Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Question:
(a) A HF digital radio data link operates over a distance of 1000 km. Depending on transmission frequency, reflection can occur from the F2 region of the ionosphere at a virtual height of 320 km where the electron density is 1.3 x 1012 el/m3 and from the E region at a virtual height of 110 km where the electron density is 1.2 x 1011el/m3.
(i) What is the Maximum Usable Frequency (MUF) for the path? (ii) Over what transmission frequency range will there only be an F2 region reflected path? (iii) When both E and F region reflected paths occur together, estimate the maximum advisable bit rate by determining the difference in time delay between the two paths.
(b) Ionospheric propagation delay introduces errors in range-finding by satellite navigation systems such as GPS. Determine the extra time delay (compared with free space propagation) and hence, the range error at the GPS frequency 1227.6 MHz for a path through the ionosphere at an angle of 70o to the vertical. The electron density of the ionosphere is given by a constant 3 x 1011el/m3 from 200 to 400 km height and zero elsewhere and the velocity c is 299,792,458 m/s.
QUESTION 1 The Ministry of Information Technology has recently launched a public debate on how to make Information Technology the Fourth Pillar of the Mauritian economy. Using
Drawbacks Pooling up the necessary funds to opt for centralized cataloguing may be difficult for some libraries. Because of local variations it may be difficult to go
Problem: a) Authentication is the mechanism whereby a system securely identifies their users. Authentication system provides answers to the following questions: - Who is t
Request for Proposal (RFP) The RFP document for procurement of consultant is similar to tender document for procurement for works and goods. RFP provides all the instructions
Just-in-Time Inventory Management This is an approach to dealing with materials inventories that emphasizes the elimination of all waste and the continual improvement of t
What is the meaning and Purpose of Education in this age of technological advancement?
QUESTION 1 (a) Based on the Strategic Implementation Framework, discuss the various factors that should be considered when implementing a strategic plan. (b) What are the ma
Factors Affecting Organisational Structure-process of structuring-LIBRARAY MANAGEMENT A manager has to design a structure that will best suit the specific requirements of his
O u t put of quality assurance process The outputs of quality assurance process are: O rganisational process assets updates: elements of organisational process ass
Dictionary Catalogue: The general meaning of the word 'dictionary' is that it is a reference book, giving information on particular subjects or on a particular class of words,
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd