arduino sending RTTY via HX1 radiometrix

I used the arduino kit to send text in RTTY mode through Radiometrix HX1 Transmitter.

You can find more details here.

Also an rtty library can be used by including it to your program and just define an object and TX data.

I used 144.800 MHz. and received in University of Khartoum ground station.

Connecting Android Smart phone to Transceiver

Today I have built an interface circuit that connects the audio of the Android smart phone to the PTT and the input of the transceiver.
This circuit was built to send Images from mobile using SSTV software.

First, It was built in bread board just for testing then it will be built in perforated board.

The circuit diagram and more details can be found in This Link.

ITSMF launching event

itSMF Sudan Emerging Chapter Launching Event, ITIL standard, IT service management best practices. 25/5/2013

TEgypt Software workshop

Attending Software Engineering guidelines at TEgypt training center at 1:00 pm