Previous in Forum: RF Emission   Next in Forum: Project feedback - LORA + GPS chip recommendations (not LoRAWAN)
Close
Close
Close
14 comments
Anonymous Poster #1

5G Network

06/28/2020 4:00 PM

Request openion/information on the following:

What is the best advantages and what is the worst disadvatages of 5G Network?

Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".
5
Guru

Join Date: Mar 2007
Location: by the beach in Florida
Posts: 33320
Good Answers: 1810
#1

Re: 5G Network

06/28/2020 5:59 PM

Best = speed

Worst = range

__________________
All living things seek to control their own destiny....this is the purpose of life
Reply Good Answer (Score 5)
Guru

Join Date: Apr 2010
Location: About 4000 miles from the center of the earth (+/-100 mi)
Posts: 9753
Good Answers: 1120
#2

Re: 5G Network

06/28/2020 6:00 PM

On the negative side, there has been some concern about interference with weather satellites detecting water vapor in the atmosphere. Whether it is justified or not is uncertain.

https://www.nature.com/articles/d41586-019-01305-4

https://www.digitaltrends.com/mobile/5g-weather-satellite-interference/

Reply
3
Active Contributor

Join Date: Mar 2020
Posts: 12
Good Answers: 1
#3

Re: 5G Network

06/28/2020 11:24 PM

Advantage is space in the frequency range that it uses, for one thing. It uses high frequencies and because of that, it can have more antenna arrays in a given area compared to lower frequencies such as 4G and 3 G. Plus it can and needs to use lower power. But again, the antenna arrays are smaller as the higher the frequency the smaller the antenna and in those frequencies the antenna is usually high gain for the tower. But tower is actually not true because most antenna arrays in cities will either be on buildings, several to a building, or on telephone poles. Most will be smaller than the solar panels that power them and some may even be hidden by LED light arrays, just to reduce vandalism.

However, the disadvantages are again caused by the area the spectrum uses. Grills, aluminum grids on windows, rebar in buildings, all can cause signal bounce. We will see the same thing with the newer generations of wifi routers as well. So that means that certain types of blinds will effect the signals from the phone companies. Though the antennas are smaller and do not require the towers of 3 and 4 G they still need loads of antennas to coover a certain number of users. One estimate is at first companies will need to bring in antenna assemblies to concerts and sporting events to handle the high number of users at those locations, along with portable server stations.

In countries like Jamaica or areas like the Rockies and Appalachians it may not even be feasible to bring in 5G except for point to point communications from 4g tower to 4g tower due to terrain and other problems, not to mention the problems with how buildings are constructed in some regions. The lower frequencies of 3 and 4 G networks will penetrate cement and rebar construction like used in the Caribbean better than 5G, for instance. Plus, as distance from antenna arrays go up, the phones transmit to the arrays at higher power levels thus using more battery and due to the higher power levels pose more possible cancer risk even though phones are designed to a standard to reduce risks.

But, the scare tactics of Youtube should be ignored. Most of us have been raised with microwave ovens in our homes for over twenty years and cancer has not increased. Even with the increase in mobile phone use over the past twenty years, cancer has actually not increased. So cancer risks are pretty minimal, especially from phones that will transmit at 1/100th thepower of your microwave at basically the same frequencies and the advantage of tower design is the main antenna for transmitting is omni directional to use lower power and reach the most of its operational area, while the rest of the array is directional so it can recieve the 'weak ' signals from the mobile phones. Most users face almost zero radiation risk from 5 and 6G frequencies and actually get more radiation exposure from their bluetooth earpieces.

Hopefully that helps.

Reply Good Answer (Score 3)
Guru
United States - Member - Born, raised halfway 'round .....

Join Date: May 2010
Location: Metro.Manila, Philippines.
Posts: 1234
Good Answers: 25
#7
In reply to #3

Re: 5G Network

06/29/2020 10:00 AM

"But, the scare tactics of Youtube should be ignored. Most of us have been raised with microwave ovens in our homes for over twenty years and cancer has not increased. Even with the increase in mobile phone use over the past twenty years, cancer has actually not increased. So cancer risks are pretty minimal, especially from phones that will transmit at 1/100th thepower of your microwave at basically the same frequencies"

Cancer cases may not have notably increased due to lack of health studies on non-ionizing vs ionizing RF frequencies, yet it doesn't mean RF radiations is not a contributory factor..

In which case Why would a government health agency like the FDA restrict the operations of a kitchen appliance like a microwave oven? The FDA put a cap on the maximum allowable emitted power density any microwave oven can radiate to a maximum of 1 mw / cm2 ?

__________________
vsar
Reply
Active Contributor

Join Date: Mar 2020
Posts: 12
Good Answers: 1
#9
In reply to #7

Re: 5G Network

06/29/2020 12:12 PM

And if you check..RF emissions from cell towers have similar limits based upon distance from ground etc

Radiation emission laws have been part of spectrum regulations from before CB radios were licensed for use. In fact it was power output for radiation reasons that limited CB to Five watts PEP.. and your mobile phone is limited to less. .way way less due to the higher frequency. Higher the frequency the less allowable power.

Even Amatuer Radio operators and businesses are required to do an analysis concerning radiation of emissions to neighboring properties.. which is why towers are used..in some cases.. because the tower succeeds in two areas.. it moves the emissions point. the transmitting antenna..away from people..and it allows further range for the signal.

5G id no different than CB concerning line of sight emmissions..it just is a higher frequency. But due to the frequency being so high and the power being limited it can have more antenna sights in a given area. Which increases the number of signals that can be recieved necause of more recievers. This is why they say that more users can use it. The sigmal foes not transmit as far so more transmitters can use the same frequencies without interfering with eachother. But you average cell tower of any style will have around twenty reception antennas gor every transmission antenna

Reply
Guru
United States - Member - Born, raised halfway 'round .....

Join Date: May 2010
Location: Metro.Manila, Philippines.
Posts: 1234
Good Answers: 25
#10
In reply to #9

Re: 5G Network

06/29/2020 4:07 PM

Understood, the question remains, If there is no danger to everybody's health..

Why would a government health agency like the FDA restrict the operations of a kitchen appliance like a microwave oven? The FDA put a cap on the maximum allowable emitted power density to any microwave oven can radiate to a maximum of 1 mw / cm2 ?

__________________
vsar
Reply
Power-User
United States - Member - New Member

Join Date: Mar 2007
Location: Wisconsin USA
Posts: 287
Good Answers: 24
#11
In reply to #10

Re: 5G Network

06/30/2020 11:07 PM

Because they are appointed by politicians who want to be seen as protecting the public.

It is one of the same problems with nuclear power. the people are scared of what they don't understand so the government passes overly stringent safety regulations. Then the people say it must be really dangerous, just look at all the safety regulations they had to pass.

Just because it is regulated does not necessarily mean it is dangerous. One has to look at the actual science and data.

__________________
Troy
Reply
Participant

Join Date: Jul 2020
Location: Boston, MA, USA
Posts: 1
#13
In reply to #11

Re: 5G Network

07/01/2020 2:12 PM

I had to do a double take, because I could see the FCC restricting power, but the FDA imposing these laws seemed a bit counter intuitive.

I find a lot of people who are overly frightened by radiation lack good references to address these concerns. A radiation safety officer I worked with pointed me to the HSP when I acquired a vintage watch and I find it's a good place to get answers. Won't get them to listen though.

-Kyle

__________________
-Kyle
Reply Off Topic (Score 5)
Guru
Engineering Fields - Mechanical Engineering - New Member Hobbies - CNC - New Member

Join Date: Aug 2006
Location: Western Australia
Posts: 767
Good Answers: 58
#4

Re: 5G Network

06/29/2020 4:40 AM

And there I was thinking that 5G is responsible for the Covid outbreak as well as the fires in Australia.

Good answer.

__________________
If you can't explain it simply, you don't understand it well enough. (A.E.)
Reply Off Topic (Score 5)
Guru

Join Date: May 2018
Location: Under the spreading Bunya Trees, South Burnett, Queensland, Australia
Posts: 764
Good Answers: 64
#5

Re: 5G Network

06/29/2020 6:05 AM

Disadvantage the higher the frequency the more line of sight the transmitter and receiver need to be in. Higher frequencies travel shorter distances and suffer more attenuation from dust and water vapour. When 3G and 4G don't work reliably in the bush already, 5G will be only for city dwellers.

Advantage city dwellers are more numerous and can vote more useless politicians into power so they can replace a flakey system with non working system and tell us how good the speeds will be. Just look at the NBN fiasco in Aus, NBN (No Bloody Network!)

__________________
Hare today, goon tomorrow!
Reply
Commentator

Join Date: Jul 2019
Posts: 83
#6
In reply to #5

Re: 5G Network

06/29/2020 9:48 AM

Indeed the advantages are very less in this case.

Reply
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32142
Good Answers: 838
#8

Re: 5G Network

06/29/2020 10:54 AM

Compared to what?

__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Reply
Commentator

Join Date: Jul 2019
Posts: 83
#14
In reply to #8

Re: 5G Network

07/02/2020 9:43 AM

Advantages are more than the disadvantages.

Reply
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32142
Good Answers: 838
#12

Re: 5G Network

07/01/2020 3:00 AM

The <...best advantages...> is that it is so easy to talk to anyone on the planet. The <...worst disadvatages...> is the decline in people wanting to talk.

__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Reply
Reply to Forum Thread 14 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".
Copy to Clipboard

Users who posted comments:

4b50 (1); BroAdam (2); msbettyhunt (2); PWSlack (2); Rixter (1); SolarEagle (1); Stef (1); The Prof (1); Troy36 (1); vsar (2)

Previous in Forum: RF Emission   Next in Forum: Project feedback - LORA + GPS chip recommendations (not LoRAWAN)

Advertisement