Wednesday, November 16, 2016

LZ1DPN-CW1 QRP CW transceiver


HomeBrew modified EK1A (Small Wonder Labs SW40 China cloning) CW QRP transceiver

SOME PICTURES:

















FIRST TEST VIDEO:



LAST VIDEO:









Schematic diagram (now transceiver have another one stage at RF amplifier with IRF510 - like my other CW projects):


http://www.schematics.com/project/ek1a-lz1dpn-46277/


5W PA - Part from Farhan's JBOT amplifier (this amplifier is not used now):








With this LPF and PA, now transceiver work well in transmit mode on 3.5 , 5, 7, 10 MHz for other band You should to recalculate LPF ( http://www.calculatoredge.com/electronics/ch pi low pass.htm ).

ALL SCHEMATICS AND SOURCES:

https://github.com/LZ1DPN/CWTRX0to30MHzv2/

Components price:  ~50$ from ebay


73 ES MNI DX'es!LZ1DPN