Time and Frequency Standards Laboratory
The Time and Frequency Standards Laboratory is a part of the National Physical Laboratory in New Delhi which maintains and calibrates the Indian Standard Time.
Features of the Time and Frequency Standards Lab include:
- Four caesium and rubidium atomic clocks
- HF broadcast service operating at 10 MHz under call sign ATA to synchronise the user clock within a millisecond. This service has been discontinued as of today.
- An innovative time service via telephone line known as Teleclock service was launched on 28 July 2009.[1] After successful commissioning this type of service in Nepal and Saudi Arabia, initiation of similar service in SAARC countries are being planned.[2]
- INSAT satellite-based standard time and frequency broadcast service which offers IST correct to ±10 microsecond and frequency calibration up to ±10-10.
- Time and frequency calibrations are made with the help of pico- and nano-seconds time interval, frequency counters, and phase recorders.
References
- ↑ http://www.nplindia.org/launching-mobile-teleclock
- ↑ http://www.nplindia.org/time-and-frequency-standards
External links
This article is issued from Wikipedia - version of the 7/13/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.