National Panasonic Portable receivers
The Japanese company Panasonic, a part of the industrial group Matsushita, always concentrated on the home electronics sector, they first entered the shortwave world receiver market around 1965 with the T-100. With its sets, Panasonic often targeted the same customer segment as Sony did, but although the receivers' reception performance was not quite as brilliant, they always stood out because of their favourable price-performance ratio and nevertheless stood out from the mass of cheap Japanese sets thanks to their high quality of workmanship.
The RF-2200 (designation DR-22 in the non-US market) was a portable shortwave receiver with linear analogue display, which allowed single sideband reception by means of BFO. In 1978, the DR-28 in a similar cabinet size with a digital frequency counter appeared. The world receiver, offered for 595.- sFr., was said to be good value for money with good sensitivity, but the frequency stability left much to be desired due to the technical design with conventional circuitry and frequency counter. The DR-29 with the built-in preselector had a better large signal behaviour and was very popular as a portable set.
As top-of-the-range receivers, the large-format DR-48 and its successor DR-49, which were based on a conventional receiver design with a frequency counter added, offered performance not quite corresponding to the price tag, they suffered from insufficient frequency stability and selectivity.
Around 1980, the RF-2800 was followed by the RF-2600, a stripped down version of the RF-2800, which, at US$ 290, was the cheapest shortwave receiver with digital display in it's years. Two years later, the RF-3100, a small desktop receiver with PLL frequency synthesis , had a much better frequency stability and was quite common in Switzerland. The RF-6300 LBS with PLL synthesis circuitry and 12 memory channels was a gigantic portable radio of enormous weight and size, the microprocessor-controlled RF-9000, built in only small numbers, offered timer and memory functions in 1982, but reception performance remained disappointing and far below the value expected for the approximately US$3000.
The receivers RF-799, a microprocessor-controlled small travel radio with its 10 memory keys and similar format which was an answer to the legendary ICF-2001 from Sony, but which only covered the broadcast bands in the shortwave range, and the station receiver RF-B600 with 9 station memories in tabletop format were Pansonic's last tabletop sets. Subsequently, Panasonic concentrated its activities for some time on the construction of small travel radios.
Portable Receivers from National Panasonic
|RF-100||1964||Single Conversion||VHF, LW, MW, SW||Analogue display|
|R-3000||1965||Single Conversion||VHF, LW, MW, SW||Analogue display|
|DR-22 / RF-2200||1976||Double Conversion||VHF, LW, MW, SW 3.46-28 MHz||linear analogue display, crystal calibrator|
|DR-28 / RF-2800 LBS or RF-2800||1977||Double Conversion||VHF, LW, MW, SW 3-30 MHz||Digital display, 1 kHz|
|DR-29 / RF-2900 LBS or RF-2900||1979||Double Conversion||VHF, LW, MW, SW 3-30 MHz||Digital display, 1 kHz, preselector|
|DR-48 / RF-4800||1976||Double Conversion||VHF, LW, MW, SW 3-31 MHz||Digital display, 1 kHz|
|DR-49 / RF-4900||1979||Double Conversion||VHF, LW, MW, SW 3-31 MHz||Digital display, 1 kHz|
|DR-26 / RF-2600||1979||Double Conversion||VHF, LW, MW, SW 3-30 MHz||Digital display, 1 kHz|
|DR-31 / RF-3100||1983||Double Conversion||VHF, LW, MW, SW 1.6-30 MHz||PLL synthesis, digital display 1 kHz|
|RF-6300LBS / DR-Q63||1982||Double Conversion||VHF, LW, MW, SW 1,6-30 MHz||PLL synthesis, digital display 1 kHz, 12 memories, digital clock|
|RF-5000||1978||Single Conversion||FM 76 - 108 MHz / LW / MW / 8 x SW||linear analogue display, clock|
|RF-8000||1976||Double Conversion||FM broadcast band, VHF 32 - 230 MHz, LW, MW, SW - 30 MHz||linear analogue display, crystal calibrator|
|RF-9000||1980||Double Conversion||VHF, LW, MW, SW 0.15 - 30 MHz||PLL synthesis, digital display 1 kHz, 15 memories, scan functions, digital clock|
|RF-799||1982||Single Conversion||VHF, MW, SW 2.3-26.1 MHz||PLL synthesis, digital display 5 kHz, 10 memories|
|RF-B300||1983||Digital display 1 kHz|
|RF-B600||1983||Double Conversion||VHF, AM 150-29999 kHz||PLL synthesis, digital display 1 kHz, 9 memories|