GATESAIR

Maxiva "ULXT
with PowerSmart* 3D
High Efficiency UHF Liquid-Cooled TV Transmitter

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The GatesAir Maxiva ULXT with PowerSmart 3D is a liquid-cooled transmitter

that powers over-the-air delivery across the UHF television spectrum. Built on the
next generation of GatesAir's groundbreaking green transmission architecture,
Maxiva transmitters offer today's digital broadcaster compact, energy-efficient
solutions to reliably deliver rich, high-quality multi-format content to viewers at
home or on the move, and reduce Total Cost of Ownership.
Maxiva ULXT utilizes the latest 50 volt LDMOS amplifier devices, new compact high-efficiency power
supplies and the Maxiva M2X exciter with RTAC. It provides today's broadcaster with unparalleled
power efficiency and outstanding signal performance. In fact, a single ULXT PowerSmart 3D
amplifier model covers the entire frequency range of UHF band IV/V, without the need for
adjustment or tuning of any kind.
This powerful blend of new technologies provides best-in-class performance with respect to
transmitter power efficiency, physical size, performance and features. The modular design
allows for simpler installation, infrequent maintenance requirements together with dramatically
reduced total cost of ownership over the life of the transmitter.

Product Features
The fully broadband UHF transmitter
with the highest efficiency on the market.
The all-new design includes these energy

Field-proven Maxiva M2X exciter

technology, allowing easy migration to new

saving components to reduce Total Cost of

PowerSmart 3D amplifier technology, for

Fast acting, all-digital linear and nonlinear

pre-correction, using exclusive Maxiva
Real-Time Adaptive Correction (RTAC)

best-in-class power efficiency, broadband

operation and lowest operating costs

Broadband high-efficiency PA modules,

with no tuning of adjustments

High efficiency, compact, hot swappable

AC to DC power supplies

One-to-one power supply to power

amplifier redundancy

Variable speed coolant pumps and heat

exchanger cooling fans maximize system
efficiency

Hot-pluggable, small and lightweight (11 kg)

linear RF amplifier modules and DC power
supplies

Typical AC to RF efficiency of up to 42% for

ATSC, including cooling system

Transmitter monitoring and in-depth

diagnostics via easy-to use, front panel
controls and indicators

Ownership:
The Maxiva ULXT PowerSmart 3D series
is available from low power to high
power models, suitable for almost any
UHF broadcast application.
Designed with future broadcasting
needs in mind, the ULXT
transmitter is capable of multiple
modulation schemes UHF digital
operation including ATSC, ATSC
MDTV, DVBT/H, DVB T2, ISDB-Tb and
future digital standards. Upgrading
to newer digital standards is readily
accomplished to further extend the
capability and life of the transmitter.

Typical AC to RF efficiency of up to 38%

for all COFDM TV modulations, including
cooling system
Rugged, reliable design and construction
Digital power levels up to 17.7 kW ATSC,
1 0.8 kW COFDM TV yields the highest
power density per cabinet

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digital standards

Incorporates Maxiva Web-enabled remote

control graphical user interface

Includes front panel LCD screen for display

of transmitter parameters, including
Forward Power and Reflected Power

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Available Options:
Integral GPS/GLONASS receiver for SFN
timing Dual exciters and switcher
Exciter external UPS

Internal or External pump system (for

models up to 5.5 kW COFDM/9.0 kW
ATSC)

ASI/T2MI over IP (1 00/1OOOBASET)

Compact Footprint

Improved Uptime and Reduced Service

As the most compact liquid-cooled UHF

transmitter, the Maxiva ULXT is ideal for
crowded, shared transmitter sites. The
Maxiva M2X exciter drive further reduces
rack space requirements. The Maxiva
ULXT transmitter reduces facility space
requirements, simplifies installation,
lowers shipping costs and allows for easier
maintenance.

Costs

Hot-pluggable, redundant power amplifier

(PA) and universal power supply (PS)

Highest Power Density

Product Details
GatesAir PowerSmart 3D
Technology Inside

The Maxiva ULXT transmitter offers superior

power density and by far the highest
available system efficiency on the market.
This new amplifier design utilizes the latest
50 volt LDMOS device technology to deliver
a dramatic increase in power density,
lower operating costs and reduced cost of
ownership over the life of the transmitter.

The Maxiva ULXT provides the highest

power density per rack in a UHF transmitter.
With power levels up to 17.7 kW ATSC and
1 0.8 kW COFDM, fewer amplifier racks are
required.
Global Monitoring and Control
The Maxiva ULXT transmitter can be
controlled from anywhere in the world
with an intuitive browser-based GUI or
SNMP over TCP/IP via a telecom or network
connection with password protection.

modules make on-air servicing easy and

eliminate costly service interruptions. Light
weight universal PA pallets and universal
PS modules facilitate overnight/same-day
shipping for simple, cost-effective spares
holding. With lightweight subassemblies, the
Maxiva ULXT eliminates any two-person lift
requirements for routine maintenance and
troubleshooting.

Smooth Upgradeability

The Maxiva ULXT system features the new

UAX Compact Class drive, using Maxiva M2X
exciter technology, allowing for a seamless
transition from any analog standard to
a digital terrestrial standard, or from
an existing digital standard to a future
standard, such as from DVBT to DVBT2 or
from ATSC to ATSC MDTV.

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Maxiva ULXT Block Diagrams

10 PA system, Dual Drive Option Shown

M2X Exciter A

I
I
I

IPA 1

T
*- PA 1

I
I
Control 1

Redundant
controllers
Control 2

Qn
ti

ii

I
I

PAx

IPA 2

M2X Exciter B

X = 2, 4, 6, 8 or 10

PS 1

Main
Controller

PS x

Specifications
Specifications and designs are subject to change without notice

General

168 to 242 Mhz, in 1Hz steps

Frequency Range

Transmission Standards

ATSC, DVBT, DVBT2, ISDB-Tb, CTTB (DTMB), CMMB

Channel Bandwidth

6, 7 or 8 MHz (system dependent)

Rated Power Output

See chart below

Output Power Stability

2% or better

Output Power Reduction

Oto 10 dB

Range

RF Load Impedance

50 ohms

VSWR

Protected against open or short circuit, all phase angles. Capable of operation into infinite VSWR with user-adjust
able fold back threshold. Factory preset to 2.8% of nominal nameplate power (VSWR = 1.4:1)

RF Output Connector

15/8, 31/8 or 41/16 EIA (dependent upon power level)

Transmitter Dimensions

Call GatesAir

Transmitter Weight

Call GatesAir

AC Mains
AC Line Voltage

3 phase: 380 to 415 V, or 208 to 240 V, 4763Hz specify voltage when ordering

AC Line Variation

+15%, between 208 to 230 V or 380 to 400 V

Power Factor

>0.95

Environmental

Altitude

Up to 3,000 m (9,843 ft) elevation above mean sea level

Ambient Temperature

0 to 45 C (32 to 11 3 F) at sea level (upper limit derated 2 C (3.6 F) per 300 m (984 ft) elevation AMSL)

Humidity

95%, non-condensing

Cooling Method

Liquid-cooled, using 50/50 mix of ethylene or propylene glycol and water

Acoustic Noise

<65 dBA (measured 1 m (3.3 ft) in front of cabinet)

Frequency Stability

Without precision frequency control/GPS: 150 Hz/month

(2.3 x 107ppm)

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External Inputs
GPS Input

SMA female, 50 ohms, (+5 V DC @ 100 mAmax output for active antenna)

1 PPS Input

Standard Andrew Superflexible Heliax Cable: Standard Cable, Standard Jacket.

10 MHz Reference Frequency

Input

Heliax Cable, Superflex, 50 Ohms

Monitoring Outputs

RF monitor

SMAfemale

(exciter)

1 PPS

BNC female

10MHz

BNC female

DVBT/DVBT2 / ISDBTb / CTTB Specification

Power Output (average)

1.2 kW to 10.8 kW (per rack), measured before mask filter

Systems

DVBT/H, standard EN 300744 DVBT2, standard EN 302 755 v1.3.1 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)

ASI/T2MI over IP (optional)

1 input, 100/1000BASET

(see chart below)

Crest Factor

13 dB maximum

Shoulder Level

<37 dB (before mask filter)

END

<0.5 dB

MER

>34 dB

Harmonics (before filter)

<40 dB

Central Carrier Suppression

>75 dB

DVBT2 Modes

Supports multiple PLPs, MISO, extended bandwidth mode, PAPR reduction, T2 Lite

ATSC Specification

Power Output (average)

1.8 kW to 69.7 kW models available, measured before mask filter (see chart below)

System

ATSC A53, 8VSB DTV standard, ATSC Mobile DTV

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

Spurious

Meets mask requirements specified in FCC 5th and 6th report and order

Sideband Performance

Compliant with FCC radiation mask, when measured at the output of GatesAir supplied
output filter

Remote Control

Parallel Remote

SubD connector

Ethernet/SNMP

RJ45, twisted pair

Antenna Requirements

Antenna Requirements

Compliance

RoHS 2002/95/EC
R&TTE 1999/5/EC
Safety: EN 60215

EMC: EN 3014891

Manufacturing: ISO 9001: 2008

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Maxiva ULXT Series Models and Power levels

# Racks

Transmitter
Model

(Rack
Size)

OFDM

Transmitter
Width

Transmitter
Height

Transmitter
Depth

Transmitter
Weight

ATSC

Pre-Filter Pre-Filter
Power

Power

RU

mm

in

mm

in

mm

in

kg

lb

Watts

Watts

ULXT-2xx

1(37)

600

23.6

1,809

71.2

1,161

45.7

238

524

1,200

1,800

ULXT-4xx

1(37)

600

23.6

1,809

71.2

1,161

45.7

276

608

2,400

3,600

ULXT-6xx

1(37)

600

23.6

1,809

71.2

1,161

45.7

314

693

3,600

5,400

U LXT-8xx

1(37)

600

23.6

1,809

71.2

1,161

45.7

404

890

4,600

7,200

ULXT-lOxx

1(37)

600

23.6

1,809

71.2

1,161

45.7

433

955

5,500

9,000

ULXT-12 xx

1(37)

600

23.6

1,809

71.2

1,161

45.7

472

1,040

7,000

10,600

ULXT-16xx

1(37)

600

23.6

1,809

71.2

1,161

45.7

591

1,302

9,000

14,200

ULXT-20xx

1(37)

600

23.6

1,809

71.2

1,161

45.7

709

1,564

10,800

17,700

ULXT-24xx

2(37)

1,162

45.8

1,809

71.2

1,161

45.7

840

1,852

13,400

21,100

ULXT-30xx

2(37)

1,162

45.8

1,809

71.2

1,161

45.7

999

2,202

16,100

26,300

ULXT-40xx

2(37)

1,162

45.8

1,809

71.2

1,161

45.7

1,445

3,186

21,400

35,100

ULXT-50xx

3(37)

1,727

68

1,809

71.2

1,161

45.7

1,721

3,795

26,500

43,400

ULXT-60xx

3(37)

1,727

68

1,809

71.2

1,161

45.7

1,998

4,404

31,800

52,100

ULXT-80xx

4(37)

2,324

91.6

1,809

71.2

1,161

45.7

2,890

6,372

42,300

69,700

xx = Modulation code:
AT ATSC

DV DVB-T

T2 DVB-T2

IS ISDBT

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