To the left of it, you find the tuning knob for the ranges on the left coarse dial, the LW, MW, SW1 and VHF ranges, in all these ranges the DR-48 works as a single conversion superheterodyne. In the centre of the large dial, there is a window for the red LED frequency display, to the left of which are the coarse dials for longwaves (only on the European model DR-48), mediumwaves, SW1 (1.6 - 3 MHz) and the FM broadcast band, to the right the coarse dials for the seven shortwave ranges, in each range 4 MHz are covered.ĭirectly in the centre of the front panel is the huge main tuning knob, equipped with a crank, when the centre is pressed in, the tuning speed is set from slow to fast. To the right are the rotary controls for volume, bass and treble and the BFO control. On the left of the front panel is the large loudspeaker, below it the mains switch and the 3.5 mm jack sockets for an external speaker and the tape line out. In addition to a mains input that can be switched from 110 to 220 V, the RF-4800 also has a 12V car battery connector and its two battery compartments hold 8 UM-1 batteries. Two handles at the front of the black lacquered sheet-steel cabinet provide a certain mechanical protection for the operating elements. The Panasonic RF-4800 was marketed in Europe as the DR-48, which also covers the longwave range.Īt 48 x 20 x 35.5 cm (wxhxt) and 8 kg, the landscape-format station receiver is one of the large and only theoretically portable sets.

National panasonic dr49 service manual