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Signal Booster Related Frequently Asked Questions and Answers (FAQ's).

Read our cell phone signal booster buying guide for explanation of basic cell phone signal booster components.

1. How To Measure Signal Strength In Decibels On Your Cell Phone?

Our Know-How-To Guide For Both IOS Apple and Android Users provides this information in an easy to understand method. More...

2. How to Lower Booster Power by Manipulating Dipswitches?

Here's the layout of the dipswitch bank and how the dB gain attenuates. More...

3. Do Your Boosters Have Any Safeguards for the Prevention of Cell Tower Interference?

All of our signal boosters come equipped with triple safeguard against interference, as listed below. More...

4. I have Just Purchased a New Cell Phone Booster: How Do I Register It?

We have a section designed especially for assisting our customers in registering their newly purchased cell phone boosters. More...

5. Does Cable Length between Signal Boosters and Antennas Decrease Signal Strength?

Yes, here's an attenuation chart that shows how much signal strength is lost for various cable length sizes. More...

6. In What outside Temperature Ranges do Your Signal Boosters Work?

With their durable metal casing, they are designed to work in a wide range of outside temperatures as follows. More...

7. How Did the FCC Ruling Affect Cell Phone Signal Boosters?

The FCC ruling made it clear that signal boosters are a legal and important part of the wireless infrastructure of our nation. More...

8. How Does the FCC Statement Affect the Cell Phone Booster Industry?

This FCC ruling clears all legal barriers, and it is our opinion that this ruling will increase their widespread use. More...

9. Was SureCall Involved in the FCC Signal Booster Decision?

Yes, SureCall has been very involved in this issue and has been working closely with both the Agency and carriers for many years. More...

10. Will Dealers Be Held Liable If a Consumer Fails to Register a Booster?

No, they won’t. User instructions, marketing materials, and booster packaging alerts buyers that regstration is required. More...

11. As per a recent FCC Statement on Boosters, will Consumers Be Required to Remove Them?

We understand that FCC will not pursue enforcement unless an instance of unresolved interference is involved. More...

12. What Is DB Gain?

A simple explanation of dB gain is that a gain value represents the relative level of signal enhancement. More...

13. What is M2M?

M2M when referring to cell phone signal boosters is boosting reception for machine to machine applications. More...

14. Do Vehicle Cell Phone Signal Boosters Boosters Work? How?

Yes, they greatly improve cell phone coverage in your vehicle, whether it be a car, truck, van, or RV. More...

15. How Do Residential or Commercial Cell Phone Signal Boosters Work?

Explaining how boosters improve reception inside homes and businesses is easy, but actual technology behind it is fascinating. More...

16. How Can Wi-Fi & Cell Phone Signal Boosters Help Businesses?

Buildings are not conducive to good cell phone reception. Partitions between rooms block Wi-Fi signals too. More...

17. What Is Adjustable dB Gain?

Because full power is not always the best option, many of SureCall’s boosters come with adjustable dB gain at 1 dB increments. More...

18. Why Do Some Cell Phone Signal Boosters Have Automatic Shutdown?

Automatic shutdown occurs because boosters are designed to prevent noise or oscillation within them. More...

19. Why Our Boosters and Amplifiers Are Made of Metal?

There are two reasons for that. The first reason is that metal is tougher and more impervious to being damaged. More...

20. How Many Phone and Data Cards Can Be Simultaneously Supported?

There's no specific limit. The number of users will vary depending on the strength of outside signal. More...

21. Why Do I Suddenly Have Less Indoor cellular Coverage Than before?

Unfortunately, there's no straightforward answer to this question because it could occur for a number of reasons. More...

22. I Get Great Reception Near the Inside Antenna, but Not When I Walk Away. Why?

The better signal you have outside, the further away from the internal antenna you could be. More...

23. Help! I have Set up the Cell Phone Booster and Antenna but I Still Don't Get a Signal.

The first step is to make sure the power light on your booster is turned on. More...

24. How Much Separation Is Required Between Inside and Outside Antennas?

Hereby we list the recommended distances between interior and exterior antennas depending upon the strength of the booster. More...

25. Where's the Best Place for an Outside Antenna?

An ideal placement for an outside antenna is to locate an unobstructed spot on your rooftop, away from other antennas. More...

26. Any Tips and Tricks For Separation Between Inside and Outside Antennas?

Vertical separation is a lot more effective than horizontal separation due to more obstacles and raised height of exterior antenna. More...

27. Do Your Cell Phone Signal Boosters/ Amplifiers Require Maintenance?

While our boosters are extremely user-friendly, we ask (not required) that you check the setup and components every 2 to 4 weeks. More...

28. Should I Be Able to See the Cell Phone Tower in Order to Use This Booster?

There's a common misconception that in order to use a cell phone booster you need the cell phone tower to be in line of sight. More...

29. Can I Get Help with the Installation of My Cell Phone Signal Booster or Amplifier Kit?

Yes, despite the clear DIY instructions if you feel you need help with installation, please submit our installation quote request form. More...

30. What are Linear Amplifiers and do these Require Expertise for Installation?

Linear amplifiers are powerful industrial amplifier. These do require expertise in installing these types of systems inside large spaces. More...

31. What Do Signal Bars on a Cell Phone REALLY Mean?

It is important to understand that signal bars on a cell phone is not an accurate measurement of cell phone strength. More...

32. What are the Cellular Frequencies of Cell Phone Carriers in USA & Canada?

Here's a list of all cellular frequencies for each cell phone carrier in United States and Canada. More...

33. What is the difference between "Cellular Frequency" versus Wi-Fi, and Bluetooth Frequencies?

All cellular phone networks, worldwide, use part of the radio frequency spectrum designated as UHF (Ultra-High Frequency). More...

34. What Is The Difference Between "Signal Gain" Versus "Signal Loss"?

Gain is the ability of a device to increase the power of a signal. Loss, also called attenuation, is any reduction of signal strength. More...

35. What is a Cell Phone Signal Booster and How Does It Work?

A cell phone signal booster is a system that boosts mobile reception to improve operation and performance of cellular devices. More...

36. What is a Wi-Fi Signal Booster and How Does It Work?

A Wi-Fi signal booster extends WiFi network coverage space by boosting or amplifying existing signals. More...

37. What is a Consumer, Industrial, and Industrial Part 90 Signal Booster?

These are 3 different types of signal booster classifications as designated by FCC. Read details of each of them at links provided below:
Consumer, Industrial, Industrial Part 90.

38. How can I find out which cell carrier's signal is strongest in my home or business property?

Here's how to find out which cell phone carrier has the best indoor coverage within your home or business. More...

39. What is the difference between indoor "Dome" and "Panel" antennae?

Dome antennas are Omni-directional, whereas Panel antennas are Uni-Directional. More...

40. How to calculate cell phone antenna booster coverage area?

Determining your output signal level is the first step for calculating the cell phone signal booster coverage area. More...

41. Why and how to perform site survey prior to cell phone antenna booster installation?

A cell phone antenna booster site survey is essential especially for commercial signal booster systems to help determine equipment that will be required and locations of placement of that equipment. More...

42. How to design a cell phone signal booster system to cover all indoor areas?

Designing a cell phone booster system requires any software that can import the blueprint or floor plan and allows adding images of amplifiers and drawing of cables to connect everything. More...

43. How does cell phone signal work? How can a signal booster help?

Once you find out how cell phone signal works, it will automatically help you understand the concept of how installing a cell phone booster system helps. More...

44. What are the differences between donor omni & uni-directional Yagi or Log Periodic antennas?

The basic difference between the two is that omni antennas pull signals from all directions whereas yagi or LP antennas pull signals from one direction. However, there's a lot to know about these to make an informed decision about which would be more suitable. More...

45. Can we paint or camouflage internal or external signal booster antennas to match building or wall color?

Luckily, the answer to this question is yes - However, the paint must not contain any metallic flakes or metal of any kind. Click, "more" to watch a video explaining why. More...

46. What is a lightning surge protector and why must I seriously consider installing it?

Lightning strikes are becoming more frequent due to global warming. If you have a surge protector installed, the lightning is discharged before it causes damage to your expensive equipment. More...

47. Which types of cables are there? How to calculate cable length? Any cable installation tips?

There are mainly 3 types of cell phone signal booster cables are RG-6, RG-11, and Wilson 400 cables. The main differences between these is the cable loss they incur and the cable connector they use. More...

48. What is the difference between Initial RF site survey and complete RF site survey?

Initial survey instructions for cell phone signal booster installation consist of 3 simple steps and complete RF site survey consist of more steps that require more time consuming tasks. More...

49. Which cell phone signal booster kit boosts signal on Sprint's Band 41 (2500 MHz)?

Unfortunately, due to FCC regulation, no industry signal booster is able to cover the Sprint Spark Network at this time. More...

50. How much does a cell phone signal booster cost?

The cost of a cell phone booster varies greatly depending upon whether you need vehicle or indoor cell signal booster. If indoors, how large is the space to be covered in square footage? And how weak is the signal outside? More...

51. Do you offer a cell phone signal booster upgrade, buy-back, exchange, or recycle program?

Yes, if you have an old 2G or 3G cell phone signal booster that does not work for you anymore, we offer a cell phone signal amplifier upgrade & exchange program. Simply contact us and provide its details (make & model) to determine its value. We will then send you a shipping label to send it to us after you purchase a new 5 band 3G + 4G LTE signal booster at a highly discounted price to compensate you for its value. More...

52. I’m getting good reception close to the inside antenna, but when I walk away, I don't.

Generally, the amplifier's total coverage is based on initial outside signal. The better reception you get outside the further away from the internal antenna you could be. Most of the time you can divide the coverage with our SC-WS-2, which splits the coverage within two domes. Alternative placement of the outside antenna could dramatically change the signal too. Using your phone to test, you need to place the outside antenna where you get most signal bars of reception. But when outside reception is very faint from the get-go, you may need to look into an additional amplifier setup.

53. Even after setting up the signal booster and antenna, I don’t get a strong signal. What do I do?

First, make sure the power light is turned on in your booster. Second, check what kind of cell signal you’re getting outside. Third, make sure your outside and inside antennas have enough separation or aren’t too close together. If it still isn’t working after completing those steps, call us, or go to our online chat for tech support.

54. Where is the best place to put an outside signal booster antenna?

The best method is to find an unobstructed spot on your rooftop away from other antennas where you can make cell phone call. Rather than risk injury, the next best method is to find out which corner of the house receives the best signal and install the outside antenna in that corner.

55. What's the difference between 3G and 4G LTE, and what does it mean?

"3G" is simply a generic term indicating the “third generation” of standards for mobile networking. Mobile broadband users typically see internet speeds of approximately 600-1400kbps download (with bursts up to 2,000 kbps) and 500-800kbps upload where 3G coverage is available. "4G" is the fourth generation of cell phone mobile communications standards. It is a successor of the third generation (3G) standards. A 4G system provides mobile ultra-broadband Internet access, for example to laptops with USB, wireless modems to smartphones and to other mobile devices. Conceivable applications include mobile web access, IP telephony, gaming services, HD TV, video conferencing and 3D TV. Peak speed requirements for 4G service is set at 100 megabit per second (Mbit/s) for high mobility communication (such as from trains and cars) and 1 gigabit per second (Gbit/s) for low mobility communication (such as pedestrians and stationary users). As opposed to earlier generations, a 4G system does not support traditional circuit-switched telephony service, but all Internet protocol (IP) based communication such as IP telephony.

56. What is dBm?

DBm is an abbreviation for the power ratio in decibels (dB) of the measured power referenced to one milliwatt. It is used in radio, microwave and fiber optic networks as a convenient measure of absolute power because of its capability to express both very large and very small values in a short form. DBm is used to define signal strength in electronic equipment such as signal boosters, wires and cables atradio and audio frequencies.

57. What is signal booster linearity?

Linearity is the behavior of a circuit, particularly a signal booster, in which the output signal strength varies in direct proportion to the input signal strength. Many times a device's specifications will simply refer to linearity, with no other explanation as to which type of linearity is intended. In cases where a specification is expressed simply as linearity, it is assumed to imply independent linearity. Independent linearity is probably the most commonly-used linearity definition. Independent linearity is defined as the maximum deviation of actual performance relative to a straight line, located such that it minimizes the maximum deviation. In that case there are no constraints placed upon the positioning of the straight line and it may be wherever necessary to minimize the deviations between it and the device's actual performance characteristic.

58. Do cell boosters increase radiation to cell phone?

No, actually our cell phone boosters do exactly the opposite; it keeps the harmful radiation away from the user. The power is reduced from the cell phone’s antenna. The booster system's outside antenna gathers and releases the harmful radiation instead of the antenna in your phone.

59. What is signal booster VSWR?

In telecommunications, Standing Wave Ratio (SWR) is the ratio of the amplitude of a partial standing wave, at an antinode (maximum) to the amplitude at an adjacent node (minimum), in an electrical transmission line. The SWR is usually defined as a voltage ratio called the VSWR, (sometimes pronounced "viswar), for voltage standing wave ratio. For example, the VSWR value 1.2:1 denotes a maximum standing wave amplitude that is 1.2 times greater than the minimum standing wave value. It is also possible to define the SWR in terms of current, resulting in the ISWR, which has the same numerical value. The power standing wave ratio (PSWR) is defined as the square of the VSWR. SWR is used as an efficiency measure for transmission lines, electrical cables that conduct radio frequency radio signals, used for purposes such as connecting radio transmitters and receivers with their antennas.

60. What are M2M signal boosters?

SureCall IoT or M2M signal boosters strengthen and maintain mobile data connections to enhance data uploads & downloads while keeping information encrypted. More...