1. RF Amplifier Cell Phone Signal Repeater Dual Bands Highly Selective Channel Selector
    RF Amplifier Cell Phone Signal Repeater Dual Bands Highly Selective Channel Selector
    RF Amplifier Cell Phone Signal Repeater Dual Bands Highly Selective Channel Selector
    Product Name: RF Amplifier / Cell Phone Signal Repeater Output Power: 30-43dBm Gain: ≥ 90dB ALC/AGC: Supported Dimensions: 690mm* 420mm*260mm Weight: ≤45kg Dual-Band GSM900 / WCDMA2100 RF Amplifier , Cell Phone Signal Repeater   Model: VR-4390-GW   Product Instructions:           The GSM&WCDMA Dual-Band RF Repeater is designed to provide a more cost-effective solution than adding a new Base Transceiver Station (BTS) to improve signal coverage and communication quality in GSM900&WCDMA2100 system. And its easy installation and maintenance can help carrier get fast return.         The repeater is working as a relay between the BTS and mobiles. It receives the low-power signal from BTS via the Donor Antenna, linearly amplifies the signal and then retransmits it via the Coverage Antenna to the weak/blind coverage area. And the mobile signal is also amplified and retransmitted to the BTS via the opposite direction.   Product Features:   Band-Selective RF Repeater: to amplify all signals in the whole band (bandwidth is customized); Aluminum-alloy casing with IP65 protection has high resistance to dust, water and corroding; Highly selective channel selector can process 12 channels simultaneously; No interference to BTS by adopting linear amplifier with high gain and low noise; Adopting filter with highly selectivity and low insertion loss eliminates interference between uplink and downlink; RS-232 port provides a link to a notebook for local supervision or to the built-in wireless modem to communicate with the NMS (Network Management System) that can remotely supervise repeater's working status and download operational parameters to the repeater. Applications:   To expand signal coverage or fill signal blind area where GSM and WCDMA signal is weak or unavailable. Outdoor: Airports, tourism regions, golf courses, tunnels, factories, mining districts, villages, Indoor: Hotels, exhibition centers, basements, shopping malls, offices, parking lots, etc. Technical Specifications:   Items Specifications Frequency Uplink Downlink 890~915&1920~1980MHz (Customized) 935~960&2110~2170MHz (Customized) Output power 30-43dBm Gain ≥ 90dB ALC/AGC Supported Gain control range 30 dB/1 dB step Ripple in band ≤ 3.0dB Noise figure ≤ 5.0dB VSWR ≤ 1.5:1 Transmission delay ≤ 5μS Out band rejection F(edge)±400KHz≥20dBc F(edge)±600KHz≥30dBc F(edge)±1MHz≥40dBc F(edge)±5MHz≥50dBc Spurious emission ≤-36dBm/9KHz-1GHz ≤ -30dBm/1GHz-12.75GHz Intermodulation ≤ -37dBc Max. non-destructive input powe -10dBm Impedance 50 W Operating temperature range -25 ºC to +55 ºC Relative humidity 0 ~ 95% Applications IP65 Monitoring and control RS232 (local) GSM wireless modem (remote) Dimensions 690mm* 420mm*260mm; Weight ≤45kg Power supply AC220V ±20%, 50Hz ±10% Power consumption rating ≤300W RF Connectors type N female Mounting Wall or pole

    best way to boost mobile phone signal

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    item: Best way to boost mobile phone signal , mobile phone signal detector 4.8 47 votes
    2019/12/31