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30W Professional FM Radio Transmitter



30W Professional FM Radio Transmitter. Overview
5 Years! Warranty
5 YEARS
LIMITED WARRANTY
MORE INFORMATION

Inc. Delivery to UNITED STATES


Suitability

This 30W transmitter is a still a worldwide favorite which has been on the market since 1999, it's reliable, it's durable and long lasting, even after 20 years there are various clients in the world still using this model for their community stations. This power level is suitable for a small town.



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


30W FM STEREO TRANSMITTER WITH RDS AND AUDIO PROC. (30wpllsl19p)
US$ 1225

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 30 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.


30W 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.



Super Silent ADDED Option

What is SUPER SILENT? it means it's as quiet as a mouse and can use it in a live mic studio without background noise. The video demonstrates the 100 watt transmitter, but it is exactly the same for the 30 and 50 watt units.

If you want SUPER SILENT option, MAKE SURE YOU ADD IT AS AN OPTION in the price panel below.

SUPER SILENT means less 20dBA, this is comparable to a low level whisper in a studio, the chances are other equipment, air con or studio ventilation is higher in volume.

Super Silent Transmitter YouTube Banner Image

SUPER SILENT (<20dBA) STUDIO MIC FRIENDLY OPTION (s-silent)
US$ 86.05


MPX Version


30W FM COMPOSITE MPX INPUT TRANSMITTER (30wpll19p)
US$ 897.75

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.


30W Professional FM Radio Transmitter MPX 160Hz Tilt Test with MPX Tool


Antennas

On delivery the equipment is ready to plug in and use with any suitable 50 ohm antenna system such as our:

    • SINGLE DIPOLE
    • 4.8dBi 2 DIPOLES
    • 7.8dBi 4 DIPOLES
    • 10.8dBi 8 DIPOLES
    • 4.8dBi 5/8 ANTENNA
    • -0.8dBi CIRC. DIPOLE
    • FOLDED DIPOLE

Our system package the 30W EIRP system includes this transmitter with a dipole antenna and very low loss LMR400 cable to give you a full system that will comply with the regulations of the European Union and most other countries in the world.



Reliability

The output transistor can handle any amount of reflected power comfortably with a a rating of 45 watts on a more than sufficient large heatsink for cooling



Construction

The enclosure is made in strong 16 gauge steel, powder coated and baked in satin black. This leaves a tough, durable surface that will never rot or corrode and be cleaned to shine for decades. The front panel is 19 inch across and 2U (3.5 inch) high with a depth of 12 inches, so it will fit with ease into a standard rack. It is very strong and difficult to damage even under extreme handling.





Configuration

When we test this unit we need to test it at some frequency, it's obviously better if we test it at the frequency you want to us it on, then you can use it straight out of the box on delivery. But if you don't know the frequency, that's okay, the frequency, FM deviation and power is easy to set in a few minutes on the underside panel controls.



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. 1-30 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 N-Female
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 60W for 30W 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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