eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences December 2009 21 3 525 532 jusps-B 1164 article J. Singh 1 Shyampati 2 Lalmani 3 Department of Physics, G.G.M., Science College, Canal Road, Jammu (INDIA) Department of Physics, National Institute of Technology, Srinagar, 190006, Kashmir (INDIA) Department of Physics, National Institute of Technology, Srinagar, - 190006, Kashmir (INDIA) <p style="text-align:justify">The pulsing hiss emissions recorded during daytime in the frequency range of 50 Hz - 15 kHz at low latitude station Jammu (geomag. lat. = 22^o 26^/ N; L = 1.17) are reported. The reported pulsing VLF emissions is a rare phenomena at low latitudes and the spectrograms of pulsing VLF hiss emissions clearly show band limited spectrums regularly pulsing with almost equal period of the order of few seconds in the frequency range of ~ 3 to 8 kHz. Generation and propagation mechanism of these emissions are briefly discussed.</p> https://ultraphysicalsciences.org/paper/1164/ Quasi-periodic pulsing hiss VLF Hiss waveguide mode.