CN203313177U - Ultrashort-wave dual-band handheld air station - Google Patents

Ultrashort-wave dual-band handheld air station Download PDF

Info

Publication number
CN203313177U
CN203313177U CN2013203992033U CN201320399203U CN203313177U CN 203313177 U CN203313177 U CN 203313177U CN 2013203992033 U CN2013203992033 U CN 2013203992033U CN 201320399203 U CN201320399203 U CN 201320399203U CN 203313177 U CN203313177 U CN 203313177U
Authority
CN
China
Prior art keywords
circuit
output
unit
mixting
amplifier circuit
Prior art date
Application number
CN2013203992033U
Other languages
Chinese (zh)
Inventor
张小舟
赵亚东
Original Assignee
成都天奥信息科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 成都天奥信息科技有限公司 filed Critical 成都天奥信息科技有限公司
Priority to CN2013203992033U priority Critical patent/CN203313177U/en
Application granted granted Critical
Publication of CN203313177U publication Critical patent/CN203313177U/en

Links

Abstract

The utility model discloses an ultrashort-wave dual-band handheld air station including a 7.2V lithium battery, an antenna, a radio frequency module and a terminal module. The radio frequency module comprises a transmitting unit, a receiving unit, a frequency synthesis unit and a power supply unit; the terminal module includes an audio unit and a display control unit; an output of the 7.2V lithium battery is connected with the power supply unit; the power unit is respectively connected with the transmitting unit, the receiving unit and the frequency synthesis unit; the transmitting unit is connected respectively with the antenna, the receiving unit and the frequency synthesis unit; the receiving unit is also connected with the frequency synthesis unit and the audio unit; and an output of a display and control unit is respectively connected with the audio unit, the transmitting unit and the receiving unit. The working frequency band of the ultrashort-wave dual-band handheld air station includes two frequency bands of 108MHz to 173.975MHz and 225 to 399.975MHz; and the ultrashort-wave dual-band handheld air station can work in two frequency bands of the VHF and the UHF, so that the working frequency band of the handheld station is widened and the application scope of the handheld station is increased.

Description

Ultrashort wave two-band hand-hold type ground to air radio set
Technical field
The utility model relates to a kind of ultrashort wave two-band hand-hold type ground to air radio set.
Background technology
Ultrashort wave two-band hand-hold type aeronautical station (hereinafter to be referred as: hand-held station) ultrashort wave aeronautical station, the speech (comprising encrypted word) of take communication is as main, in the air defense control automated system, also be furnished with empty transfer of data radio station, for automatically and fast guiding many batches of targets of many batches of aircraft interceptions, meet civil aviaton's Speech Communication system, be applicable to drop from the air, drop, the field task such as training and airport emergency guarantee etc. are to sky guiding commander task.
Hand-held station is mainly used in the guiding to sky of following occasion and commands:
(1) command and guide of airborne, the airdrop mission of transporter;
The command and guide of (2) the motor-driven landing of helicopter field, training, field task;
(3) the emergent command and guide in airport.
At present ultrashort wave frequency band hand-hold type ground to air radio set adopts imported product substantially, mainly contains the hand-held stations such as IC-A24, IC-A3E of Japanese ICOM company etc.But these products more or less have the following disadvantages:
1, working frequency range is imperfect: the working frequency range of existing imported product is the 118MHz ~ VHF of 136.975MHz civil aviaton voice grade substantially, need to be two frequency ranges of 108MHz ~ 173.975MHz and 225 ~ 399.975MHz by band spreading;
2, working system is imperfect: imported product mostly is AM speech mode at present, lacks FM speech mode, and needing increases the FM mode, improves conventional speech working method;
3, waveguide separation is imperfect: imported product only has the channel spacing of 25kHz, lacks the 8.33kHz channel spacing;
4, after-sales service security system: need to use the homemade goods import substitutes, set up and meet the security system that China requires.
Based on above-mentioned background, the emergent two-band hand-hold type ground to air radio set to the sky guiding in the applicable field that the development wide-band of basing on our country, FMAM have both and station, fill up the blank of China in this field.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of and can be operated in 108MHz ~ 173.975MHz and two frequency ranges of 225 ~ 399.975MHz, widened the working frequency range of hand-held station, have AM, two kinds of speech working methods of FM, structural design advantages of simple, operation are controlled easy, little, the lightweight ultrashort wave two-band of volume hand-hold type ground to air radio set.
The purpose of this utility model is achieved through the following technical solutions: ultrashort wave two-band hand-hold type ground to air radio set, comprise 7.2V lithium battery, antenna, radio-frequency module and terminal module, described radio-frequency module comprises transmitter unit, receiving element, frequently combines unit and power subsystem, and described terminal module comprises audio unit and aobvious control unit;
Audio unit comprises microphone, audio amplifier circuit a, earphone horn and audio amplifier circuit b; Aobvious control unit comprises keyboard, central processor CPU and Organic Light Emitting Diode OLED; Transmitter unit comprises directional coupler, transmit-receive switch, U/V switch A, U section filter, V section filter, U/V switch B, final stage amplifying circuit, preamplifying circuit, gain control circuit and automatic electric-level control and modulation circuit; Frequently combine circuit and comprise temperature compensating crystal oscillator, a local oscillator and two local oscillators; Receiving element comprises high pass filter, high-frequency amplifier circuit, the first mixting circuit, incoming level testing circuit, the first filtering and intermediate frequency amplifier circuit, the second mixting circuit, the second filtering and intermediate frequency amplifier circuit, the 3rd mixting circuit, the 3rd filtering and intermediate frequency amplifier circuit and demodulator circuit;
The output of keyboard is connected with CPU, and the output of CPU with OLED, earphone horn and automatic electric-level, controls respectively and modulation circuit is connected, and the output of microphone connects automatic electric-level by audio amplifier circuit a and controls and modulation circuit;
Directional coupler is connected with transmit-receive switch with antenna respectively, transmit-receive switch connects respectively U section filter and V section filter by U/V switch A, U section filter is connected with U/V switch B respectively with V section filter, the output of directional coupler also with automatic electric-level, controls and modulation circuit is connected, automatic electric-level is controlled and the output of modulation circuit is connected with gain control circuit, and the output of gain control circuit is connected U/V switch B successively with the final stage amplifying circuit by preamplifying circuit;
The output of U/V switch B is connected with the high pass filter of receiving element by low pass filter, the output of high pass filter is connected with high-frequency amplifier circuit, the output of high-frequency amplifier circuit is connected with the incoming level testing circuit with the first mixting circuit respectively, the output of the first mixting circuit is successively by the first filtering and intermediate frequency amplifier circuit, the second mixting circuit is connected the 3rd mixting circuit with the second filtering and intermediate frequency amplifier circuit, the output of the 3rd mixting circuit is successively by the 3rd filtering and intermediate frequency amplifier circuit, demodulator circuit is connected with the audio amplifier circuit b of audio unit, the output of audio amplifier circuit b is connected with earphone horn,
The output of temperature compensating crystal oscillator is connected with two local oscillators with a local oscillator respectively, and the output of a local oscillator is connected with the first mixting circuit of receiving element and the gain control circuit of transmitter unit respectively, and the output of two local oscillators is connected with the second mixting circuit of receiving element.
Described receiving element also comprises a crystal oscillator, and the output of crystal oscillator is connected with the 3rd mixting circuit.
Described central processor CPU also is connected with radio-frequency module.
Described power subsystem comprises the DC/DC change-over circuit, the input of DC/DC change-over circuit is connected with the 7.2V lithium battery, the output of DC/DC change-over circuit is respectively with transmitting element, receiving element with frequently combine unit and be connected, its output comprise the 28V Voltage-output ,-5V Voltage-output and 3.3V Voltage-output.
The beneficial effects of the utility model are:
1, working frequency range comprises 108MHz ~ 173.975MHz and two frequency ranges of 225 ~ 399.975MHz, can be operated in VHF, two frequency ranges of UHF, has widened the working frequency range of hand-held station, has increased the scope of application of hand-held station;
2, have AM, two kinds of speech working methods of FM, structural design advantages of simple, operation are controlled easy, and volume is little, lightweight, and installation adaptability is good.
The accompanying drawing explanation
Fig. 1 is system configuration schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, further illustrate the technical solution of the utility model, but the content that the utility model is protected is not limited to the following stated.
As shown in Figure 1, ultrashort wave two-band hand-hold type ground to air radio set, comprise 7.2V lithium battery, antenna, radio-frequency module and terminal module, described radio-frequency module comprises transmitter unit, receiving element, frequently combines unit and power subsystem, and described terminal module comprises audio unit and aobvious control unit;
Audio unit comprises microphone, audio amplifier circuit a, earphone horn and audio amplifier circuit b; Aobvious control unit comprises keyboard, central processor CPU and Organic Light Emitting Diode OLED; Transmitter unit comprises directional coupler, transmit-receive switch, U/V switch A, U section filter, V section filter, U/V switch B, final stage amplifying circuit, preamplifying circuit, gain control circuit and automatic electric-level control and modulation circuit; Frequently combine circuit and comprise temperature compensating crystal oscillator, a local oscillator and two local oscillators; Receiving element comprises high pass filter, high-frequency amplifier circuit, the first mixting circuit, incoming level testing circuit, the first filtering and intermediate frequency amplifier circuit, the second mixting circuit, the second filtering and intermediate frequency amplifier circuit, the 3rd mixting circuit, the 3rd filtering and intermediate frequency amplifier circuit and demodulator circuit;
The output of keyboard is connected with CPU, and the output of CPU with OLED, earphone horn and automatic electric-level, controls respectively and modulation circuit is connected, and the output of microphone connects automatic electric-level by audio amplifier circuit a and controls and modulation circuit;
Directional coupler is connected with transmit-receive switch with antenna respectively, transmit-receive switch connects respectively U section filter and V section filter by U/V switch A, U section filter is connected with U/V switch B respectively with V section filter, the output of directional coupler also with automatic electric-level, controls and modulation circuit is connected, automatic electric-level is controlled and the output of modulation circuit is connected with gain control circuit, and the output of gain control circuit is connected U/V switch B successively with the final stage amplifying circuit by preamplifying circuit;
The output of U/V switch B is connected with the high pass filter of receiving element by low pass filter, the output of high pass filter is connected with high-frequency amplifier circuit, the output of high-frequency amplifier circuit is connected with the incoming level testing circuit with the first mixting circuit respectively, the output of the first mixting circuit is successively by the first filtering and intermediate frequency amplifier circuit, the second mixting circuit is connected the 3rd mixting circuit with the second filtering and intermediate frequency amplifier circuit, the output of the 3rd mixting circuit is successively by the 3rd filtering and intermediate frequency amplifier circuit, demodulator circuit is connected with the audio amplifier circuit b of audio unit, the output of audio amplifier circuit b is connected with earphone horn,
The output of temperature compensating crystal oscillator is connected with two local oscillators with a local oscillator respectively, and the output of a local oscillator is connected with the first mixting circuit of receiving element and the gain control circuit of transmitter unit respectively, and the output of two local oscillators is connected with the second mixting circuit of receiving element.
Described receiving element also comprises a crystal oscillator, and the output of crystal oscillator is connected with the 3rd mixting circuit.
Described central processor CPU also is connected with radio-frequency module.
Described power subsystem comprises the DC/DC change-over circuit, the input of DC/DC change-over circuit is connected with the 7.2V lithium battery, the output of DC/DC change-over circuit is respectively with transmitting element, receiving element with frequently combine unit and be connected, its output comprise the 28V Voltage-output ,-5V Voltage-output and 3.3V Voltage-output.

Claims (4)

1. ultrashort wave two-band hand-hold type ground to air radio set, comprise 7.2V lithium battery, antenna, radio-frequency module and terminal module, it is characterized in that: described radio-frequency module comprises transmitter unit, receiving element, frequently combines unit and power subsystem, and described terminal module comprises audio unit and aobvious control unit;
Audio unit comprises microphone, audio amplifier circuit a, earphone horn and audio amplifier circuit b; Aobvious control unit comprises keyboard, central processor CPU and Organic Light Emitting Diode OLED; Transmitter unit comprises directional coupler, transmit-receive switch, U/V switch A, U section filter, V section filter, U/V switch B, final stage amplifying circuit, preamplifying circuit, gain control circuit and automatic electric-level control and modulation circuit; Frequently combine circuit and comprise temperature compensating crystal oscillator, a local oscillator and two local oscillators; Receiving element comprises high pass filter, high-frequency amplifier circuit, the first mixting circuit, incoming level testing circuit, the first filtering and intermediate frequency amplifier circuit, the second mixting circuit, the second filtering and intermediate frequency amplifier circuit, the 3rd mixting circuit, the 3rd filtering and intermediate frequency amplifier circuit and demodulator circuit;
The output of keyboard is connected with CPU, and the output of CPU with OLED, earphone horn and automatic electric-level, controls respectively and modulation circuit is connected, and the output of microphone connects automatic electric-level by audio amplifier circuit a and controls and modulation circuit;
Directional coupler is connected with transmit-receive switch with antenna respectively, transmit-receive switch connects respectively U section filter and V section filter by U/V switch A, U section filter is connected with U/V switch B respectively with V section filter, the output of directional coupler also with automatic electric-level, controls and modulation circuit is connected, automatic electric-level is controlled and the output of modulation circuit is connected with gain control circuit, and the output of gain control circuit is connected U/V switch B successively with the final stage amplifying circuit by preamplifying circuit;
The output of U/V switch B is connected with the high pass filter of receiving element by low pass filter, the output of high pass filter is connected with high-frequency amplifier circuit, the output of high-frequency amplifier circuit is connected with the incoming level testing circuit with the first mixting circuit respectively, the output of the first mixting circuit is successively by the first filtering and intermediate frequency amplifier circuit, the second mixting circuit is connected the 3rd mixting circuit with the second filtering and intermediate frequency amplifier circuit, the output of the 3rd mixting circuit is successively by the 3rd filtering and intermediate frequency amplifier circuit, demodulator circuit is connected with the audio amplifier circuit b of audio unit, the output of audio amplifier circuit b is connected with earphone horn,
The output of temperature compensating crystal oscillator is connected with two local oscillators with a local oscillator respectively, and the output of a local oscillator is connected with the first mixting circuit of receiving element and the gain control circuit of transmitter unit respectively, and the output of two local oscillators is connected with the second mixting circuit of receiving element.
2. ultrashort wave two-band hand-hold type ground to air radio set according to claim 1, it is characterized in that: described receiving element also comprises a crystal oscillator, the output of crystal oscillator is connected with the 3rd mixting circuit.
3. ultrashort wave two-band hand-hold type ground to air radio set according to claim 1, it is characterized in that: described central processor CPU also is connected with radio-frequency module.
4. ultrashort wave two-band hand-hold type ground to air radio set according to claim 1, it is characterized in that: described power subsystem comprises the DC/DC change-over circuit, the input of DC/DC change-over circuit is connected with the 7.2V lithium battery, the output of DC/DC change-over circuit is respectively with transmitting element, receiving element with frequently combine unit and be connected, its output comprise the 28V Voltage-output ,-5V Voltage-output and 3.3V Voltage-output.
CN2013203992033U 2013-07-05 2013-07-05 Ultrashort-wave dual-band handheld air station CN203313177U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203992033U CN203313177U (en) 2013-07-05 2013-07-05 Ultrashort-wave dual-band handheld air station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203992033U CN203313177U (en) 2013-07-05 2013-07-05 Ultrashort-wave dual-band handheld air station

Publications (1)

Publication Number Publication Date
CN203313177U true CN203313177U (en) 2013-11-27

Family

ID=49619346

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013203992033U CN203313177U (en) 2013-07-05 2013-07-05 Ultrashort-wave dual-band handheld air station

Country Status (1)

Country Link
CN (1) CN203313177U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103684515A (en) * 2013-11-30 2014-03-26 成都天奥信息科技有限公司 Handheld-type dual-frequency-band ultrashort wave air radio station
CN103825853A (en) * 2013-12-05 2014-05-28 成都天奥信息科技有限公司 Digital audio FM modulation circuit of handheld ultrashort wave air radio
CN108882218A (en) * 2018-06-04 2018-11-23 张思哲 power emergency communication system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103684515A (en) * 2013-11-30 2014-03-26 成都天奥信息科技有限公司 Handheld-type dual-frequency-band ultrashort wave air radio station
CN103825853A (en) * 2013-12-05 2014-05-28 成都天奥信息科技有限公司 Digital audio FM modulation circuit of handheld ultrashort wave air radio
CN103825853B (en) * 2013-12-05 2017-04-12 成都天奥信息科技有限公司 Digital audio FM modulation circuit of handheld ultrashort wave air radio
CN108882218A (en) * 2018-06-04 2018-11-23 张思哲 power emergency communication system

Similar Documents

Publication Publication Date Title
CN103701488B (en) There is the S mode answering machine of the Automatic dependent surveillance broadcast ability of 1090 megahertz expansion texts
US20150188225A1 (en) Antenna assembly and wireless communication device using the same
CN105075143B (en) A kind of antenna switching system and method
CN101296019B (en) Relay repeater system for unmanned helicopter
CN101950846B (en) Active integrated antenna system
US20090264086A1 (en) Wireless communication device
RU2012124066A (en) Antenna device and antenna selection method
CN105305067A (en) Antenna system and mobile terminal
CN102404879B (en) A kind of communication terminal
CN204013525U (en) A kind of radio-frequency unit
US20120003944A1 (en) Radio transceiver for mobile communication terminal
CN102723982B (en) Full-coverage multi-channel multi-frequency band measuring and control system of deep space electric propulsion asteroid spacecraft
EP2523355B1 (en) Device and equipment for receiving and transmitting signals with four-frequency in global system for mobile communication
US8280307B2 (en) Wireless access module with integrated antenna
CN102856629A (en) Three-in-one antenna device of cell phone
CN201388196Y (en) Mobile terminal realizing the multiband matching of antennas
CN103401577A (en) Antenna switching system of mobile terminal
WO2006086259A3 (en) Aircraft communications system and related method for communicating between portable wireless communications device and ground
CN103490808B (en) Spaceborne S frequency range trunk subscriber terminal system and application process based on spread spectrum system
CN202424728U (en) Multi-antenna measuring system based on network analysis instrument and radio-frequency switch
CN102412913B (en) A kind of antenna debugging method testing system and communication terminal
WO2011146092A3 (en) System and apparatus for locomotive radio communications
CN102717902B (en) Phased multi-rate self-adaptive measurement and control system of mars exploration deep space spacecraft
EP2378731A3 (en) Cognative radio communication method
WO2007089262A3 (en) Rf signal feed through method and apparatus for shielded aircraft fuselage

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant