In the wireless intercom system, it plays a role, just […]
In the wireless intercom system, it plays a role, just like the blood vessels in the human body bring blood to all parts of the human body, and bring the wireless intercom system signals to the area that needs to be covered, so the quality of the RF coaxial cable is very important. After considering various aspects of cost and construction, the communication company chose the RF coaxial cables, which were all produced by large factories.
First of all, the radio frequency coaxial cable of the wireless intercom system must be flame retardant, because non-flame retardant RF coaxial cable is not only flame retardant but also supports combustion in the event of fire, so this is very important. The HCAAYZ 50 12 RF coaxial cable used by the communication company is all flame retardant.
Secondly, when wiring the radio frequency coaxial cable HCAAYZ-50-12 in the wireless intercom system, it must be smooth, not bent or folded, otherwise the signal attenuation will be great.
Finally, at 450MHz, the HCAAYZ 50 12 RF coaxial cable has an attenuation signal of 4.75dB at 100 meters.
Let's take a look at the parameters of HCAAYZ-50-12 together:
Maximum use frequency: 8.8 GHZ
Speed factor: 88%
Capacitance: 76 pF / m
Peak power rating: 58 KW
DC resistance of inner conductor: 1.62Ω / Km
DC resistance of outer conductor: 2.08Ω / Km
Insulation dielectric strength: 6000 DC.V
Maximum voltage standing wave ratio: ≤1.15
Characteristic impedance: 50 ± 1Ω
Third-order intermodulation: ≥155 dBc
Average power: VSWR 1.0
Ambient temperature: 40 ° C, inner conductor temperature 100 ° C