FAQ
Q:How to confirm the receiving antenna’s model ?
A:You can choose the type and configuration of the product according to the following parameters: frequency, gain, working voltage and connector form.
Q:What’s the meaning of receiving antenna’s parameter?
A:Frequency:the frequency of receiving antenna decide the type of transfer signal,The four satellite navigation systems have their own specific working frequency.
Gain: when the input power is equal, the ratio of the power density of the actual antenna to the ideal radiation unit at the same point in the space is used to measure the ability of the antenna to receive and receive signals in a particular direction.
Working voltage: the voltage value required when the receiving antenna is working normally.
Connector form: receiving antenna connector has SMA, N, BNC, TNC and so on.
Q: how to confirm the model of the transmitting antenna?
A: you can choose the type and configuration of the product according to the following parameters: frequency, connector form and so on.
Q:What do the technical indicators for transmitting antennas mean?
A:Frequency：the frequency of the receiving antenna determines the type of the transmitted satellite signal, and the four satellite navigation systems have their own specific working frequency.
Connector:the connectors for the transmitting antenna are SMA, N, BNC and TNC.
Q: how to determine the model of the amplifier?
A: you can choose the type and configuration of the product according to the following parameters: frequency, noise figure, gain, working voltage and joint form.
Q: what is the meaning of the amplifier technical index?
A: frequency: the amplifier meets the frequency range of all other technical indicators.
Noise figure: the degree of signal-to-noise ratio deteriorated after the signal passes through the system.
Gain: it represents the amplification ability of amplifier under linear working state.
Working voltage: the voltage value required when the receiving antenna is working normally.
Connector form: amplifier connector has SMA and N type.
Q: how do you determine the type of the power divider?
A: you can select the type and configuration of the product according to the following parameters: working frequency, power, input and output port in Bobbi, insertion loss, output port isolation, connector form, etc.
Q: what does the technical indicator of the power divider mean?
A: frequency: power divider meets the frequency range of all other technical indicators.
Power: the maximum power that the power divider can withstand when working for a long time.
Input and output port in Bobbi: an important index of RF and microwave circuits, reflecting the matching of ports.
Insertion loss: the loss of the load power caused by the access of the power divider, which is expressed as the number of decibels received by the power divider before the insertion of the load and the ratio of the power received on the same load after the insertion of the power divider;
Isolation of output port: the decibel number of signal leakage to other ports and the ratio of power to original power. Ideally, there should be no output power between the output ports. However, due to the limitation of design and manufacturing accuracy, there are some power outputs between the isolation ports.
Connector form: power divider connector has SMA type, N type and so on.
Q: can we provide customized products?
A: we can provide customized services in the various product fields. We can send product managers and designers to communicate one to one with customers and provide customized solutions.
Q: how many satellite navigation systems are there? What are the differences?
A: there are only four kinds of satellite navigation systems in the world: the United States global positioning system (GPS), the Russian GLONASS system, the China Beidou system and the European Galileo system.
Q: how many satellites are there in the four satellite navigation systems? What is the accuracy?
A: GPS is composed of 24 satellites with a positioning precision of about 5m; GLONASS has 24 satellites with a positioning precision of about 1015m; the Beidou system consists of 35 satellites, 5 stationary orbit satellites and 30 non stationary orbit satellites with a positioning accuracy of about 10m; Galileo has 30 satellites with a positioning precision of less than 1m.
Q: what is the most prominent advantage of the four satellite navigation systems?
A: the victory of GPS is mature; the anti-interference ability of GLONASS is strong; the Beidou system has strong interaction and openness; the Galileo system is a three-star positioning, specially for civil. The new open positioning system with the highest accuracy in the future.
Q:What are the frequencies of GPS, GLONASS, Beidou and Galileo satellites?
A : GPS: L1 :1575.42 +/-10 MHz； L2:1227.60 +/-10 MHz
GLONASS： L1=1602+0.5625*k(MHz)； L2=1246+0.4375*k(MHz) L1/L2=9/7
北斗：B1：1559.052－1591.788MHz；B2：1166.220－1217.370MHz；B3：1250.618－1286.423MHz
Galileo ：1589.74 MHz(E1:1587-1591)；1561.1 MHz(E2:1559-1563)；1278.75 MHz(E6)； 1176.45MHz(E5a)；1207.14(E5b)
Q:How to confirm the receiving antenna’s model ?
A:You can choose the type and configuration of the product according to the following parameters: frequency, gain, working voltage and connector form.
Q:What’s the meaning of receiving antenna’s parameter?
A:Frequency:the frequency of receiving antenna decide the type of transfer signal,The four satellite navigation systems have their own specific working frequency.
Gain: when the input power is equal, the ratio of the power density of the actual antenna to the ideal radiation unit at the same point in the space is used to measure the ability of the antenna to receive and receive signals in a particular direction.
Working voltage: the voltage value required when the receiving antenna is working normally.
Connector form: receiving antenna connector has SMA, N, BNC, TNC and so on.
Q: how to confirm the model of the transmitting antenna?
A: you can choose the type and configuration of the product according to the following parameters: frequency, connector form and so on.
Q:What do the technical indicators for transmitting antennas mean?
A:Frequency：the frequency of the receiving antenna determines the type of the transmitted satellite signal, and the four satellite navigation systems have their own specific working frequency.
Connector:the connectors for the transmitting antenna are SMA, N, BNC and TNC.
Q: how to determine the model of the amplifier?
A: you can choose the type and configuration of the product according to the following parameters: frequency, noise figure, gain, working voltage and joint form.
Q: what is the meaning of the amplifier technical index?
A: frequency: the amplifier meets the frequency range of all other technical indicators.
Noise figure: the degree of signal-to-noise ratio deteriorated after the signal passes through the system.
Gain: it represents the amplification ability of amplifier under linear working state.
Working voltage: the voltage value required when the receiving antenna is working normally.
Connector form: amplifier connector has SMA and N type.
Q: how do you determine the type of the power divider?
A: you can select the type and configuration of the product according to the following parameters: working frequency, power, input and output port in Bobbi, insertion loss, output port isolation, connector form, etc.
Q: what does the technical indicator of the power divider mean?
A: frequency: power divider meets the frequency range of all other technical indicators.
Power: the maximum power that the power divider can withstand when working for a long time.
Input and output port in Bobbi: an important index of RF and microwave circuits, reflecting the matching of ports.
Insertion loss: the loss of the load power caused by the access of the power divider, which is expressed as the number of decibels received by the power divider before the insertion of the load and the ratio of the power received on the same load after the insertion of the power divider;
Isolation of output port: the decibel number of signal leakage to other ports and the ratio of power to original power. Ideally, there should be no output power between the output ports. However, due to the limitation of design and manufacturing accuracy, there are some power outputs between the isolation ports.
Connector form: power divider connector has SMA type, N type and so on.
Q: can we provide customized products?
A: we can provide customized services in the various product fields. We can send product managers and designers to communicate one to one with customers and provide customized solutions.
Q: how many satellite navigation systems are there? What are the differences?
A: there are only four kinds of satellite navigation systems in the world: the United States global positioning system (GPS), the Russian GLONASS system, the China Beidou system and the European Galileo system.
Q: how many satellites are there in the four satellite navigation systems? What is the accuracy?
A: GPS is composed of 24 satellites with a positioning precision of about 5m; GLONASS has 24 satellites with a positioning precision of about 1015m; the Beidou system consists of 35 satellites, 5 stationary orbit satellites and 30 non stationary orbit satellites with a positioning accuracy of about 10m; Galileo has 30 satellites with a positioning precision of less than 1m.
Q: what is the most prominent advantage of the four satellite navigation systems?
A: the victory of GPS is mature; the anti-interference ability of GLONASS is strong; the Beidou system has strong interaction and openness; the Galileo system is a three-star positioning, specially for civil. The new open positioning system with the highest accuracy in the future.
Q:What are the frequencies of GPS, GLONASS, Beidou and Galileo satellites?
A : GPS: L1 :1575.42 +/-10 MHz； L2:1227.60 +/-10 MHz
GLONASS： L1=1602+0.5625*k(MHz)； L2=1246+0.4375*k(MHz) L1/L2=9/7
北斗：B1：1559.052－1591.788MHz；B2：1166.220－1217.370MHz；B3：1250.618－1286.423MHz
Galileo ：1589.74 MHz(E1:1587-1591)；1561.1 MHz(E2:1559-1563)；1278.75 MHz(E6)； 1176.45MHz(E5a)；1207.14(E5b)
