CIRCUIT DESIGN WA-TBT-03S Bedienungsanleitung

OG_WA-TB-03S_v10e 1 Circuit Design, Inc

OPERATION GUIDE

Test board for WA-TX-03S, WA-RX-03S

WA-TBT-03S and WA-TBR-03S

Operation guide

Version 1.0 (May 2017)

CIRCUIT DESIGN, INC.,

7557-1 Hotaka, Azumino-city

Nagano 399-8303 JAPAN

Tel: + +81-(0)263-82-1024

Fax: + +81-(0)263-82-1016

e-mail: [email protected]

http://www.cdt21.com

OG_WA-TB-03S_v10e 2 Circuit Design, Inc

OPERATION GUIDE

CONTENTS

GENERAL DESCRIPTION AND FEATURES....................................2

TEST BOARD LAYOUT ....................................................................3

POWER SUPPLY......................................................………………...4

FREQUENCY SELECTION......................................................……..4

OTHER SETTINGS.................................................................……...5

CONNECTING THE MIC...................................................................6

CAUTION NOTICE…...…………………………………………………..7

DIMENSIONS……………………………………………………………..8

CIRCUIT DIAGRAM……………………………………………………...10

CAUTIONS & WARNINGS……………………………………………….12

REVISION HISTORY ........................................................................13

GENERAL DESCRIPTION & FEATURES

General description

This test board is developed to allow you to evaluate the performance of WA-TX-03-R and

WA-RX-03-R or WA-TX-03S and WA-RX-03S without any additional components.

The board consists of a DC/DC converter, LEDs, a battery case and a module.

WA-TBT-03S and WA-TBR-03S do not include modules WA-TX-03-R and WA-RX-03-R or

WA-TX-03S and WA-RX-03S. Please make sure to order them if needed.

Features

Mounted battery holder

Rotary switch for frequency selection

Audio input level adjust (TX)

Volume control (RX)

Microphone/audio input (3.5mm socket)

Audio / headphone output (3.5mm socket)

Audio cut off

RF Power selection (WA-TX-03S only)

Standby switch (Yellow)

OG_WA-TB-03S_v10e 3 Circuit Design, Inc

OPERATION GUIDE

TEST BOARD LAYOUT

WA-TBT-03S

WA-TBR-03S

Batteries: 2 xAAA, 1.5 V

OG_WA-TB-03S_v10e 4 Circuit Design, Inc

OPERATION GUIDE

POWER SUPPLY

WA-TBT-03S, 2 xAAA size, 1.5v

WA-TBR-03S, 2 xAAA size, 1.5v

FREQUENCY SELECTION

Select the frequency channel by using the rotary switches. Ensure they are the same on both the

WA-TBT-03S and WA-TBR-03S boards.

Channel

(Rotary switch)

Frequency (MHz)

Not available

863.125

863.250

863.375

863.500

863.625

863.750

863.875

864.000

864.125

864.250

864.375

864.500

864.625

864.750

864.875

Attention:

If there are more than 2 transmitters and 2 receivers operating in the same area, one must be

careful of third-order intermodulation interference. To avoid this, it is recommended to plan your

channel usage by using our calculation tool.

Details of the calculation tool and explanation of third-order intermodulation interference can be

found at: http://www.cdt21.com/resources/siryo6.asp

Channel select

OG_WA-TB-03S_v10e 5 Circuit Design, Inc

OPERATION GUIDE

OTHER SETTINGS

Standby Switch (STB / yellow)

Standby disables RF emission and puts

the module into standby.

TX: Module does not go into standby

during power shut off.

AUTO: During power OFF, the module

enters standby initially allowing a more

controlled power down cycle. This avoids

audio spikes heard at the receiver.

CENTER POS.: No function

RF power select (EUP)

Select RF power level.

H –High (10 mW)

L –Low (5 mW)

WA-TX-03S only.

The switch has no effect when using WA-TX-03-R

Mute level adjustment

This is the received RF

signal level threshold control.

If the RF falls below this

level, the audio output is

muted. The “AF ON” LED will

go out when the audio is

muted.

Rotate to adjust

audio output

volume.

Ch. not

available LED

Power switch

“AF ON” LED

OG_WA-TB-03S_v10e 6 Circuit Design, Inc

OPERATION GUIDE

CONNECTING THE MIC

You may use a 2 or 3-line condenser microphone or dynamic microphone. You must use 3.5mm

mono plug only.

A condenser microphone requires a power supply (phantom supply) to drive it. The WA-TBT-03S

board is able to supply this phantom power via the connector.

There are various microphone types available on the market, so please consult the microphone

datasheets and if necessary add solder to the three jumper locations as shown below. These

jumpers are labeled on the WA-TBT-03S board as 3JP, 2JP and AF JP.

Two / Three wire condenser microphone Dynamic microphone or audio signal

Apply solder to 3JP and AF JP Apply solder to AF JP as shown below

OG_WA-TB-03S_v10e 7 Circuit Design, Inc

OPERATION GUIDE

Caution notice

Adjacent channel interference

In some cases, audio maybe heard on the channels immediately either side of the used channel. This is due

to a strong level of RF being received and spilling onto the adjacent channel.

OG_WA-TB-03S_v10e 8 Circuit Design, Inc

OPERATION GUIDE

DIMENSIONS

WA-TBT-03S

863 MHz

SW5 only

808 MHz

SW5 & SW4

SW5

SW4

OG_WA-TB-03S_v10e 9 Circuit Design, Inc

OPERATION GUIDE

WA-TBR-03S

863 MHz

SW1 only

808 MHz

SW1 & SW2

SW1

SW2

OG_WA-TB-03S_v10e 10 Circuit Design, Inc

OPERATION GUIDE

WA-TBT-03S

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