20W EIRP Complete FM Radio Transmitter Broadcasting System

What Distance Will 20W Do?

Predicting distance is one of the most difficult questions we are asked. From experience we can say mounting a dipole antenna on a two story building roof will typically achieve 10km+. If it's mounted on a commercial tower, then 15km+ is possible. We can give more accurate predictions on range using satellite elevation data like this RF Coverage Plot at our Facebook page.

RDS is now included on all stereo transmitters with audio processing. RDS shows your station name and more scrolling across the car radio display.

This 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 can be programmed to 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.

Do You Have A Question?

PACKAGE CHECKLIST

Qty	Description	Item
1	20W FM Stereo Transmitter with Audio Processing
1	Standard FM VHF Dipole with 12m of cable
1	Mounting Clamps

5 YEARS LIMITED WARRANTY MORE INFORMATION

20W Maximum Range Chart

This graph is based on average customer reports in some directions. Basically this shows the typical ranges really ever recorded. Most of the reports were radio station listeners that phoned, texted, WhatsApp etc. into the radio station programs operated by our customers. Range is very difficult to predict as there are many factors that effect it. More info on FM Transmission Range

FM Stereo Audio and Processing: Achieving Loud, Crisp Broadcast Quality

THE SIGNAL FOUNDATION: LOW NOISE AND HIGH STABILITY

The high-quality FM signal begins with the internal Veronica PLL (Phase-Locked Loop) driver, which serves as the 1W Exciter.

• Function: Produces a super low noise and highly stable FM signal.

• Trustworthiness: Using a trusted PLL driver is fundamental to preventing drift and ensuring carrier integrity, a hallmark of professional-grade equipment.

• Resource: More information on this core component can be found in our 1W Exciter (PLL driver)

INTERNAL AUDIO PROCESSING FOR LISTENERS

After the PLL generates the stable carrier, the internal processing boards take over to shape the audio for the best listener experience:

1. Internal Stereo Coder: Generates the FM stereo signal.
2. Internal Audio Processor: Applies dynamic processing (like limiting and compression) to ensure a loud and crisp audio signal on the listener's radio.

PROFESSIONAL FLEXIBILITY: EXTERNAL PROCESSOR INTEGRATION

For expert broadcasters who utilize specialized external equipment, our system offers complete bypass capabilities.

• Integration: If you are an audio professional preferring an external processor (such as Orban, Inovonics, or PC-generated MPX/RDS signals), the system is fully flexible.

• Bypass Capability: The internal limiter, stereo coder, and audio processor boards can be completely disabled.

• Benefit: This flexibility ensures that the signal chain meets the exact, precise specifications and processing signature required by the station's chief engineer.