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6 Results Found For "in-line"
DX Engineering 450 Ohm Ladder Line
DX Engineering 450 Ohm Ladder Line is a transmitting grade low-loss parallel-wire RF feedline featuring a strong, waterproof, UV black polyethylene insulation. To maintain the wire spacing between the conductors while reducing losses, the integral flat plastic material alternates with rectangular openings, which explains the "Window Line" nickname. Capable of handling over 3 kW of RF power, DXE-LL450 is a very low-loss transmission line across HF. It is ideal for exceptionally long feedline runs and for low band wire antennas operated on multiple bands on which the feedpoint impedance can vary significantly, causing mismatch and elevated SWR. Unlike coaxial cables, DX Engineering DXE-LL450 Ladder Line maintains low RF losses at frequencies where antenna feedpoint impedance mismatches cause high SWR. It can provide significantly higher efficiency than coaxial cable when feeding non-resonant antenna systems that are matched with a wide impedance range antenna tuner. DXE-LL450 450 Ohm Ladder Line is a high-quality flat RF feedline, about 0.938 in. wide (15/16") with two 16-gauge copper-clad steel wire conductors (29 AWG x 19 strands) that provide the strength to hold up for long spans between supports without twisting. It exhibits a nominal impedance of around 400 Ohms and a nominal Velocity Factor of 91 percent. For proper performance, LL450 Ladder Line must be installed suspended through the air supported by insulators every 25 ft. or less, kept at right angles and several inches away from other wires, and at least one foot away when run parallel to the earth or large metal surfaces. Installing with an axial twist of one turn per 10 ft. can reduce wind, rain and ice loading, RF coupling and RF noise. DXE-LL450 can be mounted with insulators and suspended on metal or wood posts or run along a wood fence line, only if the fence has no wires or metal mesh that couples RF noise or unbalances the feedline. Often used for non-resonant wire doublet antennas, DXE-LL450 can be more easily terminated outdoors to a DXE-MC20-C4-1 4:1 Balun or a DXE-MC20-1-1T 1:1 Balun. Then, with no inline switches or relays, directly connect the antenna system to a typical indoor wide range antenna tuner using a solid dielectric coax, not foam dielectric, to handle high voltage at high SWR. DXE-213U or DXE-214 Coaxial Cable Assemblies 12 or 18 ft. with PL-259s are perfect for this method, which eliminates the need for a special balanced tuner, and avoids the losses and detuning effects caused by unbalancing when ladder line is routed indoors near wires and ducts. DXE-LL450 is sold by the foot, previously sold as DXE-LL450-CTL, this is the same ladder line with a new part number. It is also available in spools of 500 ft. DXE-LL450-5C and 1,000 ft. DXE-LL450-1K, which are specified for DX Engineering Reversible Beverage System Antennas. NOTE: This type of feedline is intended for MF and HF use and is not suitable for use above 54 MHz. Also consider DX Engineering 300 Ohm Ladder Line, DXE-LL300, an excellent alternative low-loss HF feed line that reduces impedance extremes on non-resonant HF multiband antenna systems.
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$1.18
DX Engineering 300 Ohm Ladder Line
DX Engineering 300 Ohm Ladder Line is a transmitting grade low-loss parallel-wire RF feedline featuring a strong, waterproof, UV black polyethylene insulation. To maintain the wire spacing between the conductors while reducing losses, the integral flat plastic material alternates with rectangular openings, which explains the "Window Line" nickname. Capable of handling over 2.5 kW of RF power, DXE-LL300 is a very low-loss transmission line across HF that is ideal for long feedline runs. It is an excellent feedline choice for a low band non-resonant wire antenna operated on multiple bands on which the impedance varies significantly, causing mismatches and elevated SWR. Unlike coaxial cables, DX Engineering DXE-LL300 Ladder Line maintains low RF losses at frequencies where impedance mismatches cause high SWR. The lower impedance of DX Engineering 300 Ohm Ladder Line is actually better suited than 450 ohm ladder line for limiting the impedance extremes of non-resonant multiband antennas. It can provide significantly higher efficiency than coaxial cable for feeding non-resonant antenna systems that are matched with a wide impedance range antenna tuner. DXE-LL300 Ladder Line is a flat, high-quality RF feedline, about 0.438 in. wide with two 18-gauge copper-clad steel wire conductors that provide the strength to hold up for long spans between supports without twisting. It exhibits a nominal impedance of 275 Ohms and a nominal Velocity Factor of 88 percent. For proper performance, LL300 Ladder Line must be installed suspended through the air supported by insulators every 25 ft. or less, kept at right angles and several inches away from other wires, and at least one foot away when run parallel to the earth or large metal surfaces. Installing with an axial twist of one turn per 10 ft. can reduce wind, rain and ice loading, RF coupling and RF noise. DXE-LL300 can be mounted with insulators and suspended on metal or wood posts or run along a wood fence line, only if the fence has no wires or metal mesh that couples RF noise or unbalances the feedline. Most often used for non-resonant wire doublet antennas, dipoles, and inverted-vees, DXE-LL300 can be more easily terminated outdoors to a DXE-MC20-1-1T 1:1 Balun. Then, with no inline switches or relays, directly connect the antenna system to a typical indoor wide range antenna tuner using a solid dielectric coax instead of foam dielectric, to handle high voltage at high SWR. DXE-213U or DXE-214 Coaxial Cable Assemblies 12 or 18 ft. with PL-259s are perfect for this method, which eliminates the need for a special balanced tuner, and avoids the losses and detuning effects caused by unbalancing when ladder line is routed indoors near wires and ducts. DXE-LL300 is sold by the foot, previously sold as DXE-LL300-CTL, this is the same ladder line with a new part number. It is also available in spools of 500 ft. DXE-LL300-5C and 1,000 ft. DXE-LL300-1K. NOTE: This type of feedline is intended for MF and HF use and is not suitable for use above 30 MHz.
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$0.77
DX Engineering Pocket Pad Notebooks
"I should've written that down." How many times have you said that? Now you CAN write it down with DX Engineering Pocket Pad Notebooks. These pocket-size notebooks are perfect for keeping with you when you are on the go. Things you want to remember for later can go in the book instead of draining from volatile RAM. Of course, they are also good for the XYL's shopping lists, leaving someone a note, your own DX Engineering wish list and other memory-sensitive stuff. These 3 1/2 by 5 1/4 in. shirt-pocket notebooks contain 80 lined pages AND sport the DX Engineering logo. DX Engineering contact information is right on the front cover! Order some of your own DX Engineering Pocket Pad Notebooks today. (Write it down so you don't forget!)
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$7.99
DX Engineering Shielded Control Cable
DX Engineering Shielded Control Cable is a high quality shielded cable that is suitable for indoor or outdoor use. It features nine #24 AWG annealed tinned copper stranded conductors with color coded PVC insulation and aluminum foil shielding, plus a bare #24 AWG stranded tinned copper drain wire. This RoHS compliant cable supports an eight port remote switch with 1-of-8 control lines plus a common ground conductor AND a separate shield conductor. This cable has a thick, durable, chrome-gray PVC jacket. Plus, using a cable that has stranded conductors relieves the worry of breaking one of the conductors; unlike a different type of cable made with solid wire. This shielded control cable is ideal for use with DX Engineering Remote Antenna Switches, Four Square and Phased arrays, and should be considered a great choice for any of your low-current, custom remote switching applications. This cable is excellent for building accessory cable assemblies, RS-232 data cables, switching cables, and for control of low-voltage relays including receiving and transmitting antenna arrays. This cable is not intended for use with rotators or other medium current applications. You may order DX Engineering Shielded Control Cable by the foot in any lengths up to 500 feet and is available in a 1,000 ft. roll. Here are the "specs" on this very useful shielded control cable: Number of stranded conductors: 10 Number of insulated conductors: 9 Insulated conductor AWG (Strands): 24 (7/32) Drain wire AWG (Strands): 24 (7/32) Insulation nominal wall thickness: 0.010 in. Nominal Capacitance (pF/ft.): 30 Jacket nominal wall thickness: .035 in. Nominal outer diameter: 0.240 in. Cable Temperature Range: -20 to 80 degrees C Cable Voltage: 300 V
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$2.09
DX Engineering RG-6U 75-ohm Flooded Quad Shield Coaxial Cable
DX Engineering RG-6U 75-ohm Flooded Quad Shield Coaxial Cable is our top-of-the-line, direct-bury RG-6. It has low RF signal loss and provides greater protection against electromagnetic interference. Available cut-to-length by-the-foot or in 1,000 ft. spools, this is the best ultra-high quality RG-6/U self-healing quad-shield cable solution. This cable may be terminated in the field with black EX6XL Type-F Universal Compression Connectors, also available from DX Engineering. DXE-RG-6UFQ cable is ideal for many receiving applications including active or passive HF Amateur Radio and SWL receive antenna arrays and systems, LW and MW magnetic loop antennas, Beverage antennas, over-the-air TV, AM and FM broadcast reception, CATV systems and video distribution and satellite radio installations such as Sirius/XM. In fact, the low-loss characteristic of our RG-6 cable is excellent for digital audio up through microwave frequencies of satellite radio systems! Our RG-6 flooded quad shield cable has gas-injected polyethylene foam dielectric for the lowest loss and maximum moisture resistance. With an 18 AWG copper-clad steel center conductor it is extremely strong and durable. Two foil shields plus two high-density aluminum braids provide ultimate four-layer RF shielding. The waterproof UV protected black jacket is made with a tough and flexible polyethylene (PE). This cable is infused with a flooding compound that provides a permanent barrier to moisture and is self-healing to minor cuts. The nominal impedance of DXE-RG-6UFQ cable is 75 ohms with a nominal Velocity Factor of 82% (VF = 0.82). The minimum bend radius is 2.500 in. Beware of cheaply made cable with unknown impedance and loss characteristics. If some other cable is substantially less expensive, that should tell you something, right? DX Engineering RG-6U 75-ohm Flooded Quad-Shield Coaxial Cable is absolutely the best RG-6 quad-shield cable available and it is RoHS compliant! Check these super low attenuation figures! 5 MHz: 0.6 dB/100 ft. 30 MHz: 1.1 dB/100 ft. 55 MHz: 1.6 dB/100 ft. Losses at 1.8 MHz are virtually insignificant over several hundreds of feet of this coaxial cable. It can be used for low band receive antennas and arrays without the complications of using a preamp at the antenna. Are you installing or upgrading a Low Band receiving antenna or a CATV or satellite video distribution system that uses RG-6/U Quad cable? If so, then order the new benchmark in RG-6 cable: DX Engineering RG-6U 75-ohm Flooded Quad Shield Coax. Your efforts will be rewarded with the results that you expect, using the best cable from DX Engineering.
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$0.37
DX Engineering Shielded CAT5e Control Cable
DX Engineering Shielded CAT5e Control Cable is a high-quality, shielded outdoor FTP (Foil Twisted Pair) CAT5e cable. It features four twisted pairs of 24 AWG solid wire with aluminum foil shielding, plus a solid tinned copper drain wire, providing a total of 9 conductors for low voltage AC or DC switching applications. The durable polyethylene jacket is rated for direct burial. Another feature of DX Engineering Shielded CAT5e Control Cable is the "rip cord," which allows for easy stripping of the heavy jacket without worry about nicking or accidentally cutting the conductors. DX Engineering Shielded CAT5e Control Cable is an excellent choice for use in all outdoor applications, including switching, networking, data transfer, and phone lines. As a data transfer line, it supports 10/100/1,000 Mbps.
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$0.78