Ads
related to: coiled coax choke balun line adapter- F Patch Cables
Get quantity discount pricing on
F patch cables. Up to 250+!
- Cat6 Patch Cables
Quantity Discounts as low as $2.13
All Colors and Lengths.
- Bulk Cable
Buy network, telephone, coax, audio
& video cables and wire in bulk!
- Plenum A/V Cables
HDMI, VGA, DVI, S-Video & more.
Bulk Discounts & Same Day Shipping
- F Patch Cables
Search results
Results From The WOW.Com Content Network
An RF choke can be used in place of a balun. If a coil is made using coaxial cable near to the feed point of a balanced antenna, then the RF current that flows on the outer surface of the coaxial cable can be attenuated. One way of doing this would be to pass the cable through a ferrite toroid.
This simple RF choke impedes signals passing on the outside of the braid, which helps to cure television interference. A braid-breaker is a filter that prevents television interference (TVI). In many cases, TVI is caused by a high field strength of a nearby high frequency (HF) transmitter, the aerial down lead plugged into the back of the TV ...
For example, on unbalanced coax transmission lines (such as video cables), the cable is designed to contain the signal, and beads can be used to block stray common mode current from using the cable as an antenna while not interfering with the signal carried inside the cable. In this use, the bead is a simple form of a balun.
Transformers, autotransformers, and baluns are sometimes incorporated into the design of narrow band antenna tuners and antenna cabling connections. They will all usually have little effect on the resonant frequency of either the antenna or the narrow band transmitter circuits, but can widen the range of impedances that the antenna tuner can match, and/or convert between balanced and ...
The most widely used types of feed line are coaxial cable, twin-lead, ladder line, and at microwave frequencies, waveguide. Particularly with a transmitting antenna, the feed line is a critical component that must be adjusted to work correctly with the antenna and transmitter. Each type of transmission line has a specific characteristic impedance.
By winding the coax into a coil around some ferite as depicted, these differeneces are eliminated (or at least greatly reduced) by a choking action thus balancing the signal on one end of the device regardless of what is happening on the other.Euc 12:50, 17 June 2012 (UTC) The choke balun does act as a transmission line transformer.