CN218587338U - Distributed antenna system for broadcast television - Google Patents
Distributed antenna system for broadcast television Download PDFInfo
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- CN218587338U CN218587338U CN202222674813.1U CN202222674813U CN218587338U CN 218587338 U CN218587338 U CN 218587338U CN 202222674813 U CN202222674813 U CN 202222674813U CN 218587338 U CN218587338 U CN 218587338U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application provides a distributed antenna system for radio and television, compares in prior art and sends wireless radio frequency signal to user's family through the basic station, has wireless radio frequency signal to let the easy problem of decay of signal, and this application is through setting up a little basic station in independent building at least for the wireless radio frequency signal of little basic station transmission is closer to television terminal, can reduce wireless radio frequency signal's loss, transmits the signal to television terminal better. Meanwhile, radio-frequency signals received by the micro base station are transmitted to the home of a user through the coaxial cable, the first distributor, the splitter and the antenna, the antenna is arranged at a position closer to the television terminal, blocking of a large number of buildings is broken through, loss of wireless signals is further reduced, and finally dead angles do not exist in indoor coverage of the wireless signals due to the fact that loss of the wireless signals is greatly reduced.
Description
Technical Field
The utility model relates to a distributed antenna system for radio and television belongs to distributed antenna technical field.
Background
With the continuous development of the smart television, the smart television is also more and more popular. Meanwhile, the wireless intelligent television is more and more popular with people due to no need of wiring. The wireless smart television needs to receive wireless signals such as a DTMB signal and a LoRa signal to play a television program or communicate with a server. The wireless intelligent television is arranged indoors, wireless signals are transmitted remotely, and blocking of buildings causes attenuation of the wireless signals, so that dead angles exist in indoor coverage of the wireless signals.
SUMMERY OF THE UTILITY MODEL
In order to solve above-mentioned prior art radio signal through remote transmission, including blockking of building, lead to the radio signal decay, and then lead to the indoor coverage of radio signal to have the problem at dead angle, the utility model provides a distributed antenna system for radio and television.
According to the utility model discloses an embodiment, the scheme that provides is: a distributed antenna system for broadcast television, comprising: the micro base station is connected with the first distributor through the coaxial cable, the micro base station is connected with a plurality of splitter circuits through the first distributor, the splitter circuits are connected in series and provided with a plurality of splitters arranged at intervals, and each splitter is connected with the antenna through one coaxial cable;
and the micro base station generates a radio frequency sub-signal through a radio frequency signal received by the communication module through the first distributor, and the radio frequency sub-signal is sent to the television terminal through an antenna of the splitter.
Further, as a more preferred embodiment of the present invention, the micro base station is provided in each floor of the independent building, the branching device is uniformly provided in the floor at a predetermined interval, and the antenna is provided in the floor or indoors.
Further, as a more preferred embodiment of the present invention, the distributed antenna system for broadcast television further includes: the amplifiers are respectively connected with the branching device through coaxial cables, amplify the radio frequency sub-signals received by the branching device and transmit the amplified radio frequency sub-signals to the antenna through the coaxial cables.
Further, as a more preferred embodiment of the present invention, the forward amplification frequency of the amplifier is 87 to 862MHz, and the reverse pass frequency of the amplifier is 470MHz.
Further, as a more preferred embodiment of the present invention, the distributed antenna system for broadcast television further includes: and the second distributors are respectively connected with the amplifiers through the coaxial cables, and are connected with the antenna through the coaxial cables.
Further, as a more preferred embodiment of the present invention, the first distributor includes two distributors or three distributors, the input end of the first distributor is connected to the micro base station through a coaxial cable, and when the first distributor is a two distributor, the output end of the first distributor is connected to two splitters through a coaxial cable; when the first distributor is a three-distributor, the output end of the first distributor is connected with three branches through coaxial cables.
Further, as a more preferred embodiment of the present invention, the second distributor includes two distributors or three distributors, an input end of the second distributor is connected to the micro base station through a coaxial cable, and when the second distributor is a two distributor, an output end of the second distributor is connected to two antennas through a coaxial cable; and when the second distributor is a three-distributor, the output end of the second distributor is connected with the three antennas through coaxial cables.
Further, as a more preferred embodiment of the present invention, the communication module includes a DTMB communication module and a LoRa communication module, the radio frequency signal includes a DTMB signal and a LoRa signal, the micro base station receives the DTMB signal through the DTMB communication module, and generates a DTMB sub-signal through the first distributor, and the DTMB sub-signal is sent to the tv terminal through the antenna; the micro base station receives an LoRa signal through the LoRa communication module, and generates an LoRa sub-signal through a first distributor, and the LoRa sub-signal is transmitted to the television terminal through the antenna.
Further, as a more preferred embodiment of the present invention, the frequency range of the DTMB signal is 87-862MHz.
Further, as a more preferred embodiment of the present invention, the frequency of the LoRa signal is 470MHz.
Above-mentioned a distributed antenna system for radio and television compares in prior art and sends wireless radio frequency signal to user's house through the base station, has wireless radio frequency signal and lets the easy problem of decay of signal, and this application is through setting up a little base station in independent building at least for wireless radio frequency signal that little base station transmitted is closer to television terminal, can reduce wireless radio frequency signal's loss, transmits the signal to television terminal better. Meanwhile, radio-frequency signals received by the micro base station are transmitted to the home of a user through the coaxial cable, the first distributor, the splitter and the antenna, the antenna is arranged at a position closer to the television terminal, blocking of a large number of buildings is broken through, loss of wireless signals is further reduced, and finally dead angles do not exist in indoor coverage of the wireless signals due to the fact that loss of the wireless signals is greatly reduced.
Drawings
Fig. 1 is a system diagram of a distributed antenna system for broadcast television according to the present invention;
fig. 2 is a system diagram of the distributed antenna system for broadcast television according to the present invention;
fig. 3 is a system diagram of the distributed antenna system for broadcast television according to the present invention;
fig. 4 is a system diagram of the distributed antenna system for broadcast television according to the present invention.
Reference numerals:
1. a micro base station; 11. a DTMB communication module; 12. a LoRa communication module; 2. a first distributor; 3. a splitter; 4. an antenna; 5. an amplifier; 6. a second dispenser.
Detailed Description
In order to make the technical solutions in the embodiments of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be made clear below with reference to the drawings in the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length" - "width" - "upper" - "lower" - "front" - "rear" - "left" - "right" - "vertical" - "horizontal" - "top" - "bottom" - "inner" - "outer", etc. indicate orientations or positional relationships that are based on the orientation or positional relationship shown in the drawings, but are merely for convenience of describing and simplifying the description, and do not indicate or imply that the device or component being referred to must have a particular orientation.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, and sizes shown in the drawings are only used for understanding and reading the disclosure, and are not used to limit the practical conditions of the present application, so that the modifications and the changes of the structures, the changes of the ratios and the adjustments of the sizes are not essential to the technical skill of the person skilled in the art, and the changes and the adjustments of the ratios and the sizes are still within the scope of the technical contents disclosed in the present application without affecting the function and the achievable purpose of the present application.
Example 1
In the prior art, the smart television watches television programs by receiving wireless signals sent by the base station, and the base station is usually arranged at a place far away from a residential area, so that when the wireless signals are transmitted to a television terminal at the home of a user, the loss of remote transmission exists, meanwhile, the wireless signals sent by the base station can be received by the television terminal only by penetrating through a wall body, and the wireless signals sent by the base station often have signal dead corners when reaching the home of the residential area due to the loss, namely, no signals exist in some areas.
In order to solve the problem that the wireless signal is attenuated due to the long-distance transmission and the blocking of the building in the prior art, and then the indoor coverage of the wireless signal has a dead angle, as shown in fig. 1, this embodiment provides a distributed antenna system for broadcast television, including:
the micro base station comprises at least one micro base station 1, coaxial cables, a first distributor 2, splitters 3 and antennas 4, wherein the micro base station 1 is arranged in an independent building, the micro base station 1 is connected with the first distributor 2 through the coaxial cables, the micro base station 1 is connected with a plurality of splitters 3 through the first distributor 2 in a line mode, the splitters 3 are arranged in a line mode in series, the splitters 3 are arranged at intervals, and each splitter 3 is connected with the antenna 4 through one coaxial cable;
the micro base station 1 generates a radio frequency sub-signal through a radio frequency signal received by the communication module through the first distributor 2, and the radio frequency sub-signal is sent to the television terminal through an antenna 4 of the splitter 3.
It is noted that the micro base station 1 is a miniaturized base station, has a single carrier transmission power (20 MHz bandwidth) of 500mW to 10W, has a small volume and a small coverage area, and is usually disposed in a building or a dense area. In the present embodiment, the micro base stations 1 are disposed in independent buildings, that is, a building has at least one micro base station 1 for covering the whole building, and in order to better achieve signal coverage, one micro base station 1 or even a plurality of micro base stations 1 are disposed on one floor. Be provided with communication module in little base station 1, can accept and launch radio frequency signal, radio frequency signal is the television signal after the modulation, and radio frequency signal is from the signal source, and the radio frequency signal of this application indicates DTMB signal and/or loRa signal. The output interface of the micro base station 1 is connected with one end of a coaxial cable, the other end of the coaxial cable is connected with the input interface of a first distributor 2, the first distributor 2 is a distributor, and the distributor is a device which averagely distributes a video signal source into a plurality of paths of video signals. The model number of the first dispenser 2 is SFP-306 when the first dispenser 2 is a three-dispenser, and the model number of the first dispenser 2 is SYGFP-204D when the first dispenser is a two-dispenser. The radio frequency signal transmitted by the micro base station 1 generates a plurality of radio frequency sub-signals through the first distributor 2. The output ports of the first distributor 2 are connected to one ends of coaxial cables, respectively, the other ends of the coaxial cables are connected to the splitter 3, and the splitter 3 is connected to the antenna 4. It is noted that other components, such as an amplifier 5, may also be connected between the splitter 3 and the antenna 4. The antenna 4 is typically located on a wall outside the user's room or indoors, at a short distance from the television terminal.
In summary, the transmission process of the rf signal is: the signal source transmits radio frequency signals, the micro base station 1 receives the radio frequency signals through the communication module and sends the radio frequency signals to the first distributor 2 through the coaxial cable, the first distributor 2 receives the radio frequency signals and generates radio frequency sub-signals, the radio frequency sub-signals are sent to the splitter 3 through the coaxial cable, the splitter 3 sends the radio frequency sub-signals to the antenna 4 through the coaxial cable, and the antenna 4 sends the radio frequency sub-signals to the air to be received by the television terminal.
Above-mentioned a 4 systems of distributed antenna for radio and television, compare in prior art and send radio frequency signal to user's house through the base station, have radio frequency signal and let the easy problem of decay of signal, this application is through setting up a little base station 1 in independent building at least for the radio frequency signal of little base station 1 transmission is closer to television terminal, can reduce radio frequency signal's loss, transmits the signal to television terminal better. Simultaneously through coaxial cable, first distributor 2, branching ware 3, antenna 4, the radio frequency signal that will receive little basic station 1 passes through antenna 4 and transmits to user's family, and antenna 4 sets up the position nearer apart from television terminal, has broken through the blockking of a large amount of buildings, has further reduced wireless signal's loss, finally because the reduction by a wide margin of wireless signal loss for there is no longer the dead angle in wireless signal's indoor coverage.
Example 2
In order to better solve the problem of loss in the wireless signal transmission process, as shown in fig. 2, the embodiment proposes a distributed antenna 4 system for broadcast television, including: the system comprises at least one micro base station 1, coaxial cables, a first distributor 2, splitters 3 and antennas 4, wherein the micro base station 1 is arranged in an independent building, the micro base station 1 is connected with the first distributor 2 through the coaxial cables, the micro base station 1 is connected with a plurality of splitters 3 through the first distributor 2 in a line mode, the splitters 3 are arranged in a line mode in series, the splitters 3 are arranged at intervals, and each splitter 3 is connected with the antenna 4 through one coaxial cable; the micro base station 1 generates radio frequency sub-signals through radio frequency signals received by the communication module through the first distributor 2, and the radio frequency sub-signals are sent to the television terminal through the antenna 4 of the splitter 3.
The micro base station 1 is arranged in each floor of the independent building, the branching devices 3 are uniformly arranged in the floors at preset intervals, and the antenna 4 is arranged in the floors or indoors.
The distributed antenna 4 system for broadcast television further comprises: the amplifiers 5 are respectively connected with the splitter 3 through coaxial cables, and the amplifiers 5 amplify the radio frequency sub-signals received by the splitter 3 and transmit the amplified radio frequency sub-signals to the antenna 4 through the coaxial cables.
The forward amplification frequency of the amplifier 5 is 87-862MHz, and the reverse pass frequency of the amplifier 5 is 470MHz.
It should be noted that the micro base stations 1 are disposed in an independent building, that is, a building has at least one micro base station 1 for covering the whole building, in order to better implement wireless signal coverage and reduce loss in the wireless signal transmission process, in this embodiment, one micro base station 1 or even a plurality of micro base stations 1 are disposed on one floor, that is, one micro base station 1 covers one floor, so as to ensure that each user on the floor can receive wireless signals. Meanwhile, the splitters 3 are uniformly arranged in a floor at preset intervals, for example, one splitter 3 is arranged at intervals of 5 meters, one splitter 3 is connected with one antenna 4, and the antenna 4 is arranged in the floor or indoors, so that radio-frequency signals sent by the micro base station 1 are finally transmitted to a television terminal through the antenna 4 which is very close to the home of a user. In the embodiment, the radio-frequency signals are brought into the building through the coaxial cable and released, each floor is covered by the wireless signals, and the transmission attenuation of the radio-frequency signals in the coaxial cable is very small, so that the problems of wall penetration and long-distance attenuation are solved.
In addition, in the embodiment, since the distributor and the splitter 3 divide one rf signal into a plurality of rf signals, it is ensured that a plurality of users can stably receive the rf signals. However, there is a problem in that the strength of the rf signal transmitted from the base station is reduced after passing through the splitter and the splitter 3. In order to solve this problem, the present embodiment further provides an amplifier 5, which is disposed between the splitter 3 and the antenna 4, and is connected to the splitter 3 and the antenna 4 through coaxial cables, respectively, wherein the forward amplification frequency of the amplifier 5 is 87-862MHz, the reverse pass frequency is 470MHz, and the model of the amplifier 5 is MW-BLE. The amplifier 5 can increase the strength of the radio frequency signal with reduced strength, thereby reducing transmission loss. For example, the strength of the radio frequency signal transmitted by the micro base station 1 is 110dBuV, after passing through the distributor, the strength is reduced to 104dBuV, after passing through the splitter 3, the strength is reduced to 84dBuV, after passing through the amplifier 5, the strength is increased to 124dBuV, and finally the strength transmitted to the antenna 4 is 118 dBuV.
Example 3
In order to allow more users to receive radio frequency signals, as shown in fig. 3, the present application proposes a distributed antenna 4 system for broadcast television, comprising: the micro base station comprises at least one micro base station 1, coaxial cables, a first distributor 2, splitters 3 and antennas 4, wherein the micro base station 1 is arranged in an independent building, the micro base station 1 is connected with the first distributor 2 through the coaxial cables, the micro base station 1 is connected with a plurality of splitters 3 through the first distributor 2 in a line mode, the splitters 3 are arranged in a line mode in series, the splitters 3 are arranged at intervals, and each splitter 3 is connected with the antenna 4 through one coaxial cable; the micro base station 1 generates a radio frequency sub-signal through a radio frequency signal received by the communication module through the first distributor 2, and the radio frequency sub-signal is sent to the television terminal through an antenna 4 of the splitter 3. The distributed antenna 4 system for broadcast television further comprises: the amplifiers 5 are respectively connected with the splitter 3 through coaxial cables, and the amplifiers 5 amplify the radio frequency sub-signals received by the splitter 3 and transmit the amplified radio frequency sub-signals to the antenna 4 through the coaxial cables.
The distributed antenna 4 system for broadcast television further comprises: and a plurality of second distributors 6, the second distributors 6 being connected to the amplifiers 5 through the coaxial cables, respectively, and the second distributors 6 being connected to the antennas 4 through the coaxial cables.
The first distributor 2 comprises two distributors or three distributors, the input end of the first distributor 2 is connected with the micro base station 1 through a coaxial cable, and when the first distributor 2 is a two distributor, the output end of the first distributor 2 is connected with two branches 3 through a coaxial cable; when the first distributor 2 is a three-distributor, the output end of the first distributor 2 is connected to three splitters 3 through coaxial cables.
The second distributor 6 comprises two distributors or three distributors, the input end of the second distributor 6 is connected with the micro base station 1 through a coaxial cable, and when the second distributor 6 is a two distributor, the output end of the second distributor 6 is connected with two antennas 4 through a coaxial cable; when the second distributor 6 is a three-distributor, the output end of the second distributor 6 is connected to the three antennas 4 by coaxial cables.
It is noted that the distributor includes two distributors or three distributors, the distributor being one input and two outputs, and the three distributors being one input and three outputs. Taking three distributors as an example, when the first distributor 2 is the three distributors, one micro base station 1 can be connected to three antennas 4 through the first distributor 2, i.e., for transmission of radio frequency signals of three users, and when the second distributor 6 is connected between the amplifier 5 and the antennas 4, and the second distributor 6 is the three distributors, one micro base station 1 can be connected to nine antennas 4 through the first distributor 2 and the second distributor 6, and can provide radio frequency signals to nine users. Thus enabling more users to receive the rf signal.
In the present embodiment, the first distributor 2 corresponds to a main distributor, and the second distributor 6 corresponds to a sub-distributor, which corresponds to the present embodiment using a two-stage distributor. When more subscribers are to be supplied with radio frequency signals, it is also possible to connect third distributors, even fourth distributors, fifth distributors, etc. between the second distributor 6 and the antenna 4, corresponding to the provision of multi-stage distributors, so that more subscribers can receive the radio frequency signals, while amplifiers 5 are also required between the third distributors, even fourth distributors, fifth distributors, and the antenna 4, respectively.
Example 4
In order to receive and transmit various radio frequency signals and meet various signal requirements of users, as shown in fig. 4, the embodiment proposes a distributed antenna 4 system for broadcast television, including: the system comprises at least one micro base station 1, coaxial cables, a first distributor 2, splitters 3 and antennas 4, wherein the micro base station 1 is arranged in an independent building, the micro base station 1 is connected with the first distributor 2 through the coaxial cables, the micro base station 1 is connected with a plurality of splitters 3 through the first distributor 2 in a line mode, the splitters 3 are arranged in a line mode in series, the splitters 3 are arranged at intervals, and each splitter 3 is connected with the antenna 4 through one coaxial cable; the micro base station 1 generates a radio frequency sub-signal through a radio frequency signal received by the communication module through the first distributor 2, and the radio frequency sub-signal is sent to the television terminal through an antenna 4 of the splitter 3.
The communication module comprises a DTMB communication module 11 and an LoRa communication module 12, the radio-frequency signals comprise DTMB signals and LoRa signals, the micro base station 1 receives the DTMB signals through the DTMB communication module 11 and generates DTMB sub-signals through a first distributor 2, and the DTMB sub-signals are sent to the television terminal through the antenna 4; little basic station 1 passes through loRa communication module 12 receives the loRa signal, and will the loRa signal generates the loRa sub-signal through first distributor 2, the loRa sub-signal passes through antenna 4 sends to television terminal.
The frequency range of the DTMB signal is 87-862MHz.
The frequency of the LoRa signal is 470MHz.
It should be noted that, when the user uses the smart television, two common signal forms are the DTMB signal and the LoRa signal, in order to enable the television terminal to receive the two signals, the micro base station 1 is provided with a DTMB communication module 11 and a LoRa communication module 12, and the transmission processes of the DTMB signal and the LoRa signal are respectively: the micro base station 1 receives the DTMB signal through the DTMB communication module 11, the DTMB signal is generated into a DTMB sub-signal through the first distributor 2, and the DTMB sub-signal is sent to the television terminal through the antenna 4. Micro base station 1 receives the loRa signal through loRa communication module 12 to generate the loRa sub-signal with the loRa signal through first distributor 2, the loRa sub-signal passes through antenna 4 and sends to television terminal. And the frequency range of the DTMB signal is 87-862MHz and the frequency of the LoRa signal is 470MHz. Through setting up DTMB communication module 11 and loRa communication module 12, make this embodiment can send DTMB signal and loRa signal to television terminal, satisfied user's multiple signal demand.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A distributed antenna system for broadcast television, comprising: the micro base station is connected with the first distributor through the coaxial cable, the micro base station is connected with a plurality of splitter circuits through the first distributor, the splitter circuits are connected in series and provided with a plurality of splitters arranged at intervals, and each splitter is connected with the antenna through one coaxial cable;
and the micro base station generates a radio frequency sub-signal through a radio frequency signal received by the communication module through the first distributor, and the radio frequency sub-signal is sent to the television terminal through an antenna of the splitter.
2. The distributed antenna system for broadcasting television according to claim 1, wherein the micro base station is provided in each floor of the independent building, the splitters are uniformly provided in the floor at a predetermined distance, and the antenna is provided in the floor or indoors.
3. The distributed antenna system for broadcast television of claim 1, further comprising: the amplifiers are respectively connected with the branching device through coaxial cables, amplify the radio frequency sub-signals received by the branching device and transmit the amplified radio frequency sub-signals to an antenna through the coaxial cables.
4. The distributed antenna system for broadcast television of claim 3, wherein the forward amplification frequency of the amplifier is 87-862MHz and the reverse pass frequency of the amplifier is 470MHz.
5. The distributed antenna system for broadcast television of claim 3, further comprising: and the second distributors are respectively connected with the amplifiers through the coaxial cables, and are connected with the antenna through the coaxial cables.
6. The distributed antenna system for broadcast television according to claim 5, wherein the first distributor includes two distributors or three distributors, an input end of the first distributor is connected to the micro base station through a coaxial cable, and an output end of the first distributor is connected to two splitters through a coaxial cable when the first distributor is a two distributor; when the first distributor is a three-distributor, the output end of the first distributor is connected with three branches through coaxial cables.
7. The distributed antenna system for broadcast television according to claim 5, wherein the second distributor comprises a two-way distributor or a three-way distributor, an input end of the second distributor is connected to the micro base station through a coaxial cable, and when the second distributor is a two-way distributor, an output end of the second distributor is connected to two antennas through a coaxial cable; and when the second distributor is a three-distributor, the output end of the second distributor is connected with the three antennas through coaxial cables.
8. The distributed antenna system for broadcasting television according to claim 1, wherein the communication module comprises a DTMB communication module and a LoRa communication module, the radio frequency signal comprises a DTMB signal and a LoRa signal, the micro base station receives the DTMB signal through the DTMB communication module and generates a DTMB sub-signal through the first distributor, and the DTMB sub-signal is transmitted to the television terminal through the antenna; little basic station passes through loRa communication module receives the loRa signal, and will the loRa signal generates the loRa sub-signal through first distributor, the loRa sub-signal passes through antenna routing to television terminal.
9. The distributed antenna system for broadcast television of claim 8, wherein the DTMB signal has a frequency in the range of 87-862MHz.
10. The distributed antenna system for broadcast television of claim 8, wherein the frequency of the LoRa signal is 470MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222674813.1U CN218587338U (en) | 2022-10-11 | 2022-10-11 | Distributed antenna system for broadcast television |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222674813.1U CN218587338U (en) | 2022-10-11 | 2022-10-11 | Distributed antenna system for broadcast television |
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| CN218587338U true CN218587338U (en) | 2023-03-07 |
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| CN202222674813.1U Active CN218587338U (en) | 2022-10-11 | 2022-10-11 | Distributed antenna system for broadcast television |
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