Q 1.11 How can a satellite be used to broadcast an event to public?
Satellites are used widely to broadcast special events such as Olympics, cricket and football matches, car or maritime rally, war…
Q 1.12 What is the permitted latency for satellite communications recommended by the ITU?
ITU-T Recommendation G.114 should be consulted. The recommendation provides guidance about effects of end-to-end one-way delay (latency) on voice communication…
Q 1.13 (a) What are the considerations for military use of satellite communication?
Communication and transmission security coupled with low probability of detection and interception, survivability, terminal robustness, coverage and connectivity in areas…
Q 1.13 (b) How are the considerations for military us of satellite communication mentioned above effected in practice?
Communication security is obtained through highly secure encryption techniques at originating points. The strength of chosen encryption depends on the…
Q 1.14 How to implement security in satellite communication?
Please see answer to the previous question.
Q 1.15 Are K-band (18-27 GHz) satellite links affected by rain, time-of-day, clouds and sandstorms?
K-band satellite links are severely affected by rain. As an example, for the temperate continental climate regions of the USA…
Q 1.16 What is Indian National Satellite System?
As the name suggests, Indian satellite system or INSAT is a satellite communication system that serves India. It has been…
Q 1.17 In which way are digital methods superior to analogue on satellite links?
Digital methods offer the following advantages over analogue satellite links. Digital coding improves robustness of radio frequency to noisy satellite signals, typical of a satellite receiver, to deliver high quality reproduction…