Zelfors

FAQ

You can check it out through the websites like www.cellmapper.net or www.antennasearch.com, or you can ask our help to find out.

A cell phone booster works by pulling in weak signal, boosting it, and then rebroadcasting it inside your area in need.

Most signal boosters includes three parts:
The Outside Antenna to capture weak cell signal.
The Amplifier to boost the weak signal.
The Inside Antenna to rebroadcast the enhanced signal inside your home or car.

All FCC certified cell phone signal boosters we carry are perfectly legal to use in Indonesia. For Indonesia, all (Dijen SDPPI Kominfo) cell phone boosters are perfectly legal to use in Indonesia. If not certified, a cell phone signal booster may not work as required and may damage the Carriers networks when they don’t stop if oscillation occurs. This is the reason why some uncertified signal boosters in the market are illegal.

Unfortunately, signal boosters do not improve wifi signals, only cellular signals such as 2G 3G & 4G LTE for most major Indonesia carriers.

No, there is never a monthly subscription fee. Each Zelfors cell signal booster is a one-time purchase.

Every cell phone signal booster installation has its own unique set of circumstances and therefore time for installing a signal amplifier system varies greatly. However, on average, it takes between 1 to 2 week.

Yes, as our booster has Automatic Gain Control (AGC). As the frequencies spike or change their amplitude, the AGC automatically adjusts so that the input signal is working properly. Because of this, the device does not see an overload on the closed-loop circuit or on input signal regardless of the fluctuations in the frequencies by the cell tower.

Our products works for both data and voice.

If a booster provides a maximum of 60 dB gain, then the boosted signal coming out of the unit is 60 dB stronger than the unboosted signal that went into the unit.  Gain represent the relative level of signal boost you are providing.  A booster with a higher gain value will in turn provide a higher boosted signal and will also enable a cell phone signal booster to cover a larger area than most lower gain units.  Our Signal Supervisor app helps you easily install your booster so you can make sure you are getting the most gain out of your install.

Yes, but it may not give you good coverage. Please contact technical support for more information. [email protected]

It depends on the outside signal strength.

If outside signal is weak, it’s better to use the cable included in the kit and not to use extra cables. If the signal strength is relatively strong, you can run about 10-25 feet coax cable to the exterior antenna.

HOW CAN WE
HELP YOU?

Contact us at the Zelfors office nearest to you or submit a business inquiry online.