93 Receiving Active Magnetic Loop MF/HF Receiving Antenna The well-known RF-PRO-1B® is now manufactured and sold exclusively by DX Engineering. This original Pixel loop design incorporates a high performance Norton preamplifier designed by Clif on Laboratories’ engineer Jack Smith, K8ZOA with excellent broadband reception from 50 kHz to 30 MHz. Installation is easy, because it's only 38 inches in diameter. When rotated, this antenna provides deep nulls for ef ective reduction of directional noise and interfering signals. Ideal for Amateurs, SWLs and AM DXers, this loop also of ers up to 30 dB rejection of electrostatic field noise. This receive only antenna cannot be connected to a transmitter RF output. • Rejects power line noise • Rugged construction, easily mounts to a pole or flat vertical surface • No manual tuning necessary • Low profile design works at ground level • Modular construction for easy installation and maintenance DXE-RF-PRO-1B Active Magnetic Loop Antenna .......................................... $799.99 QRM Eliminator Get ready to make contacts you thought were impossible thanks to WiMo’s new adjustable phasing network for canceling out QRM. The team at WiMo understand the headaches Amateur operators experience due to noise interference from local electronic sources, such as computers, TVs and power supplies. The company’s easy-to-tune QRM Eliminator is a handy device that gets rid of local interference up to an S9 level. The inline unit is inserted into the feedline from the trx to the antenna without any additional radio modifications required. The box includes a built-in PTT control which enables the QRM Eliminator to stay connected during transmit. The QRM Eliminator uniquely allows you to adjust phase angle as well as amplification to cancel out unwanted signals before they reach the receiver front-end. An additional auxiliary receiving antenna, such as a 2m antenna or even a couple feet of wire, is required. WMO-26000 QRM Eliminator, Adjustable Phasing Network ................... $209.99 WMO-26000 NOISELOOP Portable Receive Flag Antenna Kit Based on a design by Don Kirk, WD8DSB (see QST article, March 2021), this kit lets you build a receive-only portable directional HF loop antenna measuring only 48" by 24" plus 36" mast handle. Used for tracking down local signals while walking or stationary with your portable HF receiver (e.g., HT, SW, IC-705 or similar rigs), the antenna features a cardioid pattern at the horizon with a deep null of up to 30 dB rejection. It makes an excellent tool for locating noise sources from 1.8 through 30 MHz and for low-noise, general coverage reception from the AM broadcast band through 30 MHz. Kit includes fiberglass tubing for the frame and handle, mounting plate, separate PC boards for the bifilar wound transformer and load resistor, antenna wire, coaxial cable with male BNC, and stainless steel hardware. Simple hand tools and a soldering iron are required for assembly, typically 1 to 2 hours. An optional Preamplifier-Attenuator Unit, DXE-NL-PRE-ATT-1, may be attached to the loop mast handle for enhanced operations. Weighing less than 9 oz., the fully assembled unit includes easy-to-slide attenuation switches for -10 dB or -20 dB and -30 dB and an AM Broadcast Band Rejection Filter. The device provides a nominal 30 dB gain across the frequency range from 100 kHz through 30 MHz; runs on a 9V battery (not included). DXE-NOISELOOP Portable Receive Flag Antenna Kit .....................................$135.99 DXE-NL-PRE-ATT-1 NOISELOOP Portable Preamplifier-Attenuator .................$175.99 RXT Terminating Resistors Unified Microsystems continues to build top-quality high-performance parts for competitive Hams. Its RXT series terminating reisistors have been designed to work with the most popular types of low band receive antennas. The 2-watt, high-surge-tolerant resistors feature low inductance, a gas discharge tube for added electrical protection, a NEMA-rated case for handling the toughest conditions, stainless steel hardware and internally coated electronics. UMS-RXT-1000 Terminating Resistor, 1,000 Ohms ...................................................$21.99 UMS-RXT-470 Terminating Resistor, 470 Ohms ......................................................$21.99 UMS-RXT-270 Terminating Resistor, 270 Ohms ......................................................$21.99 BevFlex-4X Reversible Receive Antenna Systems Take advantage of Unified Microsystems’ versatile BevFlex-4X Reversible Receive Antenna System to enjoy the exceptional performance of a two-direction, low-noise, low-band receiving antenna that’s perfect for Hams facing property size limitations. The BevFlex-4X is the updated and improved version of W8GNM’s antenna design that uses low-cost, low-loss RG-6 coaxial cable for the elements and the feedline for a Reversible Elevated Beverage, Reversible Beverage-on-Ground (BOG), EWE, Flag or VE3DO loop antenna. The BevFlex-4X allows Hams to place and connect the feedpoint unit anywhere along the length of an Elevated Beverage or BOG antenna, rather than only at one end or the other. This flexibility allows an operator to position the feed at a more optimal location, such as closer to the shack. Operators can install two BevFlex-4X systems at right angles to cover all four quadrants of the compass. The antenna enables operators to instantly switch to the reverse direction regardless of the configuration. The system includes a feed unit, two terminator units, and a control switch unit. The new BevFlex-4X-Q combines two sets of terminator and feed units with the RAS-4 remote antenna switch to let you hear better in all four quadrants. UMS-BEVFLEX-4X BevFlex-4X Dual-Direction Reversible Receive Antenna System ..................................$349.99 UMS-BEVFLEX-4X-Q BevFlex-4X 4-Direction Reversible Receive Antenna System ..................................$649.95 UMS-RAS-4 Receive Antenna Switch for up to 4 Antennas ...................$124.95 UMS-BEVFLEX-4X Beverage Antenna Transformer The transformer’s output is a perfect match for low-loss 75 Ω RG-6 CATV coaxial cable, which keeps your overall receive antenna system cost down. Plus, it’s fully enclosed in a weathertight, plastic housing, making it a great option if you deploy your Beverage antenna year-round. The BT-75 also has a built-in gas discharge tube for protection against lighting strikes. Integrated flanges make it easy to mount, too. UMS-BT-75 Beverage Antenna Transformer ....$37.95 Vertical Antenna The DXE-AL24 Vertical Antenna includes ground-mounting plate, clamps, and wires to connect a receive-only element amplifier, such as the upgraded replacement DXE-AVA-3, or the legacy Hi-Z or DXE-AVA-2 models. This 24-foot telescoping aluminum tubing antenna is made to withstand the elements. DXE-AL24 Vertical Antenna for DXE and Hi-Z Receive Systems ......$415.99 Suggested Parts Sometimes Ham Radio gear requires special accessories like hookup cables and brackets to complete an installation. Visit DXEngineering.com and check out the “Suggested Parts” tab on certain products to see what you’ll need to get up and running. Our catalog is only the beginning! See thousands of products at DXEngineering.com
