ISDR Workshop conducted at NIAR, Hyderabad

We conducted an ISDR workshop at NIAR, Hyderabad for students from Mahaveer Institute of Technology. The workshop was fashioned with a briefing on the technology of ISDR and a short demo of the working knowledge of ISDR. A batch of four students  attended the workshop and successfully completed and tested the ISDR. The students were quite amazed with the ISDR Technology and Mr. Sudhinraraja,VU3PWT who conducted the workshop also gave a good working knowledge on setting up the Inverted V Dipole antenna.

Venue: NIAR, Hyderabad.
Date: 24th & 25th March 2012.
Workshop: Indian Software Defined Radio Receiver.

Sudhindraraja, VU3PWT giving a briefing on ISDR

Sudhindraraja, VU3PWT clearing students doubts

Sudhindraraja, VU3PWT and Jacob, VU2JOS handing over the ISDR kits

Sudhindraraja, VU3PWT and Jacob, VU2JOS handing over the ISDR kits

Students started assembling the ISDR Kits

Students assembling the ISDR Kits

Students from various colleges of Hyderabad visited during the workshop

Students from various colleges of Hyderabad visited during the workshop

Students tested their assembled ISDR using WINRAD

Demo of HAM Radio at Sri Gayathri English Medium High School, Anantapur, AP

Our RnD Team packed their bags for a drive to Sri Gayathri English Medium High School at Anantapur in Andhra Pradesh. Sri. Srinath, Correspondent invited the team to the school to give a demo to the students on HAM Radio and the current technology in wireless communication. We were welcomed by Sri. Srinath and his team of 20 students.

Click Here: HAM RADIO PRESENTATION

We first setup the antenna on the roof of the school in the chilled weather of 40 degrees Celsius.

 

Later on we setup the equipment for the demo purpose and during the process of setup the students were automatically attracted by the HAM Radio equipments.

After a brief seminar the students were given the exam board models to have an hands on experience

Below are the pics of the all the students that were present for the demo.

After a while the team setup the demo exam board for the students to have an hands on experience.

DDS Update.......

Good Morning Everyone!!!

Great News in the RnD Lab today. We got the DDS PCB done and soldered all the components and Yes the AD9833 mini component too(check the pics). After a lot of anticipation and nerve racking SMD soldering we got the DDS powered up and going. To our surprise, in the first shot the DDS was working and required no alteration at all. The New DDS PCB has a feature of varying the Frequency UP and DOWN. Also another added feature is the SLOW and FAST frequency variation.

Check out the Pics below of our new pride:-

Front Panel of the DDS

Back portion of the PCB of the DDS

The size of the AD9833

ISDR on Examination Board

Greetings!!!!

We have built an ISDR on an examination board. Yes! another examination board is modified to make an ISDR and looks very nice and beautiful. The ISDR was built on the Exam board so that we can build it spaciously and easy for anyone to understand the connections and working properly. As its a very nice way to display the ISDR and give a demo. And mainly most students like to build it on the exam board.

 The ISDR board has both UHF Connector and BNC Connector giving the user the option to use any connector at freewill. The ISDR main PCB is the same as the one used in the regular ISDR that we have been publishing. The controls - Mono Jacks (Audio signals), Binding Post (Power Supply), LED and switch have been consolidated onto the board below the ISDR PCB.

Here are some picture for you to have a look.

ISDR on Examination board

ISDR Control Panel

Main board of the ISDR mounted on the Exam Board

UHF and BNC Connector

GR-40 Receiver on Exam Board - PART 2

GR-40 Exam Board Model

Greetings Everyone!!!

If you jog your memory to last year (just 2011) we built a GR-40 Rx. on an examination board for fun, creativity, knowledge and demo purpose. Oh! for students too.

Well there is slight difference, we have added BNC and UHF connector giving the option of choosing any connector you want. We just made this for instruction purpose and here are the instructions on how to build it.

Click here to download the PDF

GR-40 Exam Board Model

GR-40 Exam Board Model

Control Panel

GR-40 RX. card and VFO card

UHF and BNC connectors (choose any connector you want)