Thank you for selecting
Scorpion
as your antenna!
Ron Douglass, NI7J
http://www.scorpionantennas.com
623-326-8780
All
Scorpion
antennas, SA- 680, SA-680S “shorty” and the SA6-160, are supplied with a 6 foot whip, allowing
efficient operation 10 through 80 or 160 meters. In addition, all antennas are shipped with 20 feet of antenna
control cable, control box with two #31 type material split beads for the antenna coax and control cable
decoupling, a cigarette lighter adaptor with fuse holder, and a shunt coil for antenna impedance matching.
Our antenna body is .065 inch wall 304 Stainless Steel, the strongest in the industry!
We use Acetal better known as DuPont Delrin® for the base of the antenna, the Pittman motor support, the ball
bearing support and the upper coil cap that supports the whip. This material is extremely expensive, it is dense
and heavy.
Our finger stock and coil support housing is polished 6061-T6 Aluminum. It houses the tin plated finger stock
and a one inch wide phenolic coil support. The housing also works as a heat sink during high power operation.
The finger stock is very expensive special order tin plated Beryllium Copper that maintains 37 pounds of
combined pressure on the coil at all times.
Our antenna coil drive motor is the commercial grade Pittman quality motor that uses all steel gears in its gear
box, not plastic. We install capacitors on our motors so tuning the antenna by ear is static free.
Our coil is driven with a piece of polished 316 grade 3/8-16 thread pitch stainless threaded rod. The threaded
rod is lubricated with very expensive Teflon grease that will withstand -40 to a plus 475 degrees Fahrenheit.
Our coil form is 1/4 inch wall Industrial grade phenolic that has a special resin base formula that is
manufactured to our specs. Our coil alone weighs 4.5 Lbs wound with wire.... so we use two double sealed ball
bearings for the coil support.