Depending upon the final height of the dipole, the feed impedance can range from about 30 Ohms
up to about 75 Ohms. This is normal and will not affect the performance of the antenna.
15. Note the 1/2” tip section has not been drilled. Note also that it is 60” long. You can insert the
tip into the desired EXPOSED LENGTH. We recommend inserting to the desired EXPOSED
LENGTH. Use a compression clamp to hold the tip at the desired length. (see compression
clamp / tip assembly detail)
IF POSSIBLE , WE RECOMMEND TESTING THE FREQUENCY RESPONSE OF THE DIPOLE
AT THIS TIME AT A HEIGHT AT OR NEAR THE FINAL LOCATION. If this is not possible, then
drill the second set of holes, attach the hardware and tighten securely.
16. Once the Dipole is completed, re-check each element half for tight hardware and tight SET
SCREWS.
17. The dipole is now ready to be mounted on your 2” mast. 2” U-bolts and stainless steel 5/16"
lockwashers / nuts are supplied for mast mounting; THIS COMPLETES THE ASSEMBLY.
18. When mounting on your mast, the dipole is normally attached first, and aligned with or at 90
degrees to other antennas on the mast. Then the turnbuckle angle plate is attached and raised
above the dipole enough to lift the elements slightly until the inner two element sections are not
bowed down. However this is not critical unless you expect heavy ice loading. For this condition it
will help to raise the turnbuckle angle plate until the elements are tilted up slightly. Final small
adjustments of the element can be done with the turnbuckles. Be sure to safety wire the
turnbuckles once the final setting is achieved. Good luck and SEE YOU ON 40! De K6MYC.
THIS COMPLETS ANTENNA ASSEMBLY
M
2
ANTENNA SYSTEMS, INC.
4402 N. SELLAND AVE.
FRESNO, CA 93722
(559) 432-8873 FAX (559) 432-3059
www.m2inc.com Email: [email protected]
40M1L ASSEMBLY MANUAL
