Kenwood / Trio - Kenwood Communications, Tokyo
R - 1000
überarbeitet am 21.10.2010
When Kenwood introduced the R-1000 in 1979, the shortwave listener community was very
surprised about the design and technical specifications of this set; this little
radio did in some cases surpass specifications of very expensive semiprofessional
gear. The R-1000 is equipped with an electronic preselection with octave filters,
a PLL synthesis circuit and a digital frequency display.
The Kenwood R-1000 is a PLL synthesizer controlled double conversion communications receiver covering frequencies up to 30 MHz. It can be operated from different mains voltages and also from 13,8 V DC for mobile operation from a car battery.
The desktop receiver is with it's dimensions (300 x 115 x 218 mm) and weight (5.5 kg) quite compact. To carry it to Your holiday cottage, it has a carrying handle that can be used as a tilted stand.
In the left part of the front panel, You find the mains and timer switch,
the buttons to set the clock and a switch to set the display indicating the frequency
or the time (the time is indicated in the american format, up to 12:00 and with
LEDs indicating AM or PM); just below are the jacks for headphones and a cassette recorder.
At the rear of the set, You find the the socket for the mains cable, the set can be operated from 100 to 240 V AC and a connector for 13,8 V DC operation. The set has a koaxial SO-239 antenna socket and connectors for a high impedance long wire antenna, earth; sockets used for muting of the set in connection with a matching transmitter and one to control a tape recorder and jacks to connect an external speaker, e.g. the Kenwood SP-100.
Operating the R-1000 is straightforward: connect a long wire antenna or a
random wire length (I use 25 m of long wire connected to a Yaesu FRT-7700 antenna
tuner) to the antenna connector, press the power button and adjust the AF gain /
volume control for a slight noise. Make sure that the Function switch in the left
upper corner is set to display the frequency. The attenuator switch should be
set to 0. To receive a broadcast band station, press the mode switch "AM-WIDE".
Turn the band segment control to 6 (for the MHz digit), and adjust to 1 5 5 with the
main tuning knob - now You should be tuned to the news coming from Vienna. When
You reach the edge of a one MHz range (i.e. when changing from 4999 > 5000 >
5005 kHz, You will have to switch from 4 to 5 MHz segment and have to tune down
within the whole band to reach the beginning of the 5 MHz segment.
With the minor drawback, that the R-1000 has no frequency memories and no
capabilities of postprocessing the HF signal with passband tuning or notch filter,
the R-1000 is still an above average shortwave receiver meeting most DXers demands.
© Martin Bösch 8.7.2010