- 20 -
larger excursion is desired, the antenna should be lowered and the length adjustment made to the
highest element section.
As a rule of thumb, one foot of length should be approximately 50 kHz in frequency. A shorter
antenna length = higher frequency and a longer antenna length = lower frequency.
Optional Items
DXE-VFCC-H05-A - 2/5 kW Vertical Feedline Current Choke for Coaxially Fed 50 Ω HF Vertical Antennas
The Advantages of Using a VFCC:
Prevents unwanted RFI by eliminating feedline current and radiation
All power goes to the antenna, improving efficiency
Reduces noise or unwanted signals picked-up by the feedline
Overcome a less than optimal ground system
Bracket isolates the VFCC case from ground for best decoupling
DXE-RADP-3
-
Radial Plate
(
patented
):
Made from Laser Cut Stainless Steel with 20 Sets of Stainless Steel Radial Attachment Hardware. The DX
Engineering Radial Plate is meant for those of you having a vertical antenna and want an easy, neat and effective
way to connect those essential radial wires to your antenna system for the highest efficiency and strongest signals.
DXE-SSVC-2P - Stainless Steel V-Clamp for steel pipe, 2 inch V-bolt
This V-Clamp is made in one size that fits Steel tubing or pipe from 1" to 2'' OD as used in antenna construction. The supplied V-
bolt is long enough to attach tubing to thick plates and is made with anti-corrosive properties. The special Stainless
Steel saddle has serrated teeth will clamp to the pipe securely by biting into the surface. For this reason, it is not
recommended for softer aluminum tubing or pipe. Ideal for fastening a radial plate and antenna mounting to a steel
pipe.
Used to clamp 1 to 2'' (OD) steel tubing or pipe
Designed for attachments that don't require resistance to torque
V-bolt and saddle made from high-strength 18-8* stainless steel
*The use of an anti-seize compound is HIGHLY recommended to achieve proper torque and prevent galling.
DXE-RADP-1HWK - Radial Plate Wire Attachment Hardware Kit
- Stainless Steel
Additional 20 Sets of ALL Stainless Steel Radial Hardware for use with the DX Engineering Stainless Steel Radial Plate.
(20) 1/4'' Bolts - (20) 1/4'' Nuts - (20) 1/4'' Flat Washers
(20) 1/4'' Split Washers - (20) 1/4'' Star Washers
DXE-363-SST - Bulkhead Fitting, SO-239 Socket, Silver Plating, Teflon® Insulation
This hi-quality bulkhead connector uses silver plated outer and inner conductors and a Teflon® insulator. The connector has very low
loss and high electrical break down. It comes with two nuts to secure the connector to our radial plate or other flat
surface. Perfect for use with the DX Engineering Radial Plate, (
DXE-RADP-3
) it ensures the radial ground system, the
antenna ground and the feedline shield are common. Don't forget to waterproof coaxial connections.
Silver plated, Teflon® insulated, Very low loss, High electrical break down
2 in. long
