Move the antenna coil all the way down (collapsed) by pushing the bottom (cable end) of the
rocker switch.
“If the antenna moves in the upward direction, exchange the quick disconnect power lead
connectors at the antenna”
Tune your radio to 20 or 40 meters. Push the top of the rocker switch; this will cause the antenna coil to start
going up. Listen closely to your radio. As the coil is going up the white noise will start increasing. It will get
louder as the coil becomes resonant on the band you are listening to so watch your S meter and adjust the
antenna up and down for maximum receive signal strength.
If you are tuned to where you can hear a conversation the receiver will get louder faster because of signal
strength. Once you tune by ear you will be surprised as to how close you are after you check the SWR.
With the coil all the way down in the Stainless tube you are positioned for 10 meters using the 6 ft whip.
With the coil all the way up you will be at the bottom of the 80 meter band “3.5MHz”or “1.8 MHz” on the 160
meter band depending on the antenna you purchased when using the six ft whip.
With the 6 ft whip you will have continuous tuning from 10 to 80 meters or 10 to 160 meter depending on the
antenna!
Either the 80 or the 160 meter antenna is most efficient with a 102 inch whip,
but you will only be able to
tune as high as the 15 meter band.
Any band higher will require a 6 ft whip.
Any screwdriver antenna will perform better on the 40, 80 or on the 160 meter band with a 102 inch whip!
Most people do not like a long whip that tall so we recommend using a capacitance hat of at least 36 inches in
diameter. The capacitance hat has to be installed a minimum of 24 inches above these large coils, 36 inches is
better still.
The antennas efficiency and performance will be increased when the least amount of coil is exposed.
Capacitance hats are designed to work there best on the 40, 80 and especially on the 160 meter band.
Our Caphat is supplied with three stainless rods that will enable a 36 inch hat. Our support shaft is 36 inches in
length.
The best site we have found that is loaded with HF mobile install info is
www.K0BG.com
. Alan Applegate is
the king of mobile install info. He will reply if you have a question about anything on his site. I would read
everything on his site before doing any mobile install…YES it is that good!
Also, go to Tom Rauch
www.W8JI.com
. We have links for Alan’s and Tom’s site at the bottom of our home
page under
Links
. Tom is the Engineer for DX-Engineering. Take a look at all of the mobile Antenna testing he
has done…he has a lot of good info to study and learn from. You will not be sorry you did!
If you are having issues with tuning, don’t get discouraged,
a lot of times its something simply over looked … we know… we still do it!
Please give us a call.
Thank You for purchasing our product!
Ron Douglass NI7J
Scorpion Antennas.com
scorpionantennas@cox.net
623-326-8780
