‰  NOW 30 WPM  ‰  TEXT IS FROM SEPTEMBER 2016 QST  PAGE 51‰

METERS.  THE DISPLAYED FREQUENCY OF 4R061 MHZ IS THE UPPER FREQUENCY LIMIT
OF THE SWEEP.  CONCLUSION THE CAA 500MARKII IS A REASONABLY PRICED
HF/VHF/UHF ANTENNA ANALYZER.  THE LARGE CROSS NEEDLE METER IS NICE WHEN
MAKING ANTENNA SYSTEM ADJUSTMENTS.  AND ALTHOUGH IT IS SMALL, THE COLOR LCD
PROVIDES ADDITIONAL SWR AND IMPEDANCE INFORMATION, AS WELL AS BAND SWEEPING
CAPABILITY.  A PADDED NYLON SOFT CASE WITH SHOULDER STRAP AND BELT LOOP IS
AVAILABLE TO PROTECT THE INSTRUMENT DURING FIELD USE.  YOU CAN INVESTIGATE
THE CAA 500MARKII FURTHER BY VIEWING THE MANUAL ON THE COMET WEBSITE.  DX
CONNECTION QSK 2500 HIGH POWER EXTERNAL QSK SWITCH REVIEWED BY PHIL SALAS,
AD5X AD5X ARRL. NET  A FEW YEARS AGO, AN ARRL WEBSITE POLL INDICATED THAT
APPROXIMATELY 30 OF AMATEURS HAVE AN AMPLIFIER.  ONE OFTEN OVERLOOKED ISSUE
IS TRANSCEIVER/AMPLIFIER TIMING, ESPECIALLY FOR THOSE WHO OPERATE CW.  THE
TYPICAL AMPLIFIER WITHOUT FULL BREAK IN QSK CAPABILITY USES A TRANSMIT
RECEIVE TR RELAY THAT TYPICALLY TAKES 12 20 MILLISECONDS TO SWITCH AND
SETTLE.  MOST TRANSCEIVERS HAVE A DEFAULT RF DELAY AFTER AMP KEY TIME THAT
IS LESS THAN THIS, ALTHOUGH MANY MODERN TRANSCEIVERS OFFER AN ADJUSTABLE
‰  END OF 30 WPM TEXT  ‰  QST DE W1AW  ƒ