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Table of Contents

1. Evaluation Kit Diagram
2. Evaluation Kit Setup
3. Evaluation Kit Features 
4. Audio Test Method and Specifications 
5. RF Test Method and Specifications
6. Sales and Support 

1. Evaluation Kit Diagram

a. Antenna  

e.   3.5mm Stereo Audio Jack 

b.  HT-203 Module   

f.   SB3 Interface Board

c.   PB3 Reference Board   

g.   Power Switch 

d.   Power Jack

Your kit is configured as a 2-Node (1 Tx and 1 Rx) system.  This kit is a 
digital wireless audio 0.1 channel solution.  

Audio is on Left Channel only

.

2. Evaluation Kit Setup

This HT-203 Evaluation Kit is pre-assembled and pre-configured to work 
out of the box.  Follow the simple steps outlined below in order to 
correctly setup and begin using the evaluation kit.

1. Plug an audio cable into the audio jack on the Transmitter (Tx). Connect the 
other end of the audio cable to an audio source, such as a portable media 
player (Maximum input level is -3.5dBV).
2. Plug an audio cable into the audio jack on the Receiver (Rx). Connect the 
other end of the cable to an audio amplifier, active speaker, or headphones.*
3. Connect the battery pack or AC adaptor (6V DC, 400mA) to the power jack on 
the Tx and Rx.
4. Turn the power switches on both nodes to "on".
5. Make sure that antennas are in free space for best range, i.e. not resting 
against a surface, PCB, or body.

Audio signals will begin transmission after step 4.

Please note that because this evaluation kit is electrostatic sensitive, it is 
important to keep the Tx and Rx on electrostatic free surfaces.

*Headphones can be used for testing but since no headphone driver is included on the PB3 Rx board, the maximum 
volume level may be lower than desired.

3. Evaluation Kit Features

The HT-203 system comes preloaded with application firmware called “Standard 
Application”.  This application firmware implements a number of useful user 
interface features such as LED blinking and push button volume control.  It also 
supports customizable settings which can be loaded into the modules over Two 
Wire Serial Interface (TWSI) or via the XPD programming interface.  These 
settings are stored in a “Parameter Page” which is a file stored in non-volatile 
memory on the HT-203 module.  This section provides a brief summary of some 
commonly used features of the Standard Application.  For a full description refer 
to the document “Interfacing to WHAM2 Standard Application” (Available from 
Eleven Engineering).

A. Bond LED: 

The Bond LED displays the bond status between the Tx node 

and the Rx node, as follows: 

Solid On

Tx and Rx are bonded.

Flashing (Slow)

Node is searching for bond with its mate.

Flashing (Quick)

Tx is searching to bond with a new mate – Tx ONLY

Off

Board is powered off.

In 2-Node mode, Bond0 will start to flash when the Tx is powered on.  The Rx 
that bonds to the Tx will cause the Bond0 LED to turn solid green. 

B. Mute LED: 

The Mute LED displays the audio status of the Rx node, as 

follows:

Solid On

Audio is automatically muted due to RF interference OR audio is manually            
muted by User OR Rx is searching for bond

Off

Audio can play normally  

C. Volume / Mute Control: 

Volume control is setup by default in 

“Global” mode meaning volume/mute can be adjusted from any node of the 
system and all nodes share the same global settings.  Other volume modes can 
be setup using the parameter page.

Volume buttons on the Tx and Rx will increase/decrease the volume audio level 
by 1dB per button press for a total of 70 steps.  Pressing and holding a volume 
button will ramp the volume quickly.  Maximum volume is 0dB and minimum 

www.ElevenEngineering.com

   

 

 

Subject to change without notice.

DO4952| 

2009.11.05

@2009 Eleven Engineering Inc. XInC

TM

, XInC2

TM

 and their associated logos are trademarks 

     of Eleven Engineering Inc. Multiple Patents and Patents Pending.  Other logos, designs, titles 

     or phrases may be trademarks of Eleven or other entities.

Содержание HT-203

Страница 1: ...eful user interface features such as LED blinking and push button volume control It also supports customizable settings which can be loaded into the modules over Two Wire Serial Interface TWSI or via the XPD programming interface These settings are stored in a Parameter Page which is a file stored in non volatile memory on the HT 203 module This section provides a brief summary of some commonly us...

Страница 2: ...XPD Port Interface The XInC Programming and Debugging XPD port is used to download firmware hex files to the HT 203 module using an XPD Programming Module available from Eleven Engineering For more information regarding the XPD Port XPD Module and the procedure for programming modules refer to the document Downloading Firmware to XInC Processors Available from Eleven Engineering H Two Wire Serial ...

Страница 3: ... ESD safe surfaces and ideally elevated above surface on ESD safe mounts Cables should be as far away as possible from equipment that can introduce noise into nodes i e CRT monitors AC Transformers etc Batteries can be used to eliminate 50 60Hz noise The antenna orientation shown is for audio testing A different antenna orientation may be better suited for maximum RF range performance Evaluation K...

Страница 4: ... to overall RF range performance Layout of the testing space affects RF performance Reflections of the RF can cause interference Obstacles such as the tester s body walls and cubicles can affect the range wherever possible keep node antennas in line of sight Other RF devices operating in the 2 4GHz spectrum can affect the RF performance such as microwaves wireless routers and other equipment shari...

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