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 400w 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 questions feel free to contact me at pa.sa.t.electronics@hotmail.com


Σχόλια

Δημοσίευση σχολίου

Δημοφιλείς αναρτήσεις από αυτό το ιστολόγιο

1000 Watt Max class D AM MW broadcast transmitter

Εικόνα
                                                                              AM DDS class D MW complete transmitter This is a high efficiency Am transmitter in MW 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 10 00w Max. Technical data : Power requierements: 230V AC or 110V AC  Performance: Output freq. range :500khz-1.8mhz(user adjustable).In 3 versions : a:500khz to 900 khz b:900khz to 1.4MHz c:1.4MHz to 1.8MHz(DEFAULT). Step size:1Hz,10Hz,100Hz,1KHz,10KHz,100KHz. Audio response:50hz-10khz +- 1.5db. Audio input:  RCA female 0.5V rms at 10Kohm or XLR balanced 600ohm at 1V rms. A limiter and negative peak limiter is provided. carrier level:set by the user output power:0-1000Watt max no modulation Antena connector: UHF SO239 The transmitter includes  protection for exc
Διαβάστε περισσότερα

3000 Watt class D AM MW broadcast transmitter

Εικόνα
                                                        AM DDS class D MW complete transmitter This is a high efficiency Am transmitter in MW 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 30 00Watt   and when modulated you can expect 14000Watt  PEP. Technical data : Power requierements: 230V AC  Performance: Output freq. range :500khz-1.8mhz(user adjustable).In 3 versions : a:500khz to 900 khz b:900khz to 1.4MHz c:1.4MHz to 1.8MHz(DEFAULT). Step size:1Hz,10Hz,100Hz,1KHz,10KHz,100KHz. Audio response:100hz-10khz +- 1.5db. Audio input: RCA female 0.5V rms at 10Kohm or XLR balanced 600ohm at 1V rms. Limiter and negative peak limiter is provided. Carrier level:set by the user Output power:0-3000Watt no modulation Antena connector: UHF SO239 or Female 7/16 The transmitter includes  protection for excessively SWR and protection
Διαβάστε περισσότερα