Home > Home & Office Cell Boosters > PowerMax™ 4KMR-30M 50dB Gain Wireless Repeater System


Complete System: 4KMR-30M


Get more bars with Digital Antenna’s PowerMax™ 4KMR-30M wireless cell booster. This 50dB gain wireless cellular repeater system boosts the signal strength of your cell phones or wireless air cards to 3 watts, improves transmit and receive signals and can be used in a variety of locations. This translates into fewer dropped calls, clearer connections and stronger signals inside your home, office, cabin boat or RV. In addition, Digital Antenna’s cell boosters extend the life of your cell phone’s battery. Not for use in open console boats.

DUAL BAND: Operates on 850 or 1900 MHz frequency bands (except Nextel or iDEN).

Industry Canada Authorization 4260A-DA4000SBR, Part Number DA4000MR.

Application: One to two rooms in home, office, RV or boat with cabin (not for use in open console boats)
Range/Performance: Enhances multiple cell phones up to 25’ from inside antenna *
Advantage: Wirelessly amplifies up to 20 cell phones in one to two rooms
Requirement: 12’ separation plus a structure between inside and outside antennas

* Enhanced distance from inside antenna varies based upon outside cell signal strength. A weaker outside signal results in a smaller distance from inside antenna. For a larger enhanced inside coverage area, use ultra low loss cable and/or add a directional outside antenna (for fixed locations only). To use a cell booster, a usable cell signal must be present at the location of the outside antenna.

Installation Examples:

Home Installation Boat Installation RV Installation

HOME: Enhanced signal penetrates up to one interior wall with 50dB gain system.

BOAT: Internal antenna must be used inside. Enhances signals inside the cabin only.

RV: Directional inside antenna must face forward, away from external antenna.

See the data sheet (PDF) for larger images.

4KMR-30M System Includes:

  • 3 watt dual band 40dB gain cellular repeater (DA4000MR) *
  • 18” external 9dB gain omni-directional antenna ( 288-PW )
  • Internal 9 dB gain directional antenna ( 426-PW )
  • 30’ of DA240 cable for external antenna ( 240-30NM )
  • 15' of DA240 cable for internal antenna ( 240-15NM )
  • 1"–14 threaded mount ( DM194 )
  • 1"–14 threaded mounting ferrule ( F114 )
  • 12 VDC power converter ( DP515 )
  • 110 VAC power supply ( DP255 )

* Not sold individually; only available as part of a system.

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