500W AM SHORTWAVE BROADCAST TRANSMITTER 49M BAND

                                       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 500w Max and 2000watt 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
Supported Bands: 80M, 75M, 49M, 40M.



Operation video:



Step size:1Hz,10Hz,100Hz,1KHz,10KHz,100KHz.
Audio response:50hz-10khz +- 1.5db.
Audio input: XLR balanced 600ohm at 1V rms / RCA female 0.5V Rms at 10Kohm
A limiter and negative peak limiter is provided.
Carrier level:set by the user
Output power:0-500Watt 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:17 kg


If you have any questions feel free to contact me at pa.sa.t.electronics@hotmail.com

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