Degen has come out with two winners recently, the DE1101 and DE1102 - so there has been a fair amount of anticipation surrounding the 1103. The 1103 is a digital PLL dual conversion radio (FM/MWSW/LW). It has a display that provides you both a digital readout along with a simulation of the old-fashioned analog dial. The DE1103 comes with a 220v AC adapter, rechargeable NiMH batteries, earbuds, external antenna wire and instruction pamphlet (in Chinese).
1. With the attachment of the outside antenna into the antenna jack, the whip antenna is fully excluded and after it the RF amplifier of the AM bands (to the envy of the owners of YB400
IF filters in the DE1103 are chosen wonderfully. Their difference during switching from one to the other is easily understood by sound. The inscriptions on the bodies of the filters are R50J and 450H. They correspond to the specified band passes, 3 and 6 Khz respectively. DEGEN specifies the value of 4 Khz for the band pass of the
Unfortunately, the PLL of DE1103 has a birth defect, which is hard to correct with simple means. This is the insufficient filtration of the control voltage for VCO. This schematic chosen by the DEGEN engineers is a simple passive RC filter that substitutes the charging transistor and filter circuit (that are present in YB400
