Upcoming SlideShare
×

# Wat question papers

778 views
663 views

Published on

Published in: Education
0 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
Your message goes here
• Be the first to comment

• Be the first to like this

Views
Total views
778
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
19
0
Likes
0
Embeds 0
No embeds

No notes for slide

### Wat question papers

1. 1. THM, FRIEDBERG WAT Question papersWAT translated German Question paper with solution UdaySharma 2/8/2013
2. 2. WAT Question papers WAT Exam 2002/2003Task 1: free-space propagation (20 points)Between sites in the picture is a radio link can be established.Given:2 GHz frequency, antenna gain = 27dBi each gant, cable loss each aKabel = 2dB. Distance 10km,according obstacles picture (not to scale).looking for:a) What is the antennas must be mounted at least? Consider When the radio field viewing onlythe influence of the free-space propagation.b.) = Which transmit power PTX? [dBm] must send the RF transmitter, if the required receivedpower min. PRX =-10dBm should be?c.) Which wattage corresponds to the one found in b.) power?d) What other effects could, in this wireless field computing a role play?Task 2: Antennas (7 points)An omni-directional cellular antenna with a veritkalen Öffungsbreite of 8 ° (vertical HPBW = 8)and a gain of 11dBi = Gant is a feeder cable Fed (3 dB attenuation) with 10 watts.a) What is the equivalent isotropic radiated power (EIRP) in the main beam direction?b.) The antenna has an electrical tilt of 4 °b1.) Sketch the image in the lower right vertical AntennendiagramUday Sharma Page 2