1kW – 5kW rms DAB Radio Transmitter
Description
1kW – 5kW rms DAB Radio Transmitter
DAB Radio Transmitters Ranging From 1Wto 10kW transmitters both Air and Liquid Cooled
AIR COOLED DIGITAL TRANSMITTERS
MAIN CHARACTERISTICS
- Supported standards: DAB, DAB+, T-DMB
- MER ≥ 35 dB
- Easy maintenance
- Complete remote control: Web – SNMP
- High efficiency based on brand-new devices Doherty and extreme ruggedness
- Fully self-protected against Over-Voltage, Over-Current, Temperature, abnormal VSWR
- Seamless switching between any combination of inputs (eti and/or edi) always supported
- Dual drive Option always supported
Eletec DAB Radio transmitters are the state of art for digital signal processing and RF performances. These high-quality parameters are due to:
Digital Adaptive Precorrection (linear and not linear)
The modulation parameters are optimized for every working condition
9thHV-Generation DOHERTY LDMOS devices
Only this category of devices merges the high efficiency with an impressive ruggedness
Compact size
High efficiency heat sinks, very compact power supplies and controlled blowers ensure the highest power density on the market
| Modulation Standards | DAB, DAB+, T-DMB |
| Supported Modes | DAB Modes I,II,III and IV |
| Network mode | MFN and SFN |
| Test Modes | Single Carrier, PBRS |
| INPUT INTERFACES | |
| ETI Inputs | 2 BNC female 75 Ω |
| Redundancy | User selectable between “Primary” and “Secondary” ETI source |
| Ethernet ports | 3 (2 optimized for EDI Inputs) |
| GNSS Input
Frequencies
|
1 BNC female
1.575 GHz (GPS) / 1.602-1.603 GHz (GLONASS) |
| External clock reference
Frequency
Level
Impedance
|
BNC female
10 MHz
100 mV-3Vpp
50 Ohm/ > 1 kOhm, user selectable |
| Time reference
Frequency
Level
Impedance |
BNC female
1PPS
0-5 V, user selectable trigger point 1V or 1.6V
50 Ohm/ > 1 kOhm, user selectable |
| RF PERFORMANCES
DAB. DAB+, T-DMB |
|
| RF Power Out | Up to 5kWrms
(single rack) |
| RF Output Connector | EIA 1-5/8” |
| RF Impedance | 50 Ω |
| Centre Frequency | Adjustable in the range 170-240 MHz in steps
of 1 Hz |
| Frequency Stability | 2 ppm – 0.01 ppm with the int. ref. or in accordance with the ext. ref. accuracy |
| Spectrum Polarity | Inverted and non-inverted
user selectable |
| Power Stability | ± 0.2 dB |
| MER | ≥ 35 dB |
| Shoulders | ≤ -37 dBc |
| RF PERFORMANCES
DVB-T/T2 |
|
| AC Input | 400 Vac ± 10%
3P+N+GND |
| Power Consumption | ≤ 10kVA @ 5kWrms |
| AC Frequency | 47 ~ 63 Hz |
| Power Factor | ≥ 0.97 |
| ENVIRONMENTAL
SPECIFICATIONS |
|
| Altitude | Up to 3000 a.s.l |
| Ambient Temperature | -10 ~ +45°C |
| Humidity | ≤ 95% (not condensing) |
| Cooling Method | Forced Air |
| Acoustic Noise | ≤ 65 dBA |
|
MECHANICAL SPECIFICATIONS |
|
| Dimensions (WxLxH) | 600x1200x2140 mm
42U 19” rack |
| Ambient Temperature | -10 ~ +45°C |
