This package includes:
- 19" Rack FM Stereo Exciter with Limiter
- 19" Rack Amplifier Splitter
- Four 19" Rack 200W Amplifier (800W)
- 19" Rack Amplifier Combiner
- 20 Meter Foam Grade Antenna Cable
- 5/8 antenna (+4.8dB Gain)
The ERP (WATTS) from the antenna in this package is significant and requires a professional installation at 15 meters directly above any areas where it is accessible by people. If you have any doubts about this please contact us for advise.
2000 WATTS Effective Radiated Power - The combination of 800 watts amplifier power, 20 meters of foam grade RG213 and a high powered 5/8 antenna results in a radiated power of 2000 watts (2 KW). To a listener at the horizon this is equal and identical to the signal received from a 2 KW transmitter with a single dipole antenna.
The 5/8 antenna used with this system is tuned to a specific frequency so on ordering you need to select the frequency you require between 87.5 and 108 MHz in the box above. If in the future you want to change frequency, the transmitter can be changed easily, but you will need to purchase another 5/8 antenna for the new frequency.
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 and (LVD) 2006/95/EC for safety.
19" Rack Amplifier Splitter - The 1 watt signal from the exciter is further amplified by this unit, then it is split accurately in phase and amplitude into separate 1 watt outputs. This important split drives the successive amplifiers correctly for combining process.
Four 19" Rack 200 Watt Amplifiers - The four amplifiers together produce 800 watts of transmitter power. Each amplifier operates with ease at full power 24 hours a day non stop in any country and with any AC voltage in the world. The amplifiers have a neat little meter on the front panel lit up with intense blue LED's to indicate forward and reflected power. The amplifiers are fully protected from poor SWR and return loss of level for any duration of time.
119" Rack Amplifier Combiner - The simply does as it says, it combines the output of the 200 watt amplifiers together. It takes in the two 50 ohm inputs and combines them into a single 50 ohm output. It is a passive device (needs no power supply) and does not require any maintenance or service. The output of unit connects directly to the antenna cable
20 Meter Antenna Cable - This cable is high quality using foam dielectric and carries the radio signal 20 meters to the antenna with only a loss of 0.8dB, this would normally be used for stations with towers, or masts of 15 meters in height.
5/8 Antenna (+4.8dB Gain) - We have been manufacturing and selling this antenna since 1996, some our customers who purchased this antenna back in 1996 are still using today, it's a great antenna and it's a great credit to Veronica and Aareff. This antenna even found it's way to the top of the Greenpeace ship Rainbow Warrior a few years ago. The 5/8 antenna is very robust and will effectively multiply the power horizontally to the horizon making sure maximum signal is efficiently put in the right place and not wasted into space or ground.
The advantage to using separate amplifiers is that if you need to service or clean an amplifier you can turn that amplifier off and the other amplifiers stay on and keep the station on air at slightly reduced power. 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.
