1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DiKsa [7]
2 years ago
13

a transmitter is operating at 150 MHz with a power of 3 W into a one-quarter wavelength vertical antenna. The receiver, which is

32.2 km away, has an antenna with a gain of 8 dB. What is the received power?
Computers and Technology
1 answer:
Bogdan [553]2 years ago
4 0

The received power will be 1.243 nW

We're given:

frequency f = 150MHz

distance of the receiver d = 32.2 km=32200m

Power of transmitter P_{t} = 3W

Antenna gain = 8dB

To find :

Power received P_{r}

P_{r}= \frac{P_{t} *G_{t}*G_{r}* \lambda^2 }{16*\pi^2*d^2}

where G_{t is transmit gain and G_{r is receive gain as refrenced to isotropic source

⇒wavelength \lambda = \frac{c}{f} where c is the speed of the light

⇒  \lambda = \frac{3*10^8}{150*10^6} =2m

G_{t}= 1*1.64 ( value of dipole = 1.64)

Now,

Antenna gain=8dB ( in decibals)

⇒10log(x)=8

⇒x=10^0^.^8=6.3095

⇒ considering isotropic receiver

⇒G_{r}=6.3095*1.64=10.3477 (dipole =1.64)

Now , using the formula

P_{r}= \frac{3 *1.64*10.3477 *2^2 }{16*\pi^2*32200^2}=1.2437*10^-^9

Hence The received power will be 1.243 nW

Leaen more about communication devices here:

brainly.com/question/14530107

#SPJ10

You might be interested in
Anyone know how to fix this
gizmo_the_mogwai [7]

Put the mouse at the top of the black part and click and hold down, and then drag it down to the bottom. And don't feel embarrassed to ask somebody lol

3 0
3 years ago
As text is typed in the _____ text box, a drop-down list displays options for completing the action, displaying information on t
pickupchik [31]

Answer:

Excel Help

Explanation:

Press F1 key to open the excel help window

Or you can also click the excel help button to launch the help window.

Type for whatever you are seeking help for and you will notice suggestions as you type something. These suggestions include online and offline results. If there are too many results then try searching offline it will narrow down the results.

After typing the text and hitting enter, the excel help returns several related topics on the searched query. You can browse through these topics and get help from excel.

5 0
3 years ago
The temperature in toronto canada was-4°c and tje temperature in brixton,england was 6°c warmer. what was the difference in temp
Oksana_A [137]

Answer:

It is 10°c difference between them

7 0
3 years ago
_________ cards contain a chip that can store a large amount of information as well as on a magnetic stripe for backward compati
wariber [46]

Answer:

Smart

Explanation:

The RFID or the radio frequency identification is an electronic device that stores information electronically. It stores and makes available the information which is stored electromagnetically, once the user is authenticated.

This technology is implemented in market places and other individual activities. It is implemented in cards called smart card for ease of payment transaction and promote online commerce (e-commerce). It is also implemented in smartphones.

3 0
3 years ago
Given the following knowledge representation, what is a simple English sentence that it represents? PTRAN agent=John object=John
Sedaia [141]

Answer:

John is from London and is on a plane to London

Explanation:

The is known as a parallel text alignment or parallel translator.

8 0
3 years ago
Other questions:
  • What type of desktop system is Sarah using in the following scenario? Sarah types the phrase “Open Document 3” onto a black scre
    12·1 answer
  • What was the attitude of the U.S. Senate towards the Treaty of Versailles, and why did they have that attitude?​
    9·1 answer
  • Assignment
    6·1 answer
  • Day 1 of seeing if anyone will buy me a psn gift card (if u do u get brainliest and thanks + alot of points
    11·1 answer
  • In what century was plastic invented ?​
    9·1 answer
  • Name TanushSAVAGE. As given in the picture, Subscribe!
    15·1 answer
  • Explain what the problems with the implementation of the function are, and show a way to fix them.// return true if two C string
    7·1 answer
  • PLS HELP MEE!!!
    12·1 answer
  • Demons I shall be your eternal nightmare
    13·1 answer
  • What is white light?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!