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Technical specifications
DAB TRANSMITTER
Up to 1500W rms DAB transmitter with liquid cooling system in a
compact solution made by one/two drivers in redundancy driver and
one 1500W amplifier in 44U cabinet.
General features VHF-III frequency band (174 to 230 MHz or 160
to 260 MHz*) Fully compliant with standard TS 102 428 -
(DAB/DAB+/DMB)
transmission High efficiency & Compact size Configurable as
Transmitter or Repeater* High reliability: HPA power supplies in
2+1 configuration Inputs:
-dual ETI (radio) -Ethernet EDI: 2xGBE(Electrical) +
1xSFP(optical/electrical)* -Sat* (DVB-S/S2-multistr.-CAM slot)
-off-air broadcast* (RF)
Fully qualified for SFN - Hitless input switching, Frequency
agile - “static” or “adaptive” pre-correction (both
linear and non-linear) Broadband standardized design Frequency
ref:
-built-in high stability OCXO, -input for optional external
source -Built-in GPS receiver
Single phase voltage supply - High efficiency Front-panel
display & SNMP / HTTP for direct & remote
equipment control. Easy SW/FW update
–remote (Ethernet) –local (USB flash key)
–ASI stream (OTA service)
P75-01/DAB Liquid cooled
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TECHNICAL SPECIFICATIONS
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Top-level output power in compact size: up to 20kW rms per
cabinet, with integrated cooling circulation system to simplify
equipment installation and handling. Excellent performance matches
with ease of operation and reliability, providing the ideal
solution for high-power TV stations. Transmitter configurations are
based on a combination of high gain amplifiers, P75 type, directly
fed by the exciter. Each module includes redundancy in power supply
(2+1). Concerning the whole transmitter, the choice of redundancy
configurations includes dual drive (exciter std-by), passive
reserve (1+1 or n+1) and active reserve. The equipment parts are
installed in 19” cabinets, featuring a remarkably short overall
depth.
Coolant circulation is carried out by redundant pumps, typically
integrated in the transmitter cabinet, connected to outdoor heat
exchanger(s).Coolant flow, as well as fan speed of the heat
exchanger, are adaptively controlled according to the actual
cooling needs. The coolant type, non-toxic and easy to dispose of,
also allows for long service intervals and optimally preserves the
cooling circuit parts. Equipment operation is supervised by the
SyES designed control unit. With a large ouch screen display for an
easy use
The core of the transmitter is the multimode, multistandard
driver named PCM totally designed and manufactured by SyES. This
allows the transmitter to work both analogue and digital and with
almost all existing Radio DAB and Tv standards worldwide. An
additional ALC board (optional) provides the ability of PCM to
drive also third parties amplifiers
Finally on driver measures of MER and shoulder are done: this
allows the performance of the adaptive linear and non linear
precorrection based on sampling of the signal and on the
optimization of RF performances with a step by step tracking
algorithm
Ambient air for Hot swappable
power supplies Liquid cooled heat sink: liquid cooled plate to
dissipate heat coming from power
supplies (from the lower part of the amplifier) and from the
final stages (from
the upper part of the amplifier
Hot coolant to the heat exchanger
Cold coolant from heat exchanger
P75 liquid cooled amplifier : cooling principle
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Cabinet top:
-IN/OUT Connections
(Standard solution, different
available)
-Cooling fan /extractor (OPT)
Probe panel with emergency
button
Transmitter control logic
SyES model UCA
Transmitter exciter/driver
SyES model PCM
(Dual driver solution)
Transmitter RF amplifier
SyES model P75
Transmitter cooling drawer
with two pumps and
expansion vessel inside,
mimic panel and pressure
gauge in front panel
Transmitter Power
distribution
FRONT LAYOUT
600 mm
21
00
mm
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TECHNICAL FEATURES
GENERAL
RF – Output Power – before filter (Wrms) 1600 @ 28 dB MER 1500 @
30 dB MER 1200 @ 33 dB MER
Mains Voltage 230Vac ±15% 47÷63Hz Single phase (autorange)
400Vac ± 15% 47÷63 Hz Three phase (3Ph+N+Pe)
Power consumption (W) 3600
Cooling Liquid cooling system: two pump in redundancy, close
vessel type, 8l/min each amplifier. With external heat
exchanger
Size Width (mm) 600
Height (mm) 2300
Depth (mm) 1100
Weight (kg) 335
BB INPUTS DAB
ref. standards TS 102 428
RF channel width 1.536 MHz blocks
ASI/ETI inputs 2xASI/ETI (BNC f, 75W) – seamless/hitless
switching (SFN)
IP input 2xGBE (ProMPEG Cop3) – Electrical + 1XSFP GBE –
Opt./Elec.*
SATELLITE RECEIVER
SatTV standard DVB-S — DVB-S2 – EN300421
Frequency range 950 – 2150 MHz
Signal level -65 to -25 dBm
Connector – Cond. Access SMA f – CAM slot
LNB control available, through RF input
PS, polarity / band selection: by standard 13/18VDC and 22kHz
signalling
MONITORING AND CONTROLRF
Monitoring Connectors FWD/REF: SMA female , 50 W
Local Control front panel (keys/display/USB port) / standard web
browser
Remote Control Netw. Mgmt.
web browser / SNMP agent – upgrade also through ASI TS (OTA)
Direct signalling IEC 60864-1
FREQUENCY REFERENCES
Built-in ref. Frequency 10 MHz OCXO
Stability time: max ±10-7 /year – temperature: max ±2.5 10-8
(-20° to 70°C)
Ext. ref. Frequency 10 MHz – 1pps
Level 1 Vpp (0.7 to 1.4 V)
VCO tuning step 1 Hz
OPERATING CONDITIONS
Operating temp. range 0° to 50°C*
Max rel. air humidity 95% @ 30°C, no condensation
Max altitude 4000 m a.s.l.
Safety EN 60215 (IEC 215)
OTHER FEATURES
Hitless switching between two of the input signals
BER and CRC analysis for Hitless switching
Parameters configuration via ETI: ETI-all (Modulation
parameters+ optional from MNSC), EIT-Modulation (only modulation
parameters), Local (for manual configuration)
Automatic analysis and check of ETI Input signal: NI(G703),
NA5376(G704), NA5592(G704)
Measurement and visualization of network delay parameters:
o network compensation delay
o Current total delay
o frame zero delay
Transmitter delay and delay offset comparison ,analysis and
configuration (can be set with 100ns step)
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www.syes.eu Features and specifications subject to change
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jitter measurement over network compensation delay(Min and Max
network Jitter delay)
Automatic analysis and check of SSTC Parameters
o Sub channel ID
o Start address
o Type and protection level
o Number of CU
o Subchannel bitrate
Adaptive automatic pre-correction, both linear and
nonlinear.
Can store and load up to 10 different pre-calibrated curves for
an easy adaptation to external filtering
Adaptive pre-correction can be set on-off and run one time,
scheduled or continuous
MER measurement
Can measure and store up to 7 different configuration. This can
be saved ant transferred to other items via USB key or via WEB
/SNMP
Internal GPS high precision receiver for on board
synchronization
High stability OCXO max ±10-7sec /year- temperature: max ±2.5
10-8 (-20° to 70°C), VCO tuning step: 1Hz
holdover function for loss of 10 MHz external signal or of GPS
signal
Standard transmitter protection (over voltage, over current,
over temperature, overload and similar), ROS protection with
threshold level selectable
Standard and advanced Echo cancellation (for gap filler
configuration)
System Block diagram (Output filter optional)
No. 1 PA (P75 type)
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DETAIL ON P75 LIQUID COOLED AMPLIFIER
P75 amplifier front view Detail on 3 internal power supply hot
pluggable 2+1 config.
P75 amplifier rear view with plug in and no spill connectors
Amplifier Block diagram
SY.E.S. S.r.l. Via Zanella, 21- 20851 Lissone (MB) Italy -
Tel.+39.039.9897.1 - [email protected]
mailto:[email protected]