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DXE-RFCC-1 - Receive Feedline Current Choke, 50 Ω to 75 Ω 300 kHz to 30 MHz
If you wish to reduce feedline radiation and improve reception, a Feedline Current Choke is recommended if your SWR is already
low. Adding a DX Engineering Feedline Current Choke at the point where the feedline exits the
area of the antenna will substantially reduce unwanted feedline radiation or reception without the
need for improved station grounding.
The advantages of using an FCC
:
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
The DX Engineering RFCC-1 receive feedline common-mode choke is the most effective solution to common-mode noise or
unwanted signal ingress available to date. The DX Engineering RFCC provides thousands of ohms isolation between the input and
output coaxial shield connections while passing desired signals, including dc or low frequency ac control signals. The RFCC has
extremely high isolation impedance which effectively blocks common-mode noise or unwanted signals, even in the presence of very
poor grounding. Low noise receive antennas are traditionally located away from electrical wiring and other noise sources.
Unfortunately, noise and other unwanted signals have a direct path to your low-noise antenna through the feedline shield connections
between the station equipment and antenna. Unwanted signals can also energize the outside of the feedline shield, and this undesired
signal energy can be conducted directly to the receiving antenna. This can reduce antenna directivity. Unless you have a perfect zero-
resistance RF ground at the antenna, some of the common-mode noise or unwanted signals from the feedline shield will make it into
the antenna. The RFCC is effective from 300 kHz to 30 MHz. It comes with standard CATV type “F” female connectors, although it
can be used in any 50 to 75 Ω receiving system. The RFCC is a passive device, therefore requires no power to operate.
Technical Support
If you have questions about this product, or if you experience difficulties during the installation,
contact DX Engineering at (330) 572-3200. You can also e-mail us at:
For best service, please take a few minutes to review this manual before you call.
Warranty
All products manufactured by DX Engineering are warranted to be free from defects in material and workmanship for a period of one
(1) year from date of shipment. DX Engineering’s sole obligation under these warranties shall be to issue credit, repair or replace any
item or part thereof which is proved to be other than as warranted; no allowance shall be made for any labor charges of Buyer for
replacement of parts, adjustment or repairs, or any other work, unless such charges are authorized in advance by DX Engineering. If
DX Engineering’s products are claimed to be defective in material or workmanship, DX Engineering shall, upon prompt notice
thereof, issue shipping instructions for return to DX Engineering (transportation-charges prepaid by Buyer). Every such claim for
breach of these warranties shall be deemed to be waived by Buyer unless made in writing. The above warranties shall not extend to
any products or parts thereof which have been subjected to any misuse or neglect, damaged by accident, rendered defective by reason
of improper installation, damaged from severe weather including floods, or abnormal environmental conditions such as prolonged
exposure to corrosives or power surges, or by the performance of repairs or alterations outside of our plant, and shall not apply to any
goods or parts thereof furnished by Buyer or acquired from others at Buyer’s specifications. In addition, DX Engineering’s warranties
do not extend to other equipment and parts manufactured by others except to the extent of the original manufacturer’s warranty to
DX Engineering. The obligations under the foregoing warranties are limited to the precise terms thereof. These warranties provide
exclusive remedies, expressly in lieu of all other remedies including claims for special or consequential damages. SELLER
NEITHER MAKES NOR ASSUMES ANY OTHER WARRANTY WHATSOEVER, WHETHER EXPRESS, STATUTORY, OR
IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS, AND NO PERSON IS AUTHORIZED TO
ASSUME FOR DX ENGINEERING ANY OBLIGATION OR LIABILITY NOT STRICTLY IN ACCORDANCE WITH THE
FOREGOING.
©DX Engineering 2012
DX Engineering®, DXE®, DX Engineering, Inc.®, Hot Rodz™, Maxi-Core™, THUNDERBOLT™, Antenna Designer™, Yagi
Mechanical™, and Gorilla Grip
®
Stainless Steel Boom Clamps, are trademarks of PDS Electronics, Inc. No license to use or
reproduce any of these trademarks or other trademarks is given or implied. All other brands and product names are the trademarks of
their respective owners.
Specifications subject to revision without notice.
