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COMTEK Stack 3 Yagi Switch Control Consoles
COMTEK Stack 3 Yagi Switch Control Consoles are available as replacements for Stack 3 Yagi Systems. When connected to the Stack 3 Switch Relay Unit, these control consoles allow you to select one antenna, all antennas, or any combination of two antennas. Indicator lights for each antenna tell you at a quick glance which antennas are selected. Choose either 115 V AC or 12 V DC control console operation. Keep using your Yagis together! Order COMTEK Stack 3 Yagi Switch Control Consoles from DX Engineering!
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$124.99
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$125.99
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$63.00
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COMTEK Stack 2 Yagi Switch Control Consoles
COMTEK Stack 2 Yagi Switch Control Consoles are designed for use with newer or older COMTEK Stack 2 systems. These are the control consoles, only. They include a 2.1mm power cord and operate on 12V DC. Station power, if used, must be 12V DC at 1A minimum (fused). A 3-conductor control line between the control console and relay unit is required. Whether you are replacing a damaged console or building a new system from parts, these COMTEK Stack 2 Yagi Switch Control Consoles from DX Engineering are what your stacking system needs!
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$124.99
$50.00
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Anderson Power Products® DC Power Connectors
Powerpole® Connectors with Plated Silver Contacts maximize performance and reliability by offering up to 10,000 mating cycles before failure. They are even recommended for circuit interrupt or hot-plug applications. That means you won't have to shut down your shack supply every time you want to disconnect a peripheral device. Powerpole® Standard Housings allow you to color code, or just change the color of, your Powerpole® connectors. Their standard housings are available in a wide array of colors. The metal Power Contacts are not included with these housings, but are available separately. These standard housings will not mate with the finger-proof housings. Powerpole® Ultrasonically Welded Standard Housings feature connector housings that are ultrasonically welded to create a one-piece connector unit using an APP® special process. After welding, retaining pins are no longer required to secure the stacked housings to each other. This allows Powerpole® 15-45 connectors to be used as durable one-piece connector headers. Retention clips prevent Powerpole® 15-45 blocks from unintended disconnection. They feature a small finger tab for easy insertion and removal. Once your Powerpole® connection has been made, inserting a retention clip will keep the connection from easily pulling apart. Organize and connectorize! Get rid of rats nests and tangled inefficient power connections. Order Anderson Power Products® DC Power Connectors from DX Engineering!
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COMTEK Jerry Sevick W2FMI Series Current Baluns
COMTEK Jerry Sevick W2FMI Series Current Baluns were inspired by the writing of Jerry Sevick, as published in his book "Understanding, Building, and Using Baluns and Ununs" also available from DX Engineering. COMTEK baluns are value-engineered for maximum performance at a reasonable cost. They provide a superb, efficient transition between unbalanced coax and balanced antennas. COMTEK Baluns feature: * Jerry Sevick design with modern improvements from DX Engineering's in-depth balun research and development * Unique high-voltage compensating capacitors for unequaled SWR bandwidth * Outstanding ferrite-mix coated toroid core with special design to accommodate close coupling without excessive stress * Exceptionally high and consistent common mode impedance across the specified bandwidth, which provides isolation where it is needed most * Special wire size selection and Teflon-insulated wire sleeves provide exact impedance matching and superb insulation, unlike common Thermaleze wire * Typical insertion loss is less than 0.2 dB * Power handling on HF is 3 kW CW and 5 kW SSB on single core models, 5 kW CW and 7 kW SSB on dual core models * May be used to 54 MHz with reduced ratings * Gasketed SO-239 connectors are silver plated and have Teflon insulation * Sealed in a weatherproof 4 in. x 4 in. x 2 in. NEMA box * Stainless steel hardware Note: Polarity markings on baluns are used for matching phase on balanced antennas when stacking beams for a phased array. Also, the positive terminal should be connected to a vertical element or Inverted-L and the negative terminal goes to the radials. For most regular applications on one antenna, including beams, dipoles and most wire antennas, balun polarity doesn't matter. The best Amateur Radio baluns in the world are from DX Engineering. That includes COMTEK Jerry Sevick W2FMI Series Current Baluns!
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DX Engineering Aluminum Tubing
DX Engineering High-Strength Aluminum Tubes are ideal for your antenna building projects. It is made available in sizes that fit into and over the next, with close tolerances specifically designed for strength when joined and overlapping only by a few to several inches, to build Yagi, Moxon or vertical antenna elements. NOTE: This tubing is NOT intended for each size to telescope completely into the full length of the next; it cannot be used for telescopic mast building. DX Engineering aluminum tubing is manufactured to very close tolerances. This provides the greatest amount of surface contact between nesting tubes for mechanical and electrical stability. Due to the close tolerance, any burrs, dirt, grit or other foreign material, as well as dents, dings and unseen bending or crushing suffered during shipment will cause binding that prevents this aluminum tubing from fully nesting. 6063-T832 seamless drawn aluminum tubing is available in 3, 6 and 12 ft. lengths. 6063-T832 tubing provides good resistance to general corrosion, including stress corrosion cracking, and an excellent surface appearance. Use a series of 3 ft. lengths to build an element that tapers more quickly for lower wind-resistance applications. Use a series of 6 ft. lengths to make an element that tapers more slowly for greater strength and bandwidth. The 12 ft. lengths are great for HF Yagi construction. Most sizes (except 12 ft.) are available slit on one end for use with DX Engineering stainless steel element clamps. If un-slit ends are required for your applications, merely insert the slit end into the next larger size in the stack and use your own attachment method. 6063-T832 tubing features a 0.058 in. wall thickness and is available in 1/8 in. increments from 3/8 in. to 2-1/8 in. O.D. 3003-H14 drawn aluminum tubing features a 0.035 inch wall thickness and a 1/4 inch outside diameter. Each piece is supplied with non slit ends and is available in both 3 foot and 6 foot lengths, making them ideal for your antenna building projects. If your setup requires maximum strength at very long assembly lengths, then choose DX Engineering 6061-T8 tubing. This heavy-duty version features a 0.120 in. wall thickness and is available in 1/4 in. increments from 1-1/2 in. to 3 in. O.D. Packaged shipments of 6 ft. tubing have oversize shipping fees, regardless of the number of 6 ft. pieces. Therefore, order more 6 ft. pieces to spread oversize fees over more tubing for a more cost effective shipment. Tubing that is 12 ft. long MUST be shipped by truck freight. If you need many pieces of the same size in a 12 ft. tube length, then buying DX Engineering High-Strength Aluminum Tubing Bundles (elsewhere in our catalog) maximizes the economy of scale for your shipping costs. NOTE: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Order DX Engineering High-Strength Aluminum Tubing here.
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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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