‰  NOW 30 WPM  ‰  TEXT IS FROM DECEMBER 2018  QST  PAGE 30 ‰

STATION, EITHER AS A PRIMARY RECEIVER OR S A PANADAPTER OR DSP SECOND
RECEIVER CONNECTED TO THE IF OF AN EXISTING RECEIVER.  EVEN AN INEXPENSIVE
RTL SDR CAN BECOME A VERY USABLE RECEIVER WHEN THE NEEDED FUNCTIONS ARE
PROPERLY INTEGRATED.  VERSA TR PUTS EVERYTHING ONTO A COMPACT PC BOARD SEE
THE LEAD PHOTO USING ALL THROUGH HOLE CONSTRUCTION.  THE VERSA TR ALSO
WORKS WITH CONVENTIONAL ANALOG TRANSMITTERS AND RECEIVERS OR TRANSCEIVERS.
SOME POSSIBLE STATION CONFIGURATIONS INCLUDE A CONVENTIONAL TRANSMITTER
WITH AN SDR RECEIVER, A CONVENTIONAL TRANSMITTER AND RECEIVER, A
CONVENTIONAL TRANSCEIVER WITH AN SDR PANADAPTER OR SECOND RECEIVER, AND A
CONVENTIONAL TRANSMITTER WITH MULTIPLE RECEIVERS.  THE VERSA TR
INCORPORATES A VERSATILE RF SENSING RELAY THAT CAN ALSO BE USED FOR KEYING
A LINEAR AMPLIFIER OR LIGHTING AN ON AIR SIGN.  CIRCUIT DESCRIPTION THE
VERSA TR SCHEMATIC DIAGRAM IS SHOWN IN FIGURE 1.  IT INCLUDES FOUR MAJOR
CIRCUIT FUNCTIONS AN RF ACTUATED SWITCH, ANTENNA RELAY, MUTING RELAY, AND
SIDETONE OSCILLATOR.  A VERSA TR HOOKUP IS ILLUSTRATED IN FIGURE 2.  THE
BOARD REQUIRES 5 V AT 200 MA, PROVIDED BY THE 5 V USB POWER SUPPLY VIA A
‰  END OF 30 WPM TEXT  ‰  QST DE W1AW  ƒ