‰  NOW 25 WPM  ‰  TEXT IS FROM AUGUST 2012 QST  PAGE 48‰

SHORT CIRCUIT MATCH WITH AN SWR LESS THAN 2 1.  IF YOU HAVE A SHORTED
ANTENNA FEED LINE ON 20 METERS AND THE TUNER FINDS A MATCH, ALL YOUR POWER
WILL BE DISSIPATED WITHIN THE TUNER.  YOU WILL PROBABLY DAMAGE THE AUTO
TUNER IF YOU TRANSMIT INTO IT WITH FULL POWER.  SO IF YOU DONT HEAR ANY
SIGNALS EITHER BEFORE OR AFTER A TUNE UP, YOU MIGHT WANT TO CHECK YOUR
ANTENNA SYSTEM BEFORE YOU START TRANSMITTING.  IT IS PROBABLY A GOOD IDEA
TO RECORD YOUR ANTENNAS UNTUNED SWR IN YOUR SHACK ON YOUR BANDS OF INTEREST
SO YOU CAN CHECK THAT NOTHING CHANGES OVER TIME.  THIS IS EASILY DONE BY
TURNING OFF AUTO TUNER POWER, WHICH BYPASSES THE TUNER.  43 FOOT VERTICAL
ANTENNA TESTING MY FINAL TESTS INVOLVED CONNECTING BOTH THE MFJ 994BRT AND
MFJ 998RT ANTENNA TUNERS TO THE BASE OF MY 43 FOOT VERTICAL FIGURE 1.
TUNING WAS VERY FAST, WITH INITIAL TUNING TYPICALLY OCCURRING IN LESS THAN
2 SECONDS AND TUNING FROM MEMORY ESSENTIALLY INSTANTANEOUS.  THE RESULTS
‰  END OF 25 WPM TEXT  ‰  QST DE W1AW  ƒ