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Mastrant Antenna Support and Guy Line Ropes
Mastrant Antenna Support and Guy Line Ropes are available in several sizes and strength ratings, perfect for support of wire antennas, vertical antennas and antenna masts, as well as support of Yagi booms and elements. Mastrant ropes are of the highest quality for strength and are UV-protected for extended longevity. MASTRANT-O is a highly reflective rope (bright orange plus braided reflective tape) based on long-term proven Polyester (Dacron) product line. It is designed for maximum visibility in public places such as Field Day and POTA activities. Like all Mastrant ropes, it is UV stable and resistant to all weather conditions. It has low weight, great abrasion resistance, great durability and is nonconductive (no effect whatsoever on your antenna). Moreover, in contrast to ropes made from aramid fibers (Kevlar, Vectran, Technora, Twaron), it has knot strength about 60 %. Mastrant-P and Mastrant-R Ropes are stronger than other synthetic ropes of the same size, made from proven modern polyester. Mastrant-Q is a new rope made from a blend of polyester and polypropylene, designed specifically for guying applications. It offers an excellent performance-to-price ratio and has a knot strength of approximately 60%. It replaces Mastrant-P in diameters of 6 mm (1/4 in.) and larger. Mastrant-S is a similar polyester/polypropylene rope, distinguished by its highly reflective strands for increased visibility. Mastrant-M is their highest strength rope with the Dyneema® DM20 core, a superior synthetic rope offering high performance at an affordable price. Very high strength, negligible elongation, very low weight, and great abrasion resistance are all attributes that make Mastrant-M the best rope for guying. Larger, stronger sizes of Mastrant-M are used in Europe and other parts of the world for tower guying. Durability and safety are of prime concern to ensure that an antenna installation remains fully operational for a long time. Antennas and guy lines are exposed to changing weather conditions, mechanical strain, UV radiation, humidity, and more. These non-conductive synthetic fibers have all the necessary qualities: high strength, negligible stretch but good flexibility, long life, low moisture collection, fast drying, a minimum bending radius adding the ability to tie knots, good UV radiation resistance, weather durability and resistance to acids and alkali. Conversely, steel guying wires are heavy, difficult to work with, and their strength deteriorates with time due to corrosion and general aging. Electrical conductivity of steel guys is an undesirable feature, as they interact with the antennas and adversely modify radiation patterns. Thanks to recent developments in synthetic materials, both amateur and professional users are changing over to non-conductive guys and ropes. Mastrant offers these products for a variety of applications, from thin support lines used for wire antennas and beams, to rope guys for supporting small and portable masts and vertical antennas. When you need quality rope to install, replace, or modify your antenna systems, consider Mastrant Antenna Support and Guy Line Ropes, now available from DX Engineering.
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$298.99
$239.19
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Coaxial Dynamics Plug-In Elements
Coaxial Dynamics Plug-In Elements are calibrated to exacting specifications to assure interchangeability with one another, with any Coaxial Dynamics and Bird Electronic RF power instrument in the 7/8 in. line size - whether purchased today or 20 years ago. Their calibration is for any 30 microampere full scale meter movement, including Bird Model 43 and Coaxial Dynamics meters, so these elements may be used interchangeably with very good results. Readily available in several full-scale power ratings from 5.0 Watts to 10,000 Watts and eight frequency ranges starting with 2 to 30 MHz through 1.1 to 1.8 GHz. There are Coaxial Dynamics Plug-In Elements to satisfy most Amateur Radio and commercial RF testing requirements. Element accuracy is maintained by calibrations using RF Power Standards (NIST traceable), supported by more than 30 years of history and experience! Your confidence in the quality and dependability of Coaxial Dynamics Plug-In Elements is secured with the exacting manufacturing techniques and high tolerances that produce consistent quality and repeatable accuracy from element to element. Each element carries a Coaxial Dynamics Two Year Limited Warranty. Whether you are monitoring station power, checking antennas, doing bench repairs or just need accurate equipment output readings, Coaxial Dynamics Plug-In Elements,interchangeable with Bird Electronic Corporation elements, provide frequency coverage and power ratings for your Directional Wattmeter. Order your own high-quality Coaxial Dynamics Directional Wattmeters and Plug-In Elements from DX Engineering!
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$189.00
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$295.00
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$236.00
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Scratch & Dent
Phonema Miranda S Speakers
Phonema Miranda S Speakers are designed to deliver high-quality audio with special attention to the intelligibility of SSB signals. The high-quality wide range driver is specifically positioned into a custom designed medium density fiber cabinet which is lined internally with a variety of specially selected acoustical foam materials. The resulting sound of Miranda S is clear and sharp, with a frequency response that makes it easy to understand both voice and CW signals. Bass is present and well controlled when listening to broadcast signals. The midrange curve suits voice frequencies so that they stand out above the QRM, all with the warmth of a hand-crafted wooden speaker that reduces listener fatigue. The Miranda S is a gorgeous looking and great sounding speaker that is perfect for many new and old transceivers. This 8-ohm speaker is a convenient size that matches the listed rigs, but it will work for virtually any radio. The rich and articulate sound is perfect for listening to your transceiver or receiver. Miranda S Speakers offer these features: * Speaker Cabinet Material: MDF (medium density wood fiber) * Internal Materials: Acoustic Foam AG150 and Basotect * Pull-out Bail under the front to adjust height and angle to match radio * Power Handling: 10 w * Impedance: 8 ohms * Frequency response: 80 - 18,000 Hz * Sensitivity: 83 dB * Driver protection: IP64 * Input, rear panel: Mono 3.5mm jack * Dimensions (WHD): 6.02 x 3.98 x 10.04 in. (153 x 101 x 255 mm) * Weight: 3.48 lbs. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Phonema has gained an excellent reputation for quality and value. Order Phonema Speakers from DX Engineering and discover the difference a quality speaker can make!
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$241.99
$217.79
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Summit Racing 20 Hard Coolers
In the world of keeping cool, you are only as good as your gear. Duration is the name of the game, and no matter what your game is, you can count on the Summit Racing hard coolers to get you there. Summit Racing 20 hard coolers are tough, rugged, and durable. The smallest of the Summit Racing hard cooler line, they are great for personal use and day trips. Value is built-in to every part from top to bottom--value Summit Racing knew you would appreciate, at a price that you can afford. Key features and benefits: * Double barrel rubber T-grip latches * Smooth opening triple hinge lid * Replaceable purge valve for easy draining * 5-day "Insulation Sensation" * Rubber pads for ultimate skid proof stability * 1.25 in. rubber gasket drain plug * Steel lock down plates that double as bottle openers * High performance airtight gasket * Weighs 15.21 lbs. * Dimensions: -- Outer: 21.1 in. × 13.3 in. × 14.3 in. -- Inner: 14 in. x 9 in. x 8 in.
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$199.99
$145.50
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Open Box
Sangean Digital HD Broadcast Receivers
Sangean Digital HD Broadcast Receivers are top-quality AM/FM stereo radios available in two models. Both feature stereo speakers and—like your car radio—these portable or table radios offer superb digital HD radio sound! Sangean HD receivers employ a large backlit LCD screen, and easy-to-use rotary knobs are provided for tuning and volume. There is a built-in alarm clock function with sleep timer and Sangean's Humane Wake System (HWS) with buzzer or radio alarm. Sangean HD receivers have a convenient auxiliary input and a stereo earphone jack; and their controls include presets for FM and AM. RBDS technology displays the station name, call-sign, song title or other digitally transmitted information—and RBDS can set the clock automatically! Sangean's HD radios include an AC adapter, but the portable model may also be operated from four "C" cells, not included. Check these Sangean HDR-16 digital HD PORTABLE radio features: * HD Radio digital and analog AM / FM-stereo reception * 40 Memory Presets (20 FM, 20 AM) * PAD (Program Associated Data) Service * Support for Emergency Alerts Function * Automatic Multicast Re-Configuration * Automatic Simulcast Re-Configuration * Auto Ensemble Seek * Real Time Clock and Date with Alarm and Sleep Function * 2 Alarms; by Radio, Buzzer * HWS (Humane Wake System) Buzzer and Radio * Snooze Function * Tone and Bass Control * Information Display for Channel Frequency, Call Sign, Radio Text, Audio Mode, Service Mode, Signal Quality and Clock Time * Easy-to-read LCD Display with Backlight * Powered by four "C" cells * Low Battery LED Indication * Auxiliary Input for Additional Audio Sources * Record Output for Connecting to Hi-Fi System or Recording from Audio Program * I/O Jacks: DC In, Line-Out (Rec-Out), Aux-In, Headphone and HD / FM Antenna * 7.5 V 0.8 amp power adapter included Sangean HDR-18 digital HD TABLE RADIOS have these additional features: * Supplied with an Infrared Remote Control for ultimate convenience * 20 Memory Presets (10 FM, 10 AM) * Nap and Snooze Function * Mono Control for improved FM analog weak-signal audio quality * 10 Button Keypad for AM / FM Direct-Frequency Input * Display Dimmer Adjustment * Acoustically Tuned Wooden Cabinet * Internal / External FM Antenna Switch to Select Built-in or External Antenna * I/O Jacks: DC In, Aux-In, Rec-Out, Headphone, FM External Antenna Terminal and AM External Antenna * 12 V 1.5 amp power adapter included Note: For additional product information, please check the files under the "Documentation" tab. Look no further than DX Engineering for high-quality Sangean Digital HD Broadcast Receivers!
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$247.99
$193.43
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Diex Antennas Two-Band Trap Shortened Rigid Rotatable Dipoles
Diex Antennas Two-Band Trap Shortened Rigid Rotatable Dipoles offer high performance multi-band HF operations, and they are an excellent choice where there's not enough space for a full-size dipole or Yagi. Crafted with precision in Brazil using quality materials, these aluminum tubing antennas are designed to withstand tough environments assuring long-lasting, exceptional performance. They are packed partially assembled, saving valuable time and effort. Typically mounted on a rotating mast, these unique multi-band HF antennas provide high-band directionality depending upon installed height above ground. Given the nature of shortened low-band antennas with limited SWR bandwidth, these antennas feature the flexibility of physical adjustment to set the lowest SWR to a specific frequency. DIEX Antennas Two-Band Trap Shortened Rigid Rotatable Dipoles power handling is 1500W PEP SSB, which is further limited if using an antenna tuner. NOTE: Diex Antennas recommends that a directional HF antenna should be mounted on a tower at a minimum height of 33 to 50 ft. (10 - 15 meters) above ground level and must be installed in the clear, away from power lines, trees, buildings or other towers and antennas.
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$295.99
$236.79
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Astron Isolated Step-Down DC/DC Converters
These Astron Corporation Isolated Step-Down DC/DC Converters were designed for use on electric forklifts (where high line transients and voltage spikes are common) and will operate on either positive-ground or negative-ground electrical systems. They incorporate short circuit protection, overvoltage protection, overload protection, terminal block connections, and an extra terminal to allow the converters to be turned on/off with the ignition switch. Utilizing input voltages from 22 to 56 Vdc, these fully isolated power converters will provide a regulated DC output of 13.8 volts, with a maximum deviation of only .04 Vdc under full load! Ripple is an incredible 20 mV RMS! When you need to find a step-down DC to DC converter to reach that magic 13.8 Vdc, these Astron Corporation Isolated Step-Down DC/DC Converters from DX Engineering are your magic carpet!
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$177.95
$142.36