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24 Results Found For "stack"
DX Engineering PRO-STACK Broadband Antenna Phasing Switches
DX Engineering PRO-STACK Broadband Antenna Phasing Switches are newly designed to combine two identical Yagi or log periodic beams, or three quarter-wave vertical antennas, into a phased array for enhanced operation. There is no need for coaxial delay lines with the DX Engineering PRO-STACK switches. Just connect your antennas to the phasing switch controller with equal-length 50 ohm lines. PRO-STACK switch units are available with high-quality PTFE-silver plated SO-239 (UHF female) connectors. These relay units are 1-of-3 source voltage controlled at 12-15VDC over a four conductor cable. A matching Control Console is available separately or is included in the PRO-STACK System. These phasing switches can be used for any applications that require the following four basic antenna feed selections: both antenna ports in-phase, both antenna ports out-of-phase, antenna port 1 only, and antenna port 2 only. The default is both output ports in-phase. Impedance matching automatically changes when any antenna port is disconnected. Generally, stacked Yagi antennas are separated vertically greater than 1/2-wavelength free space. Since the DX Engineering PRO-STACK Broadband Antenna Phasing Systems are broadband, they may be easily adapted to larger arrays. For example, four stacked Yagis may be combined by creating two sets of two, and then using a third DX Engineering control console to combine the first two sets. PRO-STACK switches can also be used to feed three quarter wave resonant vertical antennas for a high-gain 4-pattern array. In this arrangement, the center #2 passive element is directly grounded to a good ground radial system at all times, while the end elements #1 and #3 are then fed in various phase relationships by the PRO-STACK. Details are in the complete PRO-STACK PS-2B Instruction Manual linked here in Documentation. Features of the DX Engineering PRO-STACK Broadband Antenna Phasing Switches include these great features: * Power handling up to 5 kW * Broadband coverage on 160-10 meters * High-impact RF shielded weatherproof housing * High-RF tolerant, silver-PTFE SO-239 (UHF female) connectors * Proven DX Engineering RF relays for high performance * Safe 12 VDC relay operation, even on battery or solar power * MOV surge protection on control lines * External, removable control line connector * RoHS-compliant assembly
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$699.99
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$740.00
QRO.cz Stack Match High Power Broadband Antenna Phasing Switches
QRO.cz Stack Match High Power Broadband Antenna Phasing Switches are high-performance broadband antenna combiner designed to impedance match two Yagi antennas to a single transceiver (TRX). Ideal for mono-band, tri-band, or multi-band antenna systems, they support both in-phase (BiP) and out-of-phase (BoP) configurations, enabling advanced stacking and phasing configurations. Whether you're optimizing a contest station or enhancing DX performance, these Stack Match 1-2 switches allow seamless switching between upper, lower, BiP, and BoP modes. Built with high-quality components and housed in a rugged aluminum enclosure makes them a reliable choice for demanding HF operations.
Not Yet Reviewed
$559.99
Yaesu G-800DXA Medium Heavy-Duty Rotator Systems
Yaesu G-800DXA Medium Heavy-Duty Rotator Systems are azimuth positioners designed to rotate large tower-mounted amateur and professional antenna arrays under remote control from the station's operating position. These systems feature attractive compass-dial position indication controllers, with a connector port for optional computer interface for automated directional antenna positioning control. Yaesu's G-800DXA rotator design utilizes 98 heavy 3/8 in. dual-stacked circumferential ball bearings to distribute load over the full diameter of the housing. This design minimizes stress and wear and practically eliminates the possibility of destructive water entry: There is no shaft hole in the top of the housing. Instead of the usual AC motor drive used in older rotator designs, the G-800DXA use a variable-voltage DC motor, removing the need for a large starting capacitor with its potential for failure exposed to outside temperature variations. The factory-lubricated rotator unit is housed in melamine resin-coated die-cast aluminum, intended to provide maintenance-free operation under all climatic conditions. A mast alignment gauge on the rotator housing simplifies accurate mechanical alignment during installation. Tower mounted, this model handles over 20 sq. ft. of antenna wind load and over 400 lbs. of vertical mast load. Installation is required for included plug connectors on to the installer supplied 6-conductor control cable; 20 AWG for lengths less than 125 ft. and 18 AWG over 125 ft. Console power is 117 volts AC for units sold in the USA. The handsome desktop controller provides 360 degrees radial indication of actual antenna azimuth bearing. You can select rotation time over 360 degrees from 40 to 100 seconds on the G-800DXA, and preset a desired heading for the rotator, to which it then turns automatically. The operator may select the stop heading, the compass bearing through which the rotator cannot be turned, which is most convenient for their station location and operation, allowing full rotation through north, south or both, if desired. In any case, 90 degrees overlapping rotation allows rotation through the selected stop heading for 450 degrees of total rotation. These rotators are intended for mounting to an accessory shelf inside a support tower (not supplied), at least 1-meter (40 in.) below the top of the tower. Yaesu rotators have a fine reputation within the Amateur Radio community. When installing a new tower, or replacing an old rotator, consider purchasing a Yaesu G-800DXA Medium Heavy-Duty Rotator System from DX Engineering.
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$659.99
DX Engineering RR8B-HP Remote Antenna Switches
DX Engineering RR8B-HP Remote Antenna Switches are RF switches designed to have excellent performance on HF through 6 meters. Using 16 custom, sealed, moisture-resistant relays, these Remote Switches provide the best port-to-port isolation available with reliable, long-term performance. RR8B-HP switches may be used as conventional one-of-eight antenna switches or configured to simultaneously select multiple output ports, thereby allowing their use in complex antenna phasing and stacking systems. DX Engineering RR8B-HP switches use a removable screw-terminal control cable plug that greatly simplifies installation by eliminating the need for disassembly or soldering to wire the control lines. These remote relay boxes are custom-made on a revised stainless steel chassis with integral mounting-bracket flange and include a special RF-shielded high-impact thermoplastic cover. There is also a custom conductive gasket to complete the seal between the cover and stainless steel housing base. A DX Engineering V-Bolt Saddle Clamp is included to mount the RR8B-HP on any tower leg or pipe sized from 1 to 2 in. O.D. Features of the RR8B-HP Remote Antenna Switches include: * Fully RF shielded with stainless steel mounting bracket and hardware * Best port-to-port isolation available: Over 70 dB isolation below 30 MHz, Over 55 dB isolation below 60 MHz * Loss: Less than 0.1 dB below 60 MHz * High-RF tolerant, Amphenol UHF female, SO-239 connectors * Shorted or open selection of unused antenna ports * Sealed 20 ampere, RF-rated relays * Safe 12V DC relay operation * Lightning protection on control lines * External quick-connect plug for control lines * Reliable operation in extreme-weather conditions Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. For reliable operation of multiple antennas through the operation of remote switching, order DX Engineering RR8B-HP Remote Antenna Switches to do the job!
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$549.99
DX Engineering RR8B-SD Remote Antenna Switches
DX Engineering RR8B-SD Remote Antenna Switches are the highest power handling antenna switches in the DX Engineering RR8 Series. Think of them as Super Duty. They are designed to switch up to 8 coaxial lines in high-power RF systems. RR8B-SD switches use enclosed RF-rated relays with exceptional RF voltage and current capability to provide reliable, long-term performance. DX Engineering RR8B-SD switches may be used as conventional one-of-eight antenna switches or configured to simultaneously select multiple output ports, allowing for use in complex antenna phasing and stacking systems. RR8B-SD switches use removable screw-terminal control cable plugs that greatly simplify installation by eliminating the need for disassembly or soldering to wire the control lines. These remote relay boxes are custom-made on a revised stainless steel chassis with integral mounting bracket flange, and include a special RF-shielded high-impact thermoplastic cover. There is also a custom conductive gasket to complete the seal between the cover and stainless steel housing base. A DX Engineering V-Bolt Saddle Clamp is included to mount the RR8B-HP on any tower leg or pipe sized from 1 to 2 in. outside diameter. RR8B-SD Remote Antenna Switches feature: * Fully shielded, high impact thermoplastic enclosure, stainless steel mounting bracket, and hardware * Excellent port isolation; greater than 60 dB at 30 MHz, worst case * Power Rating: Greater than 10 kW in normal amateur operation on all modes when using antennas with less than 2:1 SWR on 30 MHz and below. Greater than 5 kW above 30 MHz * High-RF tolerant, Amphenol UHF female, SO-239 connectors * Lightning protection on control lines * Shorted or open selection of unused antenna ports * Custom sealed 30 ampere high-voltage RF relays * Solderless removable plug for easy installation of control line with no disassembly * Safe 12V DC relay operation * Reliable operation in all weather extremes Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. For multi-band multi-antenna QRO operation, there is no better remote switch than DX Engineering RR8B-SD Remote Antenna Switches!
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$599.99
M2 Antennas 2M12 2 Meter Yagi Antennas
M2 Antennas 2M12 2 Meter Yagi Antennas offer the VHF operator a perfect balance between manageable size, weight and performance for the money. With 12 elements on a 19 ft. 6 in. boom, but weighing only 8 pounds, 2M12 beams offer nearly 15 dBi gain, and are a great choice for accomplished enthusiasts as well as hams new to the world of VHF beams. M2 Antennas 2M12 beams feature the latest computer techniques for optimization of pattern and gain. Their clean patterns allow you to hear more and interfere less. Clean patterns are essential for stacking, and 2M12 beams are ideal for stacking in either polarization. Two 2M12's side by side vertically polarized make a fantastic FM DX tropo package. Four or more 2M12 beams horizontally polarized are perfect for long haul SSB, CW or digital mode tropo DXing, meteor-scatter, or moon bounce. Structurally 2M12 beams are sturdy and clean, requiring no boom support. Their booms are strong, with 1-1/2 in. diameter tubing in the middle, tapering to 1-1/4 in. and 1 in. sections that reduce weight and wind load. Elements are 3/16 in. 6061-T6 aluminum rod mounted through the boom on UV stabilized button insulators. At the heart of 2M12 beams are M2 Antenna's unique Driven Element Modules, with connectors that are O-ring sealed to the CNC machined block and coaxial balun connectors that feature triple O-ring seals. Internal module connections are sealed in a space-age silicone gel that has nearly four times the dielectric strength of air to enhance power handling. Built for the ham who appreciates a great antenna for a reasonable price, M2 Antennas 2M12 2 Meter Yagi Antennas mean superior performance as well as long term electrical and mechanical integrity. Get your M2 beams from DX Engineering today!
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$578.99
Hustler Base Model G7-144 Vertical Antennas
Hustler Base Model G7-144 Vertical Antennas feature a 7 dBd maximum effective omni-directional gain; providing a consistent pattern, even in marginal areas. Extremely low-angle stacked 5/8 wave radiators deliver superior gain. Due to robust manufacture, harsh environments do not affect their mechanical or signal integrity. They are constructed from high-strength aluminum and employ a fiberglass radome for all-weather durability. Hustler G7-144 antennas are totally self-supporting and are easily assembled. When they are disassembled, their longest section is approximately 4 ft., which makes them easy to handle and move. They are great for EMCOMM and Field Day, or use one for your QTH or repeater service. When it comes to your signal, a good antenna is a must! Order Hustler Base Model G7-144 Vertical Antennas and give your signal a good boost!
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$519.99
Green Heron RT-21-CDE Universal Digital Rotor Controllers
Green Heron RT-21-CDE Universal Digital Rotor Controllers are completely new, extremely advanced and adaptable controllers for your directional antenna rotation systems. Offering the ultimate in operational capabilities, Green Heron RT-21-CDE Universal Digital Rotor Controllers are the best controllers available for your new rotor unit or as a replacement in existing systems. You can add these great features to your existing rotator unit, without even climbing the tower! * Pre-programmed for Hy-Gain and CDE rotator systems * High-visibility LCD display with adjustable backlight brightness * Fully versatile controls for point-and-shoot or manual push button operation plus presets * Automated rotator computer control through RS-232 or USB * PWM (pulse width modulated) variable-speed control * Start and stop ramping to reduce tower and antenna stresses * Precision heading accuracy up to 1/10 degree * Fully supports side mounted antennas, soft limits prevent running into tower * Allows over-travel up to 720 degrees total * Offset control allows center of rotation at any heading, allows N & S center on same mast, and compensates for slipped mast * Fully user-programmable, reversal and brake delay, speed minimum and maximum, limits, ramps, and much more * Master/slave for stacked arrays, turn together or separately * Counter-rotation, install rotor above rotating tower * Easy front panel setup and setup utility software Replace your old-fashioned rotator controller with a modern, state-of-the-art digital controller! Green Heron RT-21-CDE Universal Digital Rotor Controllers from DX Engineering are pre-programmed specifically for Hy-Gain/CDE HAM-series and T2X (Tailtwister) rotators. However, they are easy to setup for all other rotator units because they are field programmable with convenient, internal, solderless jumpers. Get yours today!
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$571.12
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$649.00
InnovAntennas LFA3-HG 50 MHz 5-Element Yagi
InnovAntennas 50 MHz LFA3-HG 5-Element Yagi was designed to have the best gain on a relatively short boom. This antenna offers forward gain of 10.7 dBi (16.2 dBi at 10m above ground) and an exceptional 31 dB front-to-back rating with SWR less than 1.4:1 in the 50-50.4 MHz range. The low profile LFA3 dipole achieves a significant reduction of noise, allowing clear reception of much weaker signals, a key component of operational improvements and success. The LFA3-HG has a 12.8 ft. boom and a low 2 sq. ft. wind load, making this beam ideal for typical 6 meter stations as well as 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 single piece 5/8 inch (15.88mm) element centers, 1/2 inch (12.7mm) tips with loop ends made with 3/8 inch (9.525mm). The antenna has fully insulated elements which will ensure continuous, high performance for many years to come. 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 becomes quieter and they achieve a higher forward gain. The 50 MHz Monoband LFA Yagis from G0KSC represent a significant advancement in the development of Yagi antennas.
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$529.99
DX Engineering Heavy-Duty 4130 Chromoly Steel Masts
DX Engineering offers Heavy Duty 4130 Chromoly Steel Masts in both 11 foot and 22 foot lengths. DX Engineering Heavy-Duty 4130 Chromoly Steel Masts offer ham radio operators an opportunity to stack large antennas. These 2-inch and 3-inch outside diameter galvanized masts feature a 0.250-inch wall thickness and meet ASTM A-513 Type 5 ratings. These high-strength carbon steel masts are cold-drawn and electric-welded with a specified yield stress rating of over 100,000 psi! Tensile strength minimum is above 110,000 psi. Minimum Rockwell B hardness is 96. They are temperature stress-relieved to ensure consistent mechanical strength. Compared to standard galvanized plumbing pipe, the Heavy‑Duty 4130 chromoly steel mast offers substantially greater strength and durability. The galvanizing on these masts meets ASTM A123/A123M specifications. As with all hot dip galvanized products, surface irregularities are normal. Any cut ends are protected with a cold galvanizing coating. Important: Because these masts are galvanized, their overall outside diameter will be larger than the nominal size. The 2 inch mast may measure up to 2.070 in. OD, and the 3 inch mast may measure up to 3.130 in. OD. Are you planning on stacking a few mono-banders on the tower? Are you going to have multiple Yagis stacked high and deep on an H frame? Are you raising a BIG log-periodic? If you are going to loft big antennas with a lot of wind area, then you absolutely need a DXE Heavy-Duty 4130 Steel Mast atop your heavy-duty tower! DX Engineering Heavy-Duty 4130 Chromoly Steel Masts may be ordered and picked-up at the Summit Racing Equipment Retail Store, 1200 Southeast Ave, Tallmadge, OH 44278. Because of their length, these masts require truck freight shipping. Our system automatically calculates our low cost truck freight rates to any location within the continental United States. With no obligation to purchase, simply click ADD TO CART, enter your ZIP Code, and click CALCULATE to view your shipping cost. Due to size restrictions, air freight is not available. For information regarding a surface freight shipment of these masts to locations outside of the continental US, send an e-mail inquiry to dxengineering@dxenginering.com.
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$555.99
DX Engineering Dual Input Remote Antenna Switches
DX Engineering Dual Input Remote Antenna Switches are two-radio 8-antenna switches (2x8) designed to switch coaxial lines in medium to high power RF antenna systems. With excellent performance on HF and 6 meters, they are typically used in single operator two-radio (SO2R) or multi-two contesting stations. They offer high levels of port-to-port isolation and reliability, the same as the famous DX Engineering RR8 series single input 8-port remote antenna switches. Manual dual-control operation of the DXE-RR2X8B is possible with two separate 1-of-8 control consoles that send +13.8VDC to the selected port, such as the DXE-EC-8. In this instance, the main transceiver has precedence over the secondary when attempting to use the same antenna port, so manual switching care must be exercised. An alternative first come, first served switching approach is available with the optional DXE-MX2X8 Interface Unit. It accepts BCD signals from two DXE-CC-8A Deluxe Control Consoles, and it locks out the selected port from the other radio, rather than main port precedence. DX Engineering RR2X8B Dual Input Switches may be interfaced with a customer-supplied logical switching unit. A third-party antenna controller with dual 1-of-8 switching may be used directly with the DXE-RR2X8B Switch or with BCD to the DXE-MX2X8 Interface Unit. If the DXE-MM2X8 Interface Unit is not used, the third party unit must provide protection against hot switching and prevent the main or secondary radio ports from attempting to select the same antenna port at any time. DX Engineering Dual Input Remote Antenna Switches feature a custom-made stainless steel chassis and a special RF shielded high impact thermoplastic cover. They have a custom conductive gasket to complete the seal between the cover and stainless steel housing base. Disassembly is not required for control wiring access. DX Engineering RR2X8B switches use removable screw terminals for the control cable plugs. These removable plugs greatly simplify installation by eliminating the need for soldering or opening the enclosure. The internal, covered relays are moisture-resistant, providing many years of exceptional performance. The circuitry of the DXE-RR2X8B switches allows the simultaneous selection of multiple antenna port with the required control signals. They can be used in complex antenna systems including stacked and phased arrays. Also, conventional one-of-eight antenna switching for two separate stations is possible using separate 1-of-8 switching arrangements. For example, the main radio Input "M" may select and be connected to any of the 8 ports while the secondary Radio Input "S" can simultaneously select any of the ports that the main isn't using. The main controller always has precedence over any selection made by the secondary controller, unless the DXE-MX2X8 is employed. Features of DX Engineering Dual Input Remote Antenna Switches include: * Rugged, attractive, fully shielded weatherproof housing * DX Engineering stainless steel V-clamp included for easy mounting to tower legs or masts from 1-2 in. diameter * Multi-conductor external cable plugs for easy removal, connection and maintenance * Excellent port-to-port Isolation; greater than 70 dB at 30 MHz, worst case; greater than 60 dB up to 60 MHz * High RF tolerant UHF connectors * Enclosed 16 ampere RF relays * Safe 12V DC relay operation * 16 MOVs for surge protection on control lines * 16 RF bypass capacitors Note: Whenever the DX Engineering "Documentation" is available, please look at the associated files for additional product information. Make your SO2R or other multi-radio multi-antenna operations easy with a DX Engineering Dual Input Remote Antenna Switch.
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$669.99
InnovAntennas OP-DES 50 MHz Yagi Antennas
InnovAntennas OP-DES 50 MHz Yagi Antennas are a relatively new development from InnovAntennas. OP-DES stands for Opposing Phase Driven Element System, in which the ends of the dipole radiator of these antennas is angled backwards towards the reflector, parallel to the boom. This results in opposing phase relationships in the ends of the driven element, providing a very clean directional pattern with few side lobes. The OP-DES Yagi has optimized gain over a wide frequency range, while retaining a good front-to-back ratio. The driven element dipole of an OP-DES antenna has a low impedance of 50 ohms. This eliminates the need for matching elements or a transformer balun. For this reason, the antenna is offered without a balun, but an RF choke balun made of ferrites on coax should be used at the feedpoint terminal studs. With the coaxial cable directly connected to the driven element dipole, well over full legal limit power levels are possible. Like all InnovAntennas Yagis, the OP-DES 50MHz antennas are extremely robustly constructed; the larger model uses truss cables for the boom. All elements of the antenna use high quality aluminum, the clamps and screws are made of stainless steel. The supplied mast clamp is designed for masts up to 2 in. (50mm) diameter. Application Description Monoband Yagis are often used at contest stations, or when you want to use only one band for a certain time, for example to focus on a specific target during sunspot minimum. Another advantage of monoband antennas are the stacking possibilities, i.e. the arrangement of two or more identical antennas properly spaced from each other. InnovAntennas Yagis provide all the necessary technical specifications, so there is no guesswork about the stack spacing. The InnovAntennas OP-DES 50 MHz Yagis are designed through careful numerical optimizations to provide excellent gain with good bandwidth. As a result, a low SWR of 1.1:1 is achieved in the frequency range of 50.0 - 50.6 MHz (6-element) or 50.0 - 51.35 MHz (5-element). The experience of the developer Justin, G0KSC ensure superior operations with these antennas in practice, often supported by a lively exchange between users. TECHNICAL DATA InnovAntennas OP-DES 50 MHz Yagi (Monoband) Antenna Mast Mount: Center Antenna Type Directional Antenna Band 6m Power Handling: 5000 W Polarization: Horizontal Balun Included: No Mast Diameter Max.: 2.00 in. (50mm)
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$529.99
DX Engineering Digital Rotator Controllers
DX Engineering Digital Rotator Controllers are completely new, extremely advanced and adaptable controllers for your directional antenna rotation systems. Offering the ultimate in operational capabilities, the RT-21DXE Digital Rotor Controllers are the best controllers available for your new rotor unit or as a replacement in existing systems. The RT-21DXE comes preset for 24 VDC for operation with the DXE-RT4500HD Heavy Duty Rotator, but they are easily adaptable for use with other directional antenna rotation systems because they are field programmable with convenient, internal, solderless jumpers. Replace your old-fashioned rotator controller with a modern, state-of-the-art digital controller. Order your DXE-RT-21DXE Digital Rotor Controller from DX Engineering today! DXE-RT-21DXE Additional Features and Specifications: You can add these great features to your existing rotator unit, without even climbing the tower! * Preset for 24 VDC for operation with the DXE-RT4500HD Heavy Duty Rotator * High-visibility LCD display with adjustable backlight brightness * Fully versatile controls for point-and-shoot or manual push-button operation plus presets * Automated rotator computer control through RS-232 or USB * PWM (pulse width modulated) variable-speed control * Start and stop ramping to reduce tower and antenna stresses * Precision heading accuracy up to 1/10 degree * Fully supports side-mounted antennas, soft limits prevent running into the tower * Allows over-travel up to 720 degrees total * Offset control allows the center of rotation at any heading, allows N & S center on the mast, and compensates for slipped mast * Fully user-programmable, reversal and brake delay, speed minimum and maximum, limits, ramps, and much more * Master/slave for stacked arrays, turn together or separately * Counter-rotation, install rotor above rotating tower * Easy front panel setup and setup utility software Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information.
Not Yet Reviewed
$714.99
InnovAntennas 144MHz 20 Element X-Pol LFA Low Noise High Performance Yagis
InnovAntennas 144MHz 20 Element X-Pol LFA Low Noise Yagis offer excellent performance in the 143.85 to 145.36 MHz This Loop Fed Array Yagi is a full-size beam with 19.02 foot boom, featuring 14.82 dBi of forward gain and a front to back specification of 39.1 dB. Designed by G0KSC, this LFA Yagi is a step forward in the design of yagi antennas, providing an ultra-low noise "front-end" for today's modern 144MHz radios. This rugged 20 element (10 horizontal and 10 vertical) features a 50-ohm feedpoint so there are no matching losses. The InnovAntennas 20-element X-Pol Yagi is built to withstand harsh weather conditions, with 1.5 x 1.5 in. (40x40mm) square aluminum tubing for the boom and .25 in. (6mm) aluminum tubing for the passive elements; the active elements are .5 in. (13mm) in diameter. Stainless Steel hardware is used throughout the antenna to ensure years of trouble-free service. The boom-to-mast bracket accommodates up to a 2-inch (50mm) mast. Specifications and Performance: Gain: 14.82 dBi Peak Gain: 14.82 dBi @ 144.3MHz F/B: 39.1 dB Peak F/B: 37.43 dB Max Power 10 kW SWR: Below 1.1:1 from 143.85MHz to 145.3MHz Boom Length: 19.02 ft. (5.8m) Turning Radius: 9.84 ft (3m) Wind Survival: 99.5 MPH (160 km/h) Weight: 14.33 lbs. (6.5kg) Wind Loading: 2.41 sq. ft. (0.22sqM) Stacking information: Vertical Stacking Spacing Distance: 3.1m for minimum under-lobes.
Not Yet Reviewed
$679.99
I0JXX Mast Mount Low Noise Preamplifiers
I0JXX Mast Mount Low Noise Preamplifiers offer high gain amplification with excellent noise figures in VHF and UHF amateur band optimized devices for casual operation or contest-grade directional antenna systems. Built for long-term tower top use, two high-power SPDT coaxial relays are used to protect the internal, band-specific I0JXX LNA using low-loss and high-isolation interconnections. These exceptional components are housed in a specialized weather and UV resistant polyamide black case with a drip edge surrounding two downward facing Type N female connectors mounted on a rugged, 12 gauge (2mm) aluminum panel. A separate female BNC is for DC power and control voltage, intended to be sent from the required sequencer via an inexpensive coaxial cable. Extraordinary receive-transmit-receive changeover performance is achieved by these compact 12VDC mast mounted units. Their internal LNA (low noise amplifiers) offer preamplification using ultra-low noise components as good or better than a typical receiver front end, which preserves the capabilities of a low-noise antenna or stacked array and the transceive system. The internal relays are connected to bypass the internal preamplifier when power is removed. An I0JXX SEQJXXBOX Sequencer can be used to control the I0JXX Mast Mount Low Noise Preamplifiers for two-way VHF or UHF communications. I0JXX Mast Mount Low Noise Preamplifiers are built with high quality components for many years of service. View the band unit specific specifications on each part detail page.
Not Yet Reviewed
$700.99
InnovAntennas 10M or 11M LFA-Q Loop-Fed Quad Beams
InnovAntennas 10M or 11M LFA-Q Loop-Fed Quad Beams from G0KSC represents significant development of LFA Yagis with a substantial difference: LFA-Q (Loop Fed Array Quad) Beams use top and bottom booms with through-boom LFA Yagi-style loops arranged vertically for every element. This very rugged design achieves better gain for a given length of boom and much lower noise for better signal quality compared to conventional Yagi antennas. InnovAntenna LFA-Q quad structure provides high directivity, eliminating unwanted spurious radiation. They achieve great side and rear rejection while retaining excellent gain, front-to-back and SWR bandwidth across the band. These are amazingly compact, high gain directional antennas, constructed to withstand serious weather conditions! Antennas of this series can be built and tuned to operate on a 500 kHz section of the 10 meter 28 MHz Amateur Band or on the 11 meter 27 MHz Citizens Band. The desired band is easily selected by changing the length of the outer element sections during construction – exact dimensions are provided in the instructions. The driven loop element feedpoint impedance is 50 ohms which allows a direct feed at high transmitting power. Vertical stacking of two or more antennas can significantly increase directivity, gain and signal quality; an interesting alternative when available space prevents the installation of long boom beam antennas. Just like other HF quads, LFA-Q vertical loop-fed quads are inherently quieter than a Yagi of the same size, making them a perfect choice for use in any location with high ambient noise level, such as a city or densely populated neighborhood. There is a 10M or 11M LFA-Q Loop-Fed Quad Beam version that matches your space, support, and wallet: - The 2-element economy version has loop spacing booms of only 2.3 ft. (70 cm); - The 3-element compact version booms are 10.5 ft. (3.2m) in length: - The 4-element performance model boom lengths are 26.9 ft. (8.2 m). Each LFA-Q is very stable mechanically, with mast clamps on each boom, top and bottom! Thanks to the use of high-quality materials, extensive modeling and testing, the durability and reliable performance of InnovAntennas 10M or 11M Loop-Fed Quad Beams is undeniable.
Not Yet Reviewed
$519.99
DX Engineering RR8B Remote Antenna Switch and Control Console Packages
DX Engineering RR8B Remote Antenna Switch and Control Console Packages bring a new level of convenience to your antenna setup. These packages combine DX Engineering's 5 or 10 kW key-down switch, plus a CC-8A or EC-8 Control Console. RR8B series Remote Antenna Switches feature: * 0-54 MHz operation with industry leading port-to-port isolation * 5 or 10 kW versions * Fully RF shielded with high strength, UV-resistant cover, stainless steel mounting bracket, and hardware * Lightning protection is standard * Solderless, removable plug for easy installation of control line with no disassembly * Can be wired without disassembly * Can select individual or multiple ports for stacking and phased array applications * Safe 12V DC relay operation * Unused antenna ports are open by design; may be internally jumpered to be grounded when not selected CC-8A Consoles feature: * 1-of-8 control format * 8 front panel LEDs to indicate switch position (with adjustable brightness) * Rear panel external plug * Operates on your 12V DC source, ideal for battery or emergency ops * Ergonomic selector knob * Powder-coated metal housing EC-8 controller features include: * 1-of-8 control format * Green power LED * Operates on your 12V DC source, ideal for battery backup or EMCOMM * Ergonomic selector knob * Powder-coated metal housing Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. When a complete remote antenna switching system is needed and high reliability is a must, DX Engineering RR8B Remote Antenna Switch and Control Console Packages are your best solution! * Important Note regarding DX Engineering Protection Plans and Kit Combo Contents NOTE: 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.
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$739.98
InnovAntennas LFA-Q 4 Element 50 MHz Loop Quad Beams
InnovAntennas LFA-Q 4 Element 50 MHz Loop Quad Beam from G0KSC represents significant development of LFA Yagis with a substantial difference. The LFA-Q (Loop Fed Array Quad) uses top and bottom booms and through-boom LFA Yagi-style loops arranged vertically for every element. This very rugged design achieves better gain for a given length of boom than standard or LFA Yagi. Also, instead of using symmetrical square or triangular loops, the shape of the loops has been compressed into rectangular form, so the short side sections are exactly 180 degrees out of phase resulting in a cancellation effect, like a balanced line. InnovAntenna LFA-Q achieves great rejection to the sides and the rear of the antenna while retaining excellent gain, f/b and SWR bandwidth across the band. These are amazingly compact, high gain antennas constructed to withstand serious weather conditions! The 50MHz 4 Element LFA-Q is made with tapered elements one-half inch (12.7mm) center sections and 3/8 inch (9.525mm) outer sections. The antenna has fully insulated elements which will ensure continuous, high performance for years to come. The LFA-Q has a twin-boom system, 32mm square with 1.6mm wall thickness. Two boom-to-mast brackets are provided, one on each boom, formed from marine grade stainless steel. Both brackets include 2 square U-bolts for the boom and 2 round U-bolts for the supporting mast. InnovAntennas LFA-Q 4 Element 50 MHz Loop Quad Beam Specs: Gain: 11.26dBi @ 50.150MHz F/B: 29.9dB @ 50.150MHz Peak Gain: 11.3dBi Peak F/B: 30.3dB Power Rating: 5kw+ SWR: Below 1.3:1 from 50.00MHz to 50.400MHz Stacking Distance: 5-8m (7m recommended) 2 Stacked Gain @ 7m spacing: 14.35dBi (free space) 2 Stacked F/B: 27.41dB 2 Stacked Gain @ 5.1m Spacing 15m above ground: 19.25dBi Boom Length: 4m. Weight: 6Kg / 13LB Turning Radius: 2.02m / 6.66ft Wind Loading: 0.22 Square Meters / 2.36 Square feet. Wind Survival: 160KPH/100MPH.
Not Yet Reviewed
$549.99
M2 Antennas 4329WL 432 MHz Yagi Antennas
M2 Antennas 4329WL 432 MHz Yagi Antennas are a lot of dynamite in a small package, with tight and clean patterns that speak for themselves. These antennas have been optimized for use in an array of two or more antennas, but individually, for its size, it beats anything out there in both pattern and gain! Mechanically simple and strong, 4329WL antennas are built on booms that are 1-1/2 in. in the middle that tapers through swaged ends to 1-1/4 and to 1 in. diameter tips. Polyethylene button insulators with stainless keepers secure the 3/16 in. rod elements. All of our antennas feature the CNC machined and 'O' ring sealed Driven Element Module ensuring reliability through weather and time! Ideally suited to the active weak signal enthusiast, as a single beam or in a stacked array, M2 Antennas 4329WL 432 MHz Yagi Antennas are ready for your installation. Order yours from DX Engineering.
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$599.99
Hustler Antenna G7-150-1 Commercial Base Vertical Antennas
Hustler Antenna G7-150-1 Commercial Base Vertical Antennas feature a 9.15 dBi maximum effective gain from 148 to 155 MHz. This high gain, the result of stacked 5/8 wave radiators, provides a more consistent coverage pattern, even in marginal areas. Constructed from high-strength aluminum and fiberglass, harsh environments do not affect their mechanical or electrical integrity and provide all-weather durability. Hustler G7-150-1 vertical antennas are totally self-supporting and easily assembled. Their longest individual part is approximately 4 ft. This reduced disassembled size makes them easy to handle, assemble, and move. Hustler Antenna G7-150-1 Commercial Base Vertical Electrical Characteristics: * Frequency coverage: 148-155 MHz * Maximum power input: 600 watts FM * Gain: 9.15 dBi (7 dBd) * Bandwidth: 3 MHz. under 1.5:1 * Bandwidth: 6 MHz for 2:1 or less * Impedance: 50 ohms nominal * Lightning protection: Shunt fed direct ground * Termination: Type N female Hustler Antenna G7-150-1 Commercial Base Vertical Mechanical Characteristics: * Length: 15 ft., 4 in. * Weight: 10 lbs. * Wind Survival: 100 mph * Equivalent flat plate area: 1.16 sq. ft. * Lateral thrust: 46 lbs. at 100 mph * Mounting: Up to 2.0 in. O.D. pipe When your communications requirements fall within the VHF Public-Safety or commercial spectrum, one of these Hustler G7-150-1 Commercial Base Vertical Antennas from DX Engineering will support those needs.
Not Yet Reviewed
$519.99
Hustler Antenna G7-150-2 Commercial Base Vertical Antennas
Hustler Antenna G7-150-2 Commercial Base Vertical Antennas feature a 9.15 dBi maximum effective gain from 148 to 155 MHz. This high gain, the result of stacked 5/8 wave radiators, provides a more consistent coverage pattern, even in marginal areas. Constructed from high-strength aluminum and fiberglass, harsh environments do not affect their mechanical or electrical integrity and provide all-weather durability. Hustler G7-150-2 vertical antennas are totally self-supporting and easily assembled. Their longest individual part is approximately 4 ft. This reduced disassembled size makes them easy to handle, assemble, and move. Hustler Antenna G7-150-2 Commercial Base Vertical Electrical Characteristics: * Frequency coverage: 154-161 MHz * Maximum power input: 600 watts FM * Gain: 9.15 dBi (7 dBd) * Bandwidth: 3 MHz. under 1.5:1 * Bandwidth: 6 MHz for 2:1 or less * Impedance: 50 ohms nominal * Lightning protection: Shunt fed direct ground * Termination: Type N female Hustler Antenna G7-150-2 Commercial Base Vertical Mechanical Characteristics: * Length: 15 ft., 4 in. * Weight: 10 lbs. * Wind Survival: 100 mph * Equivalent flat plate area: 1.16 sq. ft. * Lateral thrust: 46 lbs. at 100 mph * Mounting: Up to 2.0 in. O.D. pipe When your communications requirements fall within the VHF Public-Safety or commercial spectrum, one of these Hustler G7-150-2 Commercial Base Vertical Antennas from DX Engineering will support those needs.
Not Yet Reviewed
$519.99
Hustler Antenna G7-150-3 Commercial Base Vertical Antennas
Hustler Antenna G7-150-3 Commercial Base Vertical Antennas feature a 7 dBd maximum effective gain from 161 to 167 MHz. This high gain, the result of stacked 5/8 wave radiators, provides a more consistent coverage pattern, even in marginal areas. Harsh environments do not affect their mechanical or electrical integrity. They are constructed from high-strength aluminum and fiberglass for all-weather durability. Hustler G7-150-3 vertical antennas are totally self-supporting and are easily assembled. Their longest individual part is approximately 4 ft. This reduced disassembled size makes them easy to handle, assemble, and move. Electrical characteristics: * Frequency coverage: 161-167 MHz * Maximum power input: 600 watts FM * Gain: 7 dBd (9.15 dBi) * Bandwidth: 3 MHz. under 1.5:1 * Bandwidth: 6 MHz for 2:1 or less * Impedance: 50 ohms nominal * Lightning protection: Shunt fed direct ground * Termination: Type N female Mechanical characteristics: * Length: 15 ft., 4 in. * Weight: 10 lbs. * Wind Survival: 100 mph * Equivalent flat plate area: 1.16 sq. ft. * Lateral thrust: 46 lbs. at 100 mph * Mounting: Up to 2.0 in. OD pipe When your communications requirements fall within the VHF Public-Safety or commercial spectrum, one of these Hustler G7-150-3 Commercial Base Vertical Antennas from DX Engineering, will support those needs.
Not Yet Reviewed
$519.99
Green Heron RT-21-M2 Universal Digital Rotor Controllers
Green Heron RT-21-M2 Universal Digital Rotor Controllers are completely new, extremely advanced and adaptable controllers for your directional antenna rotation systems. Offering the ultimate in operational capabilities, Green Heron RT-21-M2 Universal Digital Rotor Controllers are the best controllers available for your new rotor unit or as a replacement in existing systems. You can add these great features to your existing rotator unit, without even climbing the tower! * Pre-programmed for M2 Antennas rotator systems * High-visibility LCD display with adjustable backlight brightness * Fully versatile controls for point-and-shoot or manual push button operation plus presets * Automated rotator computer control through RS-232 or USB * PWM (pulse width modulated) variable-speed control * Start and stop ramping to reduce tower and antenna stresses * Precision heading accuracy up to 1/10 degree * Fully supports side mounted antennas, soft limits prevent running into tower * Allows over-travel up to 720 degrees total * Offset control allows center of rotation at any heading, allows N and S center on same mast, and compensates for slipped mast * Fully user-programmable, reversal and brake delay, speed minimum and maximum, limits, ramps, and much more * Master/slave for stacked arrays, turn together or separately * Counter-rotation, install rotor above rotating tower * Easy front panel setup and setup utility software Replace your old-fashioned rotator controller with a modern, state-of-the-art digital controller! Green Heron RT-21-M2 Universal Digital Rotor Controllers from DX Engineering are pre-programmed specifically for M2 Antennas rotators. However, they are easy to setup for all other rotator units because they are field programmable with convenient, internal, solderless jumpers. Get yours today!
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$649.00
Hamplus Antenna Control Switching Devices
Hamplus Antenna Control Switching Devices include automatic band data controlled remote antenna switching systems including full web remote capability without a PC. Hamplus automates HF + 50 MHz switching for 8 to 16 antennas and from 2 to 8 radios, including devices to connect multiple directional controllers to as many as 8 different antenna rotators. Band-data and frequency reading, multi-function control consoles include support for all major brand transceivers with radio specific control cables. Hamplus also offers manual multi-port to multi-radio antenna switches and a four-stack antenna switching system. Years of Amateur Radio and professional experience shows in these components for emerging and elite DXers as well as established multi-radio contest stations. Hamplus products will improve the function and performance of your station. Click on each part number for specific descriptions, specifications, more information and links to compatible or required products.
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$521.99
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$649.99