CN217469935U - Circuit for connecting short-wave radio station and external antenna tuner - Google Patents
Circuit for connecting short-wave radio station and external antenna tuner Download PDFInfo
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- CN217469935U CN217469935U CN202221549419.9U CN202221549419U CN217469935U CN 217469935 U CN217469935 U CN 217469935U CN 202221549419 U CN202221549419 U CN 202221549419U CN 217469935 U CN217469935 U CN 217469935U
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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 utility model discloses a circuit that short wave radio set and external antenna tuner are connected, including short wave radio set and external antenna tuner, wherein short wave radio set includes detection circuitry, modem circuit, control circuit and power supply circuit. The short-wave radio station is connected with the external antenna tuner through a three-wire-in-one circuit, the combined end of the three-wire-in-one circuit is connected with the external antenna tuner, the three-wire end comprises a power supply interface end, a communication control interface end and a radio frequency interface end, the power supply interface end is connected with a power supply signal of the short-wave radio station, the communication control interface end is connected with a modulation/demodulation signal of the short-wave radio station, and the radio frequency interface end is connected with a radio frequency input/output signal of the short-wave radio station; the utility model has the advantages that: the radio frequency cable can realize communication between the short-wave radio station and the external antenna line device, so that the connection relation between the devices is reduced; the antenna tuner can also be used for controlling and communicating an external antenna tuner in the radio station upgrading and transforming process, and the upgrading and transforming of the radio station functions can be realized.
Description
Technical Field
The utility model relates to a short wave communication technical field, specifically speaking relate to a circuit that short wave radio and external antenna tuner are connected.
Background
At present, the antenna tuner of on-vehicle and fixed class short wave radio set is mostly external short wave antenna tuner, and the function of novel short wave radio set is along with the development of short wave communication technique and system, and with the external antenna tuner between the real-time interaction that should realize radio frequency signal, still need carry out real time control to antenna tuner, antenna tuner is the equipment that realizes the matching between short wave radio set and the short wave antenna, and for active equipment, also need provide required DC power supply voltage for antenna tuner. The antenna tuner and the short-wave radio station are required to be interacted and detected in real time, a certain requirement is met for communication distance, the radio-frequency signals of the short-wave radio station are required to be effectively transmitted, and various signals cannot interfere with each other, so that a reliable and efficient method is required to be selected for communication between the short-wave radio station and the external antenna tuner.
The short-wave radio station has entered the fourth generation communication that cognitive radio technology and full frequency channel receiving technology combine through the development of second generation self-adaptation system, third generation automatic communication system, and this communication mode also can be used to the radio station and upgrade and reform transform, need not to research and develop the short-wave radio station function that the transmitting element can promote the present stage and use again.
SUMMERY OF THE UTILITY MODEL
The utility model discloses just be in order to solve the circuit that a short wave radio and external antenna tuner are connected that above-mentioned technical problem and design.
The utility model provides a technical scheme that its technical problem adopted is:
a circuit for connecting a short-wave radio station and an external antenna tuner comprises the short-wave radio station and the external antenna tuner, wherein the short-wave radio station comprises a detection circuit, a modulation and demodulation circuit, a control circuit and a power circuit; the short-wave radio station is connected with the external antenna tuner through a three-wire-in-one circuit, the combined end of the three-wire-in-one circuit is connected with the external antenna tuner, the three-wire end of the three-wire-in-one circuit comprises a power supply interface end, a communication control interface end and a radio frequency interface end, the power supply interface end is connected with a power supply signal of the short-wave radio station, the communication control interface end is connected with a modulation/demodulation signal of the short-wave radio station, and the radio frequency interface end is connected with a radio frequency input/output signal of the short-wave radio station; this circuit is added at the station side and communication software is loaded into the device, which also needs to be added at the antenna tuner side. The interaction of a power supply, a radio frequency signal and a digital control signal between the short-wave radio station and the antenna tuner is realized through a radio frequency cable. The short-wave radio station upgrading and reconstructing device can also be used for an equipment end added during the short-wave radio station upgrading and reconstructing functions.
The three-in-one circuit comprises a high-pass filter circuit and a low-pass filter circuit; the high-pass filter circuit realizes high-frequency signal transmission between the external antenna tuner and radio frequency input/output signals of the short-wave radio station; the low-pass filter circuit realizes low-frequency signal transmission between the external antenna tuner and a power signal and a modulation/demodulation signal of the short-wave radio station. The three-wire integrated circuit provides a path for the radio frequency signal of 1.6MHz-30MHz through the high-pass filter circuit, and attenuates direct current and digital signals; the low-pass filter circuit mainly provides a passage for the data signal and prevents the radio frequency signal from entering the data processing part circuit.
The high-pass filter circuit consists of capacitors C1 and C2 and an inductor L1; two ends of the series capacitors C1 and C2 are an integrated end and a radio frequency interface end respectively, and a connection point of the series capacitors C1 and C2 is grounded through the inductor L1.
The utility model provides a circuit that shortwave radio and external antenna tuner are connected, electric capacity C1 among the high pass filter circuit is 6800 pF's ceramic high radio frequency power electric capacity, and electric capacity C2 is 3300 pF's ceramic high radio frequency power electric capacity, and inductance L1 is 8.2 uH's ferrite magnetic material inductance.
The circuit for connecting the short-wave radio and the external antenna tuner is characterized in that the low-pass filter circuit is composed of an inductor L6, an inductor L7, an inductor L8 and a capacitor C3, two ends of the inductor L6 and two ends of the inductor L7 which are connected in series are respectively a unified end and a communication control interface end, a connection point of the inductor L6 and the inductor L7 which are connected in series is a power interface end, meanwhile, the power interface end is connected with one end of the capacitor C3 through the inductor L8, and the other end of the capacitor C3 is grounded.
According to the circuit for connecting the short-wave radio station and the external antenna tuner, the communication control interface end of the low-pass filter circuit is grounded through the adjustable resistor R5.
In the circuit for connecting the short-wave radio set and the external antenna tuner, a capacitor C3 in the low-pass filter circuit is a 0.015uF ceramic high-radio-frequency power capacitor, an inductor L6 is a 20uH ferrite magnetic material inductor, an inductor L7 is a 40uH ferrite magnetic material inductor, and an inductor L8 is a 0.68uH ferrite magnetic material inductor.
The circuit that short wave radio station and external antenna tuner are connected, adjustable resistance R5 is transient surge protector.
The modulation and demodulation circuit comprises a single tone driving circuit, a single tone demodulation circuit and an antenna tuner detection circuit, and the single tone driving circuit, the single tone demodulation circuit and the antenna tuner detection circuit respectively generate a 76.8KHz data signal and an 57.29MHz data signal.
Based on the short-wave radio station and the external antenna tuner, the communication method is realized, the detection circuit part can detect whether the antenna tuner is connected or not, and the switch can control whether the direct-current voltage output is provided or not.
The method for realizing communication based on the short-wave radio station and the external antenna tuner can be used for realizing communication without redeveloping a transmitting part circuit when the function of the short-wave radio station used at the present stage is improved.
The utility model has the advantages that: the utility model discloses can realize transmitting digital signal, radio frequency signal and the compound three signal of power signal together, reduce the interface between the equipment, when the radio station function promotes, the secondary development of reducible equipment has reduced development cost.
Drawings
FIG. 1 is a general functional block diagram of the circuit of the present invention;
FIG. 2 is a functional block diagram of a modem circuit;
FIG. 3 is a schematic diagram of a high pass filter circuit;
FIG. 4 is a schematic diagram of a low pass filter circuit;
FIG. 5 is a schematic diagram of a three-wire-in-one circuit.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1 and 5, the circuit for connecting a short wave radio set and an external antenna tuner of the present invention comprises a short wave radio set and an external antenna tuner, wherein the short wave radio set comprises a detection circuit, a modulation and demodulation circuit and a control circuit; the short-wave radio station is connected with the external antenna tuner through a three-wire-in-one circuit, the combined end of the three-wire-in-one circuit is connected with the external antenna tuner, the three-wire end of the three-wire-in-one circuit comprises a power supply interface end, a communication control interface end and a radio frequency interface end, the power supply interface end is connected with a power supply signal of the short-wave radio station, the communication control interface end is connected with a modulation/demodulation signal of the short-wave radio station, and the radio frequency interface end is connected with a radio frequency input/output signal of the short-wave radio station;
as shown in fig. 3. The three-in-one circuit comprises a high-pass filter circuit and a low-pass filter circuit; the high-pass filter circuit realizes high-frequency signal transmission between the external antenna tuner and radio frequency input/output signals of the short-wave radio station; the low-pass filter circuit realizes low-frequency signal transmission between the external antenna tuner and a power signal and a modulation/demodulation signal of the short-wave radio station.
The high-pass filter circuit consists of capacitors C1, C2 and an inductor L1; two ends of the series capacitors C1 and C2 are respectively a unified end and a radio frequency interface end, and the connection point of the series capacitors C1 and C2 is grounded through the inductor L1.
The utility model provides a circuit that shortwave radio and external antenna tuner are connected, electric capacity C1 among the high pass filter circuit is 6800 pF's ceramic high radio frequency power electric capacity, and electric capacity C2 is 3300 pF's ceramic high radio frequency power electric capacity, and inductance L1 is 8.2 uH's ferrite magnetic material inductance.
As shown in fig. 4 and 5, the low-pass filter circuit is composed of inductors L6, L7, L8, and a capacitor C3, two ends of the inductors L6 and L7 connected in series are respectively a unified end and a communication control interface end, a connection point of the inductors L6 and L7 connected in series is a power interface end, the power interface end is connected with one end of the capacitor C3 through the inductor L8, and the other end of the capacitor C3 is grounded.
According to the circuit for connecting the short-wave radio station and the external antenna tuner, the communication control interface end of the low-pass filter circuit is grounded through the adjustable resistor R5.
The circuit that short wave radio and external antenna tuner are connected which characterized in that: the capacitor C3 in the low-pass filter circuit is a 0.015uF ceramic high-radio-frequency power capacitor, the inductor L6 is a 20uH ferrite magnetic material inductor, the inductor L7 is a 40uH ferrite magnetic material inductor, and the inductor L8 is a 0.68uH ferrite magnetic material inductor.
The circuit that short wave radio station and external antenna tuner are connected, adjustable resistance R5 is transient surge protector.
As shown in FIG. 2, the circuit for connecting the short wave radio station with the external antenna tuner is characterized in that the modulation and demodulation circuit comprises a single tone driving circuit, a single tone demodulation circuit and an antenna tuner detection circuit, and a data signal of 76.8KHz and a data signal of 57.29MHz are respectively generated. The antenna tuner detection circuit detects whether the antenna tuner is connected or not through the window comparison circuit according to the size of the direct current signal sent to the access, and controls whether the direct current power supply voltage is output to the antenna tuner for use or not.
The modulation/demodulation circuit mainly comprises a single-tone driver, an active band-pass filter, a full-wave rectifier and an integrating/level circuit. The antenna tuner is mainly used for finishing data information communication between the controller and an external antenna tuner, thereby realizing the control of the antenna tuner by the television.
The specific work flow is as follows: under the normal condition of direct current power supply of the antenna tuner, a logic signal 76.8KHz sent by a radio station is firstly amplified by a single-tone driving circuit, then is combined with a 24V direct current voltage into a composite signal, is filtered by a low-pass filter, is combined with a radio frequency signal into a three-wire-in-one composite signal, and then is sent to the external antenna tuner through a radio frequency single feeder; when the external antenna display tuner receives the data signal, the external antenna display tuner responds a data signal to the controller, the data signal passes through the active band-pass filter, the full-wave rectifier and the integrating/level comparator to obtain an 57.92KHz signal, and then the 57.92KHz signal is sent to the control unit for processing, so that data communication between the radio station and the external antenna tuner is realized.
The present invention is not limited to the above-mentioned best mode, and any other products similar or identical to the present invention, which can be obtained by anyone under the teaching of the present invention, all fall within the protection scope of the present invention.
Claims (8)
1. A circuit for connecting a short-wave radio station and an external antenna tuner comprises the short-wave radio station and the external antenna tuner, wherein the short-wave radio station comprises a detection circuit, a modulation and demodulation circuit, a control circuit and a power circuit; the method is characterized in that: the short-wave radio station is connected with the external antenna tuner through a three-wire-in-one circuit, the combined end of the three-wire-in-one circuit is connected with the external antenna tuner, the three-wire end of the three-wire-in-one circuit comprises a power supply interface end, a communication control interface end and a radio frequency interface end, the power supply interface end is connected with a power supply signal of the short-wave radio station, the communication control interface end is connected with a modulation/demodulation signal of the short-wave radio station, and the radio frequency interface end is connected with a radio frequency input/output signal of the short-wave radio station;
the three-in-one circuit comprises a high-pass filter circuit and a low-pass filter circuit; the high-pass filter circuit realizes high-frequency signal transmission between the external antenna tuner and radio frequency input/output signals of the short-wave radio station; the low-pass filter circuit realizes low-frequency signal transmission between the external antenna tuner and the power signal and the modulation/demodulation signal of the short-wave radio station.
2. The circuit of claim 1, wherein the short-wave radio is connected with an external antenna tuner, and the circuit comprises: the high-pass filter circuit consists of capacitors C1 and C2 and an inductor L1; two ends of the series capacitors C1 and C2 are respectively a unified end and a radio frequency interface end, and the connection point of the series capacitors C1 and C2 is grounded through the inductor L1.
3. The circuit of claim 2, wherein the short-wave radio is connected with an external antenna tuner, and the short-wave radio comprises: capacitor C1 in the high-pass filter circuit is a 6800pF ceramic high-radio-frequency power capacitor, capacitor C2 is a 3300pF ceramic high-radio-frequency power capacitor, and inductor L1 is an 8.2uH ferrite magnetic material inductor.
4. The circuit of claim 1, wherein the short-wave radio is connected with an external antenna tuner, and the circuit comprises: the low-pass filter circuit is composed of inductors L6, L7, L8 and a capacitor C3, two ends of each of the inductors L6 and L7 which are connected in series are respectively a unified end and a communication control interface end, a connection point of the inductors L6 and L7 which are connected in series is a power interface end, meanwhile, the power interface end is connected with one end of the capacitor C3 through the inductor L8, and the other end of the capacitor C3 is grounded.
5. The circuit of claim 4, wherein the short-wave radio is connected with an external antenna tuner, and the short-wave radio comprises: the communication control interface end of the low-pass filter circuit is grounded through an adjustable resistor R5.
6. The circuit of claim 4, wherein the short-wave radio is connected with an external antenna tuner, and the short-wave radio comprises: the capacitor C3 in the low-pass filter circuit is a 0.015uF ceramic high-radio-frequency power capacitor, the inductor L6 is a 20uH ferrite magnetic material inductor, the inductor L7 is a 40uH ferrite magnetic material inductor, and the inductor L8 is a 0.68uH ferrite magnetic material inductor.
7. The circuit of claim 5, wherein the short-wave radio is connected with an external antenna tuner, and the short-wave radio comprises: the adjustable resistor R5 is a transient surge protector.
8. The circuit of claim 1, wherein the short-wave radio is connected with an external antenna tuner, and the circuit comprises: the modulation and demodulation circuit comprises a single-tone driving circuit, a single-tone demodulation circuit and an antenna tuner detection circuit, and respectively generates a 76.8KHz data signal and an 57.29MHz data signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221549419.9U CN217469935U (en) | 2022-06-21 | 2022-06-21 | Circuit for connecting short-wave radio station and external antenna tuner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221549419.9U CN217469935U (en) | 2022-06-21 | 2022-06-21 | Circuit for connecting short-wave radio station and external antenna tuner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217469935U true CN217469935U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221549419.9U Active CN217469935U (en) | 2022-06-21 | 2022-06-21 | Circuit for connecting short-wave radio station and external antenna tuner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217469935U (en) |
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2022
- 2022-06-21 CN CN202221549419.9U patent/CN217469935U/en active Active
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