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InnovAntennas Parts and Accessories
InnovAntennas Ferrite Bead Baluns
InnovAntennas Ferrite Bead Baluns are fully assembled and ready to install, to achieve the absolute best performance from an InnovAntennas Yagi or other balanced terminal antennas. In contrast to wound baluns, ferrite bead choke baluns have the advantage of covering a wide frequency range for multiple bands. As required for most Yagi antennas from InnovAntennas with 50 ohm direct feed, ring terminals are installed on one end for the studded feedpoint connection. The other end is terminated in either Type-N or SO-239/UHF Female for the appropriate band coverage and impedance. Heat shrink filled with a UV-resistant adhesive provides a waterproof cover over the ferrite beads on the cable and the connector. Why do I need a Balun on my Yagi? Ferrite Bead Baluns offered by InnovAntennas provide very important functions of a balun, which is not well understood. For proper antenna performance, a ferrite bead balun inhibits common-mode current two important ways; A) it prevents RF flow on the outside the coax shield cable when transmitting, and B) it prevents stray RF noise picked up by the coax cable shield from entering the antenna system and affecting the receiver. What happens on the antenna without a RF choke balun? Several problems can occur. When an unbalanced feedline is connected directly to a balanced antenna with no BALUN in place, common-mode currents will run on the outside of the coaxial cable shield. The Yagi feedpoint is forced out of balance causing a skew and diminished beam antenna pattern and gain. A loss of Front-to-Back ratio (F/B) can occur, as well as detuning that affects antenna frequency, potentially causing increased SWR. In addition to the pattern distorting performance drop, radiation from the antenna feedline can cause interference to home and business electronics. The other very important benefit of using a wideband ferrite bead balun is to reduce received noise in certain situations. While the noise produced by many household products is normally at very low levels, sensitive ham radio receivers can be affected, which can prevents weak signals being heard. RF noise picked up on the coax cable shield will enter the antenna system feedpoint when no ferrite bead choke balun is installed at the feedpoint.
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$108.99
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$119.99
InnovAntennas 144MHz Current Baluns
InnovAntennas 144MHz Current Baluns help to keep common mode currents off your feedline and they ensure that you get the best performance out of your antennas. These InnovAntenna baluns feature a ferrite core covered in a glue filled UV stable heat-shrink. Ring terminals allow for easy connection to the feed point of your Yagi antenna. Why use a balun? When an unbalanced coaxial feedline connects to a balanced antenna, unwanted currents can flow along the coax, distorting your antenna pattern and reducing its Front-to-Back ratio. These currents can also introduce RF interference in your home and even your neighbors' homes. Additionally, the coax can act as an antenna, picking up noise and degrading weak-signal reception. InnovAntennas 144MHz Current Baluns prevent these issues by properly matching your antenna's balanced feedpoint to your unbalanced coax system.
Not Yet Reviewed
$119.99
InnovAntennas DB-664 Compact 6 and 4 Meter Dual Band Yagi
InnovAntennas DB-664 Compact 6 and 4 Meter Dual Band Yagi has a total of 6 elements; three elements are for 50 MHz and three are for 70 MHz, available on many radios made for the European market. For those in North American, where the 70 MHz band allocation doesn't exist, several late model transceivers, including the Yaesu FTDX10 and the Icom IC-7300, offer receive coverage of the 4-meter band. Even though transmit is disabled in NA, the 70 MHz band may be monitored for signals arriving from Europe, for those interested in VHF propagation. The InnovAntennas DB664 Dual Band Yagi stands apart from the crowd due to the methods used for its design. It has no traps or coils, no phasing arrangements, and has no need for "compromise" spacing between elements. This antenna has a set of correctly spaced elements for each band but requires only one feed point. The DB-644 is an excellent antenna with great SWR bandwidth and performance in one package. Specifications of the InnovAntennas DB664 Compact 6 & 4 Meter Dual Band Yagi: * Gain: 50MHz: 6.83dBi at 50.150MHz (12.44dBi 10 m above ground); 70MHz: 7.05dBi at 70.200MHz (12.76dBi 10 m above ground) * F/B on 50MHz: 10.12dB at 50.150MHz; 70MHz: 18.23dB at 70.200MHz * Power rating: 3kw * SWR: Below 1.3:1 from 50.00MHz to 50.500MHz; Below 1.5:1 from 69.950MHz to 70.600MHz * Boom length: 3.86 ft. (1.175m) * Turning radius: 1.48 ft. (1.484m) * Weight: 4.5 lbs. (2 kg) * Wind loading: 0.63 sq. ft. (0.15 sq. m) * Wind survival: 150 mph (241 kph) The InnovAntennas DB664 antenna has 6-meter element with 1/2 in. (12.7mm) center and 3/8 in. (9.525mm) outer elements and the 4-meter elements are one-piece 1/2 in. The antenna has fully insulated elements which will ensure continuous, high performance for many years to come. The boom-to-mast brackets and clamps included with all antennas will support 2 in. (50mm) masts. The rigid, heavy-duty boom is 1.25 in. square 16-guage aluminum and marine-grade stainless steel hardware is used. The antennas are constructed with the best quality materials to achieve the best mechanical construction, not the cheapest or most profitable. A digital caliper is used to measure the elements during production to ensure they are within 0.2mm of what they should be. This ensures that each antenna works as well as InnovAntennas' software model predicts. Note: Much development time has gone into InnovAntennas antennas, not just on basic electromagnetic design. They are able to model the effect of insulators, booms, and other objects to ensure the components of our antennas have the least amount of effect on performance and pattern degradation.
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$229.99