National Tracking System for Missing and Vulnerable Children

      This portal is dedicated to the cause of tracking Missing and vulnerable Children.
This portal holds the database of children, who are staying at different Child Care Institute.
This is an Initiative of Ministry of Women and Child Development, Government of India to track the progress of children of every CCI in the country. It also aims to track down every missing child of this country.

( http://www.trackthemissingchild.gov.in/ )

SNAP The Mobile Intruder

If you want a tool that will help you identify the person who
has stolen your smartphone or tried to open screen lock....
Following are some mobile apps which will help you :)

   These apps uses front camera to click a photo of the thief who has
attempted to unlock your phone with wrong code.
It then email the picture to you along with GPS locattion, making
it easy to track & identify thief.

1) Lockwatch Anti-Theft:

 

Telescope Making Course In Mumbai

Handy HAM Radio Websites

HAM Radio-  “How do I…?”

  These websites are full of information that you can use as you try new things.

1) ARRL ( http://www.arrl.org/ )
Use:- Many useful regulatory, educational, operating, and technical items and links.

2) QRZ.com ( http://www.qrz.com/ )
Use:- Call sign lookup service and general-interest ham radio portal.

3) eHam.net ( http://www.eham.net/ )
Use:- News, articles, equipment swap-and-shop, product reviews, and mailing lists.

What is Ham Radio

Amateur Radio, or Ham Radio, is a fun and exciting hobby including a vast array of activities:

•        Talking around the world without wires.

•        Talking locally through repeaters.

•        Emergency communications.

•        Public service communications.

•        Contests and awards.

•        Legacy communication modes like Morse code and 

         Radioteletype  (RTTY).

•        New communication modes like digital packet, Automatic

         Position Reporting System (APRS), and spread spectrum.

•        Amateur radio satellites in space.

•        Foxhunting (using “radio direction finding” techniques to find a

          hidden  transmitter).

•        Moonbounce (talking by bouncing radio waves off the moon).

•        And much, much more..

You can hear the ISS (International Space Station):

The amateur radio station on the ISS can be received using very simple equipment.

Astronaut Sunita Williams Enthralls 1,000 Flagler Students in a Ham Radio Chat From From ISS:

Astronaut Sunita Williams KD5PLB on the ISS.

HAM Radio Equipment’s:

Ham Radio Antenna’s: 

Getting Licensed:

    This is the Only Hobby where people have to appear for an examination conducted by the Ministry of Communication and IT. Those clearing the exam are issued the license to operate high power long and short range wireless equipment.

Licensing requirements are different in every country with different rules, privileges, and classes of license.

Listen to the natural broadcast of Jupiter

                                   

   This website contains the Technical details of the antenna and receiver used for receiving natural radio emissions from Jupiter at 20.1MHz. The antenna and receiver discussed in this site is based on the design given by NASA Radio Jove Program.

Natural radio emissions from Jupiter or from Sun are detected by using a dual dipole array as an antenna and with a sensitive receiver. The RF voltage developed at the antenna terminals is amplified with the RF amplifier and converted in to audio frequencies using a mixer. The audio signal thus generated is recorded on PC through a sound card in ‘wav’ format. Also a strip-chart recorder software is available to generate the strip-chart of data coming through sound card.

( http://receiverforjupiter.tripod.com/ )