CN2273931Y - Four way mixed amplifier - Google Patents
Four way mixed amplifier Download PDFInfo
- Publication number
- CN2273931Y CN2273931Y CN 96217752 CN96217752U CN2273931Y CN 2273931 Y CN2273931 Y CN 2273931Y CN 96217752 CN96217752 CN 96217752 CN 96217752 U CN96217752 U CN 96217752U CN 2273931 Y CN2273931 Y CN 2273931Y
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Abstract
The utility model discloses a four-way mixed amplifier which is suitable for a television antenna. The utility model is composed of a circuit board (1), a box cover (11), an amplifying box (5), and a plurality of different modules. The input terminal of the four-way mixed amplifier is provided with a V terminal input joint (10) and U terminal input joints (7), (8), and (9); the input terminal of the four-way mixed amplifier is also provided with an adjustable attenuation circuit; users can carry out the adjustment and the replacement of the modules according to the strength of the television signal at the receiving point.
Description
This practicality relates to a kind of device of outdoor television receiving antenna amplifier.
Outdoor television receiving antenna, major part all are furnished with antenna amplifier antennafire, with the loss of compensation TV signal in transmission, for example Chinese patent of applying for regard to me.
Name is called: active multi-direction full channel tv receiving antenna
The patent No. is: 88214562.2
Name is called: full channel tv receiving antenna
The patent No. is: the employed amplifier circuit of 94203340.X is exactly the most popular antenna amplifier antennafire of present China.
The radio and television of U section constantly increase at present, TV signal have have by force a little less than, can both well receive in order to solve strong and weak TV signal, common way is design and makes the different active antenna of gain amplifier, Zhejiang Province 001 company of electronics group just designs 01,02,03,04,05 type antenna, its gain is respectively 0dB, 8dB, 18dB, 30dB, antenna about 40dB has satisfied user's needs basically, in view of the national conditions of China, have a vast territory, the TV popularity rate is less than 80%, and many users also belong to the initial purchase television set, for television set, it is few to the greatest extent that the knowledge of television antenna is known, buy one pair of antenna often earlier and try, improper transposing has again increased many troubles.
The purpose of this utility model is that a kind of TV antenna booster device will be provided, and is equipped with several different amplification modules simultaneously, and the user can change module easily voluntarily.To solve local television reception problem.
The utility model is to achieve the goal by following structure, the utility model is by amplifier lid, amplifier box, wiring board, the amplification module of different size is formed, the signal input part that it is characterized in that wiring board is provided with adjustable TV signal attenuator, the user can regulate No. four attenuators earlier according to actual conditions, make each road enter the TV signal intensity basically identical of amplification module, then according to reception condition, change suitable amplification module, the scope of application that this has just increased by one pair of antenna has greatly made things convenient for the user.
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing 1 is the utility model outline drawing
Wiring board (1) is contained in the amplification case (5), and wiring board (1) is provided with the signal output connector (2) after the amplification, securing member (3), indicator light (4), four-way input securing member (6), U segment signal input adapter (7), (8), (9), V segment signal input adapter (10), lid (11) cover on amplification case (5), also are provided with securing member (12) on the base (5), (13), its effect is four-way amplifier can be fixed in the antenna vertical rod.
Accompanying drawing 2 is that the utility model electrical schematic diagram wiring board (1) is provided with four tunnel inputs (Fig. 2), and V is the input adapter of V section TV signal, U1, U2, U3 are the input adapter of three road U section TV signal, W1, W2, W3, W4 are that potentiometer is serially connected in respectively in four input circuits, constitute signal attenuator, by capacitor C 1, inductance L 3, the L4 polyphone in inductance L 3, connects capacitor C 2 ground connection on the tie point of L4, constitute V section filter circuit, by capacitor C 3, the C4 polyphone, and in the two ends of capacitor C 3 connection inductance L 5, L6 ground connection, the circuit of the filtering of formation U1 section is by capacitor C 5, the C6 polyphone, two ends in capacitor C 5 connect inductance L 7 respectively, L8 ground connection, the input circuit of formation U2 section, by capacitor C 7, the C8 polyphone connects inductance L 9, L10 ground connection at the two ends of capacitor C 7, constitute the input filter circuit of U3 section, L11 is the lightning protection inductance, and the TV signal that No. four antennas receive is mixed behind No. four filter circuits, in capacitor C 9 input amplification module OP, C10 is an output capacitance, L1 is that high frequency is gripped circle, and power supply is imported by signal output part, by diode D1, capacitor C 17, resistance R 1, R2, capacitor C 11, C12, C13, C14, C15 forms current rectifying and wave filtering circuit.
With embodiment the utility model is further described below:
Antenna receiving signal is inserted the U section joint and the V section joint of four-way amplification case device respectively by wave band, energized, open television set, watch V section TV earlier, open four-way mixer amplifier lid, can see that the vernier knob of 4 attenuators can use hand adjustment V section attenuator, make its image the most clear, receive U section TV signal again, regulate the decay potentiometer in the U section equally, again in U section transposing TV station, debugging again, till directly four attenuators all being mixed up, not strong as the reduction picture signal, for example image has snow, this moment, the replaceable amplification module bigger amplification module that will gain was changed, and is opposite as scalloping, amplifier generation self-excitation occur, image is a slice decorative pattern, should change the less amplification module of gain amplifier.
Claims (2)
1, a kind of four-way mixer amplifier is put in large (5) by wiring board (1), amplifies lid (11) and amplification module and forms, and it is characterized in that wiring board (1) is contained in the amplification case (5); Wiring board (1) is provided with signal output connector (power supply input adapter) (2) securing members (3) indicator lights (4) after the amplification, 4 tunnel input securing members (6), U segment signal input adapter (7), (8), (9) V segment signal input adapter (10); Lid (11) covers on amplification case (5), also is provided with securing member (12), (13) on the amplification case (5), the four-way mixer amplifier can be fixed in the antenna vertical rod.
2, four-way mixer amplifier as claimed in claim 1 is characterized in that, wiring board (1) is provided with four tunnel inputs, and V is the input adapter of V section TV signal, U1; U2, U3 are the input adapter of three road U section TV signal, and W1, W2, W3, W4 are that potentiometer is serially connected in respectively in four input circuits; Constitute signal attenuator; By capacitor C 1, inductance L 3, L4 polyphone, in inductance L 3, connect capacitor C 2 ground connection on the tie point of L4, constitute V section filter circuit, by capacitor C 3, the C4 polyphone, and in the two ends of capacitor C 3 connection inductance L 5, L6 ground connection, constitute the circuit of the filtering of U1 section, by capacitor C 5, the C6 polyphone, two ends in capacitor C 5 connect inductance L 7 respectively, L8 ground connection; Constitute the input circuit of U2 section, by capacitor C 7, the C8 polyphone connects inductance L 9 at the two ends of capacitor C 7, L10 ground connection, the input filter circuit of formation U3 section, L11 is the lightning protection inductance, the TV signal that No. four antennas receive is mixed behind No. four filter circuits, in capacitor C 9 input amplification module OP, C10 is an output capacitance, and L1 is that high frequency is gripped circle, and power supply is imported by signal output part, by diode D1, capacitor C 17, resistance R 1, R2, capacitor C 11, C12, C13, C14, C15 forms current rectifying and wave filtering circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96217752 CN2273931Y (en) | 1996-09-12 | 1996-09-12 | Four way mixed amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96217752 CN2273931Y (en) | 1996-09-12 | 1996-09-12 | Four way mixed amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2273931Y true CN2273931Y (en) | 1998-02-04 |
Family
ID=33898788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96217752 Expired - Fee Related CN2273931Y (en) | 1996-09-12 | 1996-09-12 | Four way mixed amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2273931Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109417216A (en) * | 2016-07-11 | 2019-03-01 | 凯瑟雷恩欧洲股份公司 | The amplifier module that can be replaced at least two, mobile radio antenna for being fixed on mast shape or wall shape bracket |
-
1996
- 1996-09-12 CN CN 96217752 patent/CN2273931Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109417216A (en) * | 2016-07-11 | 2019-03-01 | 凯瑟雷恩欧洲股份公司 | The amplifier module that can be replaced at least two, mobile radio antenna for being fixed on mast shape or wall shape bracket |
| US10992031B2 (en) | 2016-07-11 | 2021-04-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Mobile communications antenna for mounting on a mast or wall-like support with at least two interchangeable amplifier modules |
| CN109417216B (en) * | 2016-07-11 | 2021-11-05 | 瑞典爱立信有限公司 | Mobile radio antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |