Equipment rated specification ●Power range: ~AC380V±10；220V±20% ●Frequency: 50±2Hz； ●Designed ambient condition of equipment: Indoor use ●Above sea level height: up to 3500 m ●Atmospheric pressure: 86～106kPb ●Ambient temperature: 0°C to 45°C General Performance Working frequency: 174MHz —...
Equipment rated specification
●Power range: ~AC380V±10；220V±20%
●Designed ambient condition of equipment: Indoor use
●Above sea level height: up to 3500 m
●Atmospheric pressure: 86～106kPb
●Ambient temperature: 0°C to 45°C
Working frequency: 174MHz — 223MHz.
Nominal load resistor impedance 50 Ω coaxial, reflection loss ≥ 26 dB.
Rated output power ：500W.
Overall Machine Technology Specification
Specification of vision part
Video input level:
1Vp-p ± 3dB positive
Sync level 0.3Vp-p
Peak white level 0.7Vp-p
Video input impedance: 75 Ω（Coaxial）
Reflection loss ≥ 30dB .
Frequency 0MHz ～ 6MHz
Periodic clutter signal to noise ratio: 50dB（peak to peak）
Continuous random clutter signal to noise ratio:
average root value（no weighted）≥ 50dB
average root value（weighted）≥ 56dB
Useless transmission power of nearby outside channel is lower than carrier 60dB
Useless transmission power of nearby inside channel is lower than carrier 40dB
2T sine square wave distortion Kp ≤ 2 %
2T sine square wave distortion to bar pulse amplitude ratio Kpb ≤ 2 %
Line frequency tilt Kb ≤ 2 %
Field frequency tilt K50 ≤ 2 %
Brightness nonlinear distortion ≤ 10 %
Differential gain distortion DG ≤ 5 %
Differential phase distortion DP ≤ 5 °
Chroma and brightness gain difference ≤ 10 %
Chroma and brightness delay difference ≤ 30ns
Variation of vision output power ≤± 0.25dB
Carrier stability in three months ≤ ± 50 0Hz/ three months
Blanking level stability ≤ 2.5%
Carrier audacious phase modulation: ± 5 °
Mode of modulation: amplitude modulation , negative pole
Amplitude degree ≤ 87.5 %
Difference of sound carrier and vision carrier: 6.5MHz ± 0.001MHz
Radio frequency sync level: 100%
RF blanking level: 75% ± 2.5%
RF white level: 12.5% ～ 15%
AGBE is a modern high-tech manufacturer specializing in designing, engineering, manufacturing, and marketing of high quality FM transmitters and related accessories. We are one of the biggest suppliers of transmitters in China.
With 20 years of experience in the field of fm transmitter, we won great reputation with our high quality products and excellent service. We provide professional consulting services and marketing advices as well as after sale services. Our business reached over 100 countries and regions all over the world like United States, United Kingdom, Germany, France, Japan, Spain, Sweden, Europe, Middle East, Southeast Asia and so on. Besides, we have done a lot of OEM orders for our customers,Our products mainly include fm transmitters, digital tv transmitter,analog tv transmitter,antennas, power supplies, PCB audio cables, Feeder cables and receivers.
We aimed on not only providing high quality products, but also professional application consulting services. Whatever broadcasting concept you have in mind, we will work with you to quickly find the right product for your project. Needless to say, potential applications for our transmitters are limitless. Do you have an idea on how to use AGBE transmitters to improve your product or service? Please contact us and we will help you find a solution that fits your needs.
1. Coverage of FM transmitter and TV transmitter.
The main parameter which decides the coverage is height of tower, so people install the antenna on very tall tower or build the tower on top of mountain. The signal has attenuation in air transmission, so people use large power of transmitter to supply the power loss. In a word, the main reason of coverage is relative height of tower to ground, secondly is power of transmitter, thirdly is antenna gain.
2. How can I know my coverage.
You can tell us the power of transmitter you have and height of tower plus coordinates if possible, then we can calculate the coverage for you.
3. Can I change the frequency.
For FM transmitter, the frequency is agile, you can select any frequency within 88~108Mhz. For TV transmitter, the bandwidth is narrow, you can just select adjacent 2 or 3 channels.