Tamilnadu /Tamil Radio frequencies

This reception is with respect to Tirunelveli/Short wave receptions can be heard all over Tamilnadu

MW service 

1. 1197KHz - Tirunelveli Radio

2. 1053KHz- Tutucorin 

Tropical /Short wave Radio 

chennai 

05.45 a.m. - 08.15 a.m. 4920KHz

08.30 a.m. - 10.00 a.m. 7380KHz

11.40 a.m. - 03.00 p.m. 7380KHz

05.30 p.m. - 11.10 p.m. 4920KHz

BBC

12.830KHz  -9.15pm -9-30PM

China Radio

13600-9570KHz 7.30-9.30 Morning & Evening

Over seas service to lanka

0530-0615 - 1053  7270 9835 11985 

0530-0615 - 11740 13795

0645-0900 - 1053

1630-1645 - 1053

1645-1745 - 1053 7270 17510 

1645-1745 - 1134 9810 13695

1745-1830 - 1053

2030-2100 - 1053

sinchala 

1830-2030 --  1053 7270 9820 15050 (DRM)  

FM 

1. 101- Nagercoil

2.100.5-Kodai

3.102.6 Tiruneleli

4.93.5 Surian FM

5.106.4 Hello FM

English

GOS.IV (English) 2315-0115 11935 13695 17670

GOS.IV (English) 2315-0115 9445 11580 

                              2315-0115 7550 (DRM) 9950 (DRM) 11670

GOS.V (English) 0215-0400  9910 11620 11740

                             0215-0400  7550 (DRM) 9445 9950 (DRM) 11670 

GOS.I (English) 0415-0615  11645 (DRM) 13605 (DRM) 

GOS.II (English) 1530-1630  15030 15410 13605

GOS.III (English) 1900-2030 9690 11620 13710  

USB Driver Development - Windows

There are many low cost controllers/ development boards  have USB support

1. STM32f4_discovery  

2. TM4c123

     

3.PSOC5 

They have buildin pheripherals like I2C, SPI, UART , CAN ... Making a protocol converter/ other controllers using these devices makes the price compatative ..

There are 4 ways one can write driver to these devices

1. Libusb 

2.WinUSB

3.Custom Drivers

4.CDC /Serial Driver

Libusb 

             Libusb is best for devices which requires support to other OS like Linux , MAC OS , BSD ..

It maintains common calling conventions & data structures across defferent platforms .. 

Application 

       |

User Mode Driver (dll)

       |

Kernel Mode Driver (Sys)

       |

USB Host Driver (Comes along with OS)

WinUSB 

            WinUSB only work with Windows platform .. 

Application 

       |

User Mode Driver (dll)

       |

Kernel Mode Driver (Sys)

       |

USB Host Driver (Comes along with OS)

Custom Drivers :

              Instead of using the above two drivers one can prefer to write a custom driver & maintain proprietary  issues , avoid exposing the data transfer format/ protocol .. [Still some one can hook a  USB analyser & see whats happening ]

Application 

       |

User Mode Driver (dll)

       |

Kernel Mode Driver (Sys)

       |

USB Host Driver (Comes along with OS)

Virtual Serial Driver :

              This way one can avoid supplying a driver for the device & use the pre-supplied windows USB class drivers ..

Application 

       |

Serial Port Accessing Interface 

Red Color Shows work required to do... Green - driver /Software already available ..