‰ NOW 5 WPM ‰ TEXT IS FROM JANUARY 2015 QST PAGE 52 ‰ SETTLED BEFORE RF IS APPLIED TO THE INPUT. IF THE RELAYS ARE NOT CLOSED WHEN RF IS APPLIED CALLED HOT SWITCHING, RELAY CONTACTS CAN BE DAMAGED FROM THE HIGH POWER PRESENT. TABLE 1 SHOWS HOW LONG IT TAKES FOR THE AMPLIFIER ƒ QST DE W1AW ‰ TO SWITCH BETWEEN RECEIVE AND TRANSMIT. IDEALLY, AT THE BEGINNING OF EACH TRANSMISSION, FIRST YOU WOULD SWITCH THE PREAMP OUT OF THE LINE, THEN ‰ END OF 5 WPM TEXT ‰ QST DE W1AW ƒ