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Maxiva™ UAX/UAXT Compact

The Maxiva™ UAX/UAXT Compact family of UHF solid-state transmitters, transposers/translators and gap fillers builds on the proven foundation of GatesAir low-power systems and PowerSmart® technology. It provides today’s digital broadcaster with a suite of compatible products to accomodate any coverage application, along with unmatched performance, reliability and quality. The Maxiva UAX/UAXT Compact extends the capabilities of the Maxiva series, providing one family of transmitters capable of satisfying any coverage architecture. The Maxiva UAX/UAXT Compact provides pre-filter power levels from 5 to 125W in a compact, space-saving 2RU package. Designed for digital broadcasting, the Maxiva UAX/UAXT Compact is a platform available in transmitter, transposer or SFN gap filler configurations for DVB-T/H, DVB-T2, ATSC, ATSC-MDTV, ISDB-Tb, CMMB and CTTB networks. The Maxiva UAX Compact is ideal for extending market coverage and filling in coverage gaps in challenging situations, including busy urban areas that require greater building penetration. The Maxiva UAX/UAXT Compact transmitters maintain the Maxiva M2X™exciter platform, providing broadcasters the highest level of performance and allowing fast setup time with Real Time Adaptive Correction (RTAC™). The shared modulation approach provides a common interface for Maxiva users, reducing training requirements. The Compact Class transposers/translators provide efficient and reliable re-broadcast of the received signal in a small and robust package. The gap filler configuration adds a powerful echo cancellation algorithm to deliver on-channel broadcast. This combination of products enables broadcasters to address any network coverage need.

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The Maxiva^™ UAX/UAXT Compact family of UHF solid-state transmitters, transposers/translators and gap fillers builds on the proven foundation of GatesAir low-power systems and PowerSmart^® technology. It provides today’s digital broadcaster with a suite of compatible products to accomodate any coverage application, along with unmatched performance, reliability and quality. The Maxiva UAX/UAXT Compact extends the capabilities of the Maxiva series, providing one family of transmitters capable of satisfying any coverage architecture. The Maxiva UAX/UAXT Compact provides pre-filter power levels from 5 to 125W in a compact, space-saving 2RU package.

Designed for digital broadcasting, the Maxiva UAX/UAXT Compact is a platform available in transmitter, transposer or SFN gap filler configurations for DVB-T/H, DVB-T2, ATSC, ATSC-MDTV, ISDB-Tb, CMMB and CTTB networks. The Maxiva UAX Compact is ideal for extending market coverage and filling in coverage gaps in challenging situations, including busy urban areas that require greater building penetration.

The Maxiva UAX/UAXT Compact transmitters maintain the Maxiva M2X^™exciter platform, providing broadcasters the highest level of performance and allowing fast setup time with Real Time Adaptive Correction (RTAC^™). The shared modulation approach provides a common interface for Maxiva users, reducing training requirements.

The Compact Class transposers/translators provide efficient and reliable re-broadcast of the received signal in a small and robust package. The gap filler configuration adds a powerful echo cancellation algorithm to deliver on-channel broadcast. This combination of products enables broadcasters to address any network coverage need.

Power levels from 5 to 125W (pre-filter)
Broadband, frequency agile design – UHF 470 to 862 MHz
Built-in GPS option for Single Frequency Network (SFN) support
Compact, space-saving, 2RU design
Full remote control capability including:
- Web-based HTML GUI interface
- SNMP
- Parallel control/monitoring

Transmitter:

Dual transport stream inputs with manual/auto switching
Real-Time Adaptive Correction (RTAC)
DVB-T/H, DVB-T2, ATSC, ATSC-MDTV, ISDB-Tb, ISDB-Tb with remultiplexing/restamping option, CMMB and CTTB modulations available

Transposer/Translator:

Supports for all COFDM and ATSC standards
Digital, tunable RF input filter

SFN Gap Filler:

Powerful adaptive echo cancellation with up to 15 dB gain margin for exposed stations and difficult situations
Very low processing delay, ideal for short guard intervals in COFDM
Digital IF filter for maximum adjacent channel suppression
Digital, tunable RF input filter

Specifications and designs are subject to change without notice.

General
RF Output Frequency Range	UHF Band IV/V, 470 to 862 MHz
Transmission Standards	ATSC; DVB-T ; DVB-T2; ISDB-Tb; CTTB
RF Channel Bandwidth	6, 7, or 8 MHz (ATSC 6 MHz only)
Rated Output Power	Up to 125 Watts (before mask filter)
Output Power Reduction Range	0 to -10 dB

Inputs/Outputs
RF Output Connector	1 x Type N Female, 50 ohms, rear access
RF Input Samples for Adaptive	1 x SMA, 50 ohms; dynamic range: -20 to +10 dBm, rear access
Transport Stream Inputs	2 x BNC, 75 ohms terminated (50 ohms connector per ASI rec.), configurable as SPMTE 310M, DVB-ASI, or DVB-T2MI 2 x BNC, 75 ohms terminated (50 ohms connector per ASI rec.), additional for DVB-ASI hierarchical modulation
10 MHz Reference Input	1 x BNC, 50 ohms, rear access, -7 to +20 dBm, <20 dB return loss
1 PPS Reference Input	1 x BNC, 50 ohms, rear access
10 MHz Reference Output	1 x BNC, 50 ohms, front access
1 PPS Reference Output	1 x BNC, 50 ohms, front access
Ethernet	1 front, RJ-45, customer access 1 rear, RJ-45, DHCP enabled network interface (SNMP)
Parallel Remote Control	1 rear user remote
GPS Antenna Input	1 x SMA, 50 ohms, rear access (optional)
RF Monitor Output	1 x SMA, 50 ohms, front access

AC Power
AC Power Input	110 to 230 V AC, auto-ranging, ±15%, 47 to 63 Hz
Power Factor	>0.96 (typical 0.98)

Environmental
Operational Temperature Range	0° to 45° C (32° to 113° F)
Storage Temperature Range	-40 to +70° C
Relative Humidity	0 to 95%
Altitude	Up to 4,000 m (13,100 ft) above sea level, derate 2° C (3.6° F) per 300 m (984 ft) of elevation
Cooling Method	Forced air-cooled, internal fans, airflow front to rear
Acoustic Noise	≤65 dBa (front 1 m)
Physical Dimensions (H X W x D)	2RU x 19 x 23 in. (44 x 483 x 584 mm)
Weight	24.7 lbs (11.2 kg)
Shipping Weight	30.0 lbs (13.6 kg)

Compliance
RoHS 2002/95/EC R&TTE 1999/5/EC Safety: EN 60215 EMC: EN 301-489-1 FCC Part 73, A/53 , A/110 DVB-T: ETSI EN 300 744 DVB-T2: ETSI EN 302 755 Rusia GOST Brazil ANATEL CE Marked

COFDM Transmitter Performance
RF Power Stability	±0.5 dB
RF Load Impedance	50 ohms
Operating Load VSWR	Up to 1.4:1 at full power
Maximum VSWR	Protected against open or short circuit, all phase angles. Automatic VSWR foldback with user adjustable threshold. Factory pre-set to 1.4:1
Shoulder Level	<-42 dB (typical <-50 dB)
MER	>37 dB (typical >40 dB)
END (per ETR 290)	≤0.5 dB
Frequency Stability	±150 Hz/month without PFC/GPS (2.3 x 10-7)
Internal GPS	Option
GPS Back up Time	18.4 hours (maximum time drift 12.4 μS) 10° C variation day/night
Transmitter Processing Delay	Programmable up to 1 second maximum delay
Frequency Offsets	1 Hz increments
Input Bit Rate	DVB-T: 4.976 to 31.668 Mbit/s DVB-T2: up to 50.28 Mbit/s ISDB-Tb: Per standard
Response Variation	0.2 dB, typical across channel
Phase Noise	10 Hz <-55 dBc/Hz 100 Hz <-85 dBc/Hz 1 kHz <-90 dBc/Hz	10 kHz <-95 dBc/Hz 100 kHz <-112 dBc/Hz 1 MHz <-130 dBc/Hz
Spurious Output	<-60 dBc (after mask filter)
Harmonics	<-60 dBc after mask filter, <-35 dB before mask filter
Spectrum Mask	Per standard. Filters for critical and non-critical mask available
Central Carrier Suppression	>75 dB relative to average power
Intermediate Frequency (IF)	140 MHz

ATSC Transmitter Performance
RF Power Stability	±0.5 dB
RF Load Impedance	50 ohms
Operating Load VSWR	Up to 1.4:1 at full power
Maximum VSWR	Protected against open or short circuit, all phase angles Automatic VSWR foldback with user adjustable threshold Factory pre-set to 1.4:1
Shoulder Level	<-42 dB (typical <-50 dB)
EVM	<2%
SNR	>34 dB (typical >37 dB)
Frequency Stability	±150 Hz/month without PFC/GPS (2.3 x 10-7)
Internal GPS	Option
GPS Back up Time	18.4 hours (maximum time drift 12.4 μS) 10° C variation day/night
Transmitter Processing Delay	Programmable up to 1 second maximum delay
Frequency Offsets	1 Hz increments
Input Bit Rate	19.39 Mbit/s
Response Variation	0.2 dB, typical across channel
Phase Noise	<-104 dBc/Hz @ 20 kHz offset (ATSC A/64)
Spurious Output	Meets FCC 5th and 6th report and order
Spectrum Mask	Per ATSC standard
Intermediate Frequency (IF)	140 MHz

Transposer and Gap Filler (COFDM & ATSC)
Power Output Stability	±0.5 dB
RF Load Impedance	50 ohms
Operating Load VSWR	Up to 1.4:1 at full power
Maximum VSWR	Protected against open or short circuit, all phase angles Automatic VSWR foldback with user adjustable threshold Factory pre-set to 1.4:1
RF Input Frequency Range	Band III 168 to 242 MHz, or Band IV/V 470 to 862 MHz
RF Input	SMA-Female, 50 ohms, rear access
RF Input Level	-70 dBm to -10 dBm
Maximum Input Level	0 dBm
Adaptive Echo Cancellation	Standard (applies to Gap Filler only)
Gain Margin	COFDM: -12 dB minimum, -15 dB typical ATSC: 0 dB
Adjacent Channel Rejection	>35 dB
Internal Transit Time	<6 µS
Echo Window Size	5 µS
Echo Window Offset	1.5 to 448 µS
Static Delay	0 to 400 µS in steps of 100 µS
MER	Up to 34 dB, dependent on input
MER Degradation	<2 dB degradation referenced to input, at <34 dB input MER
Response Variation	0.2 dB, typical
Spurious Output	<-60 dBc (after mask filter)
Harmonics	<-60 dBc after mask filter, <-35 dB before mask filter

UAX Compact Power Levels

Digital Models (xx =modulation)	Power Before Filter (Watts)	Power After Filter (Watts)	RF Output Connector	Total Rack Space
UAX-5xx-C	8	5	“N” Female	2RU
UAX-10xx-C	15	10	“N” Female	2RU
UAX-25xx-C	33	25	“N” Female	2RU
UAX-50xx-C	65	50	“N” Female	2RU
UAX-80xx-C	100	80	“N” Female	2RU
UAX-100xx-C	125	100	“N” Female	2RU

Modulations
AN – Analog
AT – ATSC
DV – DVB-T
T2 – DVB-T2
IS – ISDB-Tb
IR-ISDB-Tb with remultiplexing/restamping option