Tunnel cluster radio coverage system products

Tunnel cluster radio coverage system products
1. m public security fire light near-end Machine

Features:
? The optical fiber transmission technology can provide a transmission distance of 20 km.
? Avoid interference with the same frequency, low loss, omnidirectional coverage, and convenient site selection.
? The optical output port of the optical terminal laser is added with a precision optical filter to improve the stability of RF output noise. The use of RF shielding and power filtering technology can effectively prevent sending and receiving interference and increase isolation. RF gain adjustable.
? The use of modular structure, MIC micro-strip technology, mid patch technology, high Q cavity filter and saw acoustic surface filter, with high reliability, good swapping, easy maintenance and other advantages.
? The power amplifier uses an exclusive-Performance high-power amplifier, and features high linearity, low mutual harmonic, and extremely low in-band stray emission.
? The low-noise amplifier uses a dual-tube balanced amplifier noise reduction technology to greatly reduce the uplink noise and avoid interference to the base station. Long-term stability is extremely good, even if a branch is damaged, it can still work normally.
? The upper and lower line gain adjustment adopts the advanced digital control attenuation, the adjustment range is 31 db, and the adjustment accuracy is high.
? This feature provides local and remote monitoring functions. Remote Control of Power adjustment, on/off power amplifier, and other functions; monitoring of output power, operating temperature, chassis door opening/off status, port Standing Wave Ratio alarm, etc.
? The use of steel plate chassis, after Electroplating treatment and then Epoxy Powder Electrostatic Spraying, effective moisture-proof, anti-corrosion. The chassis is fully sealed, dustproof and waterproof, and can work around the clock inside and outside the house.
Working principle of M Public security fire light near-end machine:
The m public security fire protection cluster radio coverage system consists of a M Public security fire light near-end machine and a m public security fire light remote machine. The following path is used as an example. When the system is working, the m public security fire light nearby host receives downlink coupling signals from the base station, the RF signal is modulated into a light signal by the M Public security fire light nearby machine and sent to the m public security fire light remote machine by optical cable. The m public security fire light remote machine decodes the optical signal into a RF signal, after being amplified by a power amplifier, It is emitted by a resend antenna to reach the coverage signal blind zone. Likewise, the remote resend antenna receives upstream signals from users, which are amplified by the remote machine and modulated into optical signals. optical cables are transmitted to the local machine, and the Local Machine converts the upstream optical signals to RF signals, after being amplified by upstream push, it is sent to the base station.
2. m public security fire light remote machine

Features:
? The optical fiber transmission technology can provide a transmission distance of 20 km.
? Avoid interference with the same frequency, low loss, omnidirectional coverage, and convenient site selection.
? The optical output port of the optical terminal laser is added with a precision optical filter to improve the stability of RF output noise. The use of RF shielding and power filtering technology can effectively prevent sending and receiving interference and increase isolation. RF gain adjustable.
? The use of modular structure, MIC micro-strip technology, mid patch technology, high Q cavity filter and saw acoustic surface filter, with high reliability, good swapping, easy maintenance and other advantages.
? The power amplifier uses an exclusive-Performance high-power amplifier, and features high linearity, low mutual harmonic, and extremely low in-band stray emission.
? The low-noise amplifier uses a dual-tube balanced amplifier noise reduction technology to greatly reduce the uplink noise and avoid interference to the base station. Long-term stability is extremely good, even if a branch is damaged, it can still work normally.
? The upper and lower line gain adjustment adopts the advanced digital control attenuation, the adjustment range is 31 db, and the adjustment accuracy is high.
? This feature provides local and remote monitoring functions. Remote Control of Power adjustment, on/off power amplifier, and other functions; monitoring of output power, operating temperature, chassis door opening/off status, port Standing Wave Ratio alarm, etc.
? The whole machine is subject to strict high and low temperature aging before leaving the factory, small size, light weight; chassis wall-mounted design, strong and reliable, easy to install.
? The use of steel plate chassis, after Electroplating treatment and then Epoxy Powder Electrostatic Spraying, effective moisture-proof, anti-corrosion. The chassis is fully sealed, dustproof and waterproof, and can work around the clock inside and outside the house.
Working principle of M Public security fire light remote machine:
M public security fire light remote machine system consists of M Public security fire light nearby machine and M Public security fire light remote machine. The following path is used as an example. When the system is working, the m public security fire light nearby host receives downlink coupling signals from the base station, the RF signal is modulated into a light signal by the M Public security fire light nearby machine and sent to the m public security fire light remote machine by optical cable. The m public security fire light remote machine decodes the optical signal into a RF signal, after being amplified by a power amplifier, It is emitted by a resend antenna to reach the coverage signal blind zone. Likewise, the remote resend antenna receives upstream signals from users, which are amplified by the remote machine and modulated into optical signals, and transmitted to the m public security fire-fighting light nearby machine through optical cables, m public security fire light nearby machine converts uplink optical signals into RF signals, and sends them to the base station after uplink amplification.
3. M Optical Transceiver

Features:
? The optical fiber transmission technology can provide a transmission distance of 20 km.
? Avoid interference with the same frequency, low loss, omnidirectional coverage, and convenient site selection.
? The optical output port of the optical terminal laser is added with a precision optical filter to improve the stability of RF output noise. The use of RF shielding and power filtering technology can effectively prevent sending and receiving interference and increase isolation. RF gain adjustable.
? The use of modular structure, MIC micro-strip technology, mid patch technology, high Q cavity filter and saw acoustic surface filter, with high reliability, good swapping, easy maintenance and other advantages.
? The power amplifier uses a high-power amplifier with superior performance (formerly Motorola), featuring high linear, low mutual harmonic, and extremely low in-band stray emission.
? The low-noise amplifier uses a dual-tube balanced amplifier noise reduction technology to greatly reduce the uplink noise and avoid interference to the base station. Long-term stability is extremely good, even if a branch is damaged, it can still work normally.
? The upper and lower line gain adjustment adopts the advanced digital control attenuation, the adjustment range is 31 db, and the adjustment accuracy is high.
? This direct release station is produced in accordance with national standards and has local monitoring functions and remote control gain adjustment and on/off power amplifier through RJ45; monitor the gain, output power, operating temperature, AC/DC voltage operating status, chassis door opening/off status, and port standing ratio alarm.
? The whole machine is subject to strict high and low temperature aging before leaving the factory, small size, light weight; chassis wall-mounted design, strong and reliable, easy to install.
? The use of steel plate chassis, after Electroplating treatment and then Epoxy Powder Electrostatic Spraying, effective moisture-proof, anti-corrosion. The chassis is fully sealed, dustproof and waterproof, and can work around the clock inside and outside the house.
Working principle of M Optical Transceiver
The radio coverage system of the 150m scheduling cluster consists of a 150m scheduling optical transceiver and a 150m dispatching optical remote host. The following path is used as an example. When the system is working, the m optical transceiver receives downlink coupling signals from the base station, the RF signal is modulated into a light signal by a m optical transceiver and sent to a m optical transceiver. The 150m optical transceiver decrypts the optical signal into a RF signal, which is amplified by a power amplifier, it is initiated by the resend antenna to reach the coverage signal blind zone. Similarly, the remote re-transmission antenna of the M dispatching optical device receives upstream signals from users. The remote optical device of the M dispatching optical device scales up and modulated the signals to transmit the signals to the nearby optical machine of the M dispatching optical device through optical cables, the m optical transceiver converts the uplink optical signal into a RF signal and sends the signal to the base station after being amplified.
4. m remote optical scheduling Machine

Features:
? The optical fiber transmission technology can provide a transmission distance of 20 km.
? Avoid interference with the same frequency, low loss, omnidirectional coverage, and convenient site selection.
? The optical output port of the optical terminal laser is added with a precision optical filter to improve the stability of RF output noise. The use of RF shielding and power filtering technology can effectively prevent sending and receiving interference and increase isolation. RF gain adjustable.
? The use of modular structure, MIC micro-strip technology, mid patch technology, high Q cavity filter and saw acoustic surface filter, with high reliability, good swapping, easy maintenance and other advantages.
? The power amplifier uses a high-power amplifier with superior performance (formerly Motorola), featuring high linear, low mutual harmonic, and extremely low in-band stray emission.
? The low-noise amplifier uses a dual-tube balanced amplifier noise reduction technology to greatly reduce the uplink noise and avoid interference to the base station. Long-term stability is extremely good, even if a branch is damaged, it can still work normally.
? The upper and lower line gain adjustment adopts the advanced digital control attenuation, the adjustment range is 31 db, and the adjustment accuracy is high.
? This direct release station is produced in accordance with national standards and has local monitoring functions and remote control gain adjustment and on/off power amplifier through RJ45; monitor the gain, output power, operating temperature, AC/DC voltage operating status, chassis door opening/off status, and port standing ratio alarm.
? The whole machine is subject to strict high and low temperature aging before leaving the factory, small size, light weight; chassis wall-mounted design, strong and reliable, easy to install.
? The use of steel plate chassis, after Electroplating treatment and then Epoxy Powder Electrostatic Spraying, effective moisture-proof, anti-corrosion. The chassis is fully sealed, dustproof and waterproof, and can work around the clock inside and outside the house.
Working principle of 150m scheduling light:
The m scheduling radio coverage system is composed of a M Optical nearby scheduling machine and a m optical remote dispatching machine. The following path is used as an example. When the system is working, the m optical transceiver receives downlink coupling signals from the base station, the RF signal is modulated into a light signal by a m optical scheduling optical nearby machine and sent to a m optical dispatching remote machine through optical cable. The remote machine of the m optical scheduling device decrypts the optical signal into a RF signal, which is amplified by a power amplifier, it is initiated by the resend antenna to reach the coverage signal blind zone. Similarly, the remote re-transmission antenna of the M dispatching optical device receives upstream signals from users. The remote optical device of the M dispatching optical device scales up and modulated the signals to transmit the signals to the nearby optical machine of the M dispatching optical device through optical cables, the m optical transceiver converts the uplink optical signal into a RF signal and sends the signal to the base station after being amplified.

5. FMF remote optical direct playback Station

Product Introduction of FMFM far-light direct station (ST-3000)
FMFM pull far light direct station (ST-3000), is hengxingke Tong dedicated for tunnel FM broadcast coverage design of a professional wireless professional equipment, the device uses Class A high frequency amplifier, AGC automatic gain control, the output input adopts a high-selectivity cavity band-pass filter to ensure that the output out-of-band is clean. The FMF direct playback station is suitable for highway tunnel, subway tunnel, underground garage, and other anti-DDoS construction with severe FM broadcast signal coverage. The FMFM far-direction optical direct playback station adopts an integrated aluminum alloy structure design, broadband linear amplifier, AGC automatic gain control and other advanced technologies, and works with high-frequency leakage cables to achieve wireless frequency modulation coverage in the tunnel.
Technical Features of FMF Direct Optical Distribution Station (ST-3000)
? Optical fiber input, multi-mode RF signal, high-gain power amplification;
? Integrated, modular design, high strength cast aluminum material, waterproof structure design;
? The band-pass filter uses a high-selective spiral cavity filter to completely filter out other frequency signals and interference signals;
? The power amplifier adopts the patented broadband amplification technology. After mixing the multi-channel FM signal, it uses a high linear power. The amplifier completes the amplification of multiple frequency signals, and the circuit is concise, this ensures the high reliability, scalability, and maintainability of the system;
? The function is waterproof and moisture-proof, and the switching power supply can adapt to wide dynamic power input;
Technical Parameters of FMF Direct Optical Distribution Station:
? Productivity: 87 ~ 108 MHz (or a specified frequency)
? Output impedance: 50Ω
? Out-of-band suppression: better than-60db
? Optical fiber Input Interface: FC/APC
? Transmit Antenna; 50Ω leakage cable or dedicated Antenna
? Remote monitoring content: Forward Power, reverse power, operating current, and operating temperature
? Effective coverage distance in the tunnel: 1-3Km (depending on the diameter of the Cable leakage)
? RF output power: 10 W

Tunnel cluster radio coverage system products