12. OVERHEAD BOOM SUPPORT SYSTEM.
Install a temporary mast if possible to get the overhead system just right before installing the antenna.
Attach one end of the HPTG-4000 Philistran cable at the eyebolt at the REAR end of the boom.
Install a thimble or cable eye in the eyebolt. Secure the cable using two 1/4” cable clips. Repeat at
the other eyebolt. Attach the turnbuckle plate to the mast about 5 feet above the boom to mast
plate. Open the 3/8 forged JAW AND EYE turnbuckles till just one thread is showing inside the of
the turnbuckle. Attach the JAW end of each turnbuckle at the plate. Insert a thimble or cable eye
in each turnbuckle eye and then attach the two HPTG-4000 cable, tensioning the cables and
securing with two more clips on each. Do final boom straightening with the turnbuckles now or at
the time of installation on the tower.
13. Check ALL hardware for tightness. Check ALL element sections, especially tip sections, for correct
placement. Make any final adjustments to linear loading tension.
14. Attach feedline section to balun. Route from element #8, back to boom to mast plate. Secure at
regular intervals with tape or nylon ties.
15. When mounting this log periodic on a tower or mast with other antennas there may be interaction
with other nearby antennas, particularly if they are resonant in the 8 to 30 MHz band. In general
VHF and/or UHF antennas mounted for HORIZONTAL POLARITY should be at least 40 inches
above or below the log antenna. Use good quality 50 Ohm feed line to feed the log and be sure
your tower and rotator system can handle to wind area and weight of this antenna.
THIS COMPLETES ANTENNA ASSEMBLY
M
2
ANTENNA SYSTEMS, INC.
4402 N. SELLAND AVE.
FRESNO, CA 93722
(559) 432-8873 FAX: 432-3059
www.m2inc.com
Email:
8-30LP9 ASSEMBLY MANUAL
Summary of Contents for 8-30LP9
Page 5: ...8 30LP9 DIMENSION SHEET ...
Page 6: ...8 30LP9 ELEMENT ASSEMBLY ...
