Shortwave 400 Watt class D AM broadcast transmitter.Frequency range: 3.5Mhz-7.5Mhz
Shortwave radio broadcast transmitter This is a high efficiency Am transmitter in SW band using dds for frequency synthesis and class D full bridge RF amplifier with pwm audio modulator. What you see is a complete transmitter assemled and fully tested.The unit is capable to produce a carrier of 400 w Max and 1600watt PEP. Technical data : Power requierements: 230V AC Performance: Output freq. range: 3.5Mhz-7.5Mhz(user adjustable).In 2 versions : a:3500 khz to 5500 khz b:5500 khz to7500 khz Step size:1Hz,10Hz,100Hz,1KHz,10KHz,100KHz. Audio response:50hz-10khz +- 1.5db. Audio input: XLR balanced 600ohm at 1V rms. A limiter and negative peak limiter is provided. Carrier level:set by the user Output power:0-400Watt max no modulation Antena connector: UHF SO239 The transmitter includes protection for excessively SWR and protection for excessively heat. Watt meter, P.T.T switch, SWR metter and modulation meter is included. Weight: 12.5 kg If you have any questi...