Constructed in a 16 gauge steel black powdered coated enclosure, this unit is built to last!! for long time! The audio processor version with RDS has true transformer balanced inputs that eliminate any possible ground loops and hums from the audio keeping it clean and noise free. This ideal for that station that needs quite a bit of power, but doesn't need complications, just one enclosure with everything taken care of. If 600 watts is too much, the power can be adjusted to be anything between 600 watts and virtually zero watts.
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: firstname.lastname@example.org 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 600 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.
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.
The transmitter will work with any 50 ohm antenna rated at 600 watt or higher. The following antennas when used with this 600 watt transmitter will radiate (EIRP) the approximate power shown.
The 600 watt as with all our transmitters feature variable and linear temperature protection, this means it just doesn't shutdown when it gets hot, instead the power backs of gently to prevent the internal heatsink exceeding 70C. This will only occur if the ambient temperature exceeds 40C, the fans and vents are blocked or if the internal fans fail for any reason, this is highly unlikely unless the fans are very old and have been abused by never cleaning them. C.
This 600 watt transmitter output is bullet proof using the LDMOS BLF184XR. The manufacturer of the LDMOS says that XR means 'eXtremely Rugged' and so far from our experience this has proved to be correct. LDMOS RF power transistors are designed for the most challenging engineering environments and withstand severe load mismatches, this combined with our VSWR reflected power protection circuits keep this transmitter alive in the most extreme circumstances. Just the same as the temperature protection, the VSWR protection backs of the power gently to a safe level, there's no abrupt cut-off or shutdown.
This single 3U enclosure is in strong 16-gauge steel, powder coated and baked in satin black. It's super strong to the level of combat strength with no flimsy thin paneling like Chinese products. The powder coating protects the surface from deep scratches which in turn prevents exposed steel and rust. The front panel is 19 inches and will fit perfectly in a standard 19 inches rack.
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.
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.
|Adj. 1-600 Watts into 50 ohms
|Less than -75 dB ref to carrier
|Less than -70 dB ref to carrier
|+/- 1 KHz max. typ. +/-300 Hz
|Deviation Sensitivity Stability
|+/-2 % max
|Freq Fine Adj
|> +/- 1000 Hz
|87.5 to 108 MHz in 100 KHz steps
|Out of Lock RF Muting
|Less than -70 dB ref to carrier
|Less than 0.5 %
|Less than 0.5 %
|Any VSWR phase or length of time
|-20 to +40 Deg C
|(50 uS/ 75 uS/ None) Selectable
|Audio Input Connector
|Phono/ RCA type unbalanced sockets
|Audio Input Sensitivity
|+4 dBu for +/- 75 KHz dev.
|Stereo and Audio Processor
|Signal To Noise Ratio
|0.2% THD Max
|0.2% THD Max (at MPX section)
|90-264 V AC 135-370 V DC 47-63 Hz
|900W for 600W RF OUT with RF SWR less than 1.5
|20-90% RH non-condensing
|UL60950-1 TUV EN60950-1 BSMI CNS14336 CCC GB4943 J60950-1 approved
|Compliance to EN55022 class B EN61000-3-2 3 FCC PART 15 / CISPR22 class B CNS13438 class B GB17625.1
|Compliance to EN61000-4-2 3 4 5 6 8 11 light industry level criteria A
©2023 Aareff Systems