Last update: 3/23/04
Campbell, KK7B's, modules and the QST articles
DC receiver: "High-Performance Direct-Conversion
1992 (online at http://www.arrl.org/tis/info/pdf/9208019.pdf).
You still need to read this even if you're interested in the R2
The R2 single-signal direct conversion
receiver (a kind of
exciter in reverse!): "High-Performance, Single-Signal
Receivers", January 1993 (online at http://www.arrl.org/tis/info/pdf/9301032.pdf)
The T2 phasing SSB exciter: "A Multimode Phasing
for 1 to 500
April 1993 (online at http://www.arrl.org/tis/info/pdf/9304027.pdf)
Using these as a 2-meter microwave
SSB/CW Transceivers", May 1993
The miniR2 RX board (smaller, less current draw) and
20 meter CW station: "A Small High-Performance CW Transceiver",
The author revisits the noise figure
Noise Figure, in "Technical Correspondence," February 1996, and
several significant and excellent mods!
|The basic modules
are available as kits (or you can get
boards) from Kanga US.
The original R2 is not now available, but the R2Pro and miniR2 are
available, and you can get a PC
board template for the original R2 article in .pdf format from ARRL.
John Seboldt, K0JD, Milwaukee, WI
Email to: k0jd at seboldt dot net (not spamfoil - translate to
e-mail-ese ;-) )
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