connector results in same output polari-
ty
Temperature Range
Receiver . . . . . . . . . . . .
Transmitter (alkaline batt.) . 0° to 38°C (32° to 100oF) Transmitter (mercury batt.) Transmitter (carbon-zinc) . . . 7° to 32°C (45° to 90°F)
Certification
Type-accepted under FCC Parts 90 and 74 (FCC ID DD48NJW20R)
RECEIVER RF Sensitivity
Less than 0.5 µV for 12 dB SINAD
Image Rejection
At least 75 dB
Spurious Rejection
At least 80 dB
Squelch Quieting
125 dB
Squelch Threshold
Internally preset to 1.0 µV
Output
-20 dB across 200 ohms maximum (mic level ad-
justable)
- 18° to 54°C (0° to 130°F) .
4° to 54°C (40° to 130°F)
Antenna Input Impedance
50 ohms nominal
Antenna
1/4 wavelength, 457 mm (18 in.) whip, UHF connector
Power
13.5 Vdc nominal (negative ground); 200 mA external power converter supplied
Dimensions
42.8 mm H (plus feet) x 190 mm W x 173 mm D (1-11/16 in. x 7-1/2 in. x 6-13/16 in.) (depth is 190 mm–7-1/2 in. including controls and connectors)
Weight
723 grams (1 lb 9-1/2 oz)
TRANSMITTER
RF Power Output
50 mW maximum; 30 mW typical
Modulation
54F3 ± 12 kHz deviation, 50 µsec pre-emphasis
Modulation Limiter
internal compressor
Input Impedance
Actual: microphone; 91k, pin 4 open for microphone or instru-
ment pickup
Gain Switch
High position . . . . . . . .
Low position . . . . . . . . .
Gain Adjustment Range
Low Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 dB
High Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 dB
Antenna
Attached, 305 mm (12 in.), omnidirectional, flexible wire
Power
Battery Type . . . . . . . . .
Battery Life . . . . . . . . . . 6 to 8 hours typical
Current Drain . . . . . . . . 35 mA typical
Dimensions
102 mm H x 69.8 mm W x 25.4 mm D (4 in. x 2-3/4 in. x 1 in.) (not including antenna, controls and belt clip)
Weight
113 grams (4 oz); 170 grams (6 oz) with battery
16k (20k dc), pin 4 wired to pin 3 for WL83
0.0065 Vrms required for 100% modulation
0.065 Vrms required for
100% modulation
9-volt alkaline (NEDA
1604A); 8.4-volt nicad op-
tional (alkaline); 1.5 to 2 hours
typical (8.4-volt nicad; per charge)
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ANTENNAS
TRANSMITTER
The transmitter antenna is a permanently attached, flexible wire, 1/4-wave antenna. It has an omnidirectional transmission pattern (equally effective in all directions) and is designed to operate in a vertically polarized mode. This means that the antenna should hang downward dur-
ing operation; coiling or wadding it to minimize visibility
will reduce the system’s operating distance.
RECEIVER
The receiver antenna is a single-section, 1/4-wave whip antenna approximately 457 mm (18 in.) in length.
Like the transmitter antenna, the receiver antenna has an omnidirectional pickup pattern and are vertically polarized. Vertical mounting is a requirement for op­timum pickup.
For “problem” may be obtained using an optional 5/8-wave whip anten­na (WA250). Up to 3 dB gain increase can be realized with this antenna over the standard 1/4-wave.
Also available for use with the 5/8-wave antenna are a
7.6m (25 ft) coaxial cable (WA280) for remotely locating the antenna (necessary where the receiver is to be mounted in a shielded rack mount enclosure or other poor RF location), and a wall-mount bracket (WA260) for affixing the antenna to a variety of surfaces. The 5/8-wave antenna can also be mounted on a conven­tional microphone stand using a microphone swivel adapter such a the Shure A25B or A25C.
RECEIVER-TRANSMITTER DISTANCE
Observing the following rules regarding transmitter to receiver antenna distance will yield the best results possible.
Keep the transmitter to receiver antenna distance as short as possible. As the distance increases, the transmitted signal is weaker (see Figure 6).
Make certain the signal path between the transmitter
and the receiver antenna is unobstructed. The transmitter wearer should be able to visually locate the receiver antenna at any time (see Figure 7).
Try to avoid operating the system through or around walls, ceilings, metal objects, etc. The usual result is reduced range and performance, and the signal reflections off metal obstructions will not only cause reduced signal, but will introduce the problem of multipath distortion (see Figure 8).
installations, improved performance
TRANSMITTER-RECEIVER DISTANCE
FIGURE 6
LINE-OF-SIGHT TRANSMISSION
FIGURE 7
OBSTRUCTION EFFECTS
FIGURE 8
13
BATTERIES
Careful transmitter battery selection, installation, use and care will help avoid problems in wireless microphone use. The most dependable, long-lived bat­teries at this time are the manganese-alkaline, or alkaline, types. In addition to offering the longest ex­pected operating life, they are commonly available.
One small word of caution about alkaline batteries: they are not all the same size. Make certain the battery you buy will make contact inside the battery compart­ment.
Nickel-cadmium (nicad) batteries can save money through their rechargeability, but the tradeoff is in shorter expected life per charge. In addition, forgetting to recharge can be disastrous.
Another major consideration in nicads is that of operating voltage. The “heavy-duty” 8.4-volt nicads are satisfactory for transmitter use, but the “9-volt-size” nicads commonly found in stores are only 7.2 volts and will not provide satisfactory wireless performance.
Mercury batteries in the “g-volt-size” are also actually
8.4 volts. However, their discharge characteristics are such that they will yield between 10 and 15 hours of operation with the transmitter.
Carbon-zinc batteries are the least useful for transmit­ter operation. Their low cost is more than offset by their extremely short operating and shelf life. Although the “heavy-duty”’ (HD) carbon-zinc types offer better low­temperature performance and service capacity at moderate to high current drain, they will not offer ap­preciably better transmitter performance than standard carbon-zinc batteries.
Although battery operation is inhibited at low temperatures, storing batteries at low temperatures will increase their shelf life. They should be sealed in bags and, when ready for use, allow to warm up to room temperature (never heated!). Cold-stored batteries should be used as soon as possible after bringing to room temperature.
Battery life is shortened by high-temperature storage such as on amplifiers or in vehicles exposed to direct sunlight.
RECOMMENDED RANGES
Alkaline
Temperature
Shelf Life (room 30 months 30 months temperature; to 80% of capacity)
0° to 38°C
(32° to 100°F)
Mercury Zinc Nicad
4° to 54°C 7° to 32°C (40° to 130°F) (45° to 90°F)
Carbon-
6 to 12 months
-20° to 45°C
(-4° to 113°F)
10 to 80 days
The battery should be removed if the transmitter malfunctions, or if it is to be stored for a long period. Most batteries have a protective jacket, but partly or completely exhausted batteries are more prone to leakage.
Do not attempt to recharge replaceable (primary) bat­teries using “chargers”, heat or other methods. This may cause leakage or explosion. Do not disassemble bat­teries or dispose of them in fire.
BATTERY TYPE
Alkaline
Mercury
Nickel-Cadmium
Carbon-Zinc (Heavy Duty)
MANUFACTURER
& NO.
Bright Star 7590 Duracell MN1604 ESB A1604 Eveready 522 IEC 6LF22 NEDA 1604A Panasonic 6AM6 Radio Shack
23-553 Ray-O-Vac A1604 U.S. Military
BA3090 Varta 4022
Burgess H146X Duracell TR146X Eveready E146X NEDA 1604M Panasonic TR146 US. Military
BA1090/U
SAFT PS-9 Varta TR7/8
Duracell M1604 Eveready 216 Ray-O-Vac 1604 Radio Shack
23-464
Duracell
M1604HD Eveready 1222 Ray-O-Vac D1604 Radio Shack
23-583
VOLTS
9.0
8.4
8.4
9.0
9.0
EXPECTED LIFE
6 to 7 hours
10 to 15 hours
1-1/2 to 2 hours per charge
1 hour
1 hour
14
TROUBLESHOOTING
If you encounter any problems in the operation of your Shure Wireless Microphone System, first make certain
you’ve followed the ABC’s of proper wireless microphone operation:
A
ntennas -
Battery - Make certain the transmitter battery is fresh and of the right type. And while you’re at it, make cer-
C
ontrols - All receiver and transmitter controls should be properly set for the desired operation. Recheck all
If you still have a problem, follow the advice below. If you’re unable to solve the problem, contact your dealer or
Shure’s Service Department.
Movement around the performing area produces intermittent “swooshing” sound or complete loss of signal (dropout).
Audio signal sounds distorted at medium to high
input levels. Receiver picks up other (interfering) radio signals.
Audio signal contains undesirable whistling or
chirping sounds, or sounds garbled.
Audio signal contains undesirable hissing sounds. One wireless microphone produces a lower output
than other wireless microphones in the same sound system.
Movement around the performing area produces an undesirable squeal or howl (feedback).
Maximum operating distance (transmitter to receiver
antenna) seems less than when system was new. Short transmitter battery life.
Receiver not functioning.
Make certain the transmitter antenna is dangling vertically. Make certain the receiver antenna is properly connected, located and mounted.
tain the receiver power converter is connected to a functioning power source.
settings for correct system setup.
PROBLEM
Make certain the antenna is properly connected, mounted and positioned for optimum reception. Mini­mize transmitter-to-receiver distance.
Reduce transmitter audio gain.
Make certain transmitter is turned on. If problem per­sists with transmitter on, it may be necessary to change system operating frequency. (Another transmitter, possibly a VHF-TV transmitter, may be operating at the same frequency.)
Two transmitters may be operating simultaneously
on the same frequency. Turn one transmitter off. If problem persists, may be caused by other radio signals (see above).
Transmitter and/or receiver gain may require
increase (setting is too low).
Relocate the speakers. Reduce the receiver and/or and/or sound system gain. (Professional equalization may be required.)
Transmitter antenna may require replacement.
Receiver antenna may require relocation. Make certain replaceable batteries are alkaline
(Duracell MN1604 or equivalent). Make certain
rechargeable batteries (nicads) are 8.4-volt types. Make certain receiver power converter is connected
to functioning ac source.
SOLUTION
REMEMBER:
instructions carefully before contacting Shure for service.
Many apparent problems are due to improper setup and operation. Make certain you have followed
15
Make certain internal 0.5A, 250V, 3AG fuse is not blown. (Disconnect from ac source, remove four side, two front and two back screws for access to fuse.)
ACCESSORIES
The following Shure Wireless System accessories are
available through your Shure dealer. (Replacement parts
can be ordered from Shure’s Service Department; infor-
mation is available from Shure’s Service Department.)
MODEL WL83 LAVALIER CONDENSER MICROPHONE
– This is a tiny electret condenser microphone design-
ed for high-quality sound reproduction in broadcasting, film and sound reinforcement applications. The WL83 plugs directly into the W10BT transmitter, and is sup­plied with a variety of mounting options.
MODEL WA200 SINGLE RECEIVER RACK MOUNT KIT
– This kit consists of a metal front panel and hardware
for mounting one W20R receiver in a standard 19-in (483 mm) audio equipment rack.
MODEL WA210 DOUBLE RECEIVER RACK MOUNT KIT
– Similar to the WA200, this kit permits mounting two
W20R receivers side by side in a standard 44.5 mm x 483
mm (1-3/4 x 19 in.) rack space.
MODEL WA250 5/8-WAVE WHIP ANTENNA – This
3-section whip antenna is an optional replacement for
the 1/4-wave antenna supplied with the W20R receiver. It
comes with a right-angle UHF adapter.
MODEL WA260 ANTENNA WALL-MOUNT BRACKET –
This bracket is for use with the optional 5/8-wave anten­na. It comes with mounting hardware.
MODEL WA280 COAXIAL ANTENNA CABLE – This
7.6m (25 ft) coaxial cable can be used with either the
1/4-wave or the optional 5/8-wave receiver antenna to locate the antenna at a distance from the receiver.
MODEL WA300 INSTRUMENT CABLE – This is a 1.2m (4 ft), single-conductor, shielded cable with a 1/4-inch phone plug on one end and a Switchcraft TA4F on the other. It is used for connecting the W10BT transmitter to a guitar or other musical instrument pickup.
MODEL WA310 MICROPHONE CABLE – A 1.2m (4 ft),
single-conductor, shielded cable with a 3-socket (female)
XLR connector on one end and a Switchcraft TA4F on
the other. The WA310 is designed to connect the W10BT to a low-impedance dynamic or condenser microphone for unbalanced operation (pin 3 of the XLR connector is
“hot”).
MODEL WA320 AC POWER CONVERTER – This is a replacement for the 120 Vac power converter supplied with the W20R receiver.
MODEL WA330 MICROPHONE CONNECTOR – This
TA4F miniature connector permits microphones such as
the Shure SM10A or SM98 to be connected directly to the
W10BT transmitter.
MODEL WA340 1/4-WAVE WHIP ANTENNA – This is a replacement for the 1/4-wave whip antenna supplied with the W20R receiver.
MODEL WA350 AC POWER CONVERTER – Similar to the WA320, this power converter permits operation at
220 to 240 Vac.
16
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