= NOW 20 WPM = TEXT IS FROM MARCH 2022 QST PAGE 48 = MOUNTED ANTENNAS CAN PICK UP NOISE THAT CAN BE NULLED, BUT NOISE PICKED UP BY AN ANTENNA SWINGING WILDLY IN THE WIND MIGHT NOT. USING THE QRM ELIMINATOR LETS START WITH THE CONCLUSION THE QRM ELIMINATOR WORKS, AND WORKS WELL, SOMETIMES. SOMETIMES IS NOT A CRITICISM, BUT JUST THE RESULT OF UNDERSTANDING THE ADVANTAGES AND DISADVANTAGES OF THE TECHNIQUE USED TO SUPPRESS NOISE. WHEN TESTING A RECEIVER OR TRANSMITTER, IF YOU SET THE CONTROLS AND CONNECTIONS ONE DAY, SHUT DOWN, AND THEN COME BACK THE NEXT DAY, YOU EXPECT TO GET THE SAME PERFORMANCE DAY TO DAY. NOISE, ON THE OTHER HAND, GENERALLY COMES FROM SOURCES THAT ARE RANDOM OR NOT WELL DEFINED, THAT MAY VARY FROM DAY TO DAY OR HOUR TO HOUR OR EVEN MINUTE TO MINUTE. TO TEST THE QRM ELIMINATOR, I USED MY HOME STATION TRANSCEIVER, AN = END OF 20 WPM TEXT = QST DE W1AW <