CN2084234U - Special aerial for intercom capable of precision tuning - Google Patents
Special aerial for intercom capable of precision tuning Download PDFInfo
- Publication number
- CN2084234U CN2084234U CN 90219637 CN90219637U CN2084234U CN 2084234 U CN2084234 U CN 2084234U CN 90219637 CN90219637 CN 90219637 CN 90219637 U CN90219637 U CN 90219637U CN 2084234 U CN2084234 U CN 2084234U
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- CN
- China
- Prior art keywords
- scale
- antenna
- spacing
- 10mhz
- scale spacing
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- 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.)
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Abstract
The utility model belongs to an improvement of intercom special antenna, comprising a plug, a high frequency insulation pad, a base which is matched with the antenna root and a telescopic nickel plating copper pulling rod. The utility model can be arranged on the matched base of the antennal root, with the high frequency insulation pad and the pulling rod surface which is connected with a socket core wire, the utility model is etched with a frequency scale ruler which is provided with a big division per 10MHz. So the interphone can play the best work efficiency between 140MHz-470MHz, one antenna can replace multiple antennas, and the utility model can overcome the defect of selecting antenna according to frequency in the past.
Description
The utility model belongs to the improvement of intercom dedicated antenna.
Antenna is the requisite critical piece of intercom, the quality of its performance, and can the operating efficiency that be directly connected to intercom obtain performance.At present, the extension type whip antenna that intercom is used always, it is in use antenna all to be pulled out, and this antenna with the intercom coupling is targetedly, and every antenna usually can only be at 8-10MH
ZWork in the scope.As change the working frequency range of intercom, supporting with it antenna must be changed again and the optimum Match state could be reached with it.Otherwise this antenna can't be realized optimum Match according to operating frequency.Change antenna, cause waste economically and use upward inconvenient; Antenna and intercom are difficult to reach the operating state of optimum Match, influence the performance of communication efficiency.
The purpose of this utility model is the shortcoming at above-mentioned existence, provides a kind of and need not change antenna, just can make intercom when changing working frequency range, still can and antenna between reach the whip antenna of optimum Match state.
Technical essential of the present utility model is: it is to be made of plug, high-frequency insulation pad, antenna root coupling pedestal and the copper pole that draws of nickel plating that can stretch, it is characterized in that being installed on the antenna root coupling pedestal, and draw the pole surface by what high-frequency insulation pad and socket heart yearn joined, being etched with every 10MHZ is the frequency scale scale of big lattice.Said graduated scale is according to λ/2 and λ/4 antennas, is defined as from antenna base initial to 319mm that is positioned at the pole body and 159.5mm.λ/2 antennas are that the scale spacing of every 10MHZ is provided by 7.5-8.5mm between the 319mm place makes progress by 470-420MHZ; Scale spacing between the 420-410MHZ is provided by 8.9-9.5mm; Scale spacing between the 410-400MHZ is provided by 10-11mm; Between the 370-340MHZ, the scale spacing of every 10MHZ is provided by 11.5-12.5mm; Scale spacing between the 340-330MHZ is provided by 13.5-14.5mm; Scale spacing between the 170-160MHZ is provided by 55-57mm; Scale spacing 61-63mm between the 160-150MHZ provides; Scale spacing between the 150-140MHZ is provided by 70-72mm.λ/4 antennas are that the scale spacing of every 10MHZ is provided by 3.5-4.5mm between the 159.5mm place makes progress by 470-420MHZ; Scale spacing between the 420-410MHZ is provided by 4-5mm; Spacing between the 410-400MHZ is provided by 5-5.5mm; Between the 370-340MHZ, the scale spacing of every 10MHZ is provided by 5.5-6.5mm; Scale spacing between the 340-330MHZ is provided by 6.5-7.5mm; Scale spacing between the 170-160MHZ is provided by 27-29mm; Scale spacing between the 160-150MHZ is provided by 30-32mm; Scale spacing between the 150-140MHZ is provided by 34.5-36.5mm.Can make frequency range tuning between 140-470MHZ with this antenna, the regulating frequency scale can make and reach the optimum Match state between antenna and the intercom.
After the utility model occurred, it all can bring into play optimum working efficiency between 140MHZ-470MHZ, can replace many antennas with an antenna, had overcome the defective of in the past matching antenna by frequency, had brought convenience to the user.Owing to reach the optimum Match state between this antenna energy and the intercom, make its communication distance than original antenna communication apart from increasing more than the 15-25%.Have advantages such as simple in structure, easy to use, easy to utilize.
Accompanying drawing is a structural representation of the present utility model.
Whip antenna draws the frequency scale scale on pole surface can print formation, is divided into 5 little lattice with point in every 10MHZ is the frequency scale scale of big lattice.During use, be to be installed on the intercom antenna socket, by Q
9The antenna that socket 4, coupling pedestal 3, high-frequency insulation pad 2, pole body 1 constitute according to intercom and actual operating frequency, is adjusted scale label, make it actual operating frequency with intercom be identical to get final product, with after antenna compressed reset.From the antenna bottom, be reference dimension to the 319mm place that is positioned at mast body 1, the scale spacing of other frequency is put to increasing progressively with this.
Now provide the λ/2 antenna part operating frequencies and the corresponding antenna length scale table of comparisons.
| Operating frequency | The antenna total length |
| 140MHZ | 1071mm |
| 150MHZ | 1000mm |
| 160MHZ | 938mm |
| 170MHZ | 882mm |
| 330MHZ | 455mm |
| 340MHZ | 441mm |
| 350MHZ | 429mm |
| 360MHZ | 417mm |
| 370MHZ | 405mm |
Claims (3)
1, a kind of can accurately tuning intercom dedicated antenna, constitute by plug, high-frequency insulation pad, antenna root coupling pedestal and the copper pole that draws of telescopic nickel plating, it is characterized in that being installed on the antenna root coupling pedestal, and draw the pole surface by what high-frequency insulation sheet and socket heart yearn joined, being etched with every 10MHZ is the frequency scale scale of big lattice.
2,, it is characterized in that said graduated scale is according to λ/2 and λ/4 antennas, is defined as from antenna base initial to 319mm that is positioned at the pole body and 159.5mm according to the described intercom dedicated antenna of claim 1; λ/2 antennas are that the scale spacing of every 10MHZ is provided by 7.5-8.5mm between the 319mm place makes progress by 470-420MHZ; Scale spacing between the 420-410MHZ is provided by 8.9-9.5mm; Scale spacing between the 410-400MHZ is provided by 10-11mm; Between the 370-340MHZ, the scale spacing of every 10MHZ is provided by 11.5-12.5mm; Scale spacing between the 340-330MHZ is provided by 13.5-14.5mm; Scale spacing between the 170-160MHZ is provided by 55-57mm; Scale spacing 61-63mm between the 160-150MHZ provides; Scale spacing between the 150-140MHZ is provided by 70-72mm; λ/4 antennas are that the scale spacing of every 10MHZ is provided by 3.5-4.5mm between the 159.5mm place makes progress by 470-420MHZ; Scale spacing between the 420-410MHZ is provided by 4-5mm; Spacing between the 410-400MHZ is provided by 5-5.5mm; Between the 370-340MHZ, the scale spacing of every 10MHZ is provided by 5.5-6.5mm; Scale spacing between the 340-330MHZ is provided by 6.5-7.5mm; Scale spacing between the 170-160MHZ is provided by 27-29mm; Scale spacing between the 160-150MHZ is provided by 30-32mm; Scale spacing between the 150-140MHZ is provided by 34.5-36.5mm.
3, according to the described intercom dedicated antenna of claim 1, it is characterized in that antenna draws the frequency scale scale on pole surface can print formation, in being the frequency scale scale of big lattice, every 10MHZ is divided into 5 little lattice with point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90219637 CN2084234U (en) | 1990-11-20 | 1990-11-20 | Special aerial for intercom capable of precision tuning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90219637 CN2084234U (en) | 1990-11-20 | 1990-11-20 | Special aerial for intercom capable of precision tuning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2084234U true CN2084234U (en) | 1991-09-04 |
Family
ID=4898306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90219637 Withdrawn CN2084234U (en) | 1990-11-20 | 1990-11-20 | Special aerial for intercom capable of precision tuning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2084234U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617394A (en) * | 2015-01-15 | 2015-05-13 | 优能通信科技（杭州）有限公司 | Tunable external antenna and implementation method thereof |
-
1990
- 1990-11-20 CN CN 90219637 patent/CN2084234U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617394A (en) * | 2015-01-15 | 2015-05-13 | 优能通信科技（杭州）有限公司 | Tunable external antenna and implementation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |