1000 Watt Professional Broadcasting FM Transmitter

Stereo with Audio Processing and RDS.

This is the all singing and dancing version of the 1000W transmitter. It is most ideal for stations that don't have good techs on site and just want something to plug in that does everything. This version is stereo, with audio processing built in and RDS, it has it all.

MPX only

This is lower cost because it is only designed for a raw MPX input. Don't think because it's low cost, it's for the beginners. On the contrary, it's intended for expert stations who understand MPX baseband that can and want to create the MPX with external processes. Any externally generated MPX signal needs to be in accordance with the recommendations of:
https://www.aareff.com/ETR132.pdf

The power output of this transmitter is 1000W 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.

The final output section of this transmitter uses a BLF188XR, they say the XR means “eXtremely Rugged” This LDMOS RF power transistor is designed for the toughest engineering environments and is capable of withstanding a severe load mismatch with VSWR greater than 65:1 at 5 dB of compression. The BLF188XR is actually capable of providing an outstanding 1600 W of peak output power and still pass extreme ruggedness testing. For ultra reliability we just run it at 1000W maximum. It can be set at lower power levels, right down to 10W if required.

On the underside of this unit controls are accessible to set the:

• RF power
• Pre-emphasis to 50 or 75 uS
• Frequency between 87.5 to 108 MHz

On the back panel of this unit:

• The input socket to program the RDS in real time
• Audio processor stereo output to drive internet radio coder

As ever, we have tried to make installation and power up as easy as possible. For the Stereo with Audio Processing and RDS version all you need is a quality mixer (and great radio presenters). Just connect the output of the mixer directly the gold plated RCA inputs on the back panel of the driver. Connect the transmitter 800W output to a suitable 50 ohm antenna that can handle 800W. Thats it!! switch on, if you don't see any reflected power on the front panel, you are broadcasting serious power and serious distance.

We will set the transmitter to your chosen frequency in our workshops prior to despatch and also make a final test at full power for 24 hours. You can set the frequency anywhere between 87.5 MHz to 108 MHz later if you wish by simply changing the dip switches on the underside of the driver panel.

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

Our 2.5KW EIRP and 5KW EIRP 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.

We build all our transmitters to comply with the major international standards. European ETS 300384 for R&TTE, EN 301 489-11 for EMC and (LVD) 2006/95/EC for safety, the relevant FCC sections of US 47 CFR Part 73 for verification and ITU-R BS.450-3 (11/01) FM Broadcasting at VHF.

Dust, damp and salty air is the biggest transmitter serial killer. Keep your transmitter free or clear of these things and it will last a very long time, way longer than our 2 year warranty. But just to give you peace of mind, if it fails within two years, we will fix it or replace it for free, see warranty conditions.

With years of experience we know how transmitters, in general fail. We have over the years spent hours and hours, not just through the working day, but long nights too, to come up with viable solutions to keep transmitters running in even the most adverse conditions. The 1000W amplifier used in this transmitter was no exception. We have tried to think of every reasonable way it would fail and within design attempted to provide counter measures of prevention.

We are not resellers or dealer, we make this product in our workshops. If you have any technical questions, we welcome them.

(All stated measurements were made at 220VAC at 27 Degrees Celsius ambient temperature unless stated) Click here for the user manuals: Driver and Amplifier