CN203734682U - Field-type FM synchronization network workstation - Google Patents
Field-type FM synchronization network workstation Download PDFInfo
- Publication number
- CN203734682U CN203734682U CN201420073367.1U CN201420073367U CN203734682U CN 203734682 U CN203734682 U CN 203734682U CN 201420073367 U CN201420073367 U CN 201420073367U CN 203734682 U CN203734682 U CN 203734682U
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- Prior art keywords
- modulator
- amplifier
- satellite
- power
- synchronization network
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- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 description 5
- 230000001427 coherent effect Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model discloses a field-type FM synchronization network workstation, which mainly comprises a power supply device, a signal source device, and a transmission device. The transmission device mainly comprises an FM modulator, a pre-stage amplifier, a rear-stage amplifier, a GPS receiving antenna and a GPS clock source; the FM modulator is connected with the GPS clock source; a satellite receiving antenna and a satellite receiver receive audio source signals same as those of an adjacent large-power FM transmitting base station from the satellite; the audio source signals are modulated via the FM modulator; and the modulated signals are amplified via the pre-stage amplifier and the rear-stage amplifier to be 300W power to be transmitted to the air via the transmission antenna to be received by a user. According to the field-type FM synchronization network workstation, transmission efficiency of the FM modulator is locked on the GPS clock source and strictly maintains to be the same as that of the adjacent large-power FM transmitting base station, and thus FM synchronization broadcast is realized.
Description
Technical field
The utility model relates to a kind of outdoor type FM Synchronization Network work station, reduces the coherent area movement of the undesired reception of energy between adjacent high-power cell site, and it belongs to broadcast communication technical field.
Background technology
It is strong that FM broadcasting has antijamming capability, the feature that signal fidelity is high, and therefore FM broadcasting more and more becomes the major way of commercial broadcast.Because FM broadcasting is operated on ultrashort wave frequency band, i.e. 88～108MHz frequency range, terrestrial broadcast distance is restricted, and therefore current FM broadcasting pattern all adopts the broadcast mode of region-by-region subrane, but due to the problem of co-channel interference of neighbouring area, the available fm band in each department is very limited.Along with development and the growing demand of listening to of mass audience of broadcasting industry, set up synchronous frequency-modulating broadcast network, saving frequency resource, improve frequency resource in limited fm band utilance, be convenient to broadcasting listener and listen to the investment of listening to and saves construction FM broadcast network of listening to colony of identical broadcast program in particularly flowing in different regions, become urgent problem.
Modulating FM Synchronization Network has had more application in China at present, has substantially realized especially the covering of modulating FM broadcast or modulating FM synchronized broadcasting at highway along the line, and the power of still launching website is larger, distant.Coherent area movement in FM broadcast coverage areas is larger, and it is larger that user can not normally receive the region of broadcast.Modulating FM synchronized broadcasting further develops the coherent area movement that must minimizing can normally receive, and will between two high-power cell sites, set up the work station of suitable power.
Utility model content
For above-mentioned prior art, the purpose of this utility model is to provide a kind of outdoor type FM Synchronization Network work station, and the coherent area movement that minimizing can not normally receive will be set up the utility model between two high-power cell sites.
Above-mentioned technical problem, the utility model adopts following technical scheme:
A kind of outdoor type FM Synchronization Network work station, it is characterized in that, mainly comprise electric supply installation, signal source device, emitter, described electric supply installation is mainly interconnected to constitute by solar panel and stabilized voltage power supply, signal source device is connected and composed by satellite earth antenna and satellite receiver, and emitter comprises FM modulator, pre-amplifier, final amplifier, transmitting antenna, master control borad, LCD display, wireless router, GPS reception antenna and gps clock source; FM modulator is connected with gps clock source, master control borad is connected with FM modulator, pre-amplifier, final amplifier and LCD display respectively, receive the audio source signal identical with adjacent high-power FM transmitting base station by satellite earth antenna, satellite receiver from satellite, this audio source signal is through FM modulators modulate, after modulation, be amplified to 300W power through pre-amplifier, final amplifier extremely aerial by transmission antennas transmit, receive for user.
In the utility model, FM modulator tranmitting frequency be locked on gps clock source, and consistent with the tranmitting frequency of adjacent high-power FM transmitting base station.
In the utility model, also comprise a wireless router, for remote monitoring.
Compared with prior art, the utlity model has following beneficial effect:
One, the tranmitting frequency of the FM modulator in the utility model is locked on gps clock source, strictly be consistent with the tranmitting frequency of adjacent high-power FM transmitting base station, realize consistent with the audio signal source of high-power FM transmitting base station and tranmitting frequency, can realize FM synchronized broadcasting;
Two, the utility model only need be installed on brief installing rack, and its occupation of land is little, and small investment is simple and convenient.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model;
Reference numeral is: 1 is that satellite earth antenna, 2 is that GPS reception antenna, 3 is that stabilized voltage power supply, 4 is that gps clock source, 5 is that satellite receiver, 6 is that pre-amplifier, 7 is final amplifier.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model will be further described.
A kind of outdoor type FM Synchronization Network work station, comprise electric supply installation, signal source device, emitter, described electric supply installation is mainly interconnected to constitute by solar panel and stabilized voltage power supply, signal source device is connected and composed by satellite earth antenna and satellite receiver, emitter is by FM modulator, pre-amplifier, final amplifier, master control borad, LCD display, wireless router, GPS reception antenna and gps clock source, by satellite earth antenna, satellite receiver receives the audio source signal identical with adjacent high-power FM transmitting base station from satellite, this audio source signal is through FM modulators modulate, after modulation through pre-amplifier, final amplifier is amplified to 300W power and is gone out by transmission antennas transmit, FM modulator is connected with gps clock source, and master control borad is connected with FM modulator, pre-amplifier, final amplifier and LCD display respectively.
Master control borad is control centre of the present utility model, and various running parameters are processed, analyze, judged, makes corresponding instruction, and relevant running parameter and operating state are presented on LCD screen; And relevant running parameter and operating state report remote monitoring platform by wireless router, realize the remote monitoring of work station.The tranmitting frequency of FM modulator is locked on gps clock source, is strictly consistent with the tranmitting frequency of adjacent high-power FM transmitting base station.So just realize consistent with the audio signal source of high-power FM transmitting base station and tranmitting frequency, also just realized FM synchronized broadcasting.
The utility model is by solar powered, and the energy that solar panel obtains from sunlight, through solar cell output electric energy, then through conversion and voltage stabilizing output, supplies with whole system.
Claims (3)
1. an outdoor type FM Synchronization Network work station, it is characterized in that, mainly comprise electric supply installation, signal source device, emitter, described electric supply installation is mainly interconnected to constitute by solar panel and stabilized voltage power supply, signal source device is connected and composed by satellite earth antenna and satellite receiver, and emitter comprises FM modulator, pre-amplifier, final amplifier, transmitting antenna, master control borad, LCD display, wireless router, GPS reception antenna and gps clock source; FM modulator is connected with gps clock source, master control borad is connected with FM modulator, pre-amplifier, final amplifier and LCD display respectively, receive the audio source signal identical with adjacent high-power FM transmitting base station by satellite earth antenna, satellite receiver from satellite, this audio source signal is through FM modulators modulate, after modulation, be amplified to 300W power through pre-amplifier, final amplifier extremely aerial by transmission antennas transmit, receive for user.
2. outdoor type FM Synchronization Network work station according to claim 1, is characterized in that, FM modulator tranmitting frequency be locked on gps clock source.
3. outdoor type FM Synchronization Network work station according to claim 1, is characterized in that, also comprises a wireless router.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073367.1U CN203734682U (en) | 2014-02-20 | 2014-02-20 | Field-type FM synchronization network workstation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073367.1U CN203734682U (en) | 2014-02-20 | 2014-02-20 | Field-type FM synchronization network workstation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203734682U true CN203734682U (en) | 2014-07-23 |
Family
ID=51204722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420073367.1U Expired - Fee Related CN203734682U (en) | 2014-02-20 | 2014-02-20 | Field-type FM synchronization network workstation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203734682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112436884A (en) * | 2020-12-07 | 2021-03-02 | 上海波星通实业有限公司 | Offshore satellite broadband internet access equipment and control method and system thereof |
-
2014
- 2014-02-20 CN CN201420073367.1U patent/CN203734682U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112436884A (en) * | 2020-12-07 | 2021-03-02 | 上海波星通实业有限公司 | Offshore satellite broadband internet access equipment and control method and system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |