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Any F12 guru's lingering about ? Just finished putting together a C4. =
Can anyone comment on the expected VSWR changes for the 40M element as =
the antenna is raised. At five feet, the EF-140S is low at about 6.65 =
MHz. I can move the linear loading jumpers way out to bring the antenna =
up to 7.08 MHZ, BUT the jumper locations are out at about 35 inches not =
14-18 inches as specified. Should I just wait until it's "up the tower" =
to make the adjustments or raise the antenna to a higher level (10 - 15 =
feet ?) and try again ? Am I just too close to the ground to get an =
accurate measurement ? Adjusting this element after the antenna is on =
the mast looks tricky !
=20
tks es 73,
=20
Bob N6RFM
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<DIV><FONT size=3D2>Any F12 guru's lingering about ? Just finished =
putting=20
together a C4. Can anyone comment on the expected VSWR changes for =
the 40M=20
element as the antenna is raised. At five feet, the EF-140S is low =
at=20
about 6.65 MHz. I can move the linear loading jumpers way out to =
bring the=20
antenna up to 7.08 MHZ, BUT the jumper locations are out at about 35 =
inches not=20
14-18 inches as specified. Should I just wait until it's "up =
the=20
tower" to make the adjustments or raise the antenna to a higher =
level (10 -=20
15 feet ?) and try again ? Am I just too close to the ground to =
get an=20
accurate measurement ? Adjusting this element after the antenna is =
on the=20
mast looks tricky !</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>tks es 73,</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>Bob N6RFM</FONT></DIV></DIV></BODY></HTML>
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