Projects/DR2C-YU1LM SDR

Monoband SDR HF S/H Sample and Hold Receiver with LO at working frequency - DR2C from 30 KHz to 50 MHz-Make it Simple as Possible with Outstanding performances

Dipl. Ing . Tasić Siniša –Tasa YU1LM/QRP

All rights reserved, project is free for personal use only

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http://yu1lm.qrpradio.com/Monoband%20SDR%20HF%20receiver%20DR2C-YU1LM.pdf

Part list

The partlist is for the DR2C-YU1LM/QRP with a connection for external oscillator

C1,C3,C4,C13,C14,C15,C18,C20,C24,C27   100nf
C10,C11,C12,C17,C21,C25,C26,C28        100uF/16V
C32,C33,C34,C35                        220pF
C5                                     zie CX
C6,C7,C8,C9                            2uF2
C84,C29,C30,C31                        47nf
D1                                     1N4148
IC1                                    7805
IC2                                    74HC04N
IC8                                    74HC4053N
IC9                                    NE5532
K1,K2                                  BNC connector
K3                                     pg203j stereo jack
K4                                     Power jack 12V 100mA
L1,L2                                  100uH
R1,R22,R23,R19                         33Ω
R5,R6,R7,R13                           100Ω
R16,R17,R24,R25,R26,R27                1KΩ
R2,R4,R15,R29                          10KΩ
R3                                     500Ω Potentio
R30                                    8k2Ω
R31                                    5kΩ Potentie
R8                                     220Ω
R9                                     100KΩ

CX

1.8mhz  2.2nf
3.5mhz  1nf
7mhz    560pf
10.1mhz 330pf
14mhz   270pf
18.1mhz 220pf
24.9mhz 150pf
28mhz   100pf
50mhz   68pf