On a SMA High gain antenna does the lower the dbi the better the reception.? Related Questions

On a SMA High gain antenna does the lower the dbi the better the reception.?
Asked By adan976g,Last Answer By networkmaster At 2009.12,1 Answers

No, just the opposite actually. Higher dBi means the RF energy is more focused. A standard antenna might be roughly 2.2dBi and the RF energy pattern is shaped like a giant 100-foot donut. If you use a high gain antenna, the energy gets more flattened out, now shaped more like a 200-foot pancake. So a high gain (like a 5dBi) has less signal going up/down but a stronger signal that goes farther out to the sides. This might actually make some setups WORSE, such as an access point in a basement and a laptop up in a 2nd floor bedroom for example.

Higher gain is bidirectional, that is, the transmitted energy is stronger (more focused) and its receive sensitivity is also stronger. Every increase by 3dBi is a doubling of power. Every increase of 10dBi is 10 times the power. That's the rule of 3's and 10's, it's logarithmic. The rule of thumb is that every increase by 6dBi will about double your distance outdoors, and 9dBi will about double your range indoors.

Note, I made the point above (more focused) to stress that a high gain antenna is an example of PASSIVE gain. This is not active gain, nothing is being amplified and the access point puts out the same amount of output power. The passive gain is accomplished by the antenna focusing down the RF energy pattern. So picture it like the same amount of signal, but shaped a different way. A very simple mental picture is to think of a large round balloon that gets squeezed on the top and bottom. Same amount of air (signal) in the balloon, but now it reaches out further to the sides and less going up/down.

Can you get HDTV reception from an antenna?
Asked By Guy,Last Answer By Keith P At 2009.12,1 Answers

How difficult is the install?

Without antenna (antenna built-in) is more mobile phone radiation it?
Asked By joy Green,Last Answer By Adah George At 2011.06,1 Answers

Will the transmitter antenna is divided AM and FM antenna
Asked By Chaplin White,Last Answer By Joanna wood At 2011.06,1 Answers

Will the transmitter antenna is divided AM and FM antenna

Will stagflation return in the next year or will we have high inflation and a lower unemployment rate?
Asked By george w,Last Answer By SDD At 2011.04,1 Answers

Does anybody know any nice places in the Lower Mainland that are good for high school grad pictures?
Asked By ???,Last Answer By Ed P At 2011.03,1 Answers

I'm looking for something nice in the nature.

Cost of putting in new or lower mileage engine on high mileage car?
Asked By Brian B,Last Answer By dodge man At 2011.03,1 Answers

Lets say I buy a 1999 VW Jetta turbo diesel with 195000 miles on it. I take my chances with it because the price is low....But later on, if the engine totally gives out, is it hard to find a new engine to put into it? Also, what would be the typical costs of labor to get it done since I'm not good with cars?

Production is monovalent lower and lower, wages rises amount to, it is difficult to hire, small treatment busi
Asked By Constantine Dodge,Last Answer By Tony Blake At 2011.05,1 Answers

It is not easy to become a boss, it is more difficult to become small boss. The end of financial crisis, those who be faced with is a series of problem, seek work difficult, wages soars, the unit price of the mould is lower and lower however, how can this make us small machine business to pass?

Getting lower and lower trading costs
Asked By William Smith,Last Answer By Reb Brown At 2011.05,1 Answers

I fallacies; next week, crude oil will fall below 50 U.S. dollars, fell to 12,000 yuan for polyethylene will be there. Trading costs, plastic plant purchases greater than previously thought {personal} [em07] [em12]

The roof is too high, how fitting it should be? Should hanging shelf, the shelf hanging lower. But hanging she
Asked By jessie lake,Last Answer By William Smith At 2011.05,1 Answers

How to make DTV Antenna?
Asked By Chetco,Last Answer By A W At 2011.03,1 Answers

Have you made one that actually works well?
Please share any plans that work.

Can we still use our tv antenna for digital hd tv?
Asked By [email protected],Last Answer By Stephen P At 2011.03,1 Answers

(This answer assumes that you are located in North America)

Probably. Digital and analog TV broadcasts use the same TV antennas. If you get good analog reception now, you should be able to use your old antenna.

Digital TV signals can be fussy about signal quality, so some people will need better antennas.

Despite marketing hype to the contrary, there are no special "digital antennas" or "HDTV antennas".

Can we still use our tv antenna for digital hd tv?
Asked By [email protected],Last Answer By Stephen P At 2009.12,1 Answers

(This answer assumes that you are located in North America)

Probably. Digital and analog TV broadcasts use the same TV antennas. If you get good analog reception now, you should be able to use your old antenna.

Digital TV signals can be fussy about signal quality, so some people will need better antennas.

Despite marketing hype to the contrary, there are no special "digital antennas" or "HDTV antennas".

Your taxes is due today. Do you want higher or lower taxes in the future? McCain wants lower taxes, don't you?
Asked By Conservative for Life,Last Answer By nova_queen_28 At 2009.12,1 Answers

I am aggravated and displeased when much of our hard-earned money goes to the federal government - if one of the Democrats is elected in November, you can be certain your tax rate will increase across the board.
When electing our next president in November, we will make a clear statement about the direction we want to take our economy and our tax system. This election will present us Americans with a clear choice between each candidate's position on this. I personally want small government, fiscal discipline and low taxes. I believe that tax cuts work best when accompanied by lower spending. John McCain promises to you that if elected president, he will make the present tax cuts permanent, lower corporate rates from 35% to 25% and end the Alternative Minimum Tax, which will affect millions of middle class families.

Antenna Splitter for My Car's Stereos?
Asked By some guy...,Last Answer By ParrotsCustomCarAudio At 2009.12,1 Answers

Hey everyone, I need to find an antenna, 3 way splitter for my car so the antenna plugs into three stereos. I have the original AM radio, 8track with a radio and a new cd/am/fm/ipod everything stereo.

I was just wondering where they were sold and who has them cheapest.

Thanks a lot!

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