Flexiva HPX™
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The Flexiva HPX™ series is the next generation in high-power transmission for FM analog and HD Radio™ broadcasting. The Flexiva HPX series covers a range of power levels, with three models offering nominal FM power of 20 kW, 30 kW and 40 kW in a single configuration, and up to 80 kW in a dual configuration.
With the most flexible control system available in the market, the Flexiva HPX transmitter has a unique combination of dedicated meters and control circuits for rock-solid and simple control, coupled with an optional user-friendly remote monitor and control system that features a color GUI.
In terms of dollars-per-watt, the Flexiva HPX tube-based transmitter outperforms all solid-state transmitters in the same class. Operators can realize a significant savings in cost of ownership over the lifetime of the transmitter, including regular tube replacement.
The Flexiva HPX transmitter provides a smooth upgrade path to HD Radio. Simply add the FlexStar® HDx exciter and the HDE-200 exporter for the latest in HD Radio signal generation, and if desired, the HDI-200 importer will complete the portfolio with supplemental audio channels and other advanced applications data services.
GatesAir provides everything needed to transition to digital radio — from source through studio through STL through transmission. And we have a systems team available to help put together a package that makes the most sense for any operation — now and in the future.
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The Flexiva HPX high-power FM transmitters feature:
- Fully integrated RF and control interface with FlexStar® exciters
- The FlexStar HDX exciter is the source of both the HD Radio signal and the conventional analog FM signal — in a single unit. This exciter creates a hybrid signal ready for amplification by the transmitter
- High-voltage power supply can be remotely located from the transmitter to fit even the tightest transmitter sites
- Basic transmitter controller provides critical life support, control, automatic exciter switching and diagnostic functions on MIMIC panel without reliance on a microprocessor
- Advanced transmitter controller option combines basic controller functionality and life support with a microprocessor and ¼ VGA GUI for advanced control and diagnostics including TCP/IP connectivity, WEB remote control and monitoring, and SNMP communications
- IPA stage uses the field-proven Z/ZX® hot-pluggable PA modules and power supplies with the option for redundancy
- ¼ wave grounded cathode design offers stability and efficiency
- Ability to bypass PA stage using Flexpatch to put exciter and/or IPA directly to air, with blower shut down. No user safety issues while servicing PA cavity
- Backed by broadcasting’s most extensive factory support, including 24-hour technical assistance, around-the-clock parts and comprehensive training
System
- High-power FM/FM+HD tube-based transmitter with nominal nameplate (FM) power output rating based on three models of 20 kW, 30 kW and 40 kW
Mechanical
- Solid, welded-steel exterior cabinets; aluminum inner skins and chassis
- Hinged rear doors for normal access, easily removed for maintenance or installation activities
- Major access panels are securely latched with a supplied hex head tool for quick, safe access
- Top- or bottom-entry locations for all cabling
Cooling
- Direct drive 3-phase blower in main PA cabinet
- High-efficiency flushing fans
RF Drive
- Requires only 30 W (analog) exciter
- Fully integrated RF and control interface with FlexStar exciters
- IPA stage uses the field-proven Z/ZX PA modules
- Higher-power models employ two modules, providing redundancy
- Lower-power system can employ optional main/backup IPA
- IPA modules are replaceable from the front of the transmitter
Power Amplifier Stage
- Common tube socket for all models; 4CX20,000C
- ¼ wave grounded cathode design offers stability and efficiency
- Ability to bypass PA stage using Flexpatch to put exciter and/or IPA directly to air, with blower shut down. No user safety issues while servicing PA cavity
Controller
- Basic transmitter controller provides critical life support, control, automatic exciter switching and diagnostic functions on MIMIC panel without reliance on a microprocessor
- Enhanced transmitter controller option combines the basic controller functionality and life support with a microprocessor and ¼ VGA GUI for advanced control and diagnostics including TCP/IP connectivity, WEB remote control and monitoring, and SNMP communications
- Four large front-panel analog meters: Forward/Reflected power, PA volts, PA amps and multimeter for other operating parameters
Power Supplies
- High-voltage, 3-phase linear supply with primary/secondary MOV protection; half tap on transformer and multiple voltage taps; some model upgrades may be accomplished with only change in HV transformer
- Rugged, reliable mains transformer provides worry-free performance, easy to tap for specific installation requirements
- Low-voltage control and IPA use switching supplies from field-proven ZX products, reducing spare parts costs
Specifications and designs are subject to change without notice.
Maximum Power Output | HPX20 | HPX30 | HPX40 |
FM Mode | 21 kW | 31.5 kW | 42 kW |
FM+HD -20 dBc | 21 kW | 26.5 kW | 31.5 kW |
FM+HD -10 dBc | 15 kW | 16 kW | >17 kW* |
HD Mode -20 dBc | 8.4 kW | 9.4 kW | 9.6 kW |
HD Mode -10 dBc | 6.1 kW | 6.8 kW | 7.0 kW |
Minimum Overall | HPX20 | HPX30 | HPX40 |
AC to RF Efficiency | HPX20 | HPX30 | HPX40 |
FM Mode | 66% | 68% | 70% |
Typical Overall | HPX20 | HPX30 | HPX40 |
AC to RF Efficiency | HPX20 | HPX30 | HPX40 |
FM Mode | 68% | 70% | 72% |
FM+HD -20 dBc | 58% | 61% | 62% |
FM+HD -10 dBc | 40% | 41% | 42% |
Ambient Temperature | |
Output Impedance | 50 ohms |
Output Connector | 3-1/8 in. EIA or 4-1/16 in. male flange |
Maximum VSWR | 1.5:1 for 100% power output with proportional foldback |
Input Voltage | 50-60 Hz, 197 to 250 V AC, 3 phase, 3-wire closed Delta or WYE — 250 amperes max or 360-415 V AC 4-wire WYE — 125 amperes maximum |
Input Voltage Variation | ± 5% for full specification, +10%, -15% for continued operation |
Power Factor | 0.95 |
Maximum Altitude | 10,000 ft (3,048 m) high-altitude/high-power cooling kit required above 7,500 ft (2,286 m) MSL |
Analog FM Mode | 32° to 122° F (0° to 50° C); derate 3.6° F (2° C) for each 1,000 ft (304.8 m) elevation |
Humidity | 95% non-condensing |
RF Harmonics/Spurious | |
Emissions | Meet or exceed FCC, NRSC, ITU and IC requirements |
Asynchronous AM S/N Ratio | 55 dB below equivalent 100% AM modulation |
Synchronous AM S/N Ratio | 52 dB below equivalent 100% AM modulation |
Other Audio Specifications | Determined by exciter |
Dimensions (W x D x H) | 2 cabinets, each 32 x 35 x 78 in. (81 x 88.9 x 198.1 cm); Main PA cabinet contains 13RU of 19 in. rack space for dual exciters and ancillary equipment |
Standards Compliance | NRSC-5B or most current HD Radio standard; FCC, Industry Canada, Anatel (Brazil); RoHS-compliant design and manufacturing; Safety EN60215 |
*Maximum power currently 17 kW at -10 dBc with existing Crest Factor Reduction techniques. Improvements in efficiency and PAPR control within the FlexStar exciter indicate that an increase of 1-1.5 dB (23 kW max) available output power at -10 dBc is anticipated. |