Like all our transmitters, this has a simple looking exterior, inside is another story. The 100 watt transmitter has a very high specification and is more than a match in technical quality to any of the other professional broadcast transmitters on the market at much higher prices. By not including frills and other gimmicks that don't improve the sound quality or reliability, we can make this transmitter at a price that is affordable. This and the previous model have been on the market for over 20 years !! and have endured countries of the world with the worst environments and the hottest climates and worked flawlessly without any problems.
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: email@example.com or ws: +1 829 6980733 and we're more than happy to advise you.
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 100 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.
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.
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.
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.
The regular version of this unit is 90 to 260V AC. However we can also manufacture it for 12V or 48V DC. To the best of our knowledge, in the entire world, Only We Make 12V DC FM Broadcasting Transmitters and Amplifiers up to RF Power Outputs of 250W.
Applications include mobile setups where only a car or vehicle battery is available. We have a perfect Magnetic Mount FM Antenna for mobile setups. Also fixed installations with connection to solar battery systems of 12V and 48V DC
We default ship the AC version. If you want the 12 or 48V DC version, it's important you notify us by email when you make your order.
This transmitter can be used with any of the following antennas:
• SINGLE DIPOLE
• 4.8dBi 2 DIPOLES
• 7.8dBi 4 DIPOLES
• 10.8dBi 8 DIPOLES
• 4.8dBi 5/8 ANTENNA
• CIRCULAR DIPOLE
• FOLDED DIPOLE
• MAG MOUNT
Our system package the 250W EIRP system includes this transmitter with a 2 way stacked dipole antenna and 20mt of 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.
This transmitter is FULLY PROTECTED and under severe load mismatch conditions (poor SWR, Return Loss) the amplifier will automatically foldback the power to a safe level to protect itself, the antenna and cables from damage. When the load becomes good, full power automatically restores. On the front panel is a neat little meter lit up with intense blue LED's to indicate forward and reflected power and a true frequency counter. The amplifier is fully protected from bad SWR and reflected power for any duration of time.
This unit is designed with high reliability in mind. The cooling system incorporates. Two 60 mm fans keep the heatsinks in this unit cool to touch by hand, even when we tested it in Spain in summer at ambient temperatures in excess of 40 deg C. To maintain long term RF Output reliability the linear power amplifier is fitted with a 150 watt Mosfet Device. Due to this design the 100 watt transmitter is capable of Non-Stop Operation anywhere in the world with high reliability.
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.
This transmitter is fully adjustable by a competent engineer to operate from 87.5 to 108 MHz, in 100 KHz steps, pre-emphasis of 50 or 75uS and adjustable power from 2 to 100W. Like all our transmitters, this is easily done by reconfiguring the dip switches on the under side panel. When we test this we have to set it to some frequency, we prefer it to be the one you choose, so please let us know your frequency.
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.
|Power Output||Adj. 1-100 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|
|Operating Temp||-20 to +40 Deg C|
|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|
|Audio Distortion||0.2% THD Max||0.2% THD Max (at MPX section)|
|Input Voltage||90-264 V AC 135-370 V DC 47-63 Hz|
|Input Power||200W for 100W 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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