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.
The composition of solid waste from a residential community is as follows: Component Percent by weight Combustibles ---
QUESTION 1 What are the main steps involved in implementing S&OP as part of an ERP implementation? QUESTION 2 The ERP project schedule is the basic control tool used to
Acquisition Section-Staff Activity Area of library building in libraray management The acquisition work consists of selection, approval (by competent authority, Library commit
Question 1: "One of the main challenges of hotel management today is the rapid changes in customer requirements, trends and tastes, resulting in the necessity for frequent exte
Checking with the catalogue: The individual classifier who is allotted a set of documents for processing will first check each item in the set with the library catalogue.
QUESTION 1 Describe the powers the Permanent Secretary may exercise for the purpose of enforcing the Occupational safety and Health Act, 2005. QUESTION 2 (a) Explain th
The most important test of a new organization comes when it is hit by a major catastrophe. It is required to manage such emergencies intelligently and forthrightly with the news me
scientists use what to find answers to problems
ALA Rules : American Library Association. ALA Catalog Rules: Author and Title Entries. - Prel 2nd ed. - Chicago: American Library Association, 1941. Within two decades of
Question 1: (a) Discuss the use of the following fuels in the Mauritian context. Comment specifically on their impact on the economy and on the environment. i. Coal ii.
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