From left to right:

• 5V DC supply through the blue & black leads
• BC547 (2N2222 style) crystal oscillator
• BF245A (similar to MPF102) JFET buffer with resonant tank
• 74HC00 one gate for keying, remaining 3 gates in parallel as "Power Amplifier"
• Series tuned tank
• 4:1 transformer
• BNC output connector, +11 dBm @ 14.10111 MHz

The small vertical board above the TX is the PIC keyer.

Not shown in the picture are the step attenuator and the lowpass filter.

• July 3 2002, John Andrews, W1TAG, Massachusetts, USA
• July 4 2002, Jim Moritz, M0BMU, U.K.
• Your name here? (Hurry up! The sunspot number is going down!)

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

.-.-.