YouKits EK-1A Assemble Manual Download Page 1

EK-1A 3 Band CW QRP Transceiver kit 2014

Assemble manual

EK-1A 2014 3 Band (40m, 30m,20m) CW QRP transceiver kit is easy to build, it has SMD finished by the
factory. There are 2pcs of PCB, the main board and display board. To guarantee the building success, the
display board and main board have been assembled and tested including the MCU, LCD and DDS.

Summary of Contents for EK-1A

Page 1: ...nd 40m 30m 20m CW QRP transceiver kit is easy to build it has SMD finished by the factory There are 2pcs of PCB the main board and display board To guarantee the building success the display board and...

Page 2: ...rs 100uF 2 C27 C28 IF Transformer 2 T1 T2 Toroid Black core 1 T3 Magnetic inductance Red core 2 L1 L2 enamel insulated wire red yellow 0 5meter each Transistor 2078 1 Q9 LED indicator 5mm red 1 LED re...

Page 3: ...lated wire about 20cm make 10 turns As above T1 transformer is 8 2 please use red enamel insulated wire about 15cm make 8 turns as primary Use yellow enamel insulated wire about 6cm make 2 turns as se...

Page 4: ...9 never install them in wrong direction 2 K1 LED R30 PHONE are all installed at back side of PCB please check below pic 3 After installing all other parts please install the the back cover and secure...

Page 5: ...rator to ANT put generator with a 5uV signal adjust frequency to 7 100Mhz or close to this frequency put EK 1A on same frequency now adjust VC to receive a 700Hz beat frequency then adjust T1 T2 to ma...

Page 6: ...iting for 2 second display change to below Put your frequency counter to DDS testing point the pad close to R27 Now the frequency counter reading should be same as screen display 10000 00KHz please ad...

Page 7: ...30M band MOD 30m band only has RX at factory default if you need 30m TX connect A right side of R4 on front display board then you have 40m 30m 20m RX and TX Youkits 2014 12 06...

Reviews: