Clear-Com WTR-670 User Manual

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Operating Instructions

WBS-670, WTR-670

Professional Wireless Intercom System

Intercom Systems

Thank you for choosing Clear-Com

Clear-Com Intercom Systems would like to take this opportunity to thank you for choosing the Clear-Com

WBS-670 Professional Wireless Intercom System. Many of the features in this product are the result of years of development work with many of the features developed from customer feedback. We hope that your experience with this product is a pleasant one and hope to provide you with a continuing line of Clear-Com products well into the future. In order to get the most out of your new wireless intercom system, please take a few moments to look through this booklet before using the product for the first time.

Clear-Com Intercom Systems

Table of Contents

Introduction...........................................................................1-1

General Description ..........................................................................1-1

System Features .............................................................................1-1

WBS-670 Block Diagram......................................................................1-2

WBS-670 Base Station ..................................................................2-1

Controls and Connections - Front Panel...........................................................2-1

Controls and Connections - Rear Panel ...........................................................2-2

WBS-670 Specifications.......................................................................2-3

WTR-670 Beltpack .....................................................................3-1

Controls and Connections - Top Panel ............................................................3-1

Controls and Connections - Rear Panel ...........................................................3-2

WTR-670 Specifications ......................................................................3-3

Initial Equipment Set-Up ................................................................4-1

Unpacking..................................................................................4-1

Antenna Connections .........................................................................4-2

Antenna Polarization .........................................................................4-2

Distance Between Antennas ....................................................................4-2

Antenna Placement ...........................................................................4-2

Improving Reception/Increasing Range ...........................................................4-4

Base Station Set-Up .........................................................................4-5

Location................................................................................4-5

Power Connection ........................................................................4-5

Transmit Switches ........................................................................4-5

Intercom Switch..........................................................................4-6

Intercom Interface ........................................................................4-6

Auxiliary Input/Output ....................................................................4-6

Beltpack Set-Up ............................................................................4-7

Battery Installation .......................................................................4-7

Antenna Connection ......................................................................4-8

Transmit Mode...........................................................................4-8

Headset Connection.......................................................................4-8

Pre-Walk-Thru Checklist................................................................5-1

System Operation ......................................................................6-1

Frequency Plan Overview......................................................................6-1

Factory-Defined Groups .......................................................................6-1

User-Programmable Groups ....................................................................6-1

System Quick Start ...........................................................................6-1

Base Station Operation.......................................................................6-2

Power..................................................................................6-2

Local Headset ...........................................................................6-2

Beltpack Connect.........................................................................6-2

Intercom................................................................................6-2

Auxiliary ...............................................................................6-2

Display Contrast .........................................................................6-3

WBS-670 Menu Structure.................................................................6-4

Main Screen Flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Power-Up Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Operating Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Beltpack Activity Code Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Group/Channel Select. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Group/Frequency Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Frequency Edit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Scan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

Special Key Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

Copy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

1st Use Default. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

Factory Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

-i-

Table of Contents (continued)

Beltpack Operation.........................................................................6-11

Power/Local Headset Volume ..............................................................6-11

Battery Check ..........................................................................6-11

Talk Button ............................................................................6-11

Microphone Gain ........................................................................6-11

Beltpack Menu Structure ................................................................6-12

Power-Up Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

Group/Channel Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

Transmit Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15

Receive Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

Scan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17

Talk Button Latch on/Latch off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

Special Key Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

1st Use Default. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

Factory Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

System Walk-Thru .....................................................................7-1

Trouble Shooting.......................................................................8-1

Tech Tips .............................................................................9-1

Frequency Interaction .........................................................................9-1

Microphone Gain Adjustment ..................................................................9-1

Battery Information ...................................................................10-1

Intercom System Specifications ..........................................................11-1

Accessories and Replacement Parts ......................................................12-1

Customer Service Information ..........................................................13-1

Certification Information...............................................................14-1

Clear-Com Limited Warranty...........................................................15-1

-ii-

Section

Introduction

General Description

The Clear-Com WBS-670 UHF Synthesized Wireless inter com systems offer the ultimate in reliable, high-performance, high-fidelity full-duplex intercom systems.

The WBS-670 system includes the WBS-670 frequency-agile base station, working with up to four WTR-670 fre quency-agile beltpacks. The WBS-670 base station provides full-duplex communications with the beltpacks.

The WBS-670 system is perfectly suited for stand-alone oper ation, and also can interface with Clear-Com, Audiocom (Telex®), RTS®TW party-line systems, as well as matrix systems and other 4-wire intercom systems systems. In addition to the external intercom systems interfaces listed above, the system provides connections for auxiliary balanced audio input and output.

The Clear-Com WBS series has been designed for reliable, efficient operation. Operating in the 518 to 740 MHz range, the units operate reliably at line-of-sight distances of 1,000 feet. The high efficiency beltpacks provide 12 hours of uninterrupted operation using standard alkaline batteries.

System Features

Frequency-agile base station and beltpacks. No external

•

computer/device required to select frequencies.

Backlit base station LCD allows the user to easily monitor

•

the beltpack’s status as well as change base-station fre quencies.

Scan function on base station and beltpack to automati

•

cally find the best channels on which to operate.

Full-duplex (simultaneous talk and listen) operation.

•

Compatible with Clear-Com, Audiocom®(Telex®), RTS

•

TW, Matrix, and other wired intercom types.

Beltpack units contained in a weather and shock resistant

•

die-cast magnesium case.

Convenient IEC power connector on the base station so

•

the unit can plug directly to outlets. No in-line or wall plug power supply.

Base station comes with rack ears for easy rack mounting.

•

Beltpack batteries last up to 12 hours when using standard

•

AA alkaline batteries.

RTS® and Audiocom® are registered trademarks of Telex Communications, Inc. Clear-Com® is a registered trademark of Clear-Com Intercom Systems, Inc.

1-1

2-WIRE4-WIRE

STYLE

RJ45

BELTPACK 4

CONNECT

BELTPACK 3

CONNECT

BELTPACK 2

BELTPACK 1

CONNECT

ON/O.M.

FEMALE

XLR

ON/OFF LOGIC

XLR

MALE

XLR

FEMALEMALE

XLR

SELECTLOGIC

OUTPUT

AUDIO

AUXILIARYOUT

OUT

HEADSET

VOLUME

LOGIC

MIC

GAIN

AUXILIARY

AUDIO

INPUT

TALK

INTERCOM

I/C

TRANSMIT

RECEIVE

LOGIC

RECEIVE

LOGIC

RECEIVE

LOGIC

2-WIRE

4-WIRE

WBS-670 BLOCK DIAGRAM

WBS-670 Block Diagram

1-2

Controls and Connections - Front Panel

Section

WBS-670 Base Station

SCAN

Set

WBS-670

Copy

Down

1234

BELTPACKCONNECT

WBS-670 - Front Panel

1. Power switch.

2. [Menu] and [Set] buttons – Used to select menus and set

options on the LCD.

3. Backlit Graphics LCD (Liquid Crystal Display).

4. [Up] and [Down] buttons – Used to select base station

options on the LCD.

5. Beltpack Connect – Buttons used to enable or disable the respective receiver’s audio. GREEN LED = Audio enabled, LED OFF = Audio disabled.

Figure 1

On/Off

Volume

Gain

TALK

Out

INTERCOM

2-Wire

4-Wire

Select

Out

AUXILIARY

10. Microphone Gain – Adjusts the headset’s microphone gain. Adjusts so that the overmod light #9 flashes from green to red on loudest speech.

11. Talk Button – Press to enable the audio path from the local headset. LED #9 will turn green when enabled. A quick press and release latches button on. If the talk function is latched on, pressing the talk button again will turn it off.

12. Local Headset Connector – Male XLR connector. A dynamic or electret headset microphone is automatically detected.

6. Intercom Controls - Wired intercom interface controls. Audio input and output level controls. 2-wire or 4-wire se lect button with green LED indicator lights. Selected LED will change to RED if the input levels are too high.

7. Auxiliary Controls - Wired auxiliary interface controls. Audio input and output level controls. GREEN LED = Aux. input enabled. LED will change to RED if the input levels are too high.

8. Headset Volume – Controls the volume to the headset connected to #12.

9. Talk/Overmod Light – LED is green when talk button #11 is active. A normal mic gain setting will cause the LED to flash red on the loudest speech levels. If the gain is too high, the LED will be red at normal speech volumes.

(1) Microphone Shield (-)

(2) Microphone Audio (+)

(4) Headphone Low (-)

(3) Headphone High (+)

Figure 2

Local Headset Wiring

2-1

Controls and Connections - Rear Panel

RECEIVE

HIGH

TRANSMIT POWER

NORM

OFF

I/C

RTS

TELEX CLEAR-COM

WBS-670

FCC ID: B5DM516

CANADA 1321231218A

Intercom Systems

MADE IN U.S.A.

1. Receive Antenna - Female “TNC” Connector. Color band on antenna must match color dot on base station.

2. Transmit Power Switch – HIGH = Transmitter at full power. NORMAL = Transmitter 10dB below full power.

3. Transmit ON/OFF Switch – Turns the transmitter on or off.

4. I/C Select Switch – Set to the appropriate 2-wire intercom

type being interfaced to the unit. Set to either Clear-Com RTS, or Telex

INTERCOM

2-WIRE

L O O

WBS-670 - Rear Panel

Figure 3

AUXILIARY AUDIO

4-WIRE

PUSHPUSH

INPUT OUTPUT

5. Intercom – Interface to wired intercom system.

2-Wire – Male and Female 3-pin XLR connectors wired in parallel. The connectors are switched to the appropriate intercom configuration via the I/C Select Switch.

4-Wire – An RJ-45 type jack compatible with “Matrix” type intercom systems.

6. Auxiliary Input/Output – One 3-pin female XLR input connector and one 3-pin male XLR output connector.

7. Power – IEC receptacle. Accepts 100 – 240VAC, 50 – 60 Hz

100-240 VAC50-60 Hz

TRANSMIT

POWER

8. Transmit Antenna - Female “TNC” Connector. Color band on antenna must match color dot on base station.

2-2

WBS-670

Specifications

Overall

RF Frequency Range ......................518-608MHz, 614 - 740 MHz in 18 MHz TX and RX bands

Power Requirements........................................100-240 VAC, 50-60 Hz, IEC receptacle

Temperature Range ...............................................-4°Fto130° F (-20° C to 55° C)

Dimensions ..............................19.00” W x 1.72” H x 14.00” D (48.3 cm x 4.4 cm x 35.6 cm)

Weight....................................................................7lbs2oz(3.24 kg)

TX Antenna ............................................1/2Wave(supplied), TNC Male Connector

RX Antenna ............................................1/2Wave(supplied), TNC Male Connector

FCCID: .........................................................................B5DM516

Frequency Response ..............................................................300Hz-8kHz

Four Wire Input.................................................Level Adjustable (2 Vrms typical)

Four Wire Output ...............................................Level Adjustable (2 Vrms typical)

Telex

(AudioCom®) Intercom ........Input/Output Level Adjustable (1 Vrms typical), Line impedance 300ê

RTS Intercom .................Input/Output Level Adjustable (0.775 Vrms typical), Line Impedance 200ê

ClearCom

Auxiliary Input ......................................................Adjustable (2 Vrms typical)

Auxiliary Output.............................................Adjustable (2 Vrms typical into 600ê)

Microphone input sensitivity ..............................................................9mV

Local Headset Output .......................................40mW output into 600ê (1% Distortion)

Intercom ............... Input/Output Level Adjustable (1 Vrms typical), Line Impedance 200ê

Transmitter

Type......................................................Synthesized Transmitter, 712 channels

Transmit Power ..............................................50mWMax. (High), 5 mW (Normal)

Modulation Type ........................................................................FM

Deviation .............................................................40kHz(35kHzEurope)

RF Frequency Stability ................................................................0.005%

Modulation Limiter .................................................Peak-Responding Compressor

Radiated Harmonics & Spurious ........................................Exceeds FCC specifications

Receiver

Type..........Dual Conversion Superheterodyne, four Independent Synthesized IFs, FM, 712 channels each

RF Sensitivity ........................................................<0.8 µV for 12 dB SINAD

Squelch Threshold ..............................................................20dBSINAD

IF Selectivity .................................................................3dBat230kHz

Image Rejection................................................................70dBorbetter

Squelch Quieting ......................................................................90dB

RF Frequency Stability ................................................................0.005%

Distortion ................................................................<1%atfull deviation

2-3

2-4 Blank

Controls and Connections - Top Panel

Bat/OM Talk

Section

WTR-670 Beltpack

Off

Vol

WTR-670 Top Panel

1. On/Off & Volume Control – Turns the beltpack power

on and controls headset volume.

2. Bat/Overmod Light – Light will flash once when unit is turned on if the battery is good. If the light stays on, battery is low. If the light does not flash, battery is dead. A normal microphone gain setting will cause the LED to flash at the beginning of most words at normal speech levels. If the gain is too high, the LED will be red during the complete word at normal speech levels.

TALK

Figure 4

3. Talk Light – LED is on when the talk button is active.

4. Talk button – Press to enable the audio path from the lo-

cal headset microphone. The “TALK” LED, #3, will turn red when enabled. A quick press and release latches the talk function, unless latching has been disabled in software. Holding the button for over ½ a second will cause the audio path to be enabled only for as long as the button is held. If the talk function is latched on, pressing the talk button again will turn it off.

3-1

Controls and Connections - Rear Panel

SET

MIC

TALK

Figure 5

WTR-670 Rear Panel/Connector/Antennas

1. [MENU] and [SET] buttons – Used to select menus and

set options on the LCD.

2. LCD (Liquid Crystal Display)

3. [UP] and [DOWN] buttons – Used to select beltpack op

tions on the LCD.

4. Microphone Gain – Adjusts the headset’s microphone gain. Adjust so that the BAT/OM LED will flash at the be ginning of most words at normal speech levels

6. Headset Connector – Male XLR connector. A dynamic or electret headset microphone is automatically detected by the beltpack and a bias voltage supplied if needed.

(1) Microphone Shield (-)

(2) Microphone Audio (+)

(4) Headphone Low (-)

(3) Headphone High (+)

Figure 6

Headset Connector Wiring

7. Battery Latch – Press down to enable the battery pack to

be released. While the latch is held down, slide the battery pack about 1/8 inch back, toward the latch, until it stops. Then lift out.

8. Receive Antenna – Screw type ¼-wave replaceable antenna. The receiver antenna is always the longer antenna. Color dot on the screw end of the antenna must match color dot on antenna receptacle.

9. Transmit Antenna – Screw type ¼-wave replaceable an tenna. Color dot on the screw end of the antenna must match color dot on antenna receptacle.

5. Push-to-Talk/Push-to-Transmit Switch –

Push-to-Talk (PT TALK) – The transmitter is always on. No audio is sent unless the talk button is pressed. Recommended position.

Push-to-Transmit (PT TX) - The transmitter and au dio paths are off except when the talk button is pressed.

3-2

WTR-670

Specifications

RF Frequency Range ......................518-608MHz, 614 - 740 MHz in 18 MHz TX and RX bands

Power Requirements ........................................6“AA” Cells Alkaline (NiMH optional)

Current Draw ....................................................140mA(Push-to-Talk, Talk On)

Temperature Range ...............................................-4°Fto130° F (-20° C to 55° C)

Dimensions ..................................3.75”W x 5.05”H x 1.65” D (9.5 cm x 12.8 cm x 4.2 cm)

Weight .......................................................16oz(454g) with alkaline batteries

TX Antenna ..........................................1/4Wave(supplied), Screw type, Replaceable

RX Antenna ..........................................1/4Wave(supplied), Screw type, Replaceable

FCCID: .........................................................................B5DM515

Frequency Response ..............................................................300Hz-8kHz

Microphone input sensitivity .............................................................7mV

Local Headset Output .......................................40mWoutput into 600ê (1% distortion)

Transmitter

Type................................................................Synthesized, 712 channels

Transmit Power...............................................50mWMax. (auto-power reduction)

Modulation Type ........................................................................FM

Deviation .............................................................40kHz(35kHzEurope)

RF Frequency Stability ................................................................0.005%

Modulation Limiter .................................................Peak-Responding Compressor

Radiated Harmonics & Spurious ........................................Exceeds FCC specifications

Receiver

Type...............................Dual Conversion Superheterodyne, Synthesized, FM, 712 channels

RF Sensitivity ........................................................<0.7 µV for 12 dB SINAD

Squelch Threshold .................................................20dBSINAD (About 1.0 µV)

IF Selectivity .................................................................3dBat230kHz

Image Rejection................................................................70dBorbetter

Squelch Quieting ......................................................................90dB

RF Frequency Stability ................................................................0.005%

Distortion ................................................................<1%atfull deviation

3-3

3-4 Blank

Unpacking

Section

Initial Equipment Set-Up

Unpack your Clear-Com®System. Below are the items that should come with your base station and each belt pack.

Quantity Description

WBS-670

1 WBS-670 Base Station

1 Operating Instructions

1 Power Cord

2 Antennas (one Transmit and one Receive)

1 Warranty Card

1 Screwdriver

1 Warning Card

4 Rubber feet

Quantity Description

Contact the shipper or your dealer immediately if anything is damaged or missing.

WTR-670

1 WTR-670 with Antennas

1 Battery pack

1 Instruction Sheet

1 Screwdriver

1 Warranty Card

4-1

Antenna Connection

The base station is supplied with two (2) antennas. One 1/2-wave antenna for Transmit and one 1/2-wave for Receive. The antennas have TNC male connectors.

WBS-670

VOL

e l

SCAN

Set

1234

Down

Copy

BELTPACKCONNECT

2-Wire

Volume

4-Wire

Gain

Out

On/Off

Select

TALK

AUXILIARY

INTERCOM

The frequency range of the antennas should match the receiver and transmitter of the base station. Match the color code on the antenna with the color code on the base station.

Attach the transmit 1/2-wave antenna to the antenna input re ceptacle labeled “Transmit” on the right side of the rear panel. The antenna should be vertically aligned.

Figure 7

Attaching Transmit 1/2-Wave Antenna

Attach the receive 1/2-wave antenna to the antenna input receptacle labeled “Receive” on the left side of the rear panel. The antenna should be vertically aligned.

WTR-670

ANTENNAS SHOULD BE VERTICAL

Figure 9

Vertically Polarized Antennas

Distance between Antennas

The distance between the base station’s receive and transmit antennas is not adjustable when the antennas are connected di rectly on the back of the unit.

The antennas can be remoted for better signal path.

NOTE: If your base station is to be located in a shielded rack mount enclosure or other poor RF location, you must remote the 1/2-wave antennas.

Antenna Placement

Proper antenna placement probably has the most effect on your Clear-Com mance. The following suggestions will result in optimum performance.

Proper placement of the beltpack can be critical. The antennas should be in the open. Bending the antennas up and placing the beltpack in a pocket, etc., will reduce system distance.

Wireless Intercom System’s overall perfor-

Figure 8

Attaching Receive 1/2-Wave Antenna

Antenna Polarization

The Clear-Com®Wireless Intercom System is “Vertically Po larized”. This means both the transmitting and receiving an tennas should operate in the vertical position.

It is suggested that the unit be worn on the belt or pocket with both antenna’s vertical for best operating range and perfor mance.

VOL

O F F

WTR-670

Figure 10

Proper Dressing of the Antennas

4-2

Keep the distance between the base station and the beltpacks as short as possible. The greater the distance, the weaker the signal. Make sure the “signal paths” between the base station and beltpacks are unobstructed. You should be able to visibly locate the base station antennas at all times for best perfor mance.

VOL

e l

WTR-670

VOL

O F F

Attempting to operate the wireless intercom system through or around walls, ceilings, metal objects, etc. will reduce system range and performance.

WBS-670

SCAN

Set

1234

Down

Copy

BELTPACKCONNECT

2-Wire

Volume

4-Wire

Gain

Out

On/Off

Select

TALK

AUXILIARY

INTERCOM

VOL

O F

x e

700 FEET

WTR-670

100 FEET

Figure 13

Operating System Near Obstructions

DO NOT - mount the base station 1/2-wave antennas on, or

SCAN

Set

WBS-670

1234

Down

Copy

BELTPACKCONNECT

2-Wire

Out

Volume

4-Wire

Select

INTERCOM

Gain

Out

On/Off

TALK

AUXILIARY

next to metal, such as beams, walls with metal studs, equipment racks, etc. This also applies to the antennas when assembled directly to the Base Station. This will “detune” the

Figure 11

Distance Between base station and beltpack

VOL

O F F

antennas which can result in noise or loss of RF signal at the Base Station, see Figure 13.

WTR-670

VOL

O F F

WTR-670

SCAN

Set

WBS-670

1234

Down

Copy

BELTPACKCONNECT

2-Wire

Volume

4-Wire

Out

INTERCOM

Gain

Out

On/Off

Select

TALK

AUXILIARY

Figure 12

Keeping Site Clear to Antenna

4-3

2. Placing the WBS's on top of a shelf or equipment rack unobstructed without remoting the antennas is OK.

1. Placing WBS's in a shelf or equipment rack and using re mote antennas is OK.

3. Placing WBS's in a shelf or equipment rack with the an

tennas mounted on the back

of the WBS or the side of

the rack is BAD.

WBS-670

SCAN

Set

Down

Copy

2-Wire

Volume

4-Wire

1234

BELTPACKCONNECT

Gain

Out

On/Off

Select

TALK

AUXILIARY

INTERCOM

WBS-670

SCAN

Set

Down

Copy

WBS-670

SCAN

Set

Down

Copy

WBS-670

SCAN

Set

Down

Copy

2-Wire

Volume

4-Wire

1234

BELTPACKCONNECT

1234

BELTPACKCONNECT

1234

BELTPACKCONNECT

Gain

Out

On/Off

Select

TALK

AUXILIARY

INTERCOM

2-Wire

Volume

4-Wire

Gain

Out

On/Off

Select

TALK

AUXILIARY

INTERCOM

2-Wire

Volume

4-Wire

Gain

Out

On/Off

Select

TALK

AUXILIARY

INTERCOM

Improving Reception and Increasing Range

Figure 14

Antenna Placement

WBS-670

SCAN

Set

Down

Copy

WBS-670

SCAN

Set

Down

Copy

WBS-670

SCAN

Set

Down

Copy

1234

BELTPACKCONNECT

1234

BELTPACKCONNECT

1234

BELTPACKCONNECT

2-Wire

Volume

4-Wire

Gain

Out

On/Off

Select

TALK

AUXILIARY

INTERCOM

2-Wire

Volume

4-Wire

Gain

Out

On/Off

Select

TALK

AUXILIARY

INTERCOM

2-Wire

Volume

4-Wire

Gain

Out

On/Off

Select

TALK

AUXILIARY

INTERCOM

Keeping the distance from the base station and beltpack as short, and unobstructed as possible will produce the most reli able performance.

The base station is supplied with two antennas. This should provide satisfactory system performance in most applications.

System range can be enhanced by remoting the 1/2-wave an tennas.

4-4

Base Station Set-up

INTERCOM

INTERFACE

POWER CONNECTION

RECEIVE

HIGH

NORM

OFF

TRANSMIT POWER

I/C

RTS

TELEX CLEAR-COM

WBS-670

FCC ID: B5DM516

CANADA 1321231218A

Intercom Systems

MADE IN U.S.A.

INTERCOM

2-WIRE

TRANSMIT SWITCHES

INTERCOM

SWITCH

Figure 15

Base Station - Rear Panel

Location

Locate the base station with the front and rear of the unit accessible so that switches may be set and connections made. Place the transmit and receive antennas on the base station. Make sure the antenna’s color band match the color dot near each antenna. See “Antenna Information” section for more information on choosing a proper operating location.

Power Connection

Plug the supplied power cord into the unit. The base station has an IEC power receptacle that accepts 100 – 240 VAC, 50 – 60 Hz. The specific receptacle type is an IEC 60320/C14. The cord it accepts is an IEC 60320/C13. These cords are common and available through many retail hardware/electronic stores if the cord is lost.

AUXILIARY AUDIO

L O O P

T H R U

4-WIRE

PUSHPUSH

INPUT OUTPUT

100-240 VAC50-60 Hz

POWER

Transmit Switches

There are two switches located on the lower left side of the rear panel. The upper switch sets the transmit power level to high or normal. The lower switch turns the transmitter on or off.

Transmit Power

Set the power level to normal if using the beltpacks at close to medium distances (<200 feet, 161m, line-of-sight) from the base station. Set the power level to high if using the beltpacks at a distance (>200 feet, 161m, line-of-sight) from the base station.

On/Off

Set the transmitter switch to on for normal use. In the off position the base station transmitter is disabled. Setting the switch to off will disables all the beltpacks from hear ing anyone else or even their own sidetone.

TRANSMIT

4-5

Intercom Switch

Intercom Interface

The Clear-Com®wireless system can be interfaced to Clear-Com, RTS TW, Audiocom

(Telex), Matrix and other intercom (I/C) systems. Set the Intercom switch on the rear of the unit to the appropriate system and connect the system to the base station. The intercom channel on the rear of the base station has loop thru male and female XLR connections for two-wire systems and a RJ-45 type jack for four-wire systems.

This switch only affects the two-wire intercom systems. The functions of the I/C XLRs change depending on the intercom selected. Please see Section 11 for pinout information of the different two-wire intercom systems.

PIN 12345678

Clear-Com®and Telex (Audiocom®) intercom systems require one cable for intercom. This interfacing is done through the I/C 3 pin XLR connectors on the rear of the unit.

RTS TW intercoms also only need to connect one 3-pin cable to one of the two intercom XLR connectors. Two channels of audio are carried on one cable for RTS. RTS channel 1 is placed on the intercom normally. Switch the rear-panel I/C switch to Clear-Com

to interface only to RTS audio channel

2. Once again, leave it in RTS to interface to only RTS audio Channel 1.

Four wire intercom systems require only one cable for the in tercom to interface four wire intercom to the base station. This interfacing is done through the I/C RJ-45 type jacks on the rear of the unit. See Figure 16 for the pinout of the RJ-45 jacks.

CONNECTED TO PIN 7

CONNECTED TO PIN 8

RECEIVE

HIGH

NORM

OFF

TRANSMIT POWER

I/C

RTS

TELEX CLEAR-COM

WBS-670

FCC ID: B5DM516

CANADA 1321231218A

Intercom Systems

MADE IN U.S.A.

Auxiliary Input/Output

CONNECTED TO PIN 2

CONNECTED TO PIN 1

AUDIO OUT +

AUDIO IN +

Figure 16

RJ-45 Type/Four-wire Pinout

INTERCOM

2-WIRE

L O

Base Station - Rear Panel

O P

T H R U

Figure 17

AUDIO OUT -

AUDIO IN -

AUXILIARY

INTERFACE

AUXILIARY AUDIO

4-WIRE

PUSHPUSH

INPUT OUTPUT

100-240 VAC50-60 Hz

TRANSMIT

POWER

The input and output 3-pin auxiliary connections are for sup plying additional balanced audio into and receiving balanced audio from the base station. The input and output auxiliary audio is global. This means the input and output auxiliary au dio is placed on the base local headset, beltpack(s) headsets and any wired intercom system interfaced to the base sta

tion.

A modification document is available from Clear-Com for

those who wish to modify the base station so that auxiliary in

put audio is heard only locally; base local headset and beltpack(s) headsets.

4-6

Beltpack Set-up

Battery Installation

Ensure that the On/Off volume control knob is turned off. Press down and hold down the battery release latch, slide the battery pack about 1/8 inch back, toward the latch, until it stops. Then lift battery pack out. Replace batteries as follows:

1. Open the battery pack by inserting finger nail and lifting.

2. Pull battery strap to remove low or dead batteries.

3. Load new batteries following the polarity as shown in battery case

4. Start loading at the end of the case where the strap is attached to the case.

5. Be sure strap goes under batteries.

6. Tuck end of strap under door

when placing the battery cover back on the case.

WARNING

Do not place an alkaline WTR bat tery pack in any battery charger. Se vere charger and battery pack damage may result.

Figure 18

Battery Installation

4-7

SET

MICROPHONE

GAIN CONTROL

TRANSMIT

SWITCH

HEADSET

CONNECTION

RECEIVE

ANTENNA

TRANSMIT

ANTENNA

Figure 19

WTR-670 Rear Panel

BATTERY

RELEASE

LATCH

Antenna Connection

The beltpack comes with two detachable, screw type, ¼ wave antennas. To attach the two antennas, screw into the recepta cles at the bottom of the beltpack. The color dot on the screw end of the antenna must match the color dot on antenna recep tacle. The longest antenna is the receiver antenna. It screws into the left receptacle if the beltpack is laying flat with the battery compartment face up and the antenna receptacles fac ing you. The other antenna is the transmit antenna. New an tennas can be ordered if desired, see the “Accessories” section.

Transmit mode

The rear panel located transmit switch has the following two modes:

Push-to-Talk (PT TALK) – Recommended position – The transmitter is always on. No audio is sent unless the talk switch is pressed.

Push-to-Transmit (PT TX) – The transmitter and audio paths are off except when the talk switch is pressed.

Headset Connection

Insert the headset plug into the XLR connector. See the head

set pinout in the “WTR-670 beltpack controls and connec tions” section if this is not a Clear-Com

or electret headset microphone is automatically detected by the beltpack and a bias voltage supplied if needed.

headset. A dynamic

4-8

4-9 Blank

Section

Pre-Walk-Thru Checklist

Following the instructions fully to this point you have success fully completed the following checklist:

Located the base station properly.

❒

Connected power to base station.

❒

Connected the 1/2-wave antennas to the base station. Checked frequency range of the antennas with the fre

❒

quency of the base station by correctly matching color codes.

Connected 1/4-wave antenna to the beltpack. Checked frequency range of the antennas with the frequency of

❒

the beltpack by correctly matching color codes.

Base station transmit power switches in the correct po sitions.

❒

Connected headsets to base stations (if needed) and all

❒

beltpacks.

Connected the base station to any auxiliary audio, in tercom or external P.A. system.

Installed batteries in the beltpack.

❒

If you missed any of the above instructions, go back

❒

and complete that instruction before going on.

Transmit mode switch on beltpack set correctly

❒

Set wired intercom type correctly.

❒

5-1

5-2 Blank

Frequency Plan Overview

The WBS/WTR-670 has 36 factory-defined frequency groups and 12 user-programmable frequency groups. A Group de fines the base-station transmit frequency and thus the receive frequency on all the beltpacks. A Channel defines a base-station receive frequency and thus a beltpack transmit frequency. A base-station receive channel that does not have a frequency set for it will have a dash to the right of it on the Group/Channel select screen. Details on setting frequencies may be found in the “WBS-670 Menu Structure” and “WTR-670 Menu Structure” instructions in this section.

Factory-Defined Groups

The 36 factory-defined groups were carefully chosen to avoid certain intermod products and various other possible sources of interference. The Groups are set and cannot be changed. A limited number of channels can be chosen from within these groups.

Section

System Operation

System Quick Start

Follow the list below to quickly get a base station and

beltpack(s) operating. When completed the user should have a base station and 1 to 4 beltpacks up and running with full oper ational ability. The base station will be on Group 01A with its four receivers on channels 01, 02, 03 and 04. Each beltpack will be on Group 01A with a unique transmit channel number matching one of the base station receive channels.

1. Plug-in the base station via the supplied power cord and

connect the antennas. The color dots on the base should match the color rings on the antennas.

2. Base-station rear-panel switches: Transmit power set to

High and on.

3. Ensure base-station rear-panel IC switch matches attached

wired intercom system. If used stand alone or connected to a 4-wire system then IC switch position is Not Applicable.

The first 24 factory-defined groups (01A – 12B) are “pair” groups that can be used for single (up to 4 beltpacks) and dual (up to 8 beltpacks) WBS-670 systems. They are arranged 01A, 01B, 02A, 02B…011B, 012A, 012B. A “pair” group, like 1A and 1B, have different base-station transmit frequencies, however, they both have the same eight base-station re ceive channels from which to choose. Each channel represents a unique frequency. For example, one WBS-670 could be set on Group 02A and channels 01, 02, 03 and 04. The other WBS-670 could be set on Group 02B channels 05, 06, 07 and

08. As long as the channels are different, everything should be fine.

The next 12 groups (13 – 24) are single groups that primarily are used for single (up to 4 beltpacks) WBS-670 systems. The number of channels from which to choose from in these groups will vary from group to group.

User-Programmable Groups

The 12 user-programmable groups are initially empty. The transmit and receive frequencies are fully editable within these groups. In fact, factory-defined groups may be copied to user-programmable groups and then edited if desired. See the “WBS-670 Menu Structure” and “WTR-670 Menu Structure” instructions in this section for details on how to copy and edit frequencies.

4. Press [MENU] as powering-up the base station. This will

place it on group 01A and set the receives on channels: 01, 02, 03, and 04.

5. Place the front-panel IC “IN” and “OUT” level controls in

the 12 o’clock position. Check that front panel IC is in

2-wire for AudioCom (Telex), RTS - TW and Clear-Com wired systems, and 4-wire for Matrix and stand-alone op eration.

6. Place batteries in the beltpacks.

7. Remove the rear switch cover on the beltpacks. Set the

beltpack rear-panel slide switch to push-to-talk (PT TALK).

8. Press [MENU] as powering-up each beltpack. This will

place the beltpack on group 01A with the channel 01 flashing.

9. Use the [UP] and [DOWN] arrow buttons to change the

channel to match a channel on the base station. Then press [SET]. If leaving on channel, just press [MENU]. Each beltpack should have a unique channel number.

10. The group/channel on the beltpack should now match the

group and a receive channel on the base station. Nothing should be flashing on the beltpack screens.

11. Plug headsets into the beltpacks and set the microphone

gain so the BAT/OM LED will flash at the beginning of most words at normal speech levels.

6-1

DONE.

Base Station Operation

POWER

SCAN

Set

WBS-670

Copy

CONNECT

1234

Down

BELTPACKCONNECT

Base Station - Front Panel

Power

PORTABLE STATION

If you have followed the instructions in Section 4, “Initial Equipment Set-Up”, you should now be ready to turn the base station on.

Set the base station power switch to the on position, by push ing the top of the switch.The internal cooling fan will start im mediately and the LCD display and front panel indicator lights will come on in five or six seconds.

Local Headset

Talk Button - Press to enable the audio path from the local

headset. The TALK/O.M. LED will turn green when audio is enabled. A quick press and release latches on the button. If the talk function is latched on, pressing the talk button again will turn it off. If the local headset is not being used, the talk button should be off. This keeps additional noise out of the system.

Microphone Gain - Adjusts the headset’s microphone gain. Adjust so the TALK/O.M. LED flashes from green to red on loudest speech.

Volume - Adjust the volume to the headset by rotating the vol ume control as required for a comfortable listening volume.

LOCAL

HEADSET

2-Wire

4-Wire

Out

Select

INTERCOM

Out

AUXILIARY

Volume

On/Off

AUXILIARY

Gain

TALK

Intercom

Intercom Select Button - Press the [SELECT] button to

choose between 2-wire or 4-wire intercom systems. The green LED will indicate the current mode of the intercom

channel. If the base station is connected to a 2-wire sys tem, such as Audiocom (Telex), RTS TW or Clear-Com, set the intercom to 2-wire. If it is connected to a four-wire system, such as Matrix type system, set the in tercom to 4-wire. The selection is retained in non-volatile memory, so it will come up where last left if the unit is power cycled.

In Level Control - Adjusts the audio level of the wired intercom system’s input to the base station.

Out Level Control - Adjusts the audio level of the base station’s output to the wired intercom system.

If the base station is used stand-alone with no wired intercom system connected, it must be set in the 4-wire mode. The 2-wire mode requires that a wired intercom system or appropriate load be connected to the intercom. If not loaded, a large gain increase will take place in the unload intercom channel which may be high enough to produce a loud “howling” sound.

Beltpack Connect

Select the audio paths from the base station’s four receivers that you wish to enable. The corresponding LED above the select button is on when the audio path is enabled. If a beltpack user has their beltpack connect path off at the base, that user will no longer hear their sidetone and their audio will not be passed to anyone. The user will still be able to hear everyone. The selec tion is retained in non-volatile memory, so it will come up where last left if the unit is power cycled.

Always disable unused audio receive paths. This reduces the chances that external RF noise can get onto the audio buses via an open receiver.

Auxiliary

Auxiliary Input Select Button - Press the [SELECT]

button to turn on or off the auxiliary input to the base sta tion. The selection is retained in non-volatile memory, so it will come-up where last left if the unit is power cycled.

6-2

In Level Control - Adjusts the audio level of the wired auxiliary system’s input to the base station.

Out Level Control - Adjusts the audio level of the base station’s output to the auxiliary XLR plug.

The auxiliary output is always available at the back-panel out put XLR. It cannot be switch on or off like the input. Both the input and output are balanced audio ports. Auxiliary input and output audio is global. See Section 4 for more details.

Display Contrast

The LCD’s (Liquid Crystal Display) contrast is set from the factory to a standard level. However it is possible for the user to adjust the contrast if desired. The contrast control is inter nal to the WBS-670 unit near the front panel. The cover must be removed for access to this control. Please see Figure 20 for the location.

BACK

R1101

Figure 20

LCD Contrast

FRONT

D1101

6-3

WBS-670 Menu Structure

Main Screen Flowchart

The following contains the base station menu structure and references the pages in which further detail of that menu may be found.

Power-Up Screen - Pg. 6-5

Clear-Com

Operating Screen - Pg. 6-5

Group 25u

[MENU]

C60001

B40001

[MENU]

[SET]

Scan Start-up/Search Screen - Pg. 6-9

Scan

Group/Channel Select Screen - Pg. 6-6

Group 25u

[MENU]

2 3 4

Ch 01

Ch 02

Ch 03 Ch 04

Group/Frequency Select Screen - Pg. 6-7

[MENU]

(User-Programmed Only)

[MENU]

Action

[MENU]

No Action

Group 25u

[MENU]

565.350

705.150

707.850

2 3

710.100

715.300

Frequency Edit Screen - Pg. 6-8

Group 25u Freq Edit

565.350

Ch1

2 3 4

705.150

707.850

710.100

715.300

Scan Result Screen - Pg. 6-9

01 05

02 06

03 04 08

[MENU]

[SET]

Group 03A OK?=[SET]

Other Special Key Sequences:

Page

Lockout ........................6-10

Copy ..........................6-10

1st Use Default ..................6-10

Factory Default ..................6-10

NOTE: Pressing [MENU] within a screen after action has occurred escapes from that action and places the user at the current screen. Any editing that had been done since [SET] had been pressed is aborted.

6-4

Power-Up Screen

This screen is displayed only on power-up, first use de

•

fault, and factory default.

The 1stupper-right-corner number displays the base’s

•

software revision. The version number increments for changes in operational software.

The 2ndupper-right-corner number displays the base’s

•

channel map (frequency plan) version. The version num ber increments for changes in the channel map.

Once the power-up screen is displayed, it will change to

•

the operating screen after a few seconds.

Operating Screen

Screen is displayed after power-up screen.

•

System will revert to this screen if no activity is detected

•

on the LCD display buttons after 3 minutes.

Clear-Com

B40001

C60001

Operating Screen

Group 03A

Off

Tx Tx

Screen displays current status of the system.

•

Beltpack Activity Code Definitions:

no tx = No Beltpack Transmit Carrier Detected Off = Receiver is not selected on front panel Tx = Beltpack is on

6-5

Group / Channel Select

The Group/Channel select screen allows the user to change the group and select from a pre-determined number of channels on each receiver.

Hit [MENU] once to enter the Group / Channel Select

•

Screen from the operating screen.

Hit [SET] to enter group edit. The group number will start

•

flashing. If [SET] is hit again without hitting the arrows, the display will go to receive 01 channel edit. NOTE: A channel that does not have a frequency set for it will have a dash to the right of it on the group/channel select screen.

Group / Channel Select

Group 14

T1 T1

Ch 01

Ch 02

2 3

Ch 03

Ch 04

[SET]

Ch 01

Ch 02

2 3

Ch 03

Ch 04

[UP] / [DOWN] [SET]

The [UP] / [DOWN] arrows will change the group num

•

ber. Hit [SET] again to set the group that was flashing. Now the group number will stop flashing and R1’s channel number will start to flash.

The [UP] / [DOWN] arrows will change the receive chan-

•

nel number. Hit [SET] to set the channel that was selected. Now the second channel number will start to flash. If [SET] is hit again without hitting the arrows, the dis play will go to the next channel number.

After the last receive channel is decided upon, hitting

•

[SET] will set that channel in the unit and start you over at the beginning of the group/channel select screen with nothing flashing.

Group 15

Ch 01

Ch 02

2 3

Ch 03

Ch 04

[UP] / [DOWN] [SET]

Ch 05

Ch 02

2 3

Ch 03

Ch 04

[UP] / [DOWN] [SET] (Last Rx Changed)

Ch 05

Ch 06

Ch 07

Ch 08

Hitting [MENU] will take you to the group/frequency se

•

lect screen. NOTE: Hitting [MENU] after activity has oc curred within the screen will return to the group/channel select screen with nothing flashing. Any change that had been done before the last [SET] was pressed will be aborted.

Setting two channels the same is not allowed. If a channel

•

is already set on the screen, the user no longer has that channel as an option to set into one of the other receivers.

6-6

Group 15

569.700

END

[MENU]

715.000

716.700

2 3

719.700

721.600

Group / Frequency Select

The Group/Frequency select screen allows a user to set the group and select from a pre-determined number of frequencies on each receiver. Each frequency displayed on the right half of the screen corresponds to a channel number in the Group/Channel Screen.

Press [MENU] twice to go to the Group / Frequency Se

•

lect screen from the operating screen. Hit [SET] to start the group number flashing.

Press the [UP] / [DOWN] arrows to change the group

•

number. The frequencies listed will reflect what is cur rently in that group. Hitting [SET] will select the group and start the selecting of predetermined frequencies within that group. The R1 frequency will start flashing. NOTE: The group number sets the transmit frequencies of factory defined groups and these are not editable. In user-programmed groups these are editable from the fre quency edit screen.

Group / Frequency Select

Group 15

569.700

Group 14

563.100

715.000

716.700

2 3

719.700

721.600

[UP] / [DOWN]

[SET]

713.200

716.100

2 3

718.600

721.600

[UP] / [DOWN]

[SET]

Pressing the [UP] / [DOWN] arrows will change the fre-

•

quency of “R1” to the pre-defined frequencies available. Hitting [SET] will accept the change and start you editing the next channel. If you had not hit the arrow keys when the frequency was flashing, but instead hit [SET], you would have skipped to the next frequency to edit.

After the last receive frequency is decided upon, hitting

•

[SET] will save that last frequency and start you over at the beginning of the group/frequency select screen with nothing flashing.

Pressing [MENU] will take you to the operating screen if

•

this is a factory-defined group. If within a user pro grammed group, you will be taken to the frequency edit screen. NOTE: Hitting [MENU] after activity has oc curred within the screen will return to the group/fre quency edit screen with nothing flashing. Any change that had been done before the last [SET] was pressed will be aborted.

Group 14

563.100

Group 14

563.100

Group 14

T1 T1

END

704.200

716.100

718.600

721.600

[UP] / [DOWN]

[SET] (Last Rx Changed)

704.200

704.700

708.300

709.500

[MENU]

no tx no tx

3 4

6-7

Frequency Edit

(User-Programmed Groups Only)

This menu only occurs for user-programmable groups or when copying to a user-programable group. The Frequency Edit screen allows the user to set the group transmit frequency and receive channel frequencies of a user-programmable group.

Press [MENU] three times to go to the frequency select

•

screen from the operating screen. Press [SET] to start the group number flashing. This screen allows the user to set the group and frequencies of user-programmed groups only.

Press the [UP] / [DOWN] arrows to change the group

•

number. The frequencies listed will reflect what is cur rently in that group. Dashes will be displayed in any slots that are not defined yet. Pressing [SET] will select the group and start the selecting of frequencies within that group. The Tx frequency will start flashing.

Frequency Edit

(User-Programmed Groups Only)

Group 25u Freq Edit

565.350

Group 27u Freq Edit

567.800

705.150

Ch1

707.850

2 3

710.100

715.300

[UP] / [DOWN]

[SET]

705.150

Ch1

707.850

2 3

710.100

715.300

Pressing the [UP] / [DOWN] arrows will change the fre-

•

quency of “Tx” in 25kHz steps. Pressing [SET] will accept the change and start you editing Ch1. If you had not hit the arrow keys when the frequency was flashing, but instead press [SET], you would have skipped to the next frequency to edit.

After editing the transmit and the receive channel fre

•

quencies, pressing [SET] will save that last frequency and send you over to the beginning of the group/frequency select screen with nothing flashing. NOTE: Once the end of the displayed channel list is reached, the last displayed channel location will scroll to allow the user to edit the re maining channels.

After action has occurred in the frequency edit screen hit

•

ting [MENU] will take you one menu back to the group/frequency select screen so that the user may see what frequencies the base receivers are now on. If no ac tion had occurred, then pressing [MENU] will take you to the operating screen. NOTE: Besides a group change, any editing that occurs within this screen to frequencies DOES NOT take effect until the user exits the screen via setting the last channel or pressing [MENU].

[UP] / [DOWN]

[SET]

Group 27u Freq Edit

569.350

Group 27u

END

569.350

Ch7

718.550

720.550

721.350

721.900

[SET] or [MENU]

(Last Ch Changed)

705.950

710.550

714.225

716.800

6-8

Scan

Scan performs a frequency scan of the factory-defined and any set-up user-programmable groups in order to find the group with the highest number of clear receive channels. After about 20-30 seconds, the group with the highest number of clear re ceive channels will be displayed. The next best group and so forth may be accessed with the [DOWN] and [UP] arow but tons.

Scan

Press and hold [MENU] + [SET] for three seconds to en

•

ter Scan. The base station will now start searching all groups for the ones with the greatest number of receiver

channels clear of interference.

Scan will display the group that has the most interference

•

free receive channels. These clear channels are displayed on the right half of the screen. Press [SET] to place the base station on this group and return to the operating screen. The first four receive channels displayed will be the ones set for the group. The [UP] / [DOWN] buttons may be used to select the next best group and so forth.

Prev Next

Scan

01 05

02 06

04 08

[DOWN]

04 08

no tx

[SET]

Group 03A OK?=[SET]

Group 04b 01 05 OK?=[SET]

Group 04b

6-9

END

Special Key Sequences

Lockout

Press [UP]+[DOWN] for 3 seconds to lock or unlock the

•

base station. Pressing [MENU] will still function to view screens, but [SET] will no longer start any editing. Scan, First use, Factory default are no longer accessible. The in tercom front panel 2-wire/4-wire selection is also locked into place. A padlock icon will be displayed on the second line of the display to the far left as an indication that the base station is locked out.

Copy

Press [SET]+[DOWN] for 3 seconds to copy any cur

•

rently displayed group to a user-programmable group. Copy can be done from the group/channel select, group/frequency select, or frequency edit screen. Once pressed, the words, “Copy to” are displayed on the screen with the first empty user-programmable group flashing. If all the user-programmed groups were full, than the first programable group is displayed. The [UP] or [DOWN] buttons may be used to select a different user-programmable group if desired. Pressing [SET] pastes frequencies/channels to the group and take the user to the frequency edit screen with "Tx” flashing.

1stUse Default

Press [MENU] while turning on the base station to enter

•

the 1 group 01A with the four receivers set to channels 1- 4 of

the group. Any user-programmed frequencies that had been entered previously are retained. If lockout had been activated, the beltpack comes up where it was last left regardless of [MENU] being pressed on power-up.

Factory Default

Pressing all four buttons [MENU]+[SET]+[UP]+[DOWN]

•

at the same time for 3 seconds places the unit on group 01A with the four receivers set to channels1–4ofthat group. This is just like base station 1 that all user-programmed frequencies that had been en tered previously are erased. This function may take sev eral seconds. If lockout had been activated, the beltpack comes up where it was last left regardless of these four keys being pressed.

use default setup screen. This places the unit on

use default, except

6-10

Beltpack Operation

POWER

LOCAL HEADSET VOLUME

BATTERY

CHECK

SET

Bat/OM Talk

Off

Vol

TALK

BUTTON

MICROPHONE

GAIN

Figure 21

WTR-670 - Top and Rear Panel

Power / Local Headset Volume

Turn the beltpack power on by rotating the knob CW. Adjust the volume to the headset by rotating the volume control as required for a comfortable listening volume.

Battery Check

When the beltpack power is turned on by rotating the knob, the BAT/OM LED will flash once if the battery is good. If the LED stays on, the battery is low. If the LED does not flash, the battery is dead.

TALK

Talk Button

Press the talk button to enable the audio path from the headset microphone. The TALK/OM LED will turn red when audio is enabled. A quick press and release latches the talk function unless latching has been disabled. Holding the button for over ½ a second will cause the audio path to be enabled only for as long as the button is held. If the talk function is latched on, pressing the talk button again will turn it off. See the “Talk Button Latching/Non-Latching” instructions in Section 6 to learn how to enable/disable latching of the talk button.

Microphone Gain

Adjusts the headset’s microphone gain. Adjust so the TALK/OM LED flashes red at the beginning of most words at normal speech levels. If the input is too large, the LED will be red during the complete word at normal speech level. The peak-responding au dio limiter in the beltpack is very tolerant of high input audio lev els. Even when the microphone gain is maximized, and headset volume reduced to make up for the louder audio, the audio will still sound good and not clipped.

6-11

WTR-670 Menu Structure

Beltpack Menu Structure

The following contains the main beltpack menu structure and refer ences the pages in which further detail of that menu may be found.

All beltpack features and special key sequences can only be done from the group/channel screen.

Power-Up Screen - Pg. 6-13

S20001

C60001

[MENU]

Group/Channel Screen - Pg. 6-14

[SET]

03A 01

GP CH

Scan Search Screen - Pg. 6-17

Clr Scn

[MENU]

Transmit Screen - Pg. 6-15

704.200

[MENU]

Receive Screen - Pg. 6-16

570.300

[MENU]

Scan Result Screen - Pg. 6-17

04A Scn

[MENU]

[SET]

Beltpack Feature Enable/Disable Menus:

Talk Button Latching/Non-Latching ...........6-18

Other Special Key Sequences:

Lockout ................................6-18

Use Default............................6-18

Factory Default ..........................6-18

Page

6-12

Power-Up Screens

The first screens displayed when the beltpack is powered

•

up are the software and channel map version screens.

Power-Up Screens

The 1stscreen displayed indicates the beltpack’s software

•

version number. It is displayed for about one second.

The 2nd screen displayed indicates the beltpack’s channel

•

map (frequency plan) version number. It is displayed for about one second.

The final screen displayed is the group/channel screen

•

S20001

C60001

03A 01

GP CH

END

6-13

Group / Channel Screen

The Group/Channel screen allows the user to change the group and select from a pre-determined number of transmit channels.

Group / Channel Screen

The screen displayed after the beltpack power-up screens.

•

Press [SET] to edit the channel number. The channel

•

number will start flashing.

Use the [UP]/[DOWN] arrow buttons to change the chan-

•

nel number.

03A 01

[SET]

03A 01

[UP]/[DOWN]

03A 02

[SET]

then [SET] twice more

Press [SET] to place the beltpack on the channel selected.

•

Once set is pressed, the beltpack transmitter will move to that frequency and nothing will be flashing. Now press [SET] twice to enter group edit.

Use the [UP]/[DOWN] arrow buttons to change the group

•

number.

Press [SET] to place the beltpack on the group selected.

•

Once set is pressed, the unit returns to the group/channel display with nothing flashing.

Pressing [SET] once more will start the editing sequence

•

over again. Pressing [MENU] during the group edit will end editing and send the user back at the group/channel screen without any changes. This applies to channel edit ing too.

03A 02

[UP]/[DOWN]

05b 02

[SET]

05b 02

END

6-14

Transmit Screen

The Transmit screen allows the user to set the beltpack trans mit frequency. Factory-defined groups will allow only a set number of pre-defined frequencies to be selected. User-programmable groups will allow the user to change the frequency in 25kHz steps.

Press [MENU] once from the group/channel screen to ar

•

rive at the transmit frequency screen.

Press [SET] to edit the frequency. The number will start

•

flashing.

Use the [UP]/[DOWN] arrow buttons to change the fre

•

quency.

704.700

[SET]

704.700

[UP]/[DOWN]

706.500

Press [SET] to place the beltpack on the frequency se-

•

lected. If set is held down, during that time the group/channel is displayed so the user is aware of what transmit channel the unit has been placed. Once set is released, the unit returns to the transmit frequency screen with nothing flashing.

Pressing [SET] once more will start the editing sequence

•

over again. Pressing [MENU] during transmit frequency edit will end editing and send the user back to the transmit screen without any changes.

[SET] IS HELD DOWN

03A 03

GP CH

[SET] IS RELEASED

706.500

END

6-15

Receive Screen

The Receive screen allows the user to set the beltpack receive frequency. This corresponds to the base station’s transmit fre quency. In factory-defined groups receive is not changeable. User-programable groups will allow the user to change the fre quency in 25 KHz steps.

Press [MENU] twice from the group/channel screen to ar

•

rive at the receive frequency screen.

(User-Programmable Groups Only) Press [SET] to edit

•

the frequency. The number will start flashing. Fac tory-defined groups can’t be changed; so pressing set will do nothing at this screen. User-programmed groups will start flashing and allow the user to change the frequency in 25kHz steps.

Receive Screen

554.250

[SET]

554.250

[UP] / [DOWN]

(User-Programmable Groups Only) Use the

•

[UP]/[DOWN] arrow buttons to change the frequency.

(User-Programmable Groups Only) Press [SET] to place

•

the beltpack on the frequency selected. If set is held down, during that time the group is displayed so the user is aware of what group the unit has been placed. Once set is released, the unit returns to the receive frequency screen with nothing flashing.

(User-Programmable Groups Only) Pressing [SET] once

•

more will start the editing sequence over again. Pressing [MENU] during receive frequency edit will end editing and send the user back to the receive screen without any changes.

566.750

[SET] IS HELD DOWN

27u

[SET] IS RELEASED

566.750

END

6-16

Scan

Scan performs a frequency scan of the factory-defined and any set-up user-programmable groups in order to find the clearest group. After about 30 seconds, the clearest group is displayed. A group is defined by the receive frequency. The next best group and so forth may be accessed with the [DOWN] and [UP] arrow buttons.

Scan

Press and hold [MENU] + [SET] for three seconds to en

•

ter Scan. The beltpack will now start searching for the clearest groups. The group symbol will flash indicating the beltpack is scanning for clear groups.

Scan will scan all groups. It will then display the 1

•

group it came to that had the clearest receive channel. The [UP] / [DOWN] buttons may be used to select the next best group and so forth. Hit [SET] to place the beltpack on this group and return to the group/channel screen.

Clr Scn

04b Scn

[SET]

04b 01

GP CH

END

6-17

Talk Button Latch on/Latch off

Press and hold [SET] then press the [TALK] button to

•

show the Talk Button Latch/Non-Latching screen. The current setting of the feature is displayed on the LCD dis play.

HOLD [SET] AND PRESS [TALK]

lon

While continuing to hold [SET] press [TALK] again to

•

toggle the display from on to off or back. Release the [SET] button to accept the current displayed setting and return to the Group/Channel screen.

Special Key Sequences

Lockout

Press [UP]+[DOWN] for 3 seconds to lock or unlock the

•

beltpack. The words “Loc on” will be displayed when the feature is activated, “Loc oFF” will be displayed when the beltpack is unlocked. Pressing [MENU] will still function to view screens, but [SET] will no longer start any editing. Scan, First use, Factory default and talk button latch on/latch off are no longer accessible.

CONTINUE TO HOLD [SET]

AND PRESS [TALK] AGAIN

RELEASE [SET]

03A 01

GP CH

END

l oFF

1stUse Default

Press [MENU] while turning on the beltpack to enter the

•

use default setup screen. This places the unit on group

01A with channel 01 flashing. Any user-programmed

frequencies that had been entered previously are re tained. The beltpacks must now be set to different trans

mit channels using the [UP]/[DOWN] buttons. Then [SET] is hit to place the units on those channels. If lock out had been activated, the beltpack comes up where it was last left regardless of [MENU] being pressed on power-up.

Factory Default

Pressing all four buttons [MENU]+[SET]+[UP]+[DOWN]

•

at the same time for three seconds places the unit on group 01A with channel 01 flashing, just like beltpack 1 use default, except the all user-programmed frequencies that had been entered previously are erased. After the buttons are released, it still may take several seconds for the beltpack to reset. The beltpacks must now be set to different transmit channels using the [UP]/[DOWN] but tons. Then [SET] is hit to place the units on those chan nels. If lockout had been activated, the beltpack comes up where it was last left regardless of these four keys being pressed.

6-18

Section

System Walk-Thru

Now that you have successfully “set-up” your Wireless Inter com System and turned on any auxiliary equipment, you are ready to test the overall performance by “Walking” the system through the areas in which you will be using it.

Before you begin your walk-thru, check the following:

Beltpack Battery Check.

❒

Set microphone gain in both the beltpack(s) and the base station.

❒

The base station and beltpack(s) are on the same group and the beltpack(s) are on their own unique transmit

❒

channels that match the base station receive channels

Check that the talk button is engaged. The talk LED will be illuminated.

❒

Intercom Level “IN” and “OUT” are set to an appropriate level.

❒

Auxiliary Level “IN” and “OUT” are set to an appro priate level (if used).

❒

The “system walk-thru” can detect problem of weak signal strength caused by:

Poor antenna location

•

Wrong antenna for receiver and/ or transmitter

•

RF “Trouble Spots”

•

Operating distance beyond system capability

•

Old or used batteries in the WTR-670

•

Under normal conditions the base station’s display will indicate a beltpack status. “Weak Signal” condition will result in “no tx” being displayed on the base station’s receiver for that beltpack.

In 99% of all instances you will set up your Wireless Intercom System, walk it through the area of interest and achieve error-free performance. If in the rare instance your system does not “pass” during your walk-thru evaluation, refer to the section of this manual which deals with System Troubleshooting.

7-1

7-2 Blank

Section

Troubleshooting

Reread the sections of this manual to make sure you have completed system set-up properly.

PROBLEM SOLUTION

DISTORTION - System’s audio quality seems distorted

at medium to high input levels.

HISS - System seems to produce a “hiss” which is undesirable.

LOW OUTPUT - System produces a low output level.

FEEDBACK - Moving around area of use produces

“squeal” or “howl” in various locations using ext. speakers.

DROPOUTS - When moving around the area of use there seems to be locations where the signal “swooshes” or completely disappears.

If you are unable to solve the problem, contact the dealer from whom you purchased the system for assistance

Reduce microphone gain by adjusting microphone gain control.

Check the gain setting on all beltpacks and the base. They may be too low or too high. Check to make sure you are still well within range of the base station

Check the gain setting on both the beltpacks and the base. They may be too low.

Reduce the gain settings on both the beltpacks and the base. They may be too high.

Make sure both antennas on the base and beltpack are connected and follow the location suggestions. Change the location of the base unit and antennas or avoid the bad areas with the remote beltpacks.

INTERFERENCE - System picks up signals other than wireless intercoms.

NO AUDIO from BASE or BELTPACK headsets.

Make sure that all the beltpack(s) are on. If there are any unused receivers at the base, turn the audio off from those receivers by deselecting the appropriate “Beltpack Connect” button.

If problems persist with the beltpack on, you will probably need to change the group. Make sure the base and beltpack match after any Group/Channel change.

Check Transmitter switch on base and beltpack. Check talk LED to make sure is is on. Make sure beltpack batteries are OK.

8-1

8-2 Blank

Frequency Interaction

Section

Tech Tips

Unfortunately, radio frequency (RF) channels cannot be ran domly selected for use in radio devices. They must be selected to avoid known frequencies in use, FCC restrictions on the lo cation of devices, and even interference between your own RF devices. The factory defined frequencies (Groups 01A-24) se lected for this system are chosen to minimize possible interfer ence.

Microphone Gain Adjustment

The microphone gain controls on the base station and beltpack are set to mid-levels by the factory. In most cases this setting will work fine and only on loud speech will the overmodulation (OM) indicator light. However, in environments where the background noise is loud or the user has a strong/quiet voice, the gain control will need to be adjusted. In Figure22 the gain is set correctly. The user’s root-mean-square (RMS) sound level is well below the OM threshold and only on peaks does his or her voice flash the OM indicator light.

OM THRESHOLD

Figure 23 displays the same gain setting as in Figure 22 but brought into a high noise environment. The user’s voice now

lights the OM indicator all the time he or she speaks due to the higher noise plus the user speaking louder. The result on the

system is distortion on louder speech. The microphone gain

must be reduced. The same applies to a user with a powerful voice. If someone sets the system mic gain to their voice and user has a much stronger voice, then the gain will need to be reduced, even if the background noise is the same.

Always remember to set the microphone gain based on the sit uation and location in which the equipment will be used. If the equipment is used on the field during a football game, set the gain based upon a loud stadium, NOT the quiet stadium 2 hours before a game. If a production studio user has a quiet voice, set the gain to their voice and NOT the stage hand’s loud voice who helped set up the system.

USER'S VOICE

OM THRESHOLD

USER'S VOICE

SOUND LEVEL, RMS

Figure 22

Low Noise Environment

Microphone Gain Set Correctly

NOISE

SOUND LEVEL, RMS

Figure 23

High Noise Environment

Microphone Gain Set Too High

9-1

9-2 Blank

Section

Battery Information

Improper battery selection, use, installation and care are the cause of numerous wireless system failures.

Alkaline Batteries: Alkaline batteries such as Mallory’s DURACELL® or Eveready’s ENERGIZER® provide the most reliable operation in wireless transceivers. Typical bat tery life of fresh alkaline batteries is 12 hours. The use of low

cost carbon-zinc batteries is NOT recommended.

WARNING:

Do not place an alkaline WTR battery pack in any battery charger. Severe charger and battery pack damage may result.

Nickel-Metal Hydride Batteries: These batteries can save you money in the long run, as they can be recharged. Typical battery life is 8 to 9 hours, which is about 70% of the length of time alkaline batteries last.

Energizer® is a registered trademark of Union Carbide Corporation. Duracell® is a registered trademark of Duracell Inc.

10-1

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Section

Intercom Systems Specifications

Clear-Com

Input Impedance: ...............................................................200

Output Level: .................................................1.0 Vrms nominal

Bridging Impedance: .......................................................>10k

Call Signaling:

Send:................................................................12 ñ3 VDC

Receive: ...............................................4 VDC Minimum

Power Voltage: ............................................30.0 VDC nominal

RTS

Input Impedance: ...............................................................200

Output Level: .............................................0.775 Vrms nominal

Bridging Impedance: .......................................................>10k

Call Signaling:

Send: ...................................20kHz ñ100 Hz, 240 mVrms

Receive: .............................20kHz ñ800 Hz, 100 mVrms

Power Voltage: ............................................28.0 VDC nominal

COMMON

POWER

AUDIO

MALE

COMMON

AUDIO 1 PLUS POWER

MALE

AUDIO 2

AudioCom/Telex

Input Impedance: ...............................................................300

Output Level: .................................................1.0 Vrms nominal

Bridging Impedance: .......................................................>10k

Call Signaling:

Send: .....................................20kHz ñ100 Hz, 05 mVrms

Receive: .............................20kHz ñ800 Hz, 100 mVrms

Power Voltage: ............................................24.0 VDC nominal

11-1

COMMON

AUDIO(-)PLUSPOWER

MALE

AUDIO ( + ) PLUS POWER

11-2 Blank

Base Station’s AN-680 1/2 - Wave Antennas

Part No. Band Color Frequency C6 A2 B4

AN-680/C Red 615-659.9 MHz Rx

AN-680/E Green 690-724.9 MHz Rx

AN-680/G Pink 515-548 MHz Tx

AN-680/H Brown 542-575 MHz Tx

AN-680/A Blue 520-564.9 MHz Tx

AN-680/D White 660-689.9 MHz Rx

Section

Accessories and Replacement Parts

WTR Battery pack, alkaline

(batteries not included) .........................................WTR-BC

WTR Nickel Metal Hydride

Battery pack .......................................................WTR-BAT

Slot "Smart" Charger

with Four Nickel Metal Hydride Battery Packs

Beltpack’s AN-685 1/4-Wave Antenna

Part No. Band Color Frequency C6 A2

AN-685/A Black 485.0-553.9 MHz Rx

U.S./Canada ........................................................WTR-CHGR

Euro...............................................................WTR-CHGR/220

AN-685/B Yellow 554.0-635.9 MHz Rx

AN-685/C Green 636.0-725.9 MHz Tx Tx

12-1

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Section

Customer Service Information

Factory Service

All equipment returned for repair must be accompanied by documentation stating the return address, telephone number, date of purchase, and a description of the problem.

Before returning equipment for repair, you must obtain a return authorization number. To obtain a re turn authorization number, call our customer service department at the number listed below. By talking with our representatives, many problems can often be resolved over the phone. You can also fax our customer service department or send an email to support@clearcom.com.

After obtaining a return authorization number, send equipment to be repaired to:

Customer Service Department Clear-Com Intercom Systems 4065 Hollis Street Emeryville, CA 94608-3505 Telephone: (510) 496-6666 Fax: (510) 496-6610 Web site: www.clearcom.com

Warranty Repair

If in warranty, no charge will be made for the repairs. Equipment being returned for warranty repair must be sent prepaid and will be returned prepaid.

Non-Warranty Repair

Equipment that is not under warranty must be sent prepaid to Clear-Com. If requested, an estimate of repair costs will be issued prior to service. Once repair is approved and repair of equipment is com pleted, the equipment will be shipped freight collect from the factory.

13-1

13-2 Blank

FCC LICENSING

Section

Certification Information

The WBS-670 and the WTR-670 Transmitter/Receiver are Type Accepted under United States Fed eral Communications Commission Part 74. Licensing of equipment is the User’s responsibility and licensibility depends on the user’s classification, users application, and frequency selected. Clear-Com strongly urges the user to contact the appropriate telecommunications authority for any desired clarifi cation.

CAUTION: Changes or modifications made by the user could void the user’s authority to operate the equipment.

Mandatory Safety Instructions

to Base Station Installers and Users

1. Use only manufacturer or dealer supplied antenna.

Antenna Minimum Safe Distance: 20 cm

Antenna Gain: zero dBd referenced to a dipole.

2. The FEDERAL COMMUNICATIONS COMMISSION has adopted a safety standard for human exposure to RF (Radio Frequency) energy, which is below the OSHA (Occupational Safety and Health Act) limits.

3. Antenna Mounting: The antenna supplied by the manufacturer or radio dealer must not be mounted at a location such that during radio transmission, any person or persons can come closer than the above indicated minimum safe distance to the antenna i.e. 20 cm

4. To comply with current FCC RF Exposure limits, the antenna must be installed at or exceeding the mini mum safe distance shown above, and in accordance with the requirements of the antenna manufacturer or supplier.

5. Base Station Installation: The antenna should be fixed-mounted on an outdoor permanent structure. RF Exposure compliance must be addressed at the time of installation.

6. Antenna substitution: Do not substitute any antenna for the one supplied or recommended by the manu facturer or radio dealer. You may be exposing person or persons to harmful radio frequency radiation. You may contact your radio dealer or the manufacturer for further instructions.

WARNING: Maintain a separation distance from the antenna to person(s) of at least 20cm.

You, as the qualified end-user of this radio device must control the exposure conditions of bystanders to ensure that the minimum separation distance (above) is maintained between the antenna and nearby per sons for satisfying RF Exposure compliance.

The operation of this transmitter must satisfy the requirements of the Occupational/Controlled Exposure Environment for work-related use. Transmit only when person(s) are at least the minimum distance from the properly installed, externally mounted antenna.

14-1

14-2 Blank

Section

Clear-Com Limited Warranty

This product is guaranteed by Clear-Com Intercom Systems to be free of manufacturing defects in material and workmanship under normal use for three years from the date of purchase.

The Clear-Com Intercom Systems warranty does not cover any defect, malfunction, or failure caused beyond the control of Clear-Com, including unreasonable or negligent operation, abuse, accident, failure to follow in structions in the manual, defective or improperly associated equipment, attempts at modification and repair not authorized by Clear-Com, and shipping damage. Products with their serial numbers removed or defaced are not covered by this warranty.

This warranty is the sole and exclusive express warranty given with respect to Clear-Com products. It is the re sponsibility of the user to determine before purchase that this product is suitable for the user's intended purpose.

Any and all implied warranties, including the implied warranty of merchantability, are limited to the duration of this express limited warranty. Neither Clear-Com nor the dealer who sells Clear-Com products is liable for incidental or consequential damages of any kind.

Return authorization numbers are required for all returns.

Both warranty and non-warranty repairs are available.

For your own records fill in the information below:

Model No. Serial No.

Date Purchased

Purchased from (dealer)

Address

City State ZIP

15-1

15-2 Blank

Intercom Systems

Clear-Com Intercom Systems 4065 Hollis Street, Emeryville, CA 94608-3505

•

PN 803542 MAY 2002 Made in U.S.A.

Clear-Com WTR-670 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual