For sale Sony CRF-1 device With dimensions of 254 × 100 × 335 mm and a weight of 6.6 kg, the receiver is portable and a good companion for all those who travel by car on vacation and have enough space in the trunk; The battery compartment, which contains 8 UM-1 mono cells under the top cover, requires an operating voltage of 12 volts. A coarse dial extends across the entire front panel, immediately showing the listener the actual position in the shortwave spectrum. Small markings indicate broadcasts on shortwave and amateur radio bands. To the right is a small field strength meter, correctly calibrated in S-steps. The tuning knob is oversized and has a good grip, but tuning the frequency on the receiver is a bit tricky. By pulling out the knob, you can quickly tune across the entire band, and the tuning mechanism is good enough to land directly on radio stations in the 5 kHz grid. When you are close to an interesting frequency, push the tuning knob and the device will lock onto the next lower frequency mark of 100 kHz. The finely tuned VFO is now tuned in 100 Hz steps within a 100 kHz range, and the set shows no ladder effect even when in ECSS/SSB mode. Searching for a station within the band is a bit tricky if you have to go past a 100 kHz mark. Tune to 6095 kHz - pull out the knob - turn it slightly until it is above the 6100 mark - push the knob back in and continue searching at 6102 kHz. To the right of the tuning knob below the S-meter is the equally important preselector knob. In the 150 kHz - 400 kHz / 400 kHz - 4 MHz / 4 - 30 MHz bands, you have to turn it up to the maximum signal, and the dial only gives a rough impression of where to look for the maximum signal. The preselector dial for other bands, e.g. ICF-6700W / 6800W, is more useful. With a switch below the rotary knob, the preselector can be switched off in uncomplicated strong signal conditions, which simplifies quick frequency changes. Next to it is the noise blanker switch. Below the frequency display are pushbuttons to activate the dial light, check the battery voltage, and activate the digital frequency display. Next to them are the operating mode buttons for AM - wide (10 kHz) / AM - narrow (4.4 kHz) / USB / LSB / CW (3 kHz). On the back of the set are sockets for line out, timer and mute, and there are screw terminals for antenna and ground and a BNC antenna connector. With a rotary switch above the receiver, the external antenna or the built-in telescopic antenna can be selected; for both antennas, a -20 dB attenuator is provided. Technically, the signal fed to the external antenna connector must first pass through one of the eight electronically switched octave bandpass filters, and then the preselector, with its three divisions, is switched into the signal path. In the first mixer, the signal is converted to a high first IF of 55.845 MHz; between the 100 kHz marks, the VFO can be used for tuning within a 100 kHz range; the signal is then converted to the usual second IF of 455 kHz. After passing through ceramic IF filter stages and an IF amplifier, the signal is demodulated by a diode in AM mode, and a product detector is used in SSB mode. Last offer 6800 SAR Selling to the highest bidder.