| Total:1833 USD | |
| Item:1369 USD Shipping:464 USD |
FMUSER 15W TV Transmitter UHF/VHF
General Description
This FMUSER transmitter makes use of RF modulation technology and imported power amplifier, featuring simple circuit design, good performance, stable operation and long time continuously running. It can make up a medium-power TV station when connected with the microwave equipment, satellite TV receiving equipment and video recording equipment.
The complete kit contains:
1. 15W TV Transmitter one Set
2. Broadcast Antenna one Piece
3. 30 meters feeder cable one Piece
4. Video input cable one Piece
5. Audio input cable one Piece
6. Power supply cord one Piece
7. Operation instructions one Copy
Operation Principle
The 15W TV transmitter is composed of three parts, a modulation unit, a power amplifier (PA) unit and a switching power supply. In the modulation unit, video signals are adjusted to the suitable modulation depth via a level adjusting potentiometer and then clamped by a diode. The audio signals are sent to a FM oscillator for frequency modulating after its frequency deviation is adjusted by the level potentiometer. The FM oscillator employs a LC oscillator and generates6.5MHz FM signal by a variable capacitance diode. The frequency of the crystal oscillator is multiplied to generate the wanted visual carrier. 6.5MHz FM signal and video signal modulate the visual carrier simultaneously. A bandpass filter will filter out unwanted components and the signals will be sent to the PA unit by a broadband amplifier.
PA unit is composed of first stage PA and final stage PA units. The first stage PA unit consists of a module and a transistor and adopts a class-A broadband amplifier. The gain of the module is 34dB and the total gain of the PA is about 54dB. Working current of the triode transistor can be calculated by measuring voltages on both ends of the resistor R6 (2W 1W).
The power supply unit contains a switching power supply which features small size, lighter weight and high efficiency and can provide over-current and short-circuit protections, so that the transmitter will work at a stable 28V DC voltage. The overall equipment uses one 28V/10A power supplies. In the case of one of the power supplies is out of order, the transmitter will be switched off into safety mode automatically.
Specifications
General
Dimensions 120mm*400mm*420
Temperature range 0- 40ºC
Relative humidity 90% (at 25°C)
Voltage 220VAC or 110VAC 50-60Hz (please let us know your voltage and frequency , we can custom make for you )
Power consumption 70W
Operating channel any appointed channel within UHF or VHF
Modulation method Vision: negative polarity, AM
Sound: FM
TV standard : PAL , NTSC , SECAM ( Pleast let us know the standard you need , we can custom make for you )
Vision/sound power ratio 10:1
Output power 15W
Output impedance 50W
Unwanted radiation in adjacent channel £ -50dB
Intermodulation distortion in- band £-50dB
Video characteristics
Video input voltage 1Vp-p ± 3dB
Video input impedance 75W
Vision carrier stability ± 500 Hz/Day
Amplitude vs. Frequency 0-5MHz £ ± 0.5dB
Random spurious S/N ³50dB
Differential gain £ 7%
Differential phase £ 5°
Audio Characteristics
Audio input level ³100mV
Audio input impedance unbalanced
Max. frequency deviation ± 50KHz
Audio harmonic distortion 40Hz – 150Hz £ 2%
FM S/N ³60dB
| Total:1833 USD | |
| Item:1369 USD Shipping:464 USD |
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How far(long) the transmitter cover?
The transmission range depends on many factors. The true distance is based on the antenna installing height , antenna gain, using environment like building and other obstructions , sensitivity of the receiver, antenna of the receiver . Installing antenna more high and using in the countryside , the distance will much more far.
EXAMPLE 5W FM Transmitter use in the city and hometown:
I have a USA customer use 5W fm transmitter with GP antenna in his hometown ,and he test it with a car, it cover 10km(6.21mile).
I test the 5W fm transmitter with GP antenna in my hometown ,it cover about 2km(1.24mile).
I test the 5W fm transmitter with GP antenna in Guangzhou city ,it cover about only 300meter(984ft).
Below are the approximate range of different power FM Transmitters. ( The range is diameter )
0.1W ~ 5W FM Transmitter ：100M ~1KM
5W ~15W FM Ttransmitter : 1KM ~ 3KM
15W ~ 80W FM Transmitter : 3KM ~10KM
80W ~500W FM Transmitter : 10KM ~30KM
500W ~1000W FM Transmitter : 30KM ~ 50KM
1KW ~ 2KW FM Transmitter : 50KM ~100KM
2KW ~5KW FM Transmitter : 100KM ~150KM
5KW ~10KW FM Transmitter : 150KM ~200KM
How to contact us for the transmitter?
Call me +8615915959450 OR
Email me [email protected]
1.How far you want to cover in diameter ?
2.How tall of you tower ?
3.Where are you from ?
And we will give you more professional advice.
About Us
FMUSER.ORG is a system integration company focusing on RF wireless transmission / studio video audio equipment / streaming and data processing .We are providing everything from advice and consultancy through rack integration to installation, commissioning and training.
We offer FM Transmitter, Analog TV Transmitter, Digital TV transmitter, VHF UHF Transmitter, Antennas, Coaxial Cable Connectors, STL, On Air Processing, Broadcast Products for the Studio, RF Signal Monitoring, RDS Encoders, Audio Processors and Remote Site Control Units, IPTV Products, Video / Audio Encoder / Decoder, designed to meet the needs of both large international broadcast networks and small private stations alike.
Our solution has FM Radio Station / Analog TV Station / Digital TV Station / Audio Video Studio Equipment / Studio Transmitter Link / Transmitter Telemetry System / Hotel TV System / IPTV Live Broadcasting / Streaming Live Broadcast / Video Conference / CATV Broadcasting system.
We are using advanced technology products for all the systems, because we know the high reliability and high performance are so important for the system and solution . At the same time we also have to make sure our products system with a very reasonable price.
We have customers of public and commercial broadcasters, telecom operators and regulation authorities , and we also offer solution and products to many hundreds of smaller, local and community broadcasters .
FMUSER.ORG has been exporting more than 13 years and have clients all over the world. With 13 years experience in this field ,we have a professional team to solve customer's all kinds of problems. We dedicated in supplying the extremely reasonable pricing of professional products & services. Contact email : [email protected]
Our Factory
We have modernization of the factory . You are welcome to visit our factory when you come to China.
At present , there are already 1095 customers around the world visited our Guangzhou Tianhe office . If you come to China , you are welcome to visit us .
At Fair
This is our participation in 2012 Global Sources Hong Kong Electronics Fair . Customers from all over the world finally have a chance to get together.
Where is Fmuser ?
You can search this numbers " 23.127460034623816,113.33224654197693 " in google map , then you can find our fmuser office .
FMUSER Guangzhou office is in Tianhe District which is the center of the Canton . Very near to the Canton Fair , guangzhou railway station, xiaobei road and dashatou , only need 10 minutes if take TAXI . Welcome friends around the world to visit and negotiate .
Contact: Sky Blue
Cellphone: +8615915959450
WhatsApp: +8615915959450
Wechat: +8615915959450
E-mail: [email protected]
QQ: 727926717
Skype: sky198710021
Address: No.305 Room HuiLan Building No.273 Huanpu Road Guangzhou China Zip:510620
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English: We accept all payments , such as PayPal, Credit Card, Western Union, Alipay, Money Bookers, T/T, LC, DP, DA, OA, Payoneer, If you have any question , please contact me [email protected] or WhatsApp +8615915959450
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PayPal.  www.paypal.com
We recommend you use Paypal to buy our items ,The Paypal is a secure way to buy on internet .
Every of our item list page bottom on top have a paypal logo to pay.
Credit Card.If you do not have paypal,but you have credit card,you also can click the Yellow PayPal button to pay with your credit card.
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But if you have not a credit card and not have a paypal account or difficult to got a paypal accout ,You can use the following:
Western Union.  www.westernunion.com
Pay by Western Union to me :
First name/Given name: Yingfeng
Last name/Surname/ Family name: Zhang
Full name: Yingfeng Zhang
Country: China
City: Guangzhou
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T/T . Pay by T/T (wire transfer/ Telegraphic Transfer/ Bank Transfer)
SWIFT BIC: BKCHHKHHXXX
Bank name: BANK OF CHINA (HONG KONG) LIMITED, HONG KONG
Bank Address: BANK OF CHINA TOWER, 1 GARDEN ROAD, CENTRAL, HONG KONG
BANK CODE: 012
Account Name : FMUSER INTERNATIONAL GROUP LIMITED
Account NO. : 012-676-2-007855-0
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* It will be sent in 1-2 working days when payment clear.
* We will send it to your paypal address. If you want to change address, please send your correct address and phone number to my email [email protected]
* If the packages is below 2kg,we will be shipped via post airmail, it will take about 15-25days to your hand.
If the package is more than 2kg,we will ship via EMS , DHL , UPS, Fedex fast express delivery,it will take about 7~15days to your hand.
If the package more than 100kg , we will send via DHL or air freight. It will take about 3~7days to your hand.
All the packages are form China guangzhou.
* Package will be sent as a "gift" and declear as less as possible,buyer don't need to pay for "TAX".
* After ship, we will send you an E-mail and give you the tracking number.
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For Warranty .
Contact US--->>Return the item to us--->>Receive and send another replace .
Name: Liu xiaoxia
Address: 305Fang HuiLanGe HuangPuDaDaoXi 273Hao TianHeQu Guangzhou China.
ZIP:510620
Phone: +8615915959450
Please return to this address and write your paypal address,name,problem on note: |
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