‰  NOW 35 WPM  ‰
TAYLOE, N7VE, THE FIREFLY ATTEMPTS TO MARRY A SOFTWARE DEFINED RADIO SDR
SSB/CW RECEIVER WITH A CONVENTIONAL VARIABLE FREQUENCY CRYSTAL OSCILLATOR
VXO CW TRANSMITTER FOR A STATE OF THE ART RADIO SET THAT IS LOADS OF FUN TO
BUILD AND OPERATE.  THE STABLE TRANSMITTER HAS 3R5 W MINIMUM OUTPUT AND,
THANKS TO USING A DUAL CRYSTAL SUPER VXO CIRCUIT, NICELY COVERS MUCH OF THE
30 METER BAND.  A CW KEYER AND FULL BREAK IN QSK ARE INCLUDED ON THE BOARD.
ANOTHER VERSION OF THE FIREFLY KIT COVERS 20 METERS.  IN ESSENCE THE
FIREFLY PLACES THE FRUGAL QRPER ON THE CUTTING EDGE OF RADIO TECHNOLOGY.
THE RECEIVER REQUIRES A MODERN COMPUTER WITH SOUND CARD AND SPECIAL
SOFTWARE TO OPERATE MORE ON THIS LATER.  BASICALLY, AN SDR IS A HARDWARE
PLATFORM THAT, THROUGH THE USE OF ON BOARD FIRMWARE AND ASSOCIATED COMPUTER
SOFTWARE, CAN BE RECONFIGURED ON THE FLY WITHOUT RESORTING TO HARDWARE
MODIFICATIONS.  IF YOU HAVE AN SDR, YOU CAN CHANGE THE OPERATIONAL
CHARACTERISTICS OF THE RADIO SIMPLY BY MODIFYING THE COMPUTER SOFTWARE THAT
RUNS THE RADIO.  A FEW KEY STROKES OR MOUSE CLICKS AND YOU CAN ALTER IF
FILTER PERFORMANCE, CHANGE OPERATING MODES, CHANGE FREQUENCY, OR CALL UP A
‰  FROM PAGE 100  ‰
AA4XR/341 AA8CH/336 AB5EB/335 AD6W/339 AE5B/351 AI5B/340 AJ9C/339 CT1YH/337
DJ5AI/356 DJ9UM/345 DK5JI/341 DL1DUL/331 DL1KS/359 DL6CNG/331 DL6RAI/337
DL8FM/342 DL9OH/374 DS2BGV/331 EA1QF/343 EA3GHZ/331 EI6FR/334 F5XX/334
‰  END OF 35 WPM TEXT  ‰  QST DE W1AW  ƒ