National Panasonic DR-Q63 / RF-6300L
Manufactured by National Panasonic, Osaka.
When the Panasonic DR-Q63 / RF-6300 was launched, large and impressive „world band receivers“ with a large carrying handle and long telescopic antennas were „en vogue“.
- Principle: Single conversion up to 3900 kHz, Double conversion above 3900 kHz; IF AM 2600 & 455 kHz / FM 10.7 MHz
- Operation modes: A1 with BFO, AM (A3), FM (F3)
- Frequency range: FM, LW, MW, 5 x SW (1.6 - 3.9 / 3.9 - 7 / 7 - 12 / 12 - 20 / 20 - 30 MHz)
- Frequency display: digital display, 1 kHz
- Frequency memory: 12 memories
- Features: Clock / Timer
- Sensitivity: AM (A3) / Selectivity: kHz (-6/-60 dB)
- Mains operation: 110, 230 V
- 430 x 290 x 132 mm, weight kg
The DR-Q63 / RF-6300 is an impressive, huge, portable world band receiver which, with its dimensions of 43 x 29 x 13.2 cm and its weight of 6 kg, is „portable“ in the true sense of the word; the DR-Q63 is by no means a travel companion for the coat pocket, but that is also not exactly the case with the Grundig Satellit 3400 or Nordmende Galaxy Mesa 9000, all of which are intended for tabletop use.
The receiver can be powered from the mains with 110-230 V or with six UM-1 batteries, but the latter will not last long.
The upper part of the front panel is occupied by various displays: from the left, you find an LCD quartz clock (with its controls just below it), the blue-green fluorescent display, the analogue S-meter and an overview table of the shortwave band assignment and the various shortwave ranges of the receiver.
The left half of the front panel is taken by the speaker grill, the loudspeaker has a diameter of 12 cm.
In the centre of the right half of the front panel is the large main tuning knob, it has an electronic lock and two tuning speeds can be selected.
The 12 keys for the frequency memories are located to the left of the main tuning knob, just below it the volume control, the sockets for headphones / earphones and just beside it the switch for the narrow and wide IF bandwidth and the BFO switch.
Above the main tuning knob, there is a row of six push buttons. The switch on the far right is the main switch, the buttons to activate the digital frequency display and dial illumination.
The band switch just below selects FM, longwaves, mediumwaves and the five shortwave ranges. In the range SW1 from 1.6 - 3.9 MHz, the DR-Q63 acts as a single conversion superhet, on higher frequencies in the frequency ranges SW2 - SW5 (3.9 - 7 / 7 - 12 / 12 - 20 / 20 - 30 MHz) as double conversion superhet. In the lower right corner of the front panel are the separate bass and treble tone controls, the BFO control and the RF gain control.
The operation is relatively uncomplicated: The receiver is switched on with the small RADIO ON/OFF switch, the correct shortwave band is set with the band selector, the small table to the right of the signal strength instrument helps to find the correct band: SW2 would be the right choice for receiving the 49 m shortwave band, the main tuning knob is used to set to 6 - 1 - 5 - 5 - et voilà: Austrian Radio from Vienna!
In summary, the DR-Q63 / RF-6300L is a bulky and still portable double conversion superhet equipped with twelve frequency memory channels, the possibility of direct frequency entry is not provided. The receiver has two IF bandwidths, the IF filters are not very steep-edged. CW and, with some restrictions, single sideband reception is possible by means of a switchable BFO. Thanks to the power amplifier and the large speaker, the audio is appealing.
The receiver cannot compete with professional or even semi-professional grade receivers. From a hobbyist's point of view, it is a still „usable“ collector's item, which documents a development step between analogue radios with frequency counter and a completely microprocessor-controlled receiver. In practical use, however, it can be replaced by a pocketbook-sized double conversion set with frequency memories and other features, and is sure to be left at home when travelling.
Single conversion (up to 3.9 MHz) or double conversion (above 3.9 MHz).
The set is equipped with semiconductors.