Kenwood / Trio - Kenwood Communications, Tokyo
R - 300
überarbeitet am 21.10.2010
Technically, the Kenwood R-300 is very similar to it's predecessor, the QR-666. It's frontplate has been cosmetically adapted to the consumer's taste of the seventies.
The Kenwood R-300 was the first from the R-xxxx series, in contrast to later models, it was equipped with an analog frequency dial only, later sets featured a digital frequency display.
The completely solid state receivers with it's dimensions of 360 x 165 x 300 mm weighs 7.6 kg and comes with a black metal desktop cabinet. In contrast to the grey plastic knobs looking like old mains fuse holders in the earlier QR-666, the R-300 has black knobs with silver metal rims and metal pushbuttons.
In the middle of the front panel, You find the two characteristic green backlit
drum dials. The upper one is the main tuning dial with it's tuning knob, below, You
find the bandspread tuning dial with calibration marks for the amateur bands.
Operating the QR-666 is quite straighforward: Switch the set on using the POWER
pushbutton, turn the RF gain fully clockwise and the AF gain until You hear a slight
noise. To receive "Deutsche Welle" on 6075 kHz, use mode AM, band segment D und
use the main tuning knob to find the signal from Cologne somewhere between the 6,0 and
6,1 marks. Use the fine tuning control to adjust for maximum readibility and tweak
the antenna trimmer for maximum signal strength.
In conclusion, Kenwood's R-300 receiver is a simple all wave and amateur band
receiver. You can use it for listening to the major international broadcasters
signals and for monitoring some amateur radio traffic in CW and SSB modes. Without
electronic memories and with it's only rudimentary dial calibration, I would rather
recommend a set with digital frequency display for Your first steps on the shortwaves.
© Martin Bösch 10.6.2004