Maxiva™ IMTX-70

Low Power UHF Intra-Mast Transmitter / Transposer / Gap Filler

OVERVIEW

GatesAir’s acclaimed Maxiva™ IMTX-70 intra-mast / rack-mounted compact transmitter is a sophisticated, modular multi-transmitter system renowned for its versatility and efficiency. Designed for seamless integration into shared transmitting infrastructures, it fits effortlessly within standard 19-inch racks and shelters. Its scalable architecture makes it ideal for a wide range of applications, including small community gap fillers, translators, tunnel transmissions, internal building coverage, and challenging environmental locations, delivering reliable performance across diverse broadcasting needs.

The dimensions of the Maxiva IMTX-70 chassis are key to this unique design; it measures only 9.5RU or 4RU in height and fits in a convenient standard 19” equipment rack. Cooling is provided by fans forcing air from front to back of the transmitter system, supported by natural air convection within the structure or cabinet itself. Its versatile transmitter design makes the most of difficult locations and environments, like in a monopole mast.

Although extremely compact in size, the Maxiva IMTX-70 boasts many features normally found in full-size systems, including the capability of housing up to eight separate transmitter modules, each with up to 70W of average DTV power pre-filter. Each module can be configured as a transmitter, translator, or on-channel gap-filler with echo-cancellation. A DVB-S/S2 satellite receiver option is also available as well as GbE (TS over IP), ASI, T2MI, and SMPTE-310M inputs. Digital modulations are supported including ATSC 1.0, DVB-T, DVB-T2, and ISDB-T. For ISDB-T/Tb applications, an embedded Re-Multiplexer and Layer Combiner/TS to BTS can be included.

The RF output stage is a high-efficiency Doherty broadband amplifier for energy savings and minimal waste heat. Maxiva IMTX provides multiple redundant power supplies. Remote control includes SNMP and a Web interface.

Main Features of Maxiva™ IMTX-70

Compact chassis: 9.5RU or 4 RU height, 19” standard rack, 330 mm depth
Up to 8 separate transmitter modules in a 9.5RU 19” rack mountable chassis
1+0, 1+1 (Main / Alt) or 2+0 configuration in the 4RU 19” rack mountable chassis
Output power: Up to 70W rms per module (pre-mask filter)
Input interface options for each module:
- ASI, T2MI, BTS, & SMPTE-310M
- TSoIP Gbe port (TS over IP)
- DVB-S/S2 Satellite Receiver input (including CAM interface)
- RF receiver input for Transposer/Gap-Filler configuration (Direct Conversion – zero IF)
- Regenerative receiver input option for Transposer
Supports DVB-T/H, ISDB-T/Tb, DVB-T2, ATSC 1.0 modulations
Embedded Re-Multiplexer/Layer Combiner/TS to BTS (188 to 204 byte) converter for ISDB-Tb
Adaptive pre-correction circuits
Display and buttons available in the 1+0, 1+1 and 2+0 version
High stability GPS / GLONASS receivers with battery
Dedicated power supply for each module and optional hot swappable redundant power supply
SNMP, Web Interface and Touch Screen display
10MHz, 1PPS and GPS Embedded for SFN Operations

Main Features of Maxiva™ IMTX-70

Compact chassis: 9.5RU or 4 RU height, 19” standard rack, 330 mm depth
Up to 8 separate transmitter modules in a 9.5RU 19” rack mountable chassis
1+0, 1+1 (Main / Alt) or 2+0 configuration in the 4RU 19” rack mountable chassis
Output power: Up to 70W rms per module (pre-mask filter)
Input interface options for each module:
- ASI, T2MI, BTS, & SMPTE-310M
- TSoIP Gbe port (TS over IP)

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