Small Magnetic Loop Antenna Project - QRPBuilder.com
Small Magnetic Loop Antenna Project - QRPBuilder.com
Small Magnetic Loop Antenna Project - QRPBuilder.com
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
D<br />
C<br />
B<br />
A<br />
2<br />
1 3 4 7 8<br />
5<br />
SEE DETAIL B<br />
TROMBONE STYLE<br />
CAPACITOR<br />
`15pF - 80pF<br />
SEE DETAIL C<br />
SEE DETAIL D<br />
SEE DETAIL A<br />
1.825" O.D. FIBERGLASS MAST SECTION<br />
(MILITARY SURPLUS)<br />
ALUMINUM BASE PLATE<br />
2<br />
CAUTION !!!<br />
1 3 4 7 8<br />
5<br />
REV<br />
ECO<br />
6<br />
DIMENSIONS - INCHES<br />
UNLESS SPECIFIED<br />
TOLERANCES ARE:<br />
ANG. # 0.5<br />
X # 0.25<br />
X.X # 0.1<br />
X.XX # 0.01<br />
X.XXX # 0.001<br />
6<br />
INITIAL RELEASE<br />
THE INFORMATION CONTAINED IN THIS<br />
DOCUMENT IS THE PROPERTY OF<br />
BENT RIVER MACHINE AND SHALL NOT BE USED<br />
OR DISCLOSED OUTSIDE OF BENT RIVER MACHINE<br />
WITHOUT WRITTEN AUTHORIZATION<br />
ENG: WA4MNT<br />
DO NOT SCALE<br />
SCALE: 0.048<br />
3RD ANG<br />
PROJECT<br />
TITLE<br />
DESCRIPTION<br />
THESE ANTENNAS ARE HIGH-Q RESONANT CIRCUITS.<br />
MANY KILOVOLTS CAN BE PRESENT ACROSS THE CAPACITOR,<br />
AND PRODUCE CONCENTRATED ELECTRO-MAGNETIC<br />
RADAITION EVEN AT LOW POWER LEVELS. FOR SAFETY,<br />
MAINTAIN A MINIMUM OF 6' AWAY FROM THE ANTENNA<br />
WHILE TRANSMITTING.<br />
NOTES:<br />
ALL COPPER ANTENNA ELEMENTS JOINED BY SILVER SOLDER<br />
ANY FASTENERS USED MUST BE 300 SERIES S.S.<br />
OPTIMUM HEIGHT IS TWO LOOP DIAMETERS ABOVE GROUND<br />
OPTIMUM RADIALS ARE ~2 LOOP DIAMETERS LONG<br />
FORMAT - B<br />
SHEET 1 OF 3<br />
WA4MNT 3' SMALL MAGNETIC<br />
LOOP ANTENNA 30m-10m<br />
DWG. NO.<br />
WA4MNT<br />
P.O. BOX 956<br />
CLARKDALE, AZ 86324<br />
928-639-3481 (VOICE)<br />
WWW.QRPBUILDER.COM<br />
LOOP_ASSY<br />
DATE<br />
08/08/10<br />
BY<br />
KL<br />
REV<br />
D<br />
C<br />
B<br />
A
Change language