Transcription of The MRX-40 Mini Receiver
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The MRX-40 Mini Receiver
The MRX-40 mini ReceiverQST September 1997, pp. 59-60 Copyright 1997 by the American Radio Relay League, Inc. All rights reservedAfter exploring very low power (QRPp) communica-tion by building a 40 meter Micronaut CW transmitter,1I took on the challenge of constructing a tiny 40 metercompanion Receiver . Not only did I think the receiverwould complement the Micronaut, I thought it might also havepotential as a kit project for my hometown group, the CQRP (Co-lumbus, Ohio, QRP) Club. The final push to action came from thediscovery that there were 93 licensed amateurs in my neighbor-hood ZIP code. Visions of a local mini -milliwatt net flashedthrough my imagination!The result is the MRX-40 , a 40 meter CW Receiver barely largerthan a half dollar. You don t need to have a Micronaut transmitterto use the MRX-40 . This Receiver can be paired with any 40 metertransmitter low power or DetailsThe main design objectives for the MRX-40 were small sizeand simplicity.
475 East North Broadway Columbus, OH 43214 e-mail saborns@freenet.columbus.oh.us From left to right, the Micronaut transmitter, MRX-40 receiver and an equally small key (made by DK7UD).
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