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37 Results Found For "noise"
SSB Electronic LNA Series Low-Noise Preamplifiers
SSB Electronic LNA Series Low-Noise Preamplifiers are newly developed low-noise receiving amplifiers for the 6m, 2m and 70cm bands, featuring super low noise with high gain, making them ideal for use in EME (moon bounce), MS (meteor scatter), Aurora and tropo-DX operations. High performance is reflected in exceptional IP3 test figures (35dBm, typical), to provide strong signal immunity. Very good rejection of strong signals near and far guarantees interference-free operation, even in the vicinity of other radio transmissions from commercial and broadcast stations as well as mobile carriers. The input circuit of the amplifier is built with high quality components in a chamber construction, optimized for the best noise characteristics. The bandpass at the output of the amplifier ensures very good in-band selection with signals outside the pass band effectively suppressed. The LNA Series Preamplifiers do not have RX/TX relays and are intended for receiving applications. LNA Series Preamplifiers are built in a sturdy tinplate housing, suitable exclusively for indoor applications (Ip41 to DIN EN 60529). Choose between models that have two Type-N female connectors, Type-N Male and Female, and SMA female. These amplifiers can be powered via an external cable or via a coaxial bias tee (remote power supply). The -MA weatherproof variant of the receive-only LNA series is characterized by a robust, IP44-protected housing, allowing the high-quality preamplifier to be mast-mounted close to the antenna using Type-N connectors only. Power is supplied exclusively over the coax. If your receiver does not output 12-15 VDC receive preamplifier power onto the antenna feedline, use the SSB Electronic DCC-5000PRO Bias Tee (remote power inserter).
Not Yet Reviewed
$316.99
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$494.99
SSB Electronic LNA-30 Broadband 5 kHz – 30 MHz Low Noise Mast-Mount Preamplifiers
SSB Electronic LNA-30 Broadband 5 kHz – 30 MHz Low Noise Mast-Mount Preamplifiers cover the VLF, LF, and MF range, including the 2200 through 10 meter Amateur bands. Only for receiving applications, the LNA-30 is used to transform a simple wire or small whip antenna into a powerful broadband receiving antenna. This allows, for example, an SDR receiver to be operated in an unfavorable location with limited space and still deliver very good results. A skimmer or The LNA-30 amplifies the signals received by about 20 dB. The operating power can be varied for effect from 12 and 24V, with higher gain achieved at 24V, but the lowest figure at 12V. A very RF quiet, well filtered linear power supply should be used, not a switching power supply, which connects to this mast-mounted preamplifier via a separate coaxial cable; a UHF female handles the power input. The LNA-30 handles the RF separately with Type-N female connectors for antenna and receiver. When power is removed the preamplifier turns of and no signal from the antenna passes, making this an "always on" broadband preamplifier. The LNA-30 may be mounted on masts up to 2.25 in. (58mm), is weatherproof, and should be placed outside, close to the receive antenna. This preamplifier cannot pass RF power and is not suitable for transmitting operations.
Not Yet Reviewed
$429.99
DX Engineering RF PRO Loop Replacement Components
Since DX Engineering manufactures the RF-PRO-1B® Active Magnetic Loop Receive Antenna, we can offer these RF PRO Loop Replacement Components. Available for refurbishing Pixel, InLogis or DX Engineering Active Magnetic Loops, choose one or more of these individual "Original Equipment" components, component set or handy accessory pack that fills your needs. 1. DXE-RFPRO1B-PA Receive Preamplifier has this new part number for the preamp unit only. This is the weatherproof, metal-encased replacement RF PRO 1B Receive Preamplifier that mounts directly onto the loop bracket. Mounting hardware is not included with this replacement low-noise preamp, but it is available in the… 2. DXE-RFPRO1B-OAP Outdoor Accessory Pack. This package contains the insulated shoulder washers, flat washers and nuts to properly mount the preamp. Also included in this outdoor package for the loop installation are the mast mounting V-Bolts and Saddles and the short RG-6 F connector jumper to connect the loop to the preamp, and weather sealer. User supplied RG-6 coaxial cable is used for the long feedline that is run inside to the… 3. DXE-RFPRO1B-PI Power Inserter. This is the indoor unit that puts a well filtered and regulated 20 Vdc power onto the feedline for the preamp. It carries the loop RF to the receiver via the F connector. This unit also disables the power to the preamp when it is keyed by the transceiver amplifier keying line. The Power Inserter is run on 24 Vac from the… 4. DXE-PSW-24A-6AU AC Adapter. This clean power supply is a linear transformer that converts 120 Vac to the 24 Vac at 600 mA required by the Power Inserter. It is has the attached 2.1mm power connector. 5. DXE-RFPRO1B-IAP Indoor Accessory Pack contains the cables and adapter to connect the transceiver RF and keying lines to the Power Inserter. The F connector coaxial cable connects RF from the Inserter to the radio. A supplied F female to PL-259 adapter facilitates that connection, should you radio need it. An RCA phono patch cable is supplied for keying the Power Inserter and a RCA phono y-adapter provides the additional keying line connection for a power amplifier. 6. DXE-RF-30B Complete Component Package is for a system replacement where only an existing RF PRO 1B Loop is available. All of the above individual components, cables and hardware items listed above, items 1 through 5, but not the loop, are included in this DXE-RF-30B package. 7. DXE-PRO-LOOP is the Replacement RF PRO 1B Loop that is ordered by customers who have all other components of their system working. When your damaged or defective loop needs to be replaced, this is the loop only part to order. RF-PRO-1B® Loops may occasionally need a replacement component or hardware package. DX Engineering RF PRO Loop Replacement Components are available right here, at DX Engineering!
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$275.99
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$464.45
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
WiMo X-Quad Antennas
WiMo X-Quad Antennas, with separate monoband models for 144-146 MHz or 430-440 MHz, represent a refinement of VHF and UHF cross-polarized Yagis. They are well-known in Europe as "multi-element quads"—an antenna with aluminum elements, not a wire and fiberglass antenna—which offer excellent gain with a relatively short boom length. X-Quads are a great solution due to their short length and lightweight construction, especially for VHF/UHF satellite systems which require rotation in all compass directions and elevations. Two X-Quad Antennas, one for 144-146 MHz and one for 430-440 MHz, may be mounted at opposite ends of an azimuth-elevation rotator cross-boom for high-performance full duplex Satellite operations. For either or both bands, X-Quad Antennas may instead be used in a stationary mount, as pictured, for all-mode terrestrial operations. In either application, multiple X-Quad Antennas may be stacked vertically and horizontally for additional gain and tighter patterns. The WiMo X-Quad special features, developed specifically for Satellite Amateur Radio include: * Switchable Polarization Plane; horizontal/vertical/right hand circular/left hand circular (remote switching requires optional equipment) * High gain compared to other antenna forms due to the "stacking effect" * Short boom length and compact design * Back-end boom or mid-boom centered mounting to the mast is possible The radiator element is a "stacked quad" multi-element beam, for which linear polarization can be compared to a crossed slotted radiator. However, the advantage of the X-Quad is that it can be optimally used for the desired polarization by simply changing the feed. Compared to a typical cross-polarized Yagi, all directors and reflectors are active in the X-Quad, which enables the compact design. As with cross-polarized Yagis, switching is accomplished on the mono-band X-Quad either by a coaxial relay or with a band specific WiMo Remote Polarization Switch (sold separately). If the remote switch is mounted at the antenna, then only one coax cable and a 4-conductor control cable are required, sold separately. If the Switch is used at the station, then two coaxial cables from the antenna to the station are needed. The WiMo X-Quad Antenna can also be permanently set for circular operation by using an optional, band-specific Phase Line. The secondary elements are arranged diagonally in relation to the square-shaped driven element, which corresponds to the voltage distribution on the radiating element, for the most favorable results. In comparison to Yagi antennas, the X-Quad pattern and tuning are affected less by the influence of external fields, making them ideal for installation under a roof, in an attic space. All elements are electrically conductively connected with boom and cable outer sheath, thus eliminating interference from atmospheric noise. Two Type-N female coaxial connectors, one for each polarization, are mounted in a housing that is waterproof. Boom and elements are made of aluminum, all hardware is stainless steel. Construction and design of the antennas are protected by law (DBGM). The antennas are designed for boom-end mounting; however, alternatively the mast clamp can be mounted in the middle of a non-metallic boom. These antennas have a split boom, so their transport length is only 29.53 in. (75cm) for the 2m antenna and 25.59 in. (65cm) for the 70cm X-Quad. For portable operations they can be stowed away comfortably in the trunk of car and their shipping costs are comparatively low.
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$349.99
DX Engineering RPA-2 Modular Receive Preamplifiers
DX Engineering RPA-2 Modular Receive Preamplifiers are newly designed versions of the RPA-1 with internal slots for accessory modules. They accommodate the addition of the one optional plug-in module, such as the 75 to 50 ohm Impedance Transformer Module, or the Receiver Guard 5000HD Plug-In Module, or the DX Engineering Clifton Laboratories Z10020 AM Band Filter Module. DXE-RPA-2 preamps have very low internal noise and are optimized for the 300 kHz to 35 MHz range. They help you hear the weakest signals without artificially raising the noise. Meticulous craftsmanship and durable, robust components allow these preamplifiers to withstand high signal levels while providing superior dynamic range and third-order intercept performance that equals or exceeds most receiver and transceiver front-ends. RPA-2 Receive Preamplifiers have key features added, as requested by our tech-oriented customers and enthusiasts: - Internal slot accommodates the optional 75 to 50 ohm Impedance Transformer Module to accomplish typical receive antenna feedline to equipment transitions without losses -Also allows direct connection to 50 ohm receive antenna feedline BNC connectors with no transformer required - Internal slot for DXE-RG5000HD-PM Receiver Guard 5000HD Plug-In Module – Front-end protection for the RPA-2 - Secure BNC female connectors and receive-system friendly F female connectors remain; both prevent accidental connection to transmitting devices with UHF connectors - A green LED indicates when DC power is present and the preamplifier circuit is engaged. - An ingenious positive-capture threaded-sleeve 2.1 mm power connector that ensures the DC power cannot be accidentally disconnected from the RPA-2. - Alternatively, a simple internal jumper change allows the RPA-2 to be powered by DC on the feedline While many other common preamplifiers suffer from harmonic distortion, RPA-2 Modular Receive Preamplifiers include our exclusive, advanced push-pull design that eliminates harmonic distortion. Their high quiescent current increases their ability to handle strong signals without distortion or overload. These high performance devices must be powered with a well filtered and regulated DC power supply and will offer maximum performance at 12 to 18 Vdc input. Please do not use a cheap wall transformer or noisy switching wall-wart to power these top-of-the-line preamplifiers. Indoor installation at the back of the radio is recommended for RPA-2. For those who want to place them in an enclosure at a receive antenna system, a handy internal jumper allows these new units to be powered on the coaxial cable. RPA-2 Receive Preamplifier Specifications: -Input and Output Connectors, female: BNC and F -Frequency Range: 300 kHz to 35 MHz -Gain: 16 dB, +/- 1.5 dB (over entire frequency range) -Output Third Order Intercept: 43 dBm -Noise Figure: 3.5 dB -One dB Compression Point: +26 dBm (400 mW output) -Dynamic Range, IM3: 110 dB or greater (500 Hz bandwidth) -Power Requirement: 12-18 Vdc, 140 mA max. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. DX Engineering RPA-2 Modular Receive Preamplifiers offer superior receiving results on crowded medium wave and shortwave bands as well as on the ham bands. SWLs and Radio Amateurs around the world have come to rely on the advanced operational performance of DX Engineering Receive Preamplifiers. You will be able to pull in the weakest signals and snag that rare one, under the most difficult conditions, when you need it the most. Order your DX Engineering RPA-2 today!
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$269.99
DX Engineering RTR-2 Modular Receive-Transmit Interfaces
DX Engineering RTR-2 Modular Receive-Transmit Interfaces provide the easiest and safest method for connecting a dedicated receive antenna to an HF transceiver that does not have a separate receive antenna input. Placed inline with the transceiver's antenna connector, the RTR-2 does the job of a 200 watt T/R relay using the amplifier keying line for failsafe protection, so your transmitted energy cannot go to the receive antenna. Three internal Plug-in Module option slots provide added features and protection: * DXE-RPA-2-PM Receive Preamplifier Plug-in Module * DXE-TRI-PM Transmit Receive Interrupter Plug-In Module * DXE-IT-PM 75 to 50 ohm Impedance Transformer Plug-in Module DX Engineering RTR-2 Modular Receive-Transmit Interfaces allow the standard transceiver owner to enjoy the advantages of separate receive antennas. For the unswitched receive antenna (RX ANT) port on expensive transceivers, the RTR-2 interface also adds inexpensive failsafe protection. The receive antenna line can be opened or grounded with the optional DXE-TRI-PM Interrupter plug-in module. The RTR-2 is a very useful device for many applications, including: * Connection of external receiving antennas to transceivers lacking external antenna ports * T-R antenna switch for older equipment using separate transmitters and receivers * Interfacing antennas to older phasing or noise cancelling systems * Addition of a switchable receive preamplifier to any transceiver or transmitter and receiver combination * Excellent failsafe receiver protection for close-spaced transmit and receive antennas, without performance degradation of diode circuits of other devices. RTR-2 units feature a unique, failsafe connection method that prevents the hot switching and timing errors that are common on other transmit/receive relays. RTR-2 interfaces switch fast enough for partial break-in CW operation. There are many simple applications for the new RTR-2 and now internal modules can add dramatically improved reception of those really weak signals on the crowded HF bands! DX Engineering RTR-2 Modular Receive-Transmit Interfaces enable operators to enjoy improved reception with any low noise receiving antenna system. This shielded enclosure relay system provides a safe method of connecting a receive antenna, such as a Beverage, Active Receive system, or other receiving accessories to your radio. Major features that make the DX Engineering RTR-2 Receive Antenna Interfaces your best choice for a receive T/R system device: * New Status Indicating Color-changing LEDs * Three internal slots for new DX Engineering modules * New Key Line Out connector for Amplifier * New internal jumper for placing DC on the Receive Antenna feedline for Active or Loop receive antennas * Attractive and heavy stainless steel enclosure * 200 watts RF switching capability * Supports CW partial break-in * Main transmit antenna connector is SO-239 (UHF female) * Radio RF connector is SO-239 (UHF female) * Receive antenna input is 75 ohm F connector * Receive outputs are standard 75 ohm Type F connectors * Inputs are 50 ohm BNC or 75 ohm F (Optional transformer module available) * Safe switching--transmit antenna is always connected to transceiver on power-off * Hot switching lockout--disables receive antenna during transmit mode (Optional DXE-TRI-PM can be set to short the RX ANT line) * Versatile--allows inclusion of Optional RF preamplifiers and other plug-in modules * Simple 13.8 Vdc input for all operations An indispensable accessory for the DX enthusiast and useful for any Amateur's shack, DX Engineering RTR-2 Modular Receive-Transmit Interfaces can help you expand and improve your station's antenna connections and the protection of your equipment.
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$375.99
Antennas-Amplifiers 6290 2m 100W Transmit Band Pass Filters
Antennas-Amplifiers 6290 2m 100W Transmit Band Pass Filters are equally effective for both transmitting and receiving, boasting a super low insertion loss of just 0.15 dB. These Band Pass Filter are designed for use with transceivers and transverters up to 100W output. They are also ideal for placement before any wide band low noise amplifier (LNA) to protect against out-of-band signals. With their super low insertion loss, these 2m Transmit Band Pass Filters are excellent for use before any LNA or to protect receivers from HF transmitters. They effectively suppress signals from HF (1.8 – 28 MHz), 6 meters (50-54 MHz), and 70 cm (430 – 440 MHz) bands. Additionally, these filter helps reduce television interference (TVI) problems, making them particularly useful if you or your neighbors have strong HF, 6 meter, or 70 cm transmitters.
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$267.99
Bushcomm Horizon Multi-Band Loop Antennas
Magnetic- loop antennas have existed almost since radio began. The recent resurgence of interest in them is the result of their small size and relative noise immunity. Bushcomm Horizon Multi-Band Loop Antennas are all aluminum magnetic-loop antennas that are designed for operation as tight-bandwidth transceive or as receive-only antennas. Bushcomm Horizon loops are characteristically quiet on receive (as are all magnetic loops) and highly efficient on transmit. Due to their physically small size, all antennas of this type transmit on a very narrow SWR bandwidth. However, their unique design allows them to be continuously tunable across their entire rated bandwidth. Note: To correctly tune for transmit use you will need an antenna analyzer. These loops are available in two models that cover either 40 through 10 meters or 20 through 10 meters: Horizon Loop 40: * 40 through 10 meters (7.0 to 30 MHz, continuous) * 125w PEP maximum power rating * Approximately 53.5 in. wide, 40.2 in. high * 3.5 lbs. Horizon Loop 20: * 20 through 10 meters (14.0 to 30 MHz, continuous) * 125w PEP maximum power rating * Approximately 28.75 in. wide, 33.5 in. high * Weight 3.1 lbs. These antennas are very simple and easy to assemble. They are comprised of few parts, so disassembly for transport is also an easy task. Parts list: * 2 loop halves * 2 loop stands * 1 gamma matching bar * 1 capacitive tuning slide * 2 stand insulators * 1 gamma match "python clamp" Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Perhaps you've been looking for the perfect SOTA or other portable-application antenna? Maybe you would like a different solution for camping, travel or apartment antenna use? These portable 125 watt HF loops are from a quality manufacturer of many portable, stealth and limited-space antenna products. Get on 40 through 10 or 20 through 10 the easy way with your choice of Bushcomm Horizon Multi-Band Loop Antennas from DX Engineering!
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$429.99
Hustler G-3754 37-54 MHz Monoband Vertical Antennas
Hustler G-3754 37-54 MHz Monoband Vertical Antennas are full size 5/8 wave, 6 meter vertical antennas from Hustler. They were developed in the early 1970s and have been available ever since. Designed for commercial VHF and government VHF-Low Band use, they are extremely durable. They also provide gain of 6.4 dBi! A full size radiator with a lower radiation angle concentrates power closer to the horizon, where you want it. The elements are easily adjusted to any frequency from 37 through 54 MHz, so these antennas vary in height depending on the frequency to which they are tuned. For 6 meters, they are about 8.3 ft. tall. Tuned radials at the base of the vertical enhance electrical performance and help provide a 6 meter bandwidth of over 4.0 MHz with 2:1 SWR or less. An integral shunt-fed matching system also provides a DC path to ground to drain off static, resulting in extremely low-noise antennas. Hustler G-3754 antennas are a value-packed option for 6 meters and handle 300 watts CW/FM/AM. VHF verticals are usually mobile/repeater FM antennas but, due to their wideband coverage, you may want to use one of these in the SSB portion of the band. Purchase your Hustler G-3754 37-54 MHz Monoband Vertical Antennas from DX Engineering and start having more fun on 6 meters!
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$398.99
DX Engineering Receive Short Element Active Vertical Antennas
DX Engineering Receive Short Element Active Vertical Antennas (the RSEAV Antennas) offer excellent low noise radio frequency reception from 40 kHz to 30 MHz. Better receiving performance than full-size transmit antennas and other active makes the DXE-RSEAV-1 the best choice on the market for VLF through HF reception, including long-distance AM broadcast, Medium Wave and Shortwave (SWL), and new low-frequency Amateur bands, DXing, contesting, and everyday HF operations. Click on a listed product title and Scroll Down to see additional important information. A complete product description appears below the Specifications Overview. Instruction manual links appear in the Documentation section. The sleek and stealthy DXE-RSEAV-1 includes a high-quality three-section 8.5 ft. (2.6m) aluminum tubing whip, insulated mounting plate and the completely new DXE-AVA-3 Active Matching Unit. Its state-of-the-art broadband operational amplifier design works as a high-impedance buffer between the short antenna element and RG6U 75-ohm coax. When installed in the appropriate location, RSEAV antennas provide significantly better weak signal reception than other active receive antennas and full-size transmit-capable antennas, with substantially reduced noise and lower spurious signal interference. Receive Short Element Active Vertical Antennas are intended to be mounted on a ground rod at ground level in a clear area away from all metal, towers and other antennas. They are sold individually (DXE-RSEAV-1), or with a bias tee (DXE-RSEAV-1FVI) and DXE-RSEAV-1 Receive Short Element Active Verticals set a new standard for "Active Receive Vertical Antennas" replacing legacy DXE-ARAV-3, ARAV-2, ARAV-1 and AL-24 versions. Use multiple DXE-RSEAV-1 for all 4 and 8 element DX Engineering Receive Arrays – all 3, 4 and 8 element Hi-Z Antennas Arrays – and 2 element receive arrays with DXE-NCC-2 and NCC-1 Variable Phasing Controllers. The DXE-RSEAV-1 is designed to be a very low-gain, low-noise antenna for greatly improved signal-to-noise performance over a very wide range of frequencies. In a proper single or multi-element array installation, this Receive Vertical antenna will attenuate high-angle skywave signals, which is the goal for a low band DXing receive antenna. Low-angle, long-range DX signals are easier to copy with a good radio and DX Engineering Receive Short Element Active Vertical Antennas. Please Note: To achieve the expected reception pattern, multi-element phased arrays depend upon identical gain and phase response from each element. Every individual element amplifier, its grounding, and even its feedline characteristics and length, must be identical to the others in the array. Therefore, when unrepairable failures occur, it is essential to replace or upgrade all the elements in the array with identical, fully compatible DXE-RSEAV-1 antennas or DXE-AVA-3 units.
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$349.98
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$499.98
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
Momobeam RFC-DU 5kW RF Choke Baluns
Momobeam RFC-DU 5kW RF Choke Baluns provide an excellent balance of currents and ensure a proper transition between balanced resonant antenna systems (with low SWR)—such as dipoles and Yagi antennas—and unbalanced coaxial feedlines. These RF Chokes are highly effective at suppressing common mode current from flowing along the exterior of coaxial feedlines, a condition that can cause several issues, including: - Increased noise levels - Inaccurate SWR meter readings - Interference affecting electronic devices within our shack or near the antenna system
Not Yet Reviewed
$265.99
DX Engineering Reversible Beverage Systems
DX Engineering Reversible Beverage Systems basically allow two Beverage antennas to be switched to receive in opposite directions while sharing the same physical space. DXE-RBSA-1P Reversible Beverage Systems antennas provide two opposite "end-fire" directional patterns with excellent front-to-rear directivity and superior signal-to-noise ratio as compared to transmitting antennas. Dramatically improved long distance weak signal results may be achieved on MW and the 160, 80 and 40 meter bands, including shortwave bands, with receive-only Beverage antennas using wires that are typically only 350 to 800 feet long, depending upon the band of interest. The two-direction DXE-RBSA-1P Reversible Beverage Systems offer a space and installation advantage because two opposite single-wire Beverage antennas would require twice the length. DX Engineering Reversible Beverage Systems are immune to the strong signal overload and core saturation common in multi-transmitter contesting environments and are used by winning contest stations and low-band DXers around the world. These Reversible Beverage antennas have two "F" connectors; one "Away" port for the default end-fire receiving pattern off the end of the wire, and one "Toward" port for the opposite direction. The standard configuration of these systems has the "Toward" port terminated (75-ohm termination included), so both antennas share a common feedline. Applying a negative 10 to 18V DC to the feedline switches the system between the two antenna ports for reception in opposite directions. For simultaneous reception from opposing directions, each of the two feedlines can be run to separate receivers, with the termination load not used. You can build a 4-direction receive antenna system with two DXE-RBSA-1P Reversible Beverage Systems and one DX Engineering RLS-2 Two-Port Receiving Switch that also requires only one feedline! The optional DX Engineering Feedline Voltage Coupler, model DXE-FVC-1 is highly recommended to provide all of the required feedline voltage injection. Plus, the optional DXE-EC-4 BCD Control Console completes the system for four-direction switching right in the shack. DX Engineering Reversible Beverage Systems are optimized to use our optional 450 ohm ladder line for the antenna element. We strongly recommend using that type of "window line" because the consistent spacing of the antenna wires will produce the best operational results. However, the RBS will work with any 300-600 ohm 2-wire line. For best feed line results, DX Engineering highly recommends using our high quality flooded or quad-shielded 75-ohm coax with F-type compression connectors to ensure a weatherproof installation. Additional features include: * Broad operating range, 0.2 to 30 MHz * Fully isolated grounds prevent common-made noise and unwanted signals * 75 ohm design enables the use of high quality, low cost cable and connectors * RF shielded housing used for isolation and improved life * Directional Switching Voltage: nominal 12V AC or negative 12V DC, feedline injected * Directional Switching Current: less than 80 mA * Antenna impedance: 300-600 ohm (450 ohm recommended) * Feedline impedance: 50-75 ohm (75 ohm recommended) * RBSA-1FP Feed Point unit dimensions: 5.5 in. width x 3.5 in. depth x 1.5 in. height * RBS-1RT Reflection Transformer unit dimensions: 2.125 in. width x 2.125 in. depth x 1.125 in. height Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. DX Engineering Reversible Beverage Systems offer the best DX reception and flexibility in high performance two-direction wire Beverage receive antennas. Get yours set up soon!
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$335.98
DX Engineering Beverage Antenna System Combos
DX Engineering Beverage Antenna System Combos are single-wire single-direction Beverage antenna feed systems. These combos include DX Engineering's superb receive preamp and the Beverage antenna feedpoint transformer! The included BFS-1 transformer design makes them immune to the strong signal overload and core saturation. The isolated-winding matching transformer significantly increases the signal-to-noise ratio in Beverage and other high-impedance antennas. The included termination resistor is a special 470 ohm, 2 watt, non-inductive resistor that withstands nearby lightning strikes. Also included, the DXE-RPA-2 Modular Receive Preamplifier is the best low noise, receive preamps available… period. It is optimized for the 300 kHz through 35 MHz frequency range with an advanced push-pull amplifier design that eliminates harmonic distortion and it handles strong signals without distortion or overload. The DXE-RPA-2 Modular Preamp features one internal option slot for a plug-in module. Choose from the DXE-RG5000HD-PM Receiver Guard, the DXE-IT-PM 75 to 50 ohm Impedance Transformer, or use a RXFL Filter Adapter and a Receive Filter board for band pass, high pass or low pass filtering. Click "More Detail" for additional information. The "Documentation" tab contains links to associated files. SWLs and Radio Amateurs around the world have come to rely on the exceptional performance of DX Engineering products. Order one of these DX Engineering Beverage Antenna System Combos to get excellent MW and HF reception with your Beverage antenna.. * Important Note regarding DX Engineering Protection Plans and Kit Combo Contents Protection plans cannot be purchased for combination packages or on applicable devices after shipment. DX Engineering Combination Kits and Packages are designed to help you easily visualize and order the right items for your specific needs. However, we encourage you to contact our experienced Technical Sales Team for assistance. We can help adjust the kit contents, suggest substitutions based on stock availability, and offer DXE Protection Plans for radios and devices when applicable. Contact us for Expert assistance and make informed purchasing decisions with our guidance.
Not Yet Reviewed
$385.98
DX Engineering Receive 8 Circle Array Controllers
DX Engineering RCA8C-1 Receive 8 Circle Array Controllers are the highly sophisticated switch controller relay units from the Eight Circle Array Systems--the receiving systems that use time delay phasing--rather than the conventional narrow-band, frequency-dependent phasing, to provide eight 45 degree spaced directional patterns. The RCA8C time delay phasing is directivity-optimized to produce wider and deeper rear nulls and a narrower main lobe. The result is that noise and undesirable signals are greatly reduced for a superior front-to-rear ratio (F/R). Better control of phase and currents provides a cleaner pattern with the Receive 8 Circle than is available with vertical antenna transmit arrays. DX Engineering Receive 8 Circle Array Controllers are designed to be used with eight identical vertical active or passive vertical elements, symmetrically spaced in a large circle, to provide switching for an 8-direction receiving antenna system. Passive elements will generally provide you with a monoband receiving system. Finally, these systems offer greater reliability in receiving applications. Receive Eight Circle Array Controllers use sealed relays sized for receiving applications with silver contacts to prevent oxidation and contamination. Most transmitting four-square switches use large open-frame relays where the contacts are exposed to the air, which can lead to contamination. Relays with brass contacts can oxidize, leading to poor conductivity. Receive Eight Circle Array controllers feature: * W8JI design * Operation from 100 kHz to 30 MHz * Excellent directivity for better signal-to noise ratio * Switching console provides eight 45 degree spaced directions * Less physical space and maintenance required than phased Beverage antennas * Low current DC powered control console allows system operation without AC power mains The optional DX Engineering Eight Circle Receive Short Element Active Vertical Antenna Package, DXE-RSEAV-8, offers excellent receiving performance from 100 kHz to 30 MHz, while using only a 8.5 ft. (2.6m) aluminum vertical antenna elements. A unique design makes the Receive Eight Circle Array System vastly superior to traditional active vertical antennas in both strong signal handling and feedline decoupling. This results in significantly better weak signal reception due to lower spurious signal interference and reduced noise. DX Engineering RCA8C Receive 8 Circle Array Controllers are the foundation of your Eight Circle Array!
Not Yet Reviewed
$499.99
Antennas-Amplifiers 6320 2-meter 1500W Transmit Band Pass Filters
Antennas Amplifiers 6320 2 Meter 1500W Transmit Band Pass Filters are engineered for high performance 144–148MHz operation, delivering exceptionally low loss and outstanding harmonic suppression for demanding transmit and receive environments. Built with ultra high Q coils and capacitors—each exceeding a Q factor of 4500—these filters achieve their low loss performance through precise component selection and meticulous factory alignment. Designed primarily for high power transmitting applications, the 6320 also excels as a receive chain protector, making it suitable for placement ahead of wideband LNAs (low noise amplifier) to shield sensitive front end devices from powerful out of band RF energy. Supporting amplifiers such as the 8877, GS35, GS31, and other tube or transistor based stages up to 1.5kW output, the 6320 delivers exceptional stability under heavy load. Its integrated 12VDC cooling fan ensures reliable thermal management during extended operation, while rugged N type female connectors provide secure, low loss RF connections. The filter's performance makes it ideal for DXpeditions, multi multi contest stations, and installations where strong HF, 6 meter, 1.25 meter, or 70 centimeter signals would otherwise overload receivers or degrade system sensitivity. Offering deep suppression of unwanted signals from HF (1.8–28MHz), 50–54MHz, and 70cm (430–440MHz), the 6320 effectively eliminates harmonics and reduces the risk of TVI and RFI issues—an important advantage for operators working in close proximity residential environments. All performance data for the 6320 is verified using an HP8753ES network analyzer with full two port calibration, ensuring accuracy and real world confidence in its measured attenuation and insertion loss characteristics.
Not Yet Reviewed
$408.99
Antennas-Amplifiers 5940 200W 6-meter Band Pass Filters
Antennas-Amplifiers 5940 200W 6-meter Band Pass Filters are extreme low loss 6 meter band pass filters engineered for both transmitting and receiving applications in the 50–52MHz range. Designed for operators who demand clean signals and maximum weak signal performance, these filter excel at pulling DX out of the noise while maintaining exceptional stability under real world RF conditions. With an impressively low insertion loss, and attenuation of just 0.11dB, they are ideal for placement ahead of any LNA (low noise amplifier) , safeguarding sensitive receiver front ends from strong HF transmitters during DXpeditions and multi multi contest environments. The Antennas-Amplifiers 5940 band pass filters deliver powerful suppression of unwanted harmonics—including those around 100MHz, 150MHz, and beyond—ensuring smooth operation and preventing interference from creeping into nearby bands. Built with premium grade components and meticulous filter design, the 5940 provides reliable, repeatable performance while eliminating harmonic emissions from linear amplifiers. Whether used for transmission, reception, or both, these Antennas-Amplifiers 5940 200W 6-meter Band Pass Filters deliver the clarity, protection, and efficiency serious VHF operators expect.
Not Yet Reviewed
$273.99
Antennas-Amplifiers 5960 6-meter 1500W Transmit Band Pass Filters
Antennas Amplifiers 5960 6 Meter 1500W Transmit Band Pass Filters deliver exceptional performance on the 6-meter Magic Band, providing clean, reliable operation across 50–51MHz for high power stations. Engineered with precision wound high Q coils and capacitors boasting a Q factor exceeding 4000, this filter achieves remarkably low insertion loss through meticulous component selection and exacting tuning. Designed to operate seamlessly with high power linear amplifiers—including 8877, GS35, GS31, 2×GI7B, and other tubes up to 1.5kW output—the 5960 ensures pure, interference free transmission while offering equally strong performance as a receiving filter. Ideal for protecting sensitive front end devices, the 5960 can be placed ahead of a wideband LNA (low noise amplifier) such as those using the PGA 103+, safeguarding against damaging out of band energy in demanding multi multi setups, DXpeditions, or high RF noise environments. These filter deliver outstanding harmonic suppression, effectively eliminating spurious energy around100MHz, 150MHz, and beyond, while also shielding equipment from nearby HF transmitters. The result is a filter that not only enhances transmission purity but also fortifies receiving chains against interference. Through careful engineering and superior component quality, the 5960 provides the robust performance, stability, and signal cleanliness expected from a premium Antennas Amplifiers RF solution.
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$368.99
DX Engineering Tinned Copper Radial Wire Kits
DX Engineering Tinned Copper Radial Wire Kits include plentiful quantities of biodegradable staples and tinned crimp ring terminals that are easily soldered. Along with spools of the same wire as used by the most successful contest stations and DX enthusiasts for their ground-mounted vertical antennas, these kits will help your antenna system achieve optimal performance. The 16 AWG tinned solid copper wire in these kits provide an extremely cost effective solution for the high-count, full-size ground radial wire systems that are required for top-performing HF vertical antenna installations. Ground wire radials do not need to be any specific length because the earth detunes them. Fill your ground-mounted vertical space with radials that run out from the antenna feedpoint in all possible directions, as far as they can go, up to about one-quarter wavelength on the lowest frequency. Even radials that are all about one-eighth wavelength long on the lowest frequency band are just fine for multi-band verticals over reasonably conductive soils. Use longer radials on lossy soils with sand and rocks. In most cases, a greater number of short ground radials will provide greater efficiency and stronger signals than is achieved with a few long radials. DX Engineering Tinned Copper Radial Wire Kits are available in four sizes: Shorter spool kits, 500 ft. and 1,000 ft., are perfect for the single HF ground-mounted vertical. Longer spool kits, 2,500 ft. and 5,000 ft., are intended for 2-element Dual Vertical Arrays, 3-element ProStack Arrays, and 4-element Four Square Array Systems. Each kit has the appropriate number of biodegradable staples and tinned crimp ring terminals. Why is this wire the absolute best choice for any ground-mounted vertical antenna? Because, DX Engineering Tinned Copper Radial Wire will last much longer in a variety of soil conditions as compared to bare copper, copper coated steel or aluminum wires. Radials deployed with those other wire types actually corrode and degrade rather quickly. Unfortunately, they do so slowly enough that the operator does not easily perceive that degradation in terms of antenna system performance. With Tinned Copper wire, full radial system integrity is maintained for a greater number of years. Depending upon soil type, installations with DXE-TCRW16 will maintain vertical antenna performance for many, many years… and even decades. NOTE: To prevent accelerated corrosion and the possibility of noise, DO NOT use metal anchor pins (lawn staples) on Tinned Copper Radial Wire. These kits contain only the DXE-STPL-100BD Biodegradable Anchor Pins to hold down bare wire radials. Biodegradable staples allow easy installation of radial wires and will disperse in a couple years, after they are no longer needed, making them site friendly. Biodegradable staples work best in soft ground where they may be pushed or lightly tapped into the ground. Since they are a lacto-resin material they are subject to breaking in rocky or hard soil and are not intended to be hammered. DX Engineering Tinned Copper Radial Wire kits are the right choice for long lasting top-performance radial systems for your ground-mounted vertical antenna system.
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$315.91
DX Engineering Receive Four Square Array Controllers
The patented DXE-RFS-3 DX Engineering Receive Four Square Array Controllers are the heart of a sophisticated receiving system that uses time delay phasing rather than the conventional narrow-band, frequency-dependent phasing systems. The time delay phasing is directivity-optimized to produce wider and deeper rear nulls and a narrower main lobe. The result is that noise and undesirable signals are greatly reduced for a superior front-to-rear ratio (F/R). Better control of phase and currents provides a cleaner pattern than those found on available transmit four square arrays. The RFS-3 DX Engineering Receive Four-Square Array Controllers are the switch relay units that are optimized to use the DX Engineering's Active Vertical Antenna Package DXE-ARAV4-4P of four active verticals. These products together offer great F/R response over octaves of bandwidth. DX Engineering's Active Receive Antenna System offers excellent receiving performance from 100 kHz to 30 MHz, while using only a 8.5 ft. antenna element. A unique design makes it vastly superior to traditional active antennas in both strong signal handling and feedline decoupling. This results in significantly better weak signal reception due to lower spurious signal interference and reduced noise. Finally, these systems offer greater reliability in receiving applications. The RFS-3s use sealed relays sized for receiving applications with silver contacts to prevent oxidation and contamination. Most transmitting four-square switches use large, open-frame relays where the contacts are exposed to air, which can lead to contamination. Relays with brass contacts can oxidize, leading to poor conductivity. Advantages of the RFS-3 Receive Four-Square Antenna Systems over other small or medium-size receiving arrays include: * Reduced susceptibility to high angle signals compared to EWE, Flag, Pennant, and K9AY antennas * Excellent directivity in a small space for better signal-to-noise ratio * Switchable in four 90 degree spaced directions * Directivity over a very wide frequency range using DX Engineering DXE-ARAV4-4P active elements * Less physical space required than a Beverage antenna, and active elements need only a minimal ground system * Enhanced relay contact reliability
Not Yet Reviewed
$375.99
Alpha Antenna Low Profile Lite HF Base Vertical Antennas
Alpha Antenna Low Profile Lite HF Base Vertical Antennas cover the 10 to 80 meters amateur bands and are considered the 'lite' version of the ProMaster Heavy Duty HF Base Vertical Antenna. This antenna system features an easy-to-deploy telescopic stainless-steel whip, which can be retracted when winds of more than 50MPH are expected. The total length of the 17.75ft. vertical whip and the 25.25ft. horizontally sloped element equals the magic number of 43ft., a length used by many excellent systems for multi-band HF antenna operation from 80 to 10 meters. The last element is an 8ft. grounded counterpoise wire, which completes the circuit by creating a static drain for noise, making it easier to hear other stations.
Not Yet Reviewed
$299.99
Antennas-Amplifiers 5970 6-meter 4kW Low Loss Band Pass Filters
Antennas-Amplifiers 5970 6 meter 4 kW Low-Loss Band Pass Filters are designed for high-performance operation in demanding RF environments. Built with precision high Q inductors and capacitors (Q > 4000), the filter achieves exceptionally low insertion loss through careful engineering and tuning. Intended to be used with linear amplifiers 8877, GS35, GS31, 2xGI7B, and with other tubes with up to 4 kW output. When placed ahead of sensitive front-end equipment, it provides effective protection and signal conditioning, shielding LNAs such as the PGA 103+ from strong out-of-band signals while improving the performance of wideband SDR receivers on the 6 meter band. It is well suited for challenging applications including DX expeditions and multi multi station environments, offering strong suppression of harmonics (100 MHz, 150 MHz, and higher), reducing HF interference, and minimizing out-of-band noise across a wide frequency range.
Not Yet Reviewed
$428.99