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2kW Professional FM Radio Transmitter
- 2000 WATTS RF OUTPUT
- STEREO WITH AUDIO PROCESSING
- DYNAMIC RDS OPTION
- 48VDC or 90-260VAC OPTION
- USB 192 KHz 24 bit OPTION
- INCLUDES SHIPPING
- 5 YEAR WARRANTY
- EXCEEDS CE/FCC TECHNICAL SPEC.
- MODULAR 1kW + 1kW LDMOS DESIGN
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LIMITED WARRANTY |
Fully modular 1 kW + 1 kW for maximum reliability and flexibility. For the maximum power of 2kW both amplifiers run simultaneously, if you want to service or clean one of the amplifiers, the remaining one will stay on air keeping the listeners and advertisers happy using half power. This modular 2kW transmitter comes complete with exciter, Wilkinson splitter and high powered combiner. Standard 19 inch heavy steel black powered coated enclosures built to last!!!.
Which Version Do You Need?
These are the two main versions of this transmitter:
◼ Stereo with RDS and Audio Processing Version
◼ MPX Version
These two versions cover 90% of all customer requirements. Other custom versions are available such as stereo only, no RDS, no processing etc. which we can also make if that's what you require.
You will find these two main versions shown in detail in the two following sections with descriptions of what they do and how they work. You should also see the price, INCLUDING delivery, to your country.
If you are still unsure, you are always welcome to contact us at em: info@aareff.com or ws: +1 829 6980733 and we're more than happy to advise you.
Do You Have A Question?
Stereo, RDS, and Audio Processing System
If you're unsure which version suits your needs, this is the recommended choice. It automatically manages audio levels, ensuring that your 2000 watt transmitter remains compliant with state regulatory requirements. This makes it an excellent option for beginners.
Even professionals who prefer a hassle-free setup will benefit from this version. Everything is neatly contained in a single enclosure, and the integrated audio processing optimizes loudness while maintaining compliance with legal limits. This ensures that your signal remains strong and competitive without exceeding deviation limits. Striking this balance is essential, and this stereo version with built-in processing achieves it effortlessly.
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The audio inputs follow industry standards: 600 ohm +4 dBu balanced, using XLR connectors for professional-grade connections.
Additionally, this version comes with built-in RDS, allowing listeners to see your station name and other dynamic messages on car radio displays.
This is not just standard RDS—it features fully programmable dynamic RDS. By connecting the transmitter to a PC via USB, you can update RDS data in real time using the USB PC CONTROL function shown below.
Flat 30Hz to 76KHz MPX Input
We have this version available for Users with experience that prefer straight raw MPX input.
Low frequency audio response is the holy grail for multiband audio processors, they need it.
As you can see from the image, the 160Hz square wave is very square with no tilting making it perfect for use with Orban, Inovonics, Omnia, Stereo Tool and other commercial audio processors.
This setup uses a Hartley-based, lightly coupled push-push VCO that exhibits extraordinary stability, to the point where it deviates by less than 10 kHz from its designated frequency on its own, even when the DSS and PLL are switched off.
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Because this VCO is so inherently steady, the PLL only has to make minor corrections to maintain the frequency within about 300 Hz, effectively just giving it a slight nudge. Consequently, the audio remains very clean, as noted previously, and the PLL’s control voltage can be heavily low-pass filtered to just a few hertz. Such a slow loop filter ensures that low frequencies around 30 Hz are not misread as frequency drift, passing unaltered to the varicap. This preserves the essential low-end audio response needed for high-performance audio processors.
Stock Code: 2000wpll19p. Email or WS for the price
Download our free PC app that connects 'plug and play' to the transmitter / PLL DDS exciter via USB. You can see the PLL status and change the frequency and power directly from the PC interface. If you choose to add the optional RDS card, you can also change the PI, PTY and scrolling text of the radio from the interface.
Below are the download links for Windows:
By clicking on these links, Windows may show you a warning that the software is from an unknown publisher. We assure you that we wrote the apps and the files are perfectly safe, virus-free and come from our registered domain www.aareff.com, which you can verify at https://lookup.icann.org/en/lookup
Normal state when the device is connected: the PLL is LOCKED with an output power of 0.85W and a PLL phase of 2.33V This shows what happens if the device loses its lock. We simulated a failure by placing our fingers on the oscillator coils. This shows the return to normal with the user command FREQ:106.7 typed in the input box below. A value between 87.5 and 108.0 MHz can be set. After pressing 'Send:' the display returns UPDATED FREQ 106.7 along with other technical information. This causes the transmitter to change frequency. This shows another command, RDS-PI:ABCD typed for devices with the RDS card. After pressing 'Send': the display returns UPDATED RDS-PI:ABCD instantly updating the RDS PI code. This shows two additional examples of RDS commands:
Shown below are the current commands available for USB PC Control and also the PTY codes for program type. We will be making further developments, improvements and more useful commands to this app in the near future. Keep checking this page for details.
◼ DEVICE-ID The transmitter will work with any 50 ohm antenna rated at 2000W or higher. The following antennas when used with this 2kW transmitter will radiate (EIRP) the approximate power shown.
• Vertical 5/8 Wave 5kW EIRP Our 25kW EIRP system
includes this transmitter packaged in with coaxial cable and a suitable antenna system. These full systems are engineered to comply with the EU standards and regulations for licensed broadcasting and most other countries regulations in the world. The 2kW transmitter package uses two large amplifiers enclosures which spread the waste heat over a larger area. Spreading the heat this way improves long term reliability over compact type models simply because there are no concentrated hot spots which always lead to faster failure. This generally doubles the lifetime reliability over the equivalent compact type model. In addition to this there is active temperature monitoring which in worse case scenario will reduce the power automatically to protect the unit if the ambient temperature is extreme at over +40C.
The final output section of the 2kW transmitter is two RF amplifiers using two BLF188XR, the XR means 'eXtremely Rugged' These LDMOS RF power transistors are designed for the most challenging engineering environments and withstand severe load mismatches at VSWRs greater than 65:1 at 5 dB of compression. Two BLF188XR's can actually provide a combined CW output of 3200 W whilst still passing extreme ruggedness testing. For ultra reliability we just keep the output at 2kW total maximum. It can be set at lower power levels, right down to 20W if required.
The complete assembly is made up of two 3U enclosures and one 2U enclosure in strong 16-gauge steel, powder coated and baked in satin black. This is military grade strength, not flimsy thin paneling that eastern countries make. The whole thing tough with a durable surface that will never rust and will shine for years. The front panels are 19 inches so they will fit with ease into a standard rack. If you are qualified or understand broadcast radio specifications and parameters you can set the frequency and deviation yourself. This is easily done by flipping over the unit and adjusting the little dip switches on the underside panel. More information on this in the User Manual, you can find a link to this below. The stereo version with audio processing and limiting meets all the regulatory standards required out of the box and pre configured. In fact if you send us a copy of your permit and it's conditions, we will set it up exactly to the specification. This equipment complies with EU/CE harmonised standards and FCC technical requirements for FM broadcasting. More information HERE All stated measurements were made at 220VAC at 27 Deg. Celsius ambient temperature unless stated.
USB PC/RDS CONTROL
https://www.aareff.com/1wpllm/pll14.4/pll14.exe
https://www.aareff.com/1wpllm/pll14.4/pll14.zip
RDS-TEXT:[write your message here]
RDS-PTY:[number from 0 to 31]
Text is plain ASCII up to 60 chars and valid PTY Codes shown below.
◼ STATUS
◼ FREQ:[87.5 to 108.0]
◼ DDS-ADJ:[-1,0 or 1]
◼ PWR:[0 to 1]
◼ RDS-PTY: [0 to 31 list of PTY codes]
◼ RDS-PI: [0000 to FFFF]
◼ RDS-TEXT:[any string up to 60 chars.]
◼ RDS-ON
◼ RDS-OFF
Antennas
• Circular Dipole up to 10kW EIRP
• Folded Dipole up to 25kW EIRP
Temperature Protection
VSWR Protection
Construction
Settings
Compliance
RF Specification
Power Output Adj. 1-2000 Watts into 50 ohms Spurious Emissions Less than -75 dB ref to carrier Harmonic Emissions Less than -70 dB ref to carrier Freq Stability +/- 1 KHz max. typ. +/-300 Hz Deviation Sensitivity Stability +/-2 % max Freq Fine Adj > +/- 1000 Hz Freq Range 87.5 to 108 MHz in 100 KHz steps Out of Lock RF Muting Less than -70 dB ref to carrier Residual AM Less than 0.5 % Synchronous AM Less than 0.5 % RF Ruggedness Any VSWR phase or length of time Output Connector DIN 7-16 Operating Temp -20 to +40 Deg C
AF Specification
Pre-emphasis (50 uS/ 75 uS/ None) Selectable Audio Input Connector Phono/ RCA type unbalanced sockets Audio Input Sensitivity +4 dBu for +/- 75 KHz dev.
Version MPX Stereo and Audio Processor Signal To Noise Ratio 80dB 65dB Frequency Response 30Hz-76KHz 30Hz-15KHz Audio Distortion Better than 0.1% / 60dB THD Better than 0.1% / 60dB THD
AC Specification
Input Voltage 90-264 V AC 135-370 V DC 47-63 Hz Input Power 3000W for 2000W RF OUT with RF SWR less than 1.5 Working Humidity 20-90% RH non-condensing Safety Standards UL60950-1 TUV EN60950-1 BSMI CNS14336 CCC GB4943 J60950-1 approved EMC Emission Compliance to EN55022 class B EN61000-3-2 3 FCC PART 15 / CISPR22 class B CNS13438 class B GB17625.1 EMC Immunity Compliance to EN61000-4-2 3 4 5 6 8 11 light industry level criteria A
