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feature: * remote controller to switch on/off jammer * output power is unadjustable * continuous working for 24 hours, 365 days. * jamming range can be up to 50m, depending on the actual signal field strength * all of standard cellular phone frequency can be tuned, including cdma/gsm/3g/phs/dcs a...
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feature: * remote controller to switch on/off jammer * rotary switch for adjusting output power * continuous working for 24 hours, 365 days. * jamming range can be up to 50m, depending on the actual signal field strength * all of standard cellular phone frequency can be tuned, including cdma/gsm/3...
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features: directional antenna is an antenna which radiates greater power in one or more directions allowing for increased performance on transmit and receive and reduced interference from unwanted sources. directional antennas like yagi antennas provide increased performance over dipole antennas wh...
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qingdao wuxiao group can produce all kinds of steel towers (iron towers) and similar steel structures (iron structures) as per customers' requirements and drawings, such as transmission tower, telecommunication tower, angle steel tower, microwave tower, latticed tower, tubular tower, wind turbine to...
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introduction main features: matching with most pabx, pbx and pax systems. 1. main body with cold-roll steel sheets body, solid 2. handset free, loudspeaker, led incoming call indicator 3. resume lightning proof protection automatically standard to itu-t k21 4. waterproof...
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main features: 1． main body with whole stainless steel body, solid and temperature bearable 2． handset free, loudspeaker, 3． heavy duty vandal resistant buttons. 4． well treated metal keypad against rust and corrosion 5． resume lightning proof protection automatically standard to itu-t k2...
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introduction solar powered with built-in rechargeable battery standby 1 month 21 hours converstion as public telephone for indoor or outdoor, elevator phone, taxi or bus stands or station, highway call box. railway, metro, atm machines side, tunnel, port, dock, mines, generatio...
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introduction applications: as public telephone for indoor or outdoor, taxi or bus stands or station, highway call box railway, metro, atm machines side, tunnel, port, dock, mines, generation facilities... a good ideal telephone for use in wet or corrosive atmospheres main featu...
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introduction applications: as public telephone for indoor or outdoor, taxi or bus stands or station, highway call box railway, metro, atm machines side, tunnel, port, dock, mines, generation facilities... a good ideal telephone for use in wet or corrosive atmospheres main features ...
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om4e1pcm30 is an optical transmission equipment mainly applied in police system mstp (multiple service transmission protocol) .it can offer transparent transmission in one or 2 fibers, including 30 channels of telephone signal, 4 ×e1 channels, and single 100base_t and 10/100base_t interface. the ch...
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