IngressGate™ - Indoor Ingress suppression (patent p)
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Cost-effective Patent P. technology for ingress suppression.
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No need for expensive monitoring or useless detection.
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Simple integration outdoor or indoor.
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Plug and play device.
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Best performance in the market.
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Drop amplifier integration.
Safecom's new IngressGate™ is a revolutionary cost-effective ingress suppression technology that enables CATV operators to increase upstream bandwidth and add advanced services with no interference .
Unlike standard solutions for ingress detection and monitoring, Safecom's patent-pending technology eliminates 70-90% of the ingress noise by addressing the source of the problem where most ingress noise is created - at the customer premises.
How it works?
Safeom's patent-pending technology is based on the burst nature of the return path and the random presence of ingress noise. The technology functions as a upstream gateway that allows carrier signals from customer premises into the network only when the home devices are actively transmitting. This mode of operation eliminates most of the ingress noise without any adverse effect on the upstream and downstream signals. Safecom's Ingress gate ™ (patent p) technology supports DOCSIS 3.0 that requires switching speed faster than 1.6 μS and ensures the most reliable and cost effecting solution for upstream ingress noise.
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Ingress Gate drop amplifier.
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Common Drop amplifiers (active return)
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The average noise floor at customer houses -59dB (mV)
A: Typical drop amplifier NF is + 6 dB
B: typical Amp gain-upstream +10dB
C: ingress gate isolation is -31dB
Results – Noise decrease less -15 dB
Noise level *(calculated) = -74dB ( mV)
* Floor noise
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The average noise floor at customer houses -59dB (mV)
A: Typical drop amplifier NF is + 6 dB
B: typical Amp gain-upstream +10dB
Results – Noise increase almost +16 dB
Noise level (upstream) –43dB (mV)
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For improving system implementation and reducing cost integrated ingress protection drop amplifier enables the simplest way to resolve the ingress problems while at the same time saving the need for additional common drop amplifiers.
Safecom offer range of Ingress gate solutions with or /without RF gain at the upstream /downstream.
Upstream Ingress Protection with RF Active forward/return gain
Electric Performance- DOCSIS 3 READY
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Model
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IGDA 10/10TA
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IGDA15/10TA
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Ingress Gate Parameter
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Unit
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Min value
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Max value
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Min value
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Max value
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Gate upstream level
4
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dBmV
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20
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20
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Gate upstream time
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μs
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1.5
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1.5
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Gate insert loss
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dB
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1.5
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1.5
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Gate switch isolation
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dB
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35
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35
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Forward (downstream) path
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Frequency range
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MHz
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47/54/70/85
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1000
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47/54/70/85
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1000
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Gain
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dB
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10
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14
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Flatness
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dB
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1.0
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1.0
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Output level
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dBμV
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80
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85
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Noise figure
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dB
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4.0
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4.0
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Group delay
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Front 1st
chl
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ns
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25
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25
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2
nd
chl
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ns
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10
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10
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From 3th
chl
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ns
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5
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5
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CTB
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dBc
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-73
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-73
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CSO
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dBc
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-62
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-62
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Cross modulation
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dBc
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-75
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-75
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Reverse (upstream) path
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Frequency range
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MHz
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5
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30/47/55/65
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5
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30/47/55/65
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Gain
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dB
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10
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10
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Flatness
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dB
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1.0
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1.0
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Max output level
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dBmV
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60
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60
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Noise figure
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dB
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6.8
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6.8
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Group delay
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5MHz
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ns
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20
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20
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Within band
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ns
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25
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25
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Middle
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ns
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5
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5
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2
nd
Inter modulation
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Reverse
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dBc
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-70
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-70
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Forward
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dBmV
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-40
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-40
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3
rd
Inter modulation
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Reverse
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dBc
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-60
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-60
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Forward
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dBmV
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-35
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-35
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Cross modulation
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dBc
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-75
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-75
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General performance
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Resistance
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Ohm
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75
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Return loss
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dB
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18
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Hum modulation
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dBc
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-75
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RFI shielding
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dB
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100
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Surge withstand
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RF input
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IEEE C62.41 B3 6kV/300kA combo wave+A3 6kV/ ring wave
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Other ports
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IEEE C62.41 Category A36kV/ ring wave
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Power consumption
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mA
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320
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Waterproof
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㎏
/cm
2
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1
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F port
conductor
Gold-plated, beryllium
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360°pin structure
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push or pull force
≥ 8 Newton
。
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Measurement
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mm
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85×75×23
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Weight
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g
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350
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