Tugicom DCE300 User Manual
DCE300
FM digital exciter
V5.0 - 2008
www.tugicom.com
Caution
Before any operation please check the operation voltage switch 110\220V at the left side of the
transmitter, wrong setting of this switch may cause damage to the transmitter
Fast operation
It is strongly recommended to read the entire user manual before operation.
DCE300 - Professional 300W FM Transmitter
DCE300 is a state of the art FM transmitter designed to be the core of every radio station.
Achieving perfect audio quality was our main goal, which means that no matter if your FM
station is 250W or 10kW, no compromise should be when dealing with audio quality.
Package Contents
1x User manual CD
1x DCE300 transmitter
Our engineers, with more than 20 years experience in the RF and audio eld were
directed to use the most modern and advanced technology in the market while keeping
nal product price attractive and competitive and also important, plug and play operation.
The result is even more impressive than planned.
The Exciter module is on a compact board, with over 95% Surface mount technology (SMT) to improve performance, an excellent
1W exciter with a modern PLL and fully digital control with LCD display.
Audio input chain designed perfectly beginning with a shielded XLR balanced input connector to cancel any interference from
noisy RF environment.
Limiter will limit the modulation to the bandwidth occupation specied by the FCC and international standards.
RDS (Radio Data System) is today a standard module in every radio station, a complete RDS module has been integrated inside
the DCE300 including all main features of expensive professional stand alone RDS external modules.
The improved Stereo encoder, use a DSP technology with over sampling, to ensure excellent performance staring from low
distortion, accurate channel separation and stable pilot tone,
An external MPX generator, external RDS/SCA generator or audio processor can be connected to the MPX IN BNC connector to
bypass all internal audio chain.
At factory default, all internal modules - the audio chain, limiter, stereo encoder, RDS and 1W PLL exciter module including the
nal stage Low Pass Filter (LPF) already connected and tuned for maximum performance without any need for user tuning.
1x RDS cable
From the 1W exciter module (TX190) the signal goes to the amplier section that run by BLF278 made by Philips NXP that make
300W output power (typical 250W) and controlled by the digital controller inside the transmitter.
The amplier has also Temperature and SWR protections and has also Low pass lter build in.
An PWM operation is given by the mean well power supply that is protected also.
With emphasis of 24/7 operation without any malfunction, we are sure, that our DCE300 will bring new audio quality for
many thousands audiences all over the world.
SPECIFICATION
GENERAL
Power Supply: MeanWell SE-600-48V - 700W 110/220V
Size: Standard 19” enclosure 2U size
Dimensions: 430X470mm
STEREO ENCODER MODULE
Sub-carrier generation: over-sampled x 8
Pilot generation: 19Khz ± 2Hz ( over-sampled x16)
Stereo separation: >55dB (20Hz-15Khz)
MPX output level: unbalanced 75ohm (BNC connector)
EXCITER MODULE
RF Output Power: 1 Watt typical (1.5W MAX)
Frequency range: 87.5Mhz-108Mhz no-tune
Output Impedance: 50 Ohms
Output connector: SMA
Frequency steps: 50Khz
MPX or SCA input: BNC unbalanced 10Kohm impedance
Harmonic output: <55dBc
Spurious output: <80dBc
Out of lock RF power-down: <-55dB
S.N.R: >75dB
RDS GENERATOR MODULE
Operation mode: Stand alone
Programming with a standard PC LPT port
Data storage: EEPROM during power o
On/O selectable from main LCD display
Signal Bandwidth: 2.4Khz
RDS carrier: 57Khz (over-sampled x 3.2)
Conforms to CENELEC EN50067
4 modes of Dynamic/Scrolling PS
Supports: PI,PS,PTY,TP,AF,TA,DI,M/S,RT,UDG
LIMITER MODULE
Audio input connector: Balanced XLR
Input impedance: 10Kohm
Pre-emphasis: None, 50uS or 75uS
Input CMRR: >65dB
Frequency response: 20Hz–20Khz
AMP300 MODULE
RF Output power : 250W typical (350WMax)
Output Impedance : 50 Ohms
Frequency Range : 87.0MHz- 108MHz
Harmonic rejection : -60dB
Input voltage : 48V/10A DC
LPF section : Included
FEATURES
Compact size - SMT design
Single power supply with onboard voltage regulators
Microprocessor controlled with LCD display
Excellent audio response
Selectable Pre-emphasis: None, 50uS or 75uS
Balanced shielded XLR input connectors
Audio Limiter
Stereo Encoder using a modern DSP technology
RDS (Radio Data System)
Excellent VCO with low distortion
Phase Lock Loop (PLL) system with 50Khz steps for worldwide operation
Full Broadband design – no tune for 87.5MHz -108MHz
1W RF output power with LPF for clean spectral
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