How to use the radio broadcast system to make money?
Have you see the movie "Pump Up the Volume"?I suggest you have a look, the film tells the story of a young set up a private radio story.
After reading you may be inspired by, how to use the radio to make a profit?
In simple terms, you must have a wireless radio and software support, plus a computer, can set the frequency, to achieve 24 hours of uninterrupted playback, can unattended.
The contents of the advertisements of your own choice, for some unknown singer playing them write their own songs, as long as your radio features, natural have advertisers seek to,
As far as I know, one advertiser in a private radio advertising cost is 150 euro per week.
Our company offers a full range of radio equipment, you can choose their own, selected for broadcast radius, such as 50 kilometers, 100 kilometers.
www.worldrams.com
2014年3月31日星期一
2014年3月17日星期一
2U 150 watt Broadband RF power amplifier
Low RF input power, gain up to 55dBm.
Soft start to rise slowly from the RF output 0 to the set value state.
Adjustable power output from 0 to 150 W power with automatic gain control, to maintain a fixed level of any output.
Rugged all aluminum enclosure provides a better thermal environment.
Rationalization of the circuit layout and parts easy to replace.
Full protection of the reflected power and overheating fault.
Integrated LCD display's all system parameters
Frequency :1.8-30MHz ,30-70MHz ,70-90MHZ ,87-108MHz, 135 ~ 175MHz, other frequencies can be customized.
RF input power: -10 to 0dBm
RF output power: 0 ~ 150 watts ± 0.5dB
Harmonic suppression: <-65dBc
RF output impedance: 50Ω
RF Input Connector: N type female
RF Output Connector: N type female
Main Power Requirements: 220V or 110V
Operating temperature range: -20 to 45 ℃
Work: continuous
Size: 483 x 88x 320 mm (excluding handle part), standard rack 19 inches 2U.
Weight: 8 kg
2U 500W FM Broadcast Transmitter & EXCITER
High-end digital front panel, direct programming step 100KHz.
Soft start rise slowly from the RF output 0 to the set value.
Adjustable power output from 0 to 600 W with automatic power control to maintain a fixed level of any output.
The SCA can be used BNC input connectors, input the standard RDS or SCA additional signals.
Provides a conservative high reliability rating components.
Easy to rationalize the layout of the circuit and parts replacement.
Freescale's latest LDMOS high reliability tube MRFE6VP5600HR.
Built-in stereo encoder.
Full protection of the reflected power and overheating problems.
Integrated LCD monitor's all system parameters.
Frequency :87-108MHz, can be customized according to user 70 ~ 110MHz.
Frequency Step value: 100KHz ,can be customized 10KHz or 50KHz.
Modulation mode : FM, the peak deviation ± 75KHz
Frequency stability: <± 100Hz
Frequency stabilization mode: PLL Frequency Synthesizer PLL
RF output power: 0 ~ 600 watts ± 0.5dB
Harmonic: <-65dBc
RF output impedance: 50Ω
RF Output Connector: N Type Female
Audio Input Connector: BNC, RCA
SCA and RDS input connectors: BNC female
Pre-emphasis: 50us, 75us (user selectable)
S / N ratio of mono:> 70 dB (20 to 20KHz)
S / N ratio stereo:> 65 dB (20 to 15KHz)
Stereo Separation:-50dB
Audio Frequency Response: 80 ~ 15000Hz
Audio Distortion: <0.5%
Modulation: 15%
Input Level:-15dBV
Main Power Requirements: 220V or 110V
Operating temperature range: -20 to 45 ℃
Work: continuous work
Size: 483 x 88x 320 mm, 19-inch standard rack wU.
Reference range: 20Km-30Km
Standard accessories: Power cord 1, Instruction Manual 1
Weight: 11 kg
Frequency :87-108MHz, can be customized according to user 70 ~ 110MHz.
Frequency Step value: 100KHz ,can be customized 10KHz or 50KHz.
Modulation mode : FM, the peak deviation ± 75KHz
Frequency stability: <± 100Hz
Frequency stabilization mode: PLL Frequency Synthesizer PLL
RF output power: 0 ~ 600 watts ± 0.5dB
Harmonic: <-65dBc
RF output impedance: 50Ω
RF Output Connector: N Type Female
Audio Input Connector: BNC, RCA
SCA and RDS input connectors: BNC female
Pre-emphasis: 50us, 75us (user selectable)
S / N ratio of mono:> 70 dB (20 to 20KHz)
S / N ratio stereo:> 65 dB (20 to 15KHz)
Stereo Separation:-50dB
Audio Frequency Response: 80 ~ 15000Hz
Audio Distortion: <0.5%
Modulation: 15%
Input Level:-15dBV
Main Power Requirements: 220V or 110V
Operating temperature range: -20 to 45 ℃
Work: continuous work
Size: 483 x 88x 320 mm, 19-inch standard rack wU.
Reference range: 20Km-30Km
Standard accessories: Power cord 1, Instruction Manual 1
Weight: 11 kg
2U 1000W FM Broadcast Transmitter & EXCITER
FMT-1000H is a high-reliability solid-state Broadband FM Broadcast Transmitter & EXCITER. The device operates in a standard FM broadcast band frequency 87.5-108MHz, 100KHz frequency step, RF output power continuously adjustable from 0 to 999W, power stepper is 1W. This device can use our free software implementation of the automatic broadcast control unattended automatic broadcast control plan. the device adopt Freescale die pipe technology, completely beyond the market compared with all the same level of product.
User-friendly digital front panel ,coding switch direct control .
Integrated LCD screen shows: frequency of the transmitter, stereo and mono, volume, power amplifier tube temperature, the audio signal UV table, forward power, reflected power.
Jumbo all-aluminum chassis, tough and excellent heat dissipation.
Accurate PLL frequency generating system , ensure no drift frequency in 10 years, built-in stereo encoder.
Excellent balance of power AGC control system, the power output is adjustable from 0 to 999 watts power with automatic gain control, the output power to maintain the set range without drift.
signal input not only supports XLE to input audio , but also use the BNC connector AUX input signal and the RDS signal SCA.
the reasonable layout and easy to replace and parts.
RF amplifier section uses Freescale LDMOS transistor MRFE6VP61K25H. It has a very high standing wave ratio 65:1, and it has a gain of 26db, and efficiency up to 80% . Freescale's official announcement of the theoretical life is 2000.
set the transmitter PC-LINK to ON, use our free automatic broadcast control software, enabling automaticly broadcast program .
Frequency :87.5-108MHz, 70 ~ 110MHz.can be customized according to the user
Frequency Step value: 100KHz ,5KHz.can be customized according to user
Modulation: FM, peak deviation ± 75KHz
Frequency stability: <± 100Hz
Frequency stabilization mode: PLL PLL frequency synthesizer
RF output power: 0 ~ 999 watts ± 0.5dB
Harmonic suppression: <-65dBc
RF output impedance: 50Ω
RF output connector: L16 or L29
Audio Input Connector: XLR Female
SCA and RDS input connectors: BNC female
Pre-emphasis: 50us, 75us (user selectable)
S / N ratio of mono:> 70 dB (20 to 20KHz)
S / N ratio Stereo:> 65 db (20 to 15KHz)
Stereo separation:-50dB
Audio Frequency Response: 80 ~ 15000Hz
Audio distortion: <0.5%
Modulation: 15%
Input Level:-15dBV
Supply voltage range: 110V ~ 260V
Operating temperature range: -20 to 45 ℃
Working mode: continuous work
Dimensions: 483 x 88x 320 mm (excluding handle part), standard rack 19 inches 2U.
Reference range: 25Km-35Km
Standard accessories:a host, a power line 1, Manual 1.
Weight: 11 Kg
Frequency :87.5-108MHz, 70 ~ 110MHz.can be customized according to the user
Frequency Step value: 100KHz ,5KHz.can be customized according to user
Modulation: FM, peak deviation ± 75KHz
Frequency stability: <± 100Hz
Frequency stabilization mode: PLL PLL frequency synthesizer
RF output power: 0 ~ 999 watts ± 0.5dB
Harmonic suppression: <-65dBc
RF output impedance: 50Ω
RF output connector: L16 or L29
Audio Input Connector: XLR Female
SCA and RDS input connectors: BNC female
Pre-emphasis: 50us, 75us (user selectable)
S / N ratio of mono:> 70 dB (20 to 20KHz)
S / N ratio Stereo:> 65 db (20 to 15KHz)
Stereo separation:-50dB
Audio Frequency Response: 80 ~ 15000Hz
Audio distortion: <0.5%
Modulation: 15%
Input Level:-15dBV
Supply voltage range: 110V ~ 260V
Operating temperature range: -20 to 45 ℃
Working mode: continuous work
Dimensions: 483 x 88x 320 mm (excluding handle part), standard rack 19 inches 2U.
Reference range: 25Km-35Km
Standard accessories:a host, a power line 1, Manual 1.
Weight: 11 Kg
1U 30W FM Broadcast Transmitter & EXCITER
User-friendly front panel digital ,coding switch directly control.
Integrated LCD screen can show all system parameters : frequency of the transmitter, stereo and mono, volume, power amplifier tube temperature, the audio signal UV table, forward power, reflected power.
1U standard 19-inch all-aluminum rugged chassis, and has excellent heat dissipation.
Accurate PLL frequency generating system to ensure frequency will not drift in 10 years, it has a built-in stereo encoder.
Excellent balance of power AGC control system, the power output is adjustable from 0-30 watts power with automatic gain control, the output power to maintain the set range without drift.
signal input can support RCA , also can input SCA signal and RDS signal by using the BNC's connector AUX .
RF amplifier uses Freescale MOS transistors MRF1535N partly.
it Adds a function of automatically setting antenna frequency , so users do not need to debug the transmitter antenna.
set the transmitter's PC-LINK to ON, use our free automatic Broadcast Control software, then it can automaticly broadcast and control program.
Frequency :87.5-108MHz, 70 ~ 110MHz.can be customized according to the user
Frequency Step value: 100KHz, 5KHz.can be customized according to user
Modulation: FM, peak deviation ± 75KHz
Frequency stability: <± 100Hz
Frequency stabilization mode: PLL PLL frequency synthesizer
RF output power: 0 ~ 30 watts ± 0.5dB
Harmonic suppression: <-65dBc
RF output impedance: 50Ω
RF output connector: L16 (N-type female)
Audio Input Connector: XLR Female
SCA and RDS input connectors: BNC female
Pre-emphasis: 50us, 75us (user selectable)
S / N ratio of mono:> 70 dB (20 to 20KHz)
S / N ratio Stereo:> 65 db (20 to 15KHz)
Stereo separation:-50dB
Audio Frequency Response: 80 ~ 15000Hz
Audio distortion: <0.5%
Modulation: 15%
Input Level:-15dBV
Supply voltage range: 90V ~ 260V
Operating temperature range: -20 to 45 ℃
Working mode: continuous work
Dimensions: 483 x 44x 200 mm (excluding handle part), standard rack 19 inches 1U.
Reference range: 5Km-8Km
Standard accessories: a host, a power line 1, Manual 1.
Weight: 3.5 Kg
RDS intelligent addressable FM system
The FMT-D Series is a professional RDS FM radio intelligent addressable devices. It completely solved the instability problems of the traditional SCA, the high reliability of its unique advantage of highly integrated, so every village, every village rang, campus radio, public broadcasting must wireless addressable broadcast equipment.
The combination of three technologies, microcomputer phase-locked loop + RDS addressing coding + PC smart throughout the day automatically broadcast control software.
128-way independent of the different sub-control can be achieved the all unified control and eight regional control as well as a separate partition control.
Built-in 10 groups stored addressing scheme, each group can be preset good 128 partition default, and then by the panel to quickly choose which group, so that the stand-alone operation more simple and quick.
Remote receiving terminal on and off, and can be controlled independently of the size of the sound of each terminal.
Powerful PC intelligent all-day broadcast control software automatically 365 days can be realized fully automatic broadcast Timing to open and close.
National original transmitter with automatic antenna frequency detection function, the user simply selected automatically can let automatically set the best antenna transmitter frequency point, installation and commissioning of the user becomes quite simple.
The human digital front panel, direct programming stepping 5KHz.
Soft start to rise slowly from the RF output 0 to the state of the set value.
Adjustable power output from 0 to full power, the power of the automatic gain control, maintained at a fixed level of any output.
Rationalized and easy replacement of the circuit and parts.
The full import of military grade RF power tube.
Adequate protection of the reflected power and overheating fault.
Full power level specifications to meet the different needs of the market as a whole, FMT-30D the 40W, FMT-80D for 80W, FMT-150D is 150W, FMT-350D 350W
Frequency :76-96, or 87.5-108MHz, can be customized according to the user 70 ~ 108MHz.
Frequency Step value: 5KHz or 100Khz.
Modulation method: FM peak deviation ± 75KHz
Frequency stability: <± 100Hz
Frequency stabilization method: PLL phase-locked loop frequency synthesizer
Harmonic Suppression: <-65dBc
RF output impedance: 50Ω
RF output connector: N type female
Audio input connector: RCA
RF output power: FMT-30D 40W the FMT-80D 80W, FMT-150D 150W, FMT-350D is 350W
Pre-emphasis: 50us, 75us (user-selectable)
S / N ratio Mono:> 70 dB (20 to 20KHz)
S / N ratio Stereo:> 65 dB (20 to 15KHz)
Stereo separation:-50dB
Audio Frequency Response: 80 ~ 15000Hz
Audio distortion: <0.2%
Modulation: 15%
Input level:-15dBV
Main power requirements: 220V or 110V
Operating temperature range: -10 to 45 ° C
Operating mode: continuous work
Size: 483 x 88x 350 mm (excluding the handle part), 19 in. standard rack 2U.
Reference range: 6Km-10Km
Standard accessories: an antenna, a 15 m feeder, power cord, Manual 1.
Weight: 10 kg
RDS Intelligent Addressing FM receiver board
Receiving terminal with transmitter the FMT-D series with networking. 128 different address partition controlled.
Automatic tracking host transmitting frequency, and thus do not need to set the frequency receiving terminal.
Adopt imported American Silicon Silicon Labs core RDS decoder chip, decoding error rate is extremely low.
Japan imports BPF filter, strong anti-jamming capability to the outside world.
Switch signal output function will output 5V When decoding correct OK after the high level to the audio amplifier equipment to do the switch control.
The quality of the sound output of the high sensitivity and HIFI.
Frequency :76-96, or 87.5-108MHz, can be customized according to the user 70 ~ 108MHz.
Frequency Step value: 100Khz.
Modulation method: FM peak deviation ± 75KHz
Frequency stability: <± 100Hz
Frequency stabilization mode: PLL phase-locked loop frequency synthesizer
Sensitivity: 8uV EMF
Antenna Impedance: 75Ω
Antenna connector: SMA female
Audio input output connector: 3.5MM stereo jack
S / N ratio Mono:> 65 dB (20 to 20KHz)
S / N ratio Stereo:> 55 dB (20 to 15KHz)
Stereo separation:-45dB Audio Frequency Response: 80 ~ 15000Hz
Audio distortion: <0.2%
Modulation: 15%
Output level: 500mV
Main power requirements: DC6-22V current 0.1A
Operating temperature range: -20 to 85 ° C
Dimensions: 70 x 53 mm
Frequency :76-96, or 87.5-108MHz, can be customized according to the user 70 ~ 108MHz.
Frequency Step value: 100Khz.
Modulation method: FM peak deviation ± 75KHz
Frequency stability: <± 100Hz
Frequency stabilization mode: PLL phase-locked loop frequency synthesizer
Sensitivity: 8uV EMF
Antenna Impedance: 75Ω
Antenna connector: SMA female
Audio input output connector: 3.5MM stereo jack
S / N ratio Mono:> 65 dB (20 to 20KHz)
S / N ratio Stereo:> 55 dB (20 to 15KHz)
Stereo separation:-45dB Audio Frequency Response: 80 ~ 15000Hz
Audio distortion: <0.2%
Modulation: 15%
Output level: 500mV
Main power requirements: DC6-22V current 0.1A
Operating temperature range: -20 to 85 ° C
Dimensions: 70 x 53 mm
RDS addressing broadcast 30W receiver
Intelligent Addressing FM broadcasting equipment of the the RDS-30R professional RDS the designated supporting receiving terminal. It completely solved the instability problems of the traditional SCA, the high reliability of its unique advantage of highly integrated, so every village, every village rang, campus radio, public broadcasting must wireless addressable broadcast equipment.
Frequency :76-96, or 87.5-108MHz, can be customized 70 ~ 108MHz according to the user
Frequency Step value: 100Khz.
Modulation mode: FM peak deviation ± 75KHz
Frequency stability: <± 100Hz
Frequency stabilization method: PLL phase-locked loop frequency synthesizer
Sensitivity: 8uV EMF
Antenna Impedance: 75Ω
Antenna connector: SMA female
Audio input output connector: 3.5MM stereo jack
S / N ratio Mono:> 65 dB (20 to 20KHz)
S / N ratio Stereo:> 55 dB (20 to 15KHz)
Stereo separation:-45dB Audio Frequency Response: 80 ~ 15000Hz
Audio distortion: <0.2%
Output power: 4Ω30W 8Ω30W
Main power requirements: AC220V
Operating temperature range: -20 to 85 ° C
Dimensions: 160*110*60 mm
Full cast aluminum outdoor waterproof shell, internal integrated power transformers and 30W power amplifier
Receiving terminal with transmitter the FMT-D series with networking. 128 different address partition controlled.
Automatic tracking host transmitting frequency, and thus do not need to set the frequency receiving terminal.
Adopt imported American Silicon Silicon Labs core RDS decoder chip, decoding error rate is extremely low.
Japan imports BPF filter, strong anti-jamming capability to the outside world.
Switch signal output function will output 5V When decoding correct OK after the high level to the audio amplifier equipment to do the switch control.
The quality of the sound output of the high sensitivity and HIFI.
Frequency :76-96, or 87.5-108MHz, can be customized 70 ~ 108MHz according to the user
Frequency Step value: 100Khz.
Modulation mode: FM peak deviation ± 75KHz
Frequency stability: <± 100Hz
Frequency stabilization method: PLL phase-locked loop frequency synthesizer
Sensitivity: 8uV EMF
Antenna Impedance: 75Ω
Antenna connector: SMA female
Audio input output connector: 3.5MM stereo jack
S / N ratio Mono:> 65 dB (20 to 20KHz)
S / N ratio Stereo:> 55 dB (20 to 15KHz)
Stereo separation:-45dB Audio Frequency Response: 80 ~ 15000Hz
Audio distortion: <0.2%
Output power: 4Ω30W 8Ω30W
Main power requirements: AC220V
Operating temperature range: -20 to 85 ° C
Dimensions: 160*110*60 mm
Our Products
Product Classification
RDS broadcast system
FM Broadcast Transmitter
TV Broadcast Transmitter
RF Power Amplifier pallet
FM Broadcast Transmitter Kits
RF Components
Antenna Products
RDS broadcast system
RDS addressing broadcast 30W receiver
RDS Intelligent Addressing FM receiver board
RDS intelligent addressable FM system
FM Broadcast Transmitter
1U 30W FM Broadcast Transmitter & EXCITER
2U 1000W FM Broadcast Transmitter & EXCITER
2U 500W FM Broadcast Transmitter & EXCITER
RDS intelligent addressable FM system
2U 150 watt Broadband RF power amplifier
2U 350W FM Broadcast Transmitter & EXCITER
2U 150W FM Broadcast Transmitter & EXCITER
2U 80W FM Broadcast Transmitter & EXCITER
2U 30W FM Broadcast Transmitter & EXCITER
2U 350 watt Broadband RF power amplifier
50W Emergency portable FM Broadcast system
10W PLL stereo FM Broadcast Transmitter
15W PLL stereo FM Broadcast transmitter
3U 1000W FM Broadcast Transmitter & EXCITER
3U 500W FM Broadcast Transmitter & EXCITER
2U 25W FM Broadcast Transmitter & EXCITER
1U 19-inch DSP Digital FM Stereo modulator
6U 19-inch 5KW FM Broadcast Transmitter
6U 19-inch 2KW FM Broadcast Transmitter
TV Broadcast Transmitter
3U DVB-T DVB-H 10W Transmitter & EXCITER
DVB-T 1KW 470-862MHz TV Power Amplifier
DVB-T 250W 470-862MHz TV Power Amplifier
RF Power Amplifier pallet
2U 150 watt Broadband RF power amplifier
2U 350 watt Broadband RF power amplifier
1KW RF Power Amplifier pallet FM(87-108MHz)
600W RF Power Amplifier pallet FM(87-108MHz)
300W RF power amplifier VHF(136-174MHz)
1W broadband RF power amplifier (25-250MHz)
2W broadband linear RF amplifier (470-860MHz)
1000W low-pass filter coupled FM (87-108MHz)
10W RF Power Amplifier pallet FM(87-108MHz)
350W RF Power Amplifier pallet FM(87-108MHz)
150W RF Power Amplifier pallet FM(76-108MHz)
80W RF Power Amplifier pallet FM(76-108MHz)
30W RF Power Amplifier pallet FM(87-108MHz)
DVB-T 200W ATV 450W RF Power Amplifier Pallet
DVB-T 100W ATV 250W RF Power Amplifier Pallet
DVB-T 15W ATV 25W RF Power Amplifier Pallet
150W RF Power Amplifier pallet FM(75-110MHz)
FM Broadcast Transmitter Kits
1000W FM Broadcast Transmitter Kits
600W FM Broadcast Transmitter Kits
30W FM Broadcast Transmitter Kits
80W FM Broadcast Transmitter Kits
300W FM Broadcast Transmitter Kits
150W FM Broadcast Transmitter Kits
FM Broadcast Transmitter Modulation Control Panel
RF Components
MA/COM MRF173 80W 28V Mosfet Transistor
NXP BLF245 30W 28V Mosfet Transistor
300W RF transistor NXP BLF278
Antenna Products
Professional FM Broadcast GP antenna
Professional FM Dipole Antenna
Professional FM Broadcast GP antenna
About US
Changsha TLH Electronic Technology Co., Ltd was established in 2002.It is mainly of Broadcast transmitters, RF power amplifiers, RF power and other radio frequency technology industry development, production and sales The company has a group of senior management and technical personnel and a skilled, well-trained workforce. With advanced production equipment and processes,we can provide you with product-class design and comprehensive solutions. Customers can resolve 10MHz ~ 3GHz, 5KW following the RF electronics equipment development project.
In our RF field, our degree of specialization, technical service, product quality and advanced measuring equipment has been fully recognized by customers, which allows us to maintain long-term customer relations and friendly cooperation. We also with a number of broadcast equipment companies have a good partnership, so that we even stronger field of the RF industry.
订阅：
博文 (Atom)