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1kW Professional FM Radio Transmitter



1kW Professional FM Radio Transmitter. Overview
5 Years! Warranty
5 YEARS
LIMITED WARRANTY
MORE INFORMATION

Inc. Delivery to UNITED STATES


This 1kW transmitter has it all!! high power, CE compliance, RDS, stereo and audio processing. But the best feature of of this transmitter is none of these, the best feature is that it is BUILT to LAST. 1kW is high power and with the right antenna, for example an 8 way stacked dipole, and high ground it could propagate a signal up to 100km. Our 10kW EIRP system is a fine example of this.



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.



Stereo, RDS and Audio Processing Version


1KW FM STEREO TRANSMITTER WITH PROCESSING AND RDS (1000wpllsl19p)
US$ 3306

If you are not sure which version you want, then you definitely need this version. It is perfect for beginners because it adjusts the audio levels automatically and keeps the 1000 watt transmitter within the legal specifications required by the state regulator.

This version is also ideal for professionals who just don't need the all the hassle. This is because it includes everything in one enclosure. The audio processing keeps the audio level 'LOUD', but not too loud whereby it causes over deviation and contravenes your permit. The trick is to get the sound as loud as possible so you can compete with the other stations on the dial, but at the same time keeping your signal legal. This is a tricky balance to maintain, but this version in stereo with our internal audio processers does exactly this.


1kW Professional FM Radio Transmitter Stereo Audio and Processing

In addition, this version INCLUDES RDS. This allows everybody to see your station name and more scrolling across the car radio display.

The RDS is not just ordinary RDS, it is fully programmable dynamic RDS. This means the transmitter can be connected to a PC by a USB cable. The transmitters RDS circuit will pick the Artist and Song name from any folder on the PC disk drive. This folder is easy to set up in the DJ playout software, like Zara Studio etc. You can find more information about this in the Aareff RDS User Manual.



MPX Version


1kW FM TRANSMITTER WITH MPX COMPOSITE INPUT (1000wpll19p)
US$ 3018

This is for expert users who want to provide the MPX signal from an external source.

The PLL is slow locking, this is good as it maintains low frequency performance down to just a few Hertz. This low frequency response is heaven for processors.

The baseband MPX audio input has virtually no tilt whatsoever on the low bass frequencies making it perfect for use with multiband processors such as Orban, Invonics, Stereo Tool, Omnia etc. Check the image of the test we made in MpxTool.


1kW Professional FM Radio Transmitter MPX 160Hz Tilt Test with MPX Tool


Antennas

The transmitter will work with any 50 ohm antenna rated at 1000W or higher. Suitable antennas that we sell for this unit are:

    • Vertical 5/8 Wave
    • 4 Way Stacked Dipole
    • 8 Way Stacked Dipole
    • Circular Dipole
    • Folded Dipole

Our 2.5kW, 5kW and 10kW EIRP packages include this transmitter packaged in with coaxial cable and a suitable antennas. These full systems are engineered to comply with the EU standards and regulations for licensed broadcasting and most other countries regulations in the world.



Temperature Resilience

The power output of this model is 1kW continuous day and night non stop 24/7. It has reflected power protection and it has over temperature protection. In the event of any of these protections being activated, the power will reduce to a safe level to prevent any damage. When the fault that triggered the protections clears, the power restores automatically back to full.



VSWR Resilience

Under severe load mismatch conditions (poor SWR, Return Loss) the unit automatically folds back the power to a safe level to protect itself, the antenna and cables from damage. When the load becomes again, full power restores automatically and instantly. The front panel has a forward and reflected power meter, so you can monitor the state of your antenna all the time.



Construction

The complete 1kW transmitter is made up of one 3U enclosure and one 2U enclosure in strong 16-gauge steel, powder coated and baked in satin black. This type of metalwork can withstand the middle of a warzone and is military grade. The powder coating gives a difficult to scratch surface preventing the bare metal being exposed and corrosion. The front panels are standard 19 inches for standard racks.



Frequency, Power and Deviation

The frequency and power level is easy to change, but not so easy that somebody with no experience can just press a button on the front, that would be too easy and dangerous. We reached a compromise with this, we placed these controls on the underside of the unit. To get to them, just slide the unit out of the rack, flip it over and the little dip switches will allow you to change the frequency and a trim pots for the power and deviation level.



Compliance

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

User Manual



RF Specification

All stated measurements were made at 220VAC at 27 Deg. Celsius ambient temperature unless stated.

Power Output Adj. 1-1000 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-716
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 0.2% THD Max 0.2% THD Max (at MPX section)


AC Specification


Input Voltage 90-264 V AC 135-370 V DC 47-63 Hz
Input Power 1400W for 1000W 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







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