Category:Time and frequency standards

Subcategories

This category has the following 2 subcategories, out of 2 total.

Media in category "Time and frequency standards"

The following 25 files are in this category, out of 25 total.

• 
  Chas. C. Wylie setting back clock at Naval Operatory LCCN2016826733.jpg 7,048 × 5,546; 2.28 MB
  
• 
  Early NBS crystal oscillator frequency standards.jpg 700 × 395; 66 KB
  
• 
  Greenwich Time Signal1970.jpg 4,000 × 3,000; 4.99 MB
  
• 
  HoraLegal(CSodré)1914.jpg 1,600 × 1,151; 525 KB
  
• Israeli Broadcasting Authority Time Signal.ogg 5.9 s; 14 KB
  
• 
  Riefler clock NIST.jpg 314 × 1,090; 51 KB
  
• 
  Riefler Fig.4.png 188 × 572; 114 KB
  
• 
  Riefler Fig.6.png 190 × 563; 112 KB
  
• 
  RieflerClock.jpg 700 × 1,600; 559 KB
  
• 
  Shortt Synchronome free pendulum clock.jpg 2,700 × 3,600; 882 KB
  
• 
  Tuning fork oscillator frequency standard.jpg 447 × 594; 47 KB
  
• 
  WWVNBSRadioStation 001.jpg 5,948 × 4,779; 20.23 MB
  
• 
  WWVNBSRadioStation 002.jpg 5,918 × 4,629; 23.6 MB
  
• 
  WWVNBSRadioStation 003.jpg 6,068 × 4,749; 25.48 MB
  
• 
  WWVNBSRadioStation 004.jpg 6,008 × 4,749; 25.58 MB
  
• 
  WWVNBSRadioStation 005.jpg 6,008 × 4,749; 24.71 MB
  
• 
  WWVNBSRadioStation 012.jpg 6,068 × 4,779; 26.43 MB
  
• 
  WWVNBSRadioStation 013.jpg 6,324 × 4,779; 27.64 MB
  
• 
  WWVNBSRadioStation 014.jpg 5,452 × 4,148; 25.81 MB
  
• 
  WWVNBSRadioStation 015.jpg 5,993 × 4,885; 25.04 MB
  
• 
  WWVNBSRadioStation 016.jpg 5,993 × 4,885; 23.92 MB
  
• 
  WWVNBSRadioStation 017.jpg 6,309 × 4,839; 26.49 MB
  
• 
  WWVNBSRadioStation 018.jpg 6,309 × 4,839; 22.09 MB
  
• 
  WWVNBSRadioStation 019.jpg 5,648 × 4,554; 19.03 MB
  
• 
  WWVNBSRadioStation 020.jpg 6,249 × 4,839; 20.44 MB