JDCR-DB Series (+17dBm)

Dual Band Consumer Repeater

Product Overview

The JDCR-DB Series Cellular Repeater is a medium-powered, gain adjustable dual band repeater that is perfect for use in a DAS application needing to provide enhanced coverage for Voice + 3G or 4G high speed data to an office building, department store, warehouse, underground parking lot, or small multi-story hotel. Our repeaters are built with carrier level optimization in mind and thus use very high quality internal components to achieve this. These include low noise amplifiers with high linearity, properly specified  and set output power limits and well designed alarm/protection circuitry.

A main feature standard on all our repeaters are individually assigned Uplink and Downlink attenuation adjustment DIP switches. This is particularly advantageous when optimizing your repeater for LTE to ensure you get the best throughput speeds.  

A certified test report is included with each repeater that leaves our factory, so you are assured of strict quality controls.

  • Unlimited Call Capacity
  • Industry Leading Dual Band Repeater
  • 65dB Gain / 17dBm Output Power
  • FCC ID: SQX-JD60-DB-819
  • 18 Months Warranty
  • 30 Day Money Back Guarantee
  • MUTE - Auto Shut Down if oscillation is detected
  • MGC: Manual Gain Control (Uplink & Downlink)
  • Automatic Limit Control Feature
  • Transparent to Transmitting Tower in Area
  • Coverage Area - (12,000 - 18,000 sq ft)
  • Supports 90-240 Volts
  • Alarm LED's for Error Detection
  • Supports Any Cellular Device (Voice & Data)
  • Fully expandable to cover much larger areas
  • Automatic Gain Control Feature
  • Carrier Grade Performance & Quality
  • Phone Tech Support


Dual Band - 800 MHz / 1900 MHz
Dual Band - 900 MHz / 1800 MHz
Dual Band - 900 MHz / 2100 MHz
Dual Band - 700 Mhz (A+B) / 700 MHz (C)

To maintain safe and specific output signal levels, this advanced repeater has built-in AGC (Automatic Gain Control) and ALC (Automatic Limit Control) circuits which can automatically control the gain of the repeater within a 15dB range depending on the RF environmental conditions. In addition, it also has built-in attenuation dip switches that allow you to manually attenuate (fine tune) the repeater's Uplink and Downlink channels in 1db increments up to 31dB, using color changing LED's as a status indicator. These Alarm LED's are used as a guide to prevent your installation from re-producing errors due to excessive input signal strength if a pre-amp is used, or from signal oscillation due to the indoor antenna and outdoor antenna being too close to each other, which can have adverse effects on a base station and greatly impede system performance. 

A Network Safe / MUTE™ feature comes standard with this repeater to protect the cellular network. In short, the repeater will stop transmitting if any errors or signal oscillation is detected within 2-4 sec of detection. It will cycle for 30 sec then attempt to transmit again. If no adjustment in gain has been made to correct the error within the 30 sec MUTE cycle, the system will again shut down after 5 sec. It will run this sequence for a total of 3 times and then shut down completely.  Power cycling  the unit will reset this sequence.

This repeater is designed to be transparent to the network and will therefore support the same number of calls the serving sector of the BTS the donor antenna is aimed at. 

Frequency Chart

Frequency Range Uplink Downlink
JDCR-819-17 824~849 MHz 869~894 MHz
1850~1910 MHz 1930~1990 MHz
JDCR-918-17 890~915 MHz 935~960 MHz
1710~1785 MHz 1805~1880 MHz
JDCR-921-17 890~915 MHz 935~960 MHz
1920~1980 MHz 2110~2170 MHz
JDCR-700DB-17 698~716 MHz 728~746 MHz
776~787 MHz 746~757 MHz
 Filter Bandwidth GSM & CDMA 25MHz | PCS 60MHz AWS 45MHz | LTE 11MHz | 18MHz
 Max total output power  ≥12dBm ≥17dBm
 Max. Gain ≥65dB ≥65dB
 Gain Flatness  CDMA & GSM: ≤5dB, PCS & DCS: ≤8dB AWS ≤6dB, LTE ≤3dB
 AGC Range ≧15dB - Auto shut off after 15dB (MUTE)
 Maximum Input Power   0dBm
 Gain Control Range(MGC) ≥31dB in step of 1dB by Dip Switch
 V.S.W.R ≤2
Intermodulation 9KHz~1GHz≤-36dBm 9KHz~1GHz≤-20dBm
1GHz~12.75GHz≤-30dBm 1GHz~12.75GHz≤-20dBm
Spurious Emission 9KHz~1GHz≤-36dBm
Spurious Emission Mask Complies with 3GPP TS 25.106
Modulation Accuracy Complies with 3GPP TS 25.106
Peak Code Domain Error Complies with 3GPP TS 25.106
Frequency Stability ≤0.01ppm
 ACPR ≥30dB @±5MHz&±10MHz
Noise Figure (@ max gain)   ≤6dB
Group Delay ≤4.5 micro Sec
 Impedance   50Ω

Mechanical Chart

Power Supply Input 90- 264 VAC,50 Hz, transformer: 12V/5A
Cooling Heat Sink Convection Cooling
Power Consumption < 35W
Operating Temperature -10°C~+50°C (14F ~ 122F)
 RF Connector N Female
Weather Proof IP40
 Dimension 254 x 209.5 x 50.8mm (10" x 8.25" x 2")
Weight ≤3.2Kg (7.1Lbs)
LED Alarm Standard
Power LED Power Indicator
ALC LED Amber @ ALC 1~5dB, Red @ ALC 15-20dB
LED off after 5 seconds red color


30 Day Money Back

36 Month Warranty

This is NOT a CONSUMER device
It is designed for installation by FCC LICENSEES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to operate this device. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation.

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