Connecting What`s Next Maxiva™ UAX

Transcription

Connecting What`s Next Maxiva™ UAX
Maxiva™ UAX
Air­Cooled UHF Multimedia TV Transmitter
The Maxiva™ UAX air­cooled UHF solid­
state transmitter incorporates
PowerSmart® and Maxiva M2X™
multimedia exciter technologies to
provide today’s broadcaster unmatched
performance, reliability and quality.
Designed with future broadcasting needs
in mind, the Maxiva UAX transmitter is a
single transmitter platform capable of
DVB­T/H, DVB­T2, ATSC, ATSC Mobile
DTV, ISDB­Tb, CMMB, CTTB or other
digital standards.
For pre­filter power output requirements up to 2.5 kW COFDM,
Hot­pluggable air­cooled linear RF amplifier modules and
power supplies for simplified maintenance
Modular central control system for straightforward monitoring
and in­depth diagnostics
Web­enabled remote graphical user interface (GUI)
2.5kW 8VSB, and 3.75 kW analog, the Maxiva UAX
Product Details
transmitter is capable of serving broadcasters needs for
efficient, easy to maintain transmitter systems. The UAX
utilizes GatesAir platform technologies such as the Maxiva
Increased Density and Efficiency via GatesAir
M2X multimedia exciter, PowerSmart technology and 50v
PowerSmart Technology
LDMOS amplifier devices. This powerful blend provides best­
Featuring PowerSmart technology in its transmitter
in­class performance with respect to transmitter RF
architecture, the Maxiva UAX line offers superior power and
performance, efficiency, size, and upgradeability.
efficiency. New 50­volt LDMOS device technology delivers a
dramatic increase in power density, lower operating costs and
reduced cost of ownership over the life of the transmitter.
Product Features
PowerSmart technology, for best­in­class power efficiency and
lowest operating costs
Improved Uptime and Reduced Service Costs
Redundant PA and universal power supply (PS) modules
simplify on­air servicing and eliminate costly interruptions.
Rugged, reliable design and construction
Lightweight pallets and modules facilitate overnight/same­day
Digital and analog power levels up to 2.5 kW and 3.75 kW,
shipping for simple, cost­effective spares holding. The Maxiva
respectively (before filter)
Maxiva M2X exciter technology, allowing easy migration from
analog to digital or between different standards
Real­Time Adaptive Correction (RTAC™) technology is
UAX transmitter also supports replacement of pre­tuned
amplifier pallets in the field, eliminating the need for complex
tuning after FET replacement.
included with every system
Fully broadband power amplifier (PA) modules — 470 to 862
MHz
1:1 PA module to power supply (PS) redundancy
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Maxiva™ UAX
Maximized Coverage with the Maxiva M2X Exciter
Utilizing the GatesAir Maxiva M2X multimedia exciter, the
Maxiva UAX transmitter takes digital and mobile TV to the
next level. Our digital exciters have logged more hours in real­
time broadcast than all others combined. The Maxiva M2X
exciter provides a flawless signal with complete technical and
regulatory compliance for tube­ and solid­state digital
transmitters.
Maxiva M2X supports a wide range of global digital standards
including ATSC, ATSC Mobile DTV, DVB­T/H, ISDB­Tb, ISDB­
Tb with remultiplexing/restamping option, FLO, CTTB, CMMB
and a range of analog TV standards, including NTSC and PAL.
It allows for a smooth conversion to digital transmission, and
this flexibility, coupled with the exclusive Real­Time Adaptive
Correction (RTAC) technology incorporated in the exciter,
provides superior performance.
Compact Footprint
Suited for crowded, shared transmitter sites, the Maxiva UAX
transmitter reduces facility space requirements and simplifies
installation.
Powerful, Straightforward Monitoring and Control
The main system control is located in the low­power unit and
communicates with each amplifier bay that has independent
protection and control capabilities. Each power amplifier (PA)
module has dedicated control and monitoring to support on/off
functionality and alarms for reflected power, temperature and
current overloads.
For maximum functionality, all dual drive Maxiva UAX systems
include a Transmitter Control Unit (TCU). The TCU includes
two parallel levels of operational support: a main
microprocessor based controller and a back­up, or “life­
support” controller. The main controller provides a front­panel,
color touch­screen display, SNMP communications support
and IP connectivity via the built­in Web GUI. Ideal for network
operations, the control system can be accessed from
anywhere in the world via TCP/IP over a telecom or network
connection. The back­up controller provides minimal control
and monitoring of the transmitter platform, using a small
number of parallel signals, simple interface controls and front­
panel controls and indicators.
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Maxiva™ UAX
Images/Diagrams
UAX­15AN
UAX­100 Digital/UAX­75/150AN
UAX­250 Digital/UAX­375AN
UAX­500 Digital/UAX­750AN
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Maxiva™ UAX
UAX­1000 Digital/UAX­1500AN
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Maxiva™ UAX
UAX­2000 Digital/UAX­3000AN
Specifications
Specifications and designs are subject to change without notice
General
Frequency
470 to 862 MHz, in 1 Hz steps
Range
Transmission
ATSC, DVB­T, DVB­T2, ISDB­Tb, Analog, CTTB
Standards
Channel
6, 7 or 8 MHz (system dependent)
Bandwidth
Rated Power
See chart below
Output
Output Power
0 to ­10 dB
Reduction
Range
RF Load
50 ohms
Impedance
VSWR
Protected against open or short circuit, all phase angles. Capable of operation into infinite VSWR with user­
adjustable fold back threshold. Factory pre­set to 4% of nominal nameplate power (VSWR = 1.5:1)
RF Output
N­female, DIN 7­16, or 1­5/8” EIA (dependent upon power level)
Connector
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Maxiva™ UAX
AC Mains
AC Line Voltage
3 phase: 380 to 415 V, or 208 to 240 V, 50/60 Hz, or single phase 208 to 240 V, 50/60 Hz ­ specify when
ordering
AC Line
±15%, between 208 to 230 V or 380 to 400 V
Variation
Power Factor
>0.97 (0.98 typical)
Environmental
Altitude
Up to 13,123 ft (4,000 m) elevation above mean sea level
Ambient Temperature
32° to 113° F (0° to 45° C) at sea level (upper limit derated 3.6° F (2° C) per 984 ft (300 m) elevation AMSL)
Humidity
95%, non­condensing
Cooling Method
Air­cooled with internal fans, air flow front to rear (external air using optional front air plenum)
Acoustic Noise
<65 dBA (measured 1 m in front of cabinet), with external input air plenum/door
Frequency Stability
Without precision frequency control/GPS: ±150 Hz/month (2.3 x 10­7ppm)
External Inputs
GPS Input
SMA female, 50 ohms, (+5 V DC @ 100 mA max output for active antenna)
1 PPS Input
BNC female, user selectable 50 ohms or high impedance termination
10 MHz Reference Frequency Input
BNC female, 50 ohms
Monitoring Outputs
RF monitor (exciter)
SMA female
1 PPS
BNC female
10 MHz
BNC female
DVB­T/DVB­T2/ISDB­Tb/CTTB Specification
Power Output (average)
125 W to 2.5 kW models available, measured before mask filter (see chart below)
Systems
DVB­T/H, standard EN 300744 DVB­T2, standard EN 302 755 ISDB­Tb, Brazil ANATEL standard CTTB (China)
ASI/T2MI Inputs
2 inputs BNC female; 75 ohms according to EN 50083­9 (for DVB­H 2 main/2 hierarchical)
Crest Factor
13 dB maximum
Shoulder Level
<­37 dB (before mask filter)
END
<0.5 dB
MER
>34 dB (typical 36 dB)
Harmonics (before filter)
<­40 dB
Central Carrier Suppression
>75 dB
DVB­T2 Modes
Supports multiple PLP’s, MISO, extended bandwidth mode, PAPR reduction
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ATSC Specification
Power Output (average)
125 W to 2.5 kW models available, measured before mask filter (see chart below)
System
ATSC A­53, 8­VSB DTV standard
Data Input
19.39 Mb/s, configurable as SMPTE­310M or ASI (user selectable)
Impedance
75 ohms, unbalanced
Input Connector
2 inputs, BNC female
Signal to Noise (EVM)
>27 dB (EVM <4%), Typical >32 dB (EVM <2.5 %)
Phase Noise
<104 dBc/Hz @ 20 kHz offset (ATSC A/64)
Harmonic Radiation and
Meets mask requirements specified in FCC 5th and 6th report and order
Spurious
Sideband Performance
Compliant with FCC radiation mask, when measured at the output of GatesAir­supplied output
filter
Analog
Power Output (vision peak of
15 W to 3.0 kW models available, measured after GatesAir­supplied IMD filter (see chart below).
Sync)
10% sound
Analog Television Systems
CCIR G, I, K, K1, M, N
Color Systems
PAL, NTSC, SECAM
Sound Systems
Monaural, BTSC, IRT, NICAM G
Analog Video Performance
Video Input
0.7 to 1.4 V, 75 ohms, 32 dB return loss
Regulation of Output Power1
±3%
Variation of Output Power2
±2%
Vision Sideband Response3
PAL system G shown (other systems available) ­1.25 MHz and below ­20 dB or less ­4.43 MHz ­30 dB or less ­0.75 to ­1.25 MHz 0.5 dB or less ­0.5 to 4.5 MHz 0.5 to ­0.5 dB 5.0 MHz 0.5 to ­2.5 dB 5.75 MHz and above ­35 dB or less
Differential Gain5
3%
Differential Phase5
3°
Low Frequency Linearity6
10%
Incidental Carrier Phase Modulation5
±2°
Signal to Noise Ratio
>60 dB (weighted)
K Factor
2% or less with 2T sin2 pulse
20T Equivalent Gain and Delay
3% total baseline distortion
Spurious and Harmonic Radiation
­60 dB, or better
In­Channel Intermodulation Distortion
­58 dB (­60 dB typical)
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Analog Sound Performance
Modulation Capability
±120 kHz peak deviation
Monaural Input
Adjustable 0 to 12 dBm, 600 ohms, balanced, >30 dB return loss
Pre­emphasis
Selectable 75 or 50 µS
Frequency Response
±0.5 dB, 40 Hz to 15 kHz
Harmonic Distortion
0.5%, 30 Hz to 15 kHz
FM Noise
60 dB RMS with de­emphasis
AM Noise
50 dB RMS from 30 Hz to 15 kHz
Synchronous AM Noise
40 dB RMS at 400 Hz with ±25 kHz deviation
IRT Sound
Available
NICAM Sound
Available
Parallel Remote
25 conductor D­sub for single drive basic rack, 12 conductor terminal block (mini Wago) on deluxe rack
Ethernet/SNMP
RJ­45, twisted pair
Compliance
RoHS 2002/95/EC R&TTE 1999/5/EC Safety: EN 60215 EMC: EN 301­489­1 FCC Part 73 Manufacturing: ISO 9001: 2008
1 Variation of peak output power with a change in average picture level from black to white (0% to 100%).
2 Peak­to­peak variation of peak sync voltage during one field using field test signal per EIA­508.
3 Response specified for transmitter operating into a resistive load of 1.05:1 VSWR.
4 Measured using 20% peak­to­peak amplitude swept video modulation with pedestal set at 10%, 50% and 90% APL. All percentages
relative to a blanking to white transition.
5 Measured using a 5­step staircase signal. Test signal #3, CCIR REC. #421­3.
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UAX Power Levels
Digital Models Power Before Filter Power After Filter (xx = modulation)
(Watts)
(Watts)
RF Output Connector
Total Rack Space UAX­100xx
125
100
“N” Female
4RU
UAX­250xx
313
250
7­16 DIN
7RU
UAX­500xx
625
500
7­16 DIN
7RU
UAX­1000xx
1,250
1,000
7­16 DIN
12RU/ *17RU
UAX­2000xx
2,500
2,000
1­5/8” EIA
24RU/ *31RU
Analog Models
Power Before Filter Power After Filter RF Output Connector
Total Rack Space (Watts)
(Watts)
UAX­15AN
19
15
“N” Female
4RU
UAX­75AN
94
75
“N” Female
4RU
UAX­150AN
188
150
“N” Female
4RU
UAX­375AN
470
375
7­16 DIN
7RU
UAX­750AN
938
750
7­16 DIN
7RU
UAX­1500AN
1,875
1,500
7­16 DIN
12RU/ *17RU
UAX­3000AN
3,750
3,000
1­5/8” EIA
24RU/ *31RU
(*with dual exciters)
(*with dual exciters)
Modulations
AN – Analog AT – ATSC DV – DVB­T T2 – DVB­T2 IS – ISDB­Tb
IR­ISDB­Tb with remultiplexing/restamping option
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