DX-302 Communications Receiver
(200-0220)                 Features                   Faxback Doc. # 45535

...It All Comes Alive on your Realistic DX-302 Communications Receiver

The entire world is at your fingertips with the Realistic DX-302.  English
language broadcasts can be heard from such world capitals as London, Tokyo,
Paris, Rome, Berlin and Moscow.  Exotic music and unusual languages can be
heard from stations located in distant, isolated sections of the world. 
You might listen in as the Coast Guard aids a vessel in distress, or
perhaps eavesdrop as the skipper of a fishing boat radios back news of the
day's catch.  Airplanes, both civilian and military, use radio to keep in
touch on intercontinental flights.  Radio amateurs (commonly known as
'hams') can be heard chattering away around the clock with friends located
in the next town or on the other side of the world.

Your DX-302 is designed to tune a wide variety of signals from 10 kHz to 30
MHz.  It receives AM (Amplitude Modulation), CW (Continuous Wave, better
known as Morse code) and SSB (Single sideband) signals.  It also has superb
sensitivity and selectivity to dig out distant and low-powered stations.

The synthesized drift-cancelling triple-conversion mixer system provides
thirty tunable ranges from 10 kHz to 30 MHz, and is derived from a single 4
MHz quartz oscillator.  This results in precise frequency control and
superior frequency stability.  A stable low frequency kHz Tuning circuit
covers the 1 MHz increments and the 5-digit display shows the exact
frequency.

The DX-302 uses 39 transistors (10 of which are field-effect type), a
Large-Scale Integration IC frequency counter, 3 integrated circuits, 32
diodes, 5 seven-segment LED displays and six LEDs.

You can use the DX-302 at home (on 120 volts AC for USA/CANDADIAN models
and 220/240 volts for EUROPEAN/AUSTRALIAN models or 12 VDC (8 "C" cells) or
in your car or vehicle (12 Volts DC negative ground).

Main features are:

* Quartz controlled frequency synthesizer
* Continuous frequency coverage from 10 kHz to 30 MHz
* Large digital frequency display
* Triple conversion circuit
* Six element and nine element ceramic filters provide outstanding
  selectivity (freedom from adjacent channel interference)
* Dual MOS Field-effect transistor in the critical mixer stage (freedom
  from cross-modulation and undesirable RF distortion)
* All silicon solid-state circuitry for maximum circuit efficiency with
  minimum noise
* Audio power IC provides high intelligibility sound
* AC or DC (negative ground) operation
* If the AC power should fail, an automatic circuit switches over to the
  battery power with no interruption of sound

The DX-302 uses a Wadley loop synthesized circuit for continuous frequency
coverage.  With this design, it is normal to find beat notes on such
frequencies as 910 kHz and 1,000 MHz.  Such beat notes indicate your DX-302
is working properly.  The effects of such beat notes can be reduced simply
by trying a different external antenna or readjusting the outer (MHz)
tuning knob.

(CC/wr-07/13/98)