CN2199603Y - Omnibearing telescopic TV aerial - Google Patents
Omnibearing telescopic TV aerial Download PDFInfo
- Publication number
- CN2199603Y CN2199603Y CN 94240460 CN94240460U CN2199603Y CN 2199603 Y CN2199603 Y CN 2199603Y CN 94240460 CN94240460 CN 94240460 CN 94240460 U CN94240460 U CN 94240460U CN 2199603 Y CN2199603 Y CN 2199603Y
- Authority
- CN
- China
- Prior art keywords
- antenna
- receiving antenna
- telescopic
- folded dipole
- dipoles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model relates to an omnibearing telescopic TV aerial. A set of aerials are assembled by three folded dipoles with same length; three sets of the aerials which are assembled by three folded dipoles with same length are assembled and fixed on a same vertical axis; included angles with 60DEG are formed among one another. Each of the folded dipoles is provided with a fully enclosed box for dipoles; a sleeve telescopic structure is adopted by the folded dipoles; the folded dipoles are connected and fixed by selftapping screws after the lengths of the folded dipoles are set. The utility model provides with an active amplifier, the TV signals which are received by the three sets of aerials respectively enter self V/U mixers whose output ends are connected in parallel with each other, the TV signals are transmitted to the amplifier, and the TV signals are transmitted to the TV after being amplified.
Description
The utility model relates to television receiving antenna, relates in particular to a kind of comprehensive telescopic television receiving antenna.
Now, commercially available television receiving antenna, no matter be single non-scanning antenna, still single rotary type antenna in order to reach best reception, has all been emphasized the directivity of antenna.Single non-scanning antenna does not have the selectivity to TV station, though single rotary type antenna has had the selected property to TV station in the directivity that keeps antenna, but because antenna is in outdoor mounted, expose to the weather and drench with rain, will soon be ineffective because of rotating, loose contact and influence reception to TV signal.
The purpose of this utility model is, overcomes the deficiencies in the prior art part, provides a kind of the needs to rotate, and just can capture the comprehensive telescopic television receiving antenna of the TV signal of each each channel of orientation.
Comprehensive telescopic television receiving antenna described in the utility model, it is the full channel tv receiving antenna that is combined into one pair of VHF and UHF compatibility by three folded dipoles, folded dipole is the sleeve combination form, the compatible all-channel television antenna folded dipole of three VHF like this and UHF is combined, be fixed on the same vertical axis by certain distance, form 60 ° of angles each other and arrange.During aggregate erection, identical length is pulled out at the two ends of folded dipole from sleeve, can use through fixing.Because each pays the ability that folded dipole on the television receiving antenna all has the received television signal of two-way (promptly forward and backward), like this, three television antenna folded dipoles have just obtained the receive direction of six maximums.Entire antenna constitutes the comprehensive television signal receiving system of a circle.Therefore, do not need rotary antenna, just can be satisfactorily at 360 ° of comprehensive received television signals.In order to adapt to the needs in mountain area or the more weak area of TV signal, comprehensive telescopic television receiving antenna described in the utility model can be used with activated amplifier.The TV signal of three antenna folded dipole receptions enters V/U blender separately, with feeder line that each V/U blender output is in parallel one by one, be transferred to amplifier, after amplifier carries out processing and amplifying with signal, flow to television set, thereby obtain enough TV signal, obtain best view reception effect.Each folded dipole on every pair of antenna is provided with an oscillator box.Be anti-water logging and antirust dustproof, oscillator box adopts totally-enclosed form.The antenna oscillator of comprehensive telescopic television receiving antenna described in the utility model adopts telescopic version.Way with elongating or shorten folded dipole has promptly changed receiving channels, has reached antenna resonance and best reception.This promptly can be arbitrarily made with the television channel that is adapted to, and realizes best reception, can distinguish strongly in TV signal again and be combined into unconformable channel, is used for suppressing the TV image distortion phenomenon that strong signal causes.
Comprehensive telescopic television receiving antenna described in the utility model is easy to install, during installation, only need pull out each folded dipole to certain position, make amount to the length of shaking identical, to lining.Take from tapping and fixed in the connection place, then every pair of antenna is installed on the same insulated tube by in advance setting, the erection method frame height by existing outdoor television antenna can carry out comprehensive reception.
Comprehensive telescopic television receiving antenna described in the utility model, receive frequency is 40～860MHz, gain 5～10dB.Both can be used as the reception antenna of domestic television set, can be used as small-sized community antenna receiving system again.Cost is low, and function is many, and is easy for installation, and the scope of application is wide, and the life-span is long, and effect is remarkable.
Accompanying drawing is the structural representation of comprehensive telescopic television receiving antenna described in the utility model.
Fig. 1 is the oscillator arrangement architecture schematic diagram of comprehensive telescopic television receiving antenna described in the utility model.
Fig. 2 is the structural representation of overlooking after the comprehensive telescopic television receiving antenna combination described in the utility model.
Fig. 3 is the V/U blender wiring schematic diagram of comprehensive telescopic television receiving antenna described in the utility model.
1-folded dipole 2-oscillator box 3-V/U blender
Referring now to accompanying drawing, be described as follows in conjunction with the embodiments:
Comprehensive telescopic television receiving antenna described in the utility model, the folded dipole (1) that includes three VHF/UHF compatibilities is formed, and folded dipole (1) adopts sleeve rod-pulling type structure, makes folded dipole (1) have Telescopic.Three folded dipoles (1) are fixed on the same vertical axis by certain distance, form 60 ° of angles each other and arrange.The two ends of folded dipole (1), are pulled out pull bar certain length and are used screw to be fixed in the connection place by the requirement of receiving channels as the pull bar in the sleeve.Each folded dipole (1) all is furnished with oscillator box (2), and oscillator box (2) is totally-enclosed form.The front upper place of oscillator box (2) is provided with protecting cover, and the protecting cover that upwards pushes away the front can be opened oscillator box (2).So both help maintaining, avoided the immersion and the corrosion phenomena that cause because of the oscillator box bad sealing again.The lead-out wire of oscillator box (2) connects the input of V/U blender (3), with the output parallel connection of feeder line, be transferred to signal amplifier, after signal amplifier carries out processing and amplifying again with the V/U blender, flow to television set, thereby make television set obtain best view reception effect.
Claims (3)
1, a kind of comprehensive telescopic television receiving antenna, include folded dipole (1), V/U blender composition, it is characterized in that having the full channel tv receiving antenna of three VHF/UHF compatibilities to combine, be fixed on the same vertical axis, form 60 ° of angles each other and arrange.
2, comprehensive telescopic television receiving antenna according to claim 1 is characterized in that folded dipole (1) is the sleeve combination form, pulls out folded dipole during installation and is fixed in the connection place with self-tapping screw.
3, comprehensive telescopic television receiving antenna according to claim 1 is characterized in that each antenna oscillator on every pair of antenna is provided with an oscillator box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94240460 CN2199603Y (en) | 1994-05-18 | 1994-05-18 | Omnibearing telescopic TV aerial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94240460 CN2199603Y (en) | 1994-05-18 | 1994-05-18 | Omnibearing telescopic TV aerial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2199603Y true CN2199603Y (en) | 1995-05-31 |
Family
ID=33847449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94240460 Expired - Fee Related CN2199603Y (en) | 1994-05-18 | 1994-05-18 | Omnibearing telescopic TV aerial |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2199603Y (en) |
-
1994
- 1994-05-18 CN CN 94240460 patent/CN2199603Y/en not_active Expired - Fee Related
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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 |