400W ERP FM TRANSMITTER SYSTEM USING 4 WAY STACKED DIPOLE
19" RACK STANDARD PRO-RANGE
This package includes:

- 19" Rack FM Stereo Exciter with Limiter
- 19" Rack 100W Amplifier
- 40 Meters Antenna Cable
- 4 Way Stacked Dipoles
This system includes everything you need to get the radio transmission side of your station up and running on delivery. The only thing you need to provide is a pole, mast or tower to put the antennas on and a standard stereo line (0dBm) audio signal from your studio or link equipment.

400 WATTS Effective Radiated Power - The combination of 100 watts amplifier power, the four way stacked dipole and foam grade LMR400 cable of 40 meters gives 407 WATTS ERP from the antenna. To a listener at the horizon this is equal and identical to the signal received from a 407W transmitter using a single dipole antenna.

HOW DOES IT WORK!

19" Rack FM Stereo Exciter with Limiter - This neat, simple and great looking 2U 19" rack unit with intense blue LEDs produces the high quality FM stereo signal at your chosen frequency. The signal is excited up to 1 watt of RF ready for further amplification. The limiter and stereo coder can be completely disabled if you want to use an external processor such as Orban, Inovonics or PC generated MPX/RDS. This unit complies with European standards ETS 300384 for R&TTE, EN 301 489-11 for EMC,(LVD) 2006/95/EC for safety and ITU-R BS.450-3 (11/01) FM Broadcasting at VHF.

19" Rack 100 Watt Amplifier - The amplifier produces a minimum of 100 watts transmitter power operating with ease at full power 24 hours a day non stop in any country and with any AC voltage in the world. The amplifier has a neat little meter on the front panel lit up with intense blue LED's to indicate forward and reflected power and is fully protected from poor SWR and return loss of level for any duration of time.

40m Meter Antenna Cable - The cable is LMR400, this is high quality foam dielectric cable carries the radio signal to the four way stacked dipole antenna with extremly low loss.

4 Way Stacked Dipole (+7.8dB Gain) - The four way, tier or stacked dipole package includes phase matched dipoles. The antenna multiplies the power from the antenna cables horizontally to the horizon making sure maximum signal is efficiently put in the right place and not wasted into space or ground.


Instructions are supplied to show the station engineer how to set this system to any frequency from 87.5 - 108.0 MHz. However, when we assemble this system we have to test and set it to some frequency, please select from the box above the frequency you would like it set to on delivery.

The advantage to using separate amplifier is that the system is easier to upgrade at a later date. If you have a spare amplifer it is very easy to service or clean by simply swapping the amplifiers which takes about 2 minutes every three months. This is an important feature our previous customers like, because the station has significantly less down time for maintenance.

Over the last 12 years in Africa and Middle East alone we sold our systems into Congo, Uganda, Liberia, Zambia, Yemen, Rep South Africa, Oman, United Arab Emirates, Tanzania, Southern Sudan, Kenya, Ghana, Gambia, Nigeria and Niger. Our transmitters are very popular in very hot climates as they handle the heat and the dust very well under 24/7 operation.

We have tried to think of everything you will need to save you time when doing the installation. The package also includes, antenna mounting brackets, nuts and bolts, even the cable ties to strap your antenna cable to the mast. All you need to provide, is a tower or mast (at least 15 meters in height) to install the antenna system on and a standard line level stereo audio feed from your studio mixer or link.

Our final word, at Aareff / Veronica we are primarily engineers with a passion for radio, not sales people. If you have any technical questions please feel free to email us.
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