14
2112 116TH AVE NE SUITE 1-5, BELLEVUE WA, 98004
WWW.STEPPIR.COM
TEL: (425)-453-1910 FAX: (425)-462-4415
SECURING THE COAX AND ELEMENT CONTROL CABLE TO THE BOOM
NOTES:
Take care not to bend the coax or control cable over any sharp corners of the boom
assembly, or particularly, the top plate on the antenna tower, or the coax/control cable could be
damaged. Do not clamp anything over the coax/control cable that could possibly pinch, or damage
it.
When taping the cable to the boom, start on the ends of the boom and work towards the mast plate.
This will allow you to trim the cable to the exact length if desired.
We recommend labeling all the wires at the terminal housing location. Knowing which wire goes to
each EHU could be very handy in the event of any control cable issues at a later date, when the
antenna is in the air!
Secure the coax and control cables from the EHU’s to the boom.
Use the outdoor electrical tape (09-0001) to secure the cable to the boom
Only two wraps of the tape are needed to hold the cable to the boom.
Tape the control cable and coax cable to the boom approximately every two feet.
Once both cables have been secured to the terminal housing or connector junction box, the con-
trol cable can be trimmed to length or coiled up and out of the way.
The actual wiring of the control cable will be addressed on the next page.
Below is a picture of an actual DB11 when fully installed. This will give you a birds eye view of how the
antenna should look when completed. Shown here is the prototype 40m dipole currently in development.
This DB11 is installed at the SteppIR factory, home of the SteppIR Amateur Radio Club - call sign
WB7IR
.
