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5 Results Found For "noise"
InnovAntennas 50-LFA-4-LN 4-Element 50 MHz Yagi
InnovAntennas 50-LFA-4-LN 4-Element 50 MHz Yagi was specifically designed for city use in noisy environments. This Loop-Fed model is optimized for front-to-back performance on relatively short boom of 11.15 ft. (3.40 meters), to reject as much local noise as possible. This antenna offers very good forward gain of 9.4 dBi (14.9 dBi at 10m above ground), and an exceptional 32 dB front-to-back rating, and SWR less than 1.4:1 across the 50-50.5 MHz range. The low profile LFA dipole achieves a significant reduction of noise, allowing clear reception of much weaker signals, a key component of operational improvements and success. The 50-LFA-4-N includes a center mount boom to mast clamp for up to 2 inch masts (50mm) and is a sleek 1.77 sq. ft. wind load, making this beam ideal for typical 6 meter stations. It is also excellent for stacking to maximize gain, especially when available space restricts the use of a longer boom Yagi. It features a 1.25 in. (32mm) 16-guage square aluminum tubing boom for rugged reliability and low weight. This antenna is made with 1/2 inch (12.7mm) element center sections and 3/8 inch (9.525mm) for the outer elements. The antenna has fully insulated elements which will ensure continuous, high performance for many years to come, regardless of the weather conditions. The introduction of the loop-shaped and phase-fed dipole achieves considerably fewer side lobes in the Yagi directional pattern. With less energy absorbed from the sides and from behind, these antennas are quieter than typical 4 element beams to achieve a higher 6 meter performance level. The 50 MHz Monoband LFA Yagis from G0KSC represent a significant advancement in the development of Yagi antennas. They provide a low-noise front-end for your radio, so you hear more signals. This compact 4-element 50 MHz LFA provides stunning performance across the important section of the 6m band, 50.0 - 50.5 MHz. With a direct 50 Ohm feedpoint, no matching losses and suppression of unwanted noise, InnovAntenna 50-LFA-4-N is hard to beat!
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$489.99
InnovAntennas 162 MHz AIS LFA Yagis
InnovAntennas 162 MHz AIS LFA Yagis are vertically polarized Loop Fed Array (LFA) beam antennas designed specifically for 161.5 – 162.5 MHz range, featuring simplified installation with integral rear-mount mast brackets. Three models are offered, each performance optimized with extensive computer modeling. High quality materials are used in manufacturing, ensuring durability and high reliability. LFA Yagis inherently receive less ambient noise and are virtually impervious to the detuning effects of rain and ice that render non-loop antennas unusable. Adverse weather conditions and wind speeds of over 124 mph (200 km/h) are no problem for LFA Yagis. They feature a 50-ohm impedance, low-loss type N female connector. LFA antennas handle a maximum transmitter power of 5 kW. AIS is the maritime Automatic Identification System, a radio-based transponder system that automatically tracks and identifies ships at sea by broadcasting their position, speed, course, and other data. Its purpose is to prevent collisions, assist in search and rescue operations, and help vessel traffic services (VTS) monitor traffic. InnovAntennas 162 MHz AIS LFA Yagis are specially designed for professional use at coastal radio stations, for use with AIS repeaters and for suppliers of AIS systems. Of course, they are also ideal for anyone who would like to enter the exciting and fascinating world of AIS reception or take their existing equipment to the next level. Due to their frequency coverage, InnovAntennas 162 MHZ AIS LFA Yagis are also ideal for long range directional reception of the National Weather Service (NWS) NOAA Weather Radio transmitters broadcasting on 162.400 through 162.550 MHz.
Not Yet Reviewed
$305.99
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$421.99
InnovAntennas FM Broadcast 88-108 MHz OP-DES Yagi Antennas
InnovAntennas FM Broadcast 88-108 MHz OP-DES Yagi Antennas are an exciting development for the fascinating hobby of long distance (DX) reception of free, over-the-air broadcast FM radio. The OP-DES Yagi directional antennas are specially designed for better gain, great front-to-back and patterns with fewer side lobes, to dramatically improve your reception experience by helping your tuner or receiver achieve a new level of performance. For FM DX enthusiasts who own great FM Tuners and Receivers, pulling in new distant stations at full quieting is thrilling. Capturing a weak station while rejecting an on-channel stronger station can be especially gratifying. Hearing distant fringe and local stations at full fidelity without noise is the ultimate goal for FM audiophiles as well as FM DXers. Even HD Radio enthusiasts can increase their channel count with full sound quality and fewer dropouts. One of the distinctive design features of the OP-DES Yagi Antennas is a low feedpoint impedance that allows either 50 ohm or 75 ohm coaxial cable to be connected directly to the driven element, eliminating the losses of a transformer balun. With several boom lengths available, for the FM enthusiast on a budget, for the casual listener with a treasured vintage receiver, and for the most discerning FM Tuner audiophile, best-ever reception is possible with an InnovAntenna FM Broadcast OP-DES Yagi. InnovAntennas FM Broadcast 88-108 MHz OP-DES Yagi Antennas are available as: IVA-18484-0108 Compact and Space-Saving 8 element, 6.5 ft. boom, 9 to 10 dBi gain, typ. 24 dB f/b IVA-18484-0145 Cost-Effective Performance 11 element 12 ft. boom, 9.8 to 12.6 dBi gain, typ. 25 dB f/b IVA-18484-0110 High Performance 14 element, 18 ft. trussed boom, 10-13 dBi gain, 20 to 42 dB f/b IVA-18484-0112 Ultimate Performance 18-element, 24 ft. trussed boom, 11-14 dBi gain, 20 to 44 dB f/b Choose the InnovAntennas FM Broadcast 88-108 MHz OP-DES Yagi Antenna that is right for you. Immerse yourself in a world of music, news and entertainment and discover a clarity and fidelity that you never heard before on your FM Tuner or Stereo Receiver.
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$299.99
InnovAntennas VertiGO HF Vertical Antennas
InnovAntennas VertiGO HF Vertical Antennas cover multiple bands when fed as a non-resonant radiator using a remote antenna tuner mounted at the base. They can also be fed directly as a monoband vertical and are typically and most easily installed as a ground-mounted vertical, depending on the location and the support. To achieve the matching required by modern transceivers and amplifiers, other shortened vertical radiators use traps or coils but, those components contribute to losses; power lost as heat. InnovAntennas VertiGO Antennas radiate on all bands along their entire length. Radials are required for efficient operation of any HF vertical; 16 or more ground radials are better, where their length isn't critical. A remote tuner installed at the base of the antenna provides maximum efficiency and the best performance on the bands indicated. Higher frequencies will tune but higher angle patterns will limit performance. A ferrite bead choke should be used at the remote tuner on the coaxial cable from the station to prevent it from radiating and collecting RF noise. VertiGO Vertical Antennas from InnovAntennas are available in three different height versions, each with rugged aluminum tubing sections, swaged and slit at the top for the element clamps. Brackets and clamps are included for mounting to a user supplied support pipe.
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$399.99
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$475.99
InnovAntennas 144 MHz OWL Ultra Yagi Antennas
InnovAntennas 144 MHz OWL Ultra Yagi Antennas offer the 2 meter weak-signal enthusiast undeniable low-noise performance with amazing SWR bandwidth, particularly good gain and an excellent front-to-back ratio. Five Optimized Wideband Low-impedance (OWL) Ultra Yagi antennas are available, starting with six element up through ten element models. InnovAntennas' OWL Ultra Yagi beams have been extensively numerically simulated and optimized using special software that includes a 3D simulation of the boom, the insulators, the connector and the cable; an elaborate numerical simulation of these antennas that was inconceivable a decade before. InnovAntenna has achieved the best of what is technically possible for a wideband 2 meter Yagi. The boom of the 144 MHz OWL Ultra Yagi is 1 in. (25mm) square aluminum featuring through-the-boom insulated elements. The adjustable center fed folded dipole has the side opposite the 50 ohm feedpoint connected to the boom, which removes static charge to protect the transceiver. This antenna acts like a band-pass and noise filter outside the 2 meter band, due to rapidly rising impedance. However, the most important feature of OWL Ultra Yagi antenna is optimization for reduced side lobe in the elevation plane, achieving dramatically reduced received noise, even in high ambient noise city locations. The InnovAntennas OWL Ultra Yagis are suitable for all "weak signal modes" on the low end of the 2 meter band due to the optimization for high gain with incredibly low noise for EME, Meteor Scatter, Tropo-DX, Sporadic-E, etc. Despite the robust construction (the antennas can withstand wind speeds of up to 100 mph (160 km/h), the Yagis are still relatively light and thus suitable for smaller masts or for stacking several antennas. The OWL Ultra Yagis do not include a balun, as the coaxial cable connects directly to the loop driven element dipole. The antenna can handle 5 kW, but the recommended choke balun handles a maximum power of approx. 1.0 to 1.5 kW is possible. Exceptionally good SWR is achieved over a wide frequency range. With excellent gain to noise ratios (G/T ratio), the economical InnovAntennas OWL Ultra Yagis are well suited for use in stacked arrays, for EME, satellite or terrestrial operations. Each model listing describes the key benefits of the OWL Ultra Yagi Antennas. Your antenna is a part of your receiver and arguably the most important part of your station. You have spent thousands on radio equipment; make sure you don't short-change your set-up by choosing anything other than an InnovAntennas OWL Ultra Yagi.
Not Yet Reviewed
$274.99
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$469.99