INFORMATION
SHEET
Mobile Antenna Spring
Mark-6
GENERAL
Thank you for purchasing the Mark-6
spring. This spring is intended for very large whips and remotely-tuned HF
antennas. We hope you will enjoy many years of good mobile operation with
it. The Mark-6 is constructed of stainless steel, except for the tinned
copper braid, which is internally connected from one end to the other.
SPECIFICATIONS
Size: Approximately 2.57” diameter,
approximately 6.9” long
Weight: 4.875 pounds.
Bending torque: Approximately 39 foot-pounds for a 10 degree
deflection. Torque is measured with a perpendicular load applied 36 inches
above the spring base.
INSTALLATION
Install spring using a 1/2-13 stud or
bolt. If purchasing hardware from a hardware store, ask for GRADE-8, or
stainless. If using stainless hardware, be absolutely sure to use
anti-seize compound to avoid galling. A 1/2" stainless split-ring lock
washer may be used on either or both ends as desired.
Use the flats machined into the spring
ends for tightening, and for preventing the ends from turning in the
spring while tightening a whip or loading coil.
Occasionally, drop a few drops of LPS-3
into the top threaded hole. The LPS-3 will wick down into the tinned braid
to protect it from the elements. This is more important in wet climates.
