Xhdata D-808 Schematic Jun 2026

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If you're using OpenXava 7.0 or newer look at the new instructions

Configuring your OpenXava 6.x (or older) application to go against MS SQL Server is very simple, basically you have to install the JDBC driver for MS SQL Server and define correctly the datasource. You don't need to touch any code of your application.

We assume you have already installed and running MS SQL Server.

Download the JDBC driver for MS SQL Server

Download the MS SQL Server driver from here: https://docs.microsoft.com/sql/connect/jdbc/download-microsoft-jdbc-driver-for-sql-server

You will download a file like this: sqljdbc_7.4.1.0_enu.exe (the version numbers may vary) that is a self-extracting file for Windows or sqljdbc_7.4.1.0_enu.tar.gz for Linux/Mac. Uncompress it to find inside a file called mssql-jdbc-7.4.1.jre8.jar (or so), this last file, the .jar, is the JDBC controller we're going to use.

Create a classpath variable in Eclipse

In order you can connect to MS SQL Server from Eclipse we're going to declare a classpath variable that points to the MS SQL Server JDBC driver, so you can use it in any project you need easily. For that, in Eclipse go to Window > Preferences > Java > Build Path > Classpath Variables where you can add the new variable:

You can call the variable MSSQLSERVER_DRIVER instead of DB_DRIVER if your prefer. The path is the path of the JDBC driver, in our case the path of mssql-jdbc-7.4.1.jre8.jar we have just downloaded.

Add the DB_DRIVER variable to your Eclipse project

In the project you're going to use MS SQL Server you have to add the variable declared above. Click with right mouse button on your project and then choose Java Build Path > Configure Build Path...:

Then select the Libraries tab:

With this we have the driver available for the development environment.

Add the JDBC driver to the production Tomcat

Adding the driver in production is much easier. Copy mssql-jdbc-7.4.1.jre8.jar to the lib folder of your Tomcat. Done.

Adjust your datasource definition

For development edit web/META-INF/context.xml of your Eclipse project, and for production edit conf/context.xml of your Tomcat to adjust the datasource to point to MS SQL Server, something like this:

<Resource name="jdbc/MyAppDS" auth="Container"
	type="javax.sql.DataSource"
	maxTotal="100" maxIdle="20" maxWaitMillis="10000"
	username="root" password="ao49fmsk"
	driverClassName="com.microsoft.sqlserver.jdbc.SQLServerDriver"
	url="jdbc:sqlserver://localhost:1433;databaseName=myappdb"/>

The differences are the driverClassName and the url. The final part of the url, myappdb in this example, is the name of your MS SQL Server database. Obviously, instead of localhost you should put the address of the server that hosts MS SQL Server, and also put the correct username and password.

Xhdata D-808 Schematic Jun 2026

connecting the two main boards, which must be handled carefully during disassembly. (like the ferrite rod upgrade) or component-level photos from community teardowns? XHDATA D-808 Radio

Are you looking to a specific issue (like no sound or no power)? xhdata d-808 schematic

Introduction The XHDATA D-808 is a highly celebrated portable worldband radio among shortwave listeners, DXers, and radio enthusiasts. It packs impressive performance into a compact frame, offering FM-RDS, LW, MW, SW, and AIR bands alongside Single Sideband (SSB) capability. connecting the two main boards, which must be

The engine of the receiver's schematic is the Silicon Labs Si4735 DSP Chip . Unlike traditional dual-conversion superheterodyne radios requiring numerous local oscillators and intermediate-frequency (IF) transformers, the D-808 digitizes the analog signal path early. Introduction The XHDATA D-808 is a highly celebrated

The heart of the D-808 is the DSP chip. This is the same chip found in the Tecsun PL-330 and PL-990. Luckily, Silicon Labs publishes the official datasheet and application notes for the Si4735 (easily found via PDF search). This datasheet acts as a pseudo-schematic for ~70% of the D-808's functionality, including: