PA.SA.T.ELECTRONICS SW250_PASAT_GR

GENERAL DESCRIPTION

Shortwave 250 Watt class D AM broadcast transmitter. Frequency range: 3.5Mhz-7.5Mhz

photo PA.SA.T.ELECTRONICS SW250_PASAT_GR

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 250w Max and 1000watt PEP.

The transmitter is able to perform 24/7 at full power. The filters used are LPF 7 pole. On the display you can see the watt carrier indication only and the swr indication.

photo PA.SA.T.ELECTRONICS SW250_PASAT_GR

Furthermore, the transmitter has a swr protection and the sensitivity of the swr protection is adjustable from the bottom potentiometer on LCD.

A limiter and negative peak limiter is provided.

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.

TECHNICAL SPECIFICATIONS
Output frequency range	3.5 - 7.5 MHz (user adjustable) In 2 versions: a: 3500 kHz to 5500 kHz b: 5500 kHz to 7500 kHz
Step size	1 Hz, 10 Hz, 100 Hz, 1 kHz, 10 kHz, 100 kHz
Audio response	50 Hz - 10 kHz ± 1.5 dB
Audio Input	XLR balanced 600 ohm at 1 V RMS
Carrier level	set by the user
Output power	0-250 Watt max no modulation
Efficiency	Around 85-90%
Antenna connector	UHF SO239
Weight	12.5 kg
Power requirements	230V AC
Specifications may change without notice

TUBE COMPLEMENT
RF stages		AF stages and modulator
Number	Type	Number	Type
-	-	-	-

THIS TYPE OF TRANSMITTER IS INSTALLED IN THE FOLLOWING COUNTRIES
	ITU	Country	ITU	Country
	LUX	LUXEMBOURG