DAB TRANSMITTER P75-01/DAB Liquid cooled · DAB and Tv standards worldwide. An additional ALC board...

TECHNICAL SPECIFICATIONS

www.syes.eu Features and specifications subject to change without notice

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




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




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




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)





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)




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]

DAB TRANSMITTER P75-01/DAB Liquid cooled · DAB and Tv standards worldwide. An additional ALC board...

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