QK-R042 Marine Mobile Phone Signal Booster

$443.61 ($369.68 excl. VAT)

The R042 mobile signal booster amplifies the cellular signal from the nearest carrier’s station and retransmits the amplified signal to any type of cellular device nearby. By connecting it to the AS13 antenna , it can greatly improve the 2G/3G/4G reception of onboard mobile devices for up to 15 miles away from the shore.

  • Compatible with most of 2G/3G/4G networks in the world
  • Improves mobile devices reception range
  • Maximizes wireless internet speed
  • Enhances mobile phones communication quality
  • Works with all cellular devices: mobile phones, tablet, data cards
  • Features Automatic Gain Control(AGC) to optimize the gain level

In stock



A mobile phone signal booster is a perfect solution to improve cellular signal reception inside a building, on a boat or in a remote area.

The R042 marine mobile signal booster was designed to provide internet-on-board solution with the latest wireless technology. It works with two antennas: an indoor antenna and an outdoor antenna. The indoor antenna communicates with cellular devices, e.g., mobile phones or tablets. The outdoor antenna communicates with the base station.  It receives signals from the base station and sends them through the cable to the R042, where it gets amplified and re-transmitted by the indoor antenna to the cellular devices. When the indoor antenna picks up signals from the nearby cellular devices, the R042 amplifies these signals and transmits them through the cable to the outdoor antenna and to the base station.

The R042 boosts the 3G and 4G internet signals, and 2G phone calls. This voice + 4G + 3G data signal booster is an excellent solution for premises and areas where mobile signal reception is unstable or, for example, internet speed is insufficient due to low signal level. The R042 is a full band mobile signal booster device to amplify 2G, 3G, and 4G cellular signals and it is compatible with most cellular carrier networks in the world. With the latest wireless technology, the R042 is the most effective and reliable booster that customers can use to improve the mobile signal coverage on their boats/yachts. With a proper outdoor high gain antenna, like the QK-AS13(not included), boat owners can have a reliable cellular signal reception up to 15 miles away from the shore.

The R042 features a built-in LCD screen, which displays the signal strengths of the available LTE 800, GSM 900, DSC 1800, WCDMA 2100 and LTE 2600 networks. The R042 doesn’t require a complicated setup, it can be used out of the box after installation.

Technical Specifications

4G signal booster on boat

  • Gain: Uplink: 55 ±3dB, Downlink:70 ±3dB
  • Output Power: Uplink: 15 ±2dBm, Downlink:20 ±2dBm
  • Frequency bands: 20(800Mhz),
  • Automatic Gain Control(AGC): Yes
  • Connector Type: N-Female
  • Environment Conditions: IP40
  • Dimensions(D*W*H): 245*165*32mm


Although the R042 was designed to be used on small and medium sized vessels, it can be used to amplify cellular signals inside buildings, cars, caravans or in remote places.


Available to add to your order:


What’s included with the R042?

  • R042 mobile phone signal booster
  • 20 meters coaxial cable
  • 10 meters coaxial cable
  • Indoor Omni-directional 2G/3G/4G ceiling antenna
  • 12V to 5V converter


Help and Support

For any technical questions regarding this product, you can visit the forum at https://www.quark-elec.com/forum/ and ask us your question.

Alternatively, contact us directly, with details of your set up and we will be happy to help.


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Frequency Ranges (MHz)
Frequency rangeUplinkDownlink
Band 12699 ~ 716729~746
Band 13777 ~787746 ~756
Band 28703 ~ 748758 ~ 803
Band 20832 ~862791-821
CDMA824 ~ 849869 ~ 894
GSM890 ~ 915935 ~ 960
DCS1710 ~ 17851805 ~ 1880
WCDMA1920 ~ 19802110 ~ 2170
Band 72500 ~ 25702620 ~ 2690
PCS1850 ~ 19101930 ~ 1990
AWS1710 ~ 17552110 ~ 2155
LTE-26002500 ~ 25702620 ~ 2690
Product Parameters
GainUplink: 55 ± 3dBDownlink: 70 ± 3dB
Output PowerUplink: 15 ± 2dBmDownlink: 20 ± 2dBm
Net Weight<1.25kg
Automatic Gain ControlYes
Operating Temperature-25°C - 55°C
RF ConnectorN-Female
Power SupplyDC: 5V 3A
Impedance50 ohm
CoolingHeatsink Convection Cooling
Power Consumption<15W
MTBF>50000 hours
IP ratingIP40
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