PF 500/DPM FM Transmitter

PF 500/DPM - 500 W FM Transmitter



550 W solid state FM transmitter designed to operate in the 87.5 - 108 MHz frequency range for FM radio broadcasting applications. It is composed of:

  • DPM 30
  • KF 500
  • RK 19-6U cabinet.


Available also with dual exciter option to grant the maximum redundancy even in case of failure of one of the exciter, the FM signal is characterized by an excellent signal/noise ratio and by negligible residual AM and FM: all this guarantees the best broadcasting quality.


The PF 500/DPM is broadband, so no adjustments are required for full power operation in the whole 87.5÷108 MHz band, it is also frequency agile thanks to the instant LCD front panel frequency programmability with 10kHz steps and without any other tuning or adjustment. .


All the measures and the main parameters of the transmitter are indicated on the display of the amplifier (forwarded and reflected power, voltages and currents of each single pallet, internal temperature) and also all the alarm indication (VSWR, overtemperature, overdrive, ecc.).


In case of fault of the amplifier or antenna system, a protection board internal to each RF modules lowers automatically the output power, in order to bring back the operating conditions to a safe area without, however, causing a total system shut down.


A remote control with Web Server, SMS and SNMP Client (Simple Network Management Protocol) are available as option for the remote visualization and control of the amplifier parameters.
It’s possible to remotely visualize of all the measures and alarm indications using an Internet browser (Microsoft Explorer 6.0+ or other with the WEB SERVER option) or with short messages on the portable phone (SMS option).


Click on the photo to enlarge


PF low power transmitter

Front view



















PF 500/DPM - Technical parameters
Power output  550 Watt
RF Output Impedance 50 Ohms
RF Output Connector N
Frequency range 87.5 - 108 MHz
Modulation type F3E stereo and mono
Modulation Mode Mono, stereo, MPX, Aux
Pre-emphasis 0, 50, 75 us selectable
AC Input power Single phase 115/230/240 Vac±10%
Cooling Forced Air by internal fans
Operating temperature -10°C ÷ +45°C
Max humidity 95% not condensing
Dimensions 19" - 6U rack (single driver version)