From left to right:
The small vertical board above the TX is the PIC keyer.
Not shown in the picture are the step attenuator and the lowpass filter.
The Argo Screen capture below shows the signal as received by
John Andrews W1TAG on the other side of the Atlantic Ocean
on July 3 2002. Distance 5890 km. The output power was 5 mW into
a horizontal dipole, 9 meters above the ground, and keying speed
was QRSS3 (3 seconds per dot). Yes, ultra-QRP is FUN! Get rid of that
kW amplifier and get yourself a decent attenuator instead! :-)
The QRSS viewer "Argo" can be found at http://www.weaksignals.com
73 de Johan SM6LKM