1.1 Outline
The TY-1340A is a kind of transmitter working on VHF band 170MHz-230MHz, and theRated Output Power: 400W. It is widely used for analog TV signal transmissionand can meet with various standards like PAL B/G, NTSC, SECAM.It is specially designed to supply common orpilot frequency coverage and subsidiary station by consuming small and mediumpower for terrestrial digital TV transmission. It is applicable to built-upareas, basement, tunnel and remote mountainous areas. Its main advantagesinclude installation convenience and simple process in debugging andmaintenance, etc. And in any combination of multiple antenna-feeder system itcan supply local coverage and subsidiary station of wireless digital signal inthe blind area. In addition to being widely used in domestic all-leveltelevision stations and network companies, it has exported in bulk to placeslike Southeast Asia and Africa.
1.2 Mainfeatures
•With RFU modularization, broadband and high consistency design, superlinear and all-solid-state power amplifier.
•With large LCD showed system real time working condition, maintenance and management of system can be achieved easily.
•With design of automatic power off in a situation of large signal input.
•With high reliability, small dimensions, convenience in installment and simple process in maintenance.
•It adopts modular design concept.
•It can upload to digital transmitter smoothly in future.
•Automatic Level Control in larger dynamic range(ALC); Automatic Gain Control(AGC); adaptation of wide dynamic range in different environments.
•With over-VSWR, over-voltage, over-current, over-heat and lighting auto-protective functions.
•With built-in big power fan, transmitter can run in a stable and reliable condition.
•With extended interface for remote control and GSM message auto-alarm system (optional), concentrated monitoring can be achieved.
•With the international and the domestic advanced level of the design and production of equipments.
1.3 Technical Specification
RF Index | TV system standard | PAL B/G, NTSC, SECAM |
Frequency Range | 170-230MHz(Optional UHF 470-860MHz) | |
The rated output power | 400W (synchronous top power) | |
Image/Audio power ratio | 10:1 | |
Output impedance | 50Ω | |
frequency stability | ±300Hz | |
output power loss | +0.25dB | |
In-band intermodulation | ≤-52dB | |
Out adjacent channel useless emission | ≤-60dB | |
In adjacent channel useless emission | ≤-40dB | |
Video Index
| Video input level | 1Vpp±3dB |
Video input impedance | 75 Ω | |
Video input: reflection loss | ≧34dB(frequency:0MHz~5.5MHz) | |
Modulation Mode | AM, negative polarity | |
Modulation | ≤87.5% | |
2T Sine SW distortion KP | ≤2% | |
2T Sine SW/Bar pulse amplitude ratio | ≤2% | |
Brightness non-linearity distortion | ≤10% | |
Blanking level stability | ±2.5% | |
Differential gain DG | ±5% | |
Differential phase DP | ±5% | |
Chroma/Brightness gain difference | ≤10% | |
Chroma/Brightness time delay difference | ±30ns | |
Continuous SCR (rms value, unweighted) | ≥50dB | |
Continuous SCR (rms value,Weighted) | ≥58dB | |
Periodic signal/noise ratio (peak value) | ≥50dB | |
CF Carrier parasitic phase modulation | ±5° | |
Group delay | ≤±50ns | |
Audio Index
| Audio input level | 0dBm±6dB, 600Ω (Bal.) or 10kΩ (Unb.) |
Modulation | FM | |
Pre-emphasis | 50μs | |
MAX. Frequency deviation | ±50KHz | |
Harmonic distortion | ≤1%(30Hz~15KHz) | |
Amplitude frequency characteristic | ±1dB(30Hz~15KHz,50%modulated 50μs) | |
FM signal to clutter ratio (SCR) | ≥60dB(1KHz,100% modulation) | |
AM noise (no modulation) | ≤-50dB | |
Carrier offset | ±300Hz | |
AM noise | ≤-50dB | |
Intercarrier noise | ≤-45dB | |
Image/Audio intermodulation | ≤10% | |
Working Conditions | Cooling system | Forced air cool |
Operation temperature | 0~40℃ | |
Relative humidity | <95%(Non condensation) | |
Atmosphere pressure | 86~106Kpa | |
Power supply | AC220V±10%, 50/60Hz or Customized | |
Size | Net dimension | 64*48*18cm |
Weight | Net weight | 19.5Kg |
Copyright © 2016 Chengdu Tengyue Electronics Co., Ltd. All rights reserved. Email:info@rftye.com Wechat:+86 17345922230 Whatsapp:+8613980034578 Skype:tye.catherine