1) You are performing a path analysis of a 24 mile link between two facilities. The path profile reveals three significant obstructions. The first is located 8 miles out and is 35 feet high. The second is 14 miles out and is 60 high. The third is 18 miles out and is 80 feet high. The frequency is 800Mhz.
2. Which obstruction should we base our design on? Explain fully why?
3. A paging company operates a paging transmitter on a frequency of 740Mhz. What is the reachable range if the transmit antenna is located at 450' and we assume the receivers are located 3' above the ground (belt level?)
4. How tall must the transmitting antenna in problem 3 be to reach customers at 40 miles?
5. What is the formula for calculatiing the radius of the fresnel zone?
6. What is the formula for calculating C?
7. What is K?
8. What is the normal value assumed for K?
9. The following path profile has the ground level for HA = 555', ground level for HB = 430', ground level for the obstruction at 8 miles is 530', ground level for the obstruction at 14 miles is 530', and ground level for the obstruction at 18 miles is 500'. How much must we correct the value of HA & HB for HASL if the worst case obstruction is the one at 8 miles? You are only showing the correction for ground level - you DO NOT have to write a complete solution analysis.
