MODEL: GME
Specifications:1KW FM Transmitter Professional used for FM radio transmitter station
Standard: FM
Frequency: 87MHz~108MHz wideband
Outputpower:≥1kw
Product introduction:1kw FM transmitter is mainly consisting of seven parts, i.e., exciter, power amplifier (PA) unit, central control unit (CCU), power supply control unit (PSCU), switching mode power supply (SMPS), passive components (divider, combiner, filter, directional coupler, etc.) and cooling system. Its appearance and internal structure are shown on left.
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Overview
1kw FM transmitter is mainly consisting of seven parts, i.e., exciter, power amplifier (PA) unit, central control unit (CCU), power supply control unit (PSCU), switching mode power supply (SMPS), passive components (divider, combiner, filter, directional coupler, etc.) and cooling system.
Features
1)Advanced technology and design concepts.
2)LDMOS all solid state technology, all solid state and broadband design of complete machine.
3)Adopt one-time power distribution and direct synthesis of radio frequency technologies of proprietary intellectual property rights.
4)Main components adopt modular design concept, which is easy for maintenance and upgrade.
5)Connect redundancy design together to reduce break rate.
6)Redundancy design in power amplifier unit: it shall be configured same 2KW power amplifier unit, and it can backup and conduct replacement for each other.
7)Redundancy design in backups of power supply: multiple switching power supplies are in paralleled current sharing. Moreover, single damage won’t affect broadcasting of complete machine.
8)Redundancy design in main and spare exciter: main exciter and spare exciter can backup for each other, and manual/automatic shift can be achieved.
9)Intelligent and networking monitoring system
10)Master control adopts ARM processor control technology which is equipped with strong self-diagnostic function.
11)Human-computer interaction interface adopts touch screen which is simple and useful.
12)Thorough data detection technology and remote monitoring system can realize real-time monitoring on local/remote working conditions.
13)Data exchange adopts CAN bus system which is rapid, reliable and convenient for applying computer management and monitoring.
14)Perfect protective measures can safeguard safe operation of equipment.
Adopt high-performance high-power power amplifier tube with anti standing-wave ratio 40:1.
15)Power amplifier is equipped with a series of protection including VSWR, temperature and over excitation.
16)Switching power supply is equipped with a series of protection including overvoltage, overcurrent, under voltage, temperature and so on.
17)Complete machine is equipped with VSWR, lightning protection, default phase and other protection.
18)Component connection directly adopts hot plug technology, which is convenient for maintenance and operation.
19)Power amplifier unit and switching power supply are designed to be direct hot plug, and cable connection is unnecessary.
Output power | 1KW |
RF output impedance | 50W |
Output interface | EIA 1-5/8” no Flan(optional) |
Range of frequency | 87.5-108MHz |
Frequency stability | +/-1ppm (-10~50°C) |
Residue Wave Radiation | Less than 1mW |
Power voltage | 380V/50Hz, three-phase four-line/single-phase 220V |
Power Consumption | ≤2KVA |
Dimensions | 900×575×650mm(height×width×depth) |
Environment temperature | 5-40℃ |
Aititude | ≤2000 meters |
Relative humidity | ≤95% |
Remote control interface | RS485 |
Audio input interface | XLR,balanced or imbalanced |
Audio output impedance | 600Ω(balanced)or10KΩ |
Audio input level | -13dBm~+14dBm |
Pre-weighted time constant | 0、50、75us(optional) |
Frequency response | ±0.5dB (30Hz~15KHz) |
Harmonic distortion | ≤0.5%,(30Hz~15KHz) |
FM SNR | ≥70dB |
Separation index of Right and Left Sound Channels | ≥40dB, 100% modulate(30Hz~15KHz) |
Level Difference between Right and Left Channels | ≤0.4dB |
Frequency Deviation of Pilot Signal | ±1Hz |
Audio input interface | BNC,imbalanced |
Audio input impedance | 10KΩ |
Audio input level | -13dBm~ +14dBm |
Frequency response | ±0.2dB (30Hz~100KHz) |
Harmonic distortion | ≤0.1%,(30Hz~100KHz) |
FM SNR | ≥70dB |
Separation index of Right and Left Sound Channels | ≥50dB, 100% modulate |
E-mail:dygme@163.com
Add: No. 21 Shuiyuan West Road, Liandong U Valley Science and Technology Park, Miyun District, Beijing, China