107 WARNING: For Proposition 65 information, see p. 3 Receiving & Lightning Protection 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 lightning strikes. Integrated flanges make it easy to mount, too. UMS-BT-75 Beverage Antenna Transformer .... $37.95 Antenna Splitter Amplifiers The ASA-15 Antenna Splitter Amplifier distributes the signal of one receiving antenna to up to five receivers. Each of the five outputs has an individually selectable wideband amplifier with 12 dB gain. A 15 dB attenuator is integrated in the input to reduce strong signals. The internal distribution is done with low-noise amplifiers, which isolate outputs and receivers from each other. A power supply (12VDC/1A) is included. The ASA-16 Antenna Splitter Amplifier makes one antenna shareable with up to six independent receivers. When its PTT input is engaged, all receivers are isolated by more than 60 dB (at 12 MHz) from the input. The ASA-62 Antenna Splitter Amplifier allows you to distribute up to six 9kHz-70MHz antenna signals to up to two receivers. Each input is buffered by a low-noise amplifier (AD8099) so that the signals cannot influence each other. Front-panel pushbuttons provide simple operation. The ASA-62 can also be operated remotely. A power supply cable is included. Enter "ELAD Splitter" at DXEngineering.com for more details. ELD-PF-ASA15 Splitter Amplifier, 1 Antenna Signal to 5 Receivers ........... $327.99 ELD-PF-ASA16 Splitter Amplifier, 1 Antenna Signal to 6 Receivers ........... $305.99 ELD-PF-ASA62 Splitter Amplifier, 6 Antenna Signals to 2 Receivers ......... $309.99 Coaxial Cable Surge Protectors From CITEL, a company that has been keeping the world's critical networks and equipment protected since 1973, comes this selection of DC pass and DC block coaxial cable surge protectors engineered to provide robust protection against overvoltage transients. The devices use advanced gas discharge tubes (GDT) to effectively dissipate high-energy surges. Featuring waterproof housing for long-lasting reliability and replaceable GDTs, CITEL cable surge protectors offer low insertion loss and high surge-handling capacity for amateur radio stations as well as commercial and industrial environments. Discover exceptional protection for VHF, UHF, SHF radios, and SDR receivers. CIL-611812 UHF Female, Bulkhead Mount, DC Pass, Up to 2.5 GHz, 770W Max Power ............................$59.99 CIL-60211 Type-F Female, Bulkhead Mount, DC Pass, Up to 2 GHz, 15W Max Power ................................................$64.99 CIL-6116721 UHF Female, Bulkhead Mount, DC Pass, Up to 2.5 GHz, 25W Max Power .............................................$66.99 CIL-6000150 Type-N Female, Bulkhead Mount, DC Pass, Up to 3.5 GHz, 25W Max Power .............................................$75.99 CIL-60017 Type-N Female, Bulkhead Mount, DC Pass, Up to 4 GHz, 780W Max Power ..............................................$76.99 CIL-CXP25-NFFDCB Type-N Female, Bracket Mount, DC Block, 125-1GHz, 190W Max Power ..................................................$89.99 CIL-60007 Type-N Male/Female, Bulkhead Mount, DC Pass, 3.5 GHz, 780W Max Power ......................................$94.99 CIL-60001 Type-N Male/Female, Bulkhead Mount, DC Pass, 3.5 GHz, 25W Max Power ........................................$94.99 Receive Feedline Surge Protector This unique in-line design is impedance matched to 75 Ω and virtually transparent to both analog and bi-directional signals from DC to 1.0 GHz. The patented and proprietary gas tube construction has an integral failshort mechanism for a power-cross condition that shunts both your cable’s center conductor and sheath for a common path to ground. The protection element resets after each over-voltage incident. DXE-RLP-75FF Receive Feedline Surge Protector, 75 Ω, DC Pass, F Connectors ................................................. $29.99 Broadband Coaxial Lightning Protectors These 50 Ω, DC-blocked protectors are great for general, single transmitter use in the 1.5 to 700 MHz frequency ranges. Available with either a bulkhead or flange mount, Polyphaser’s Lightning Protectors use a gas tube design that has no DC continuity between the center pins. Polyphaser’s Multi-Strike products pass all RF frequencies while blocking all DC—offering excellent protection from voltage spikes. PPR-IS-50UX-C0 UHF Female, Flange, 2,000 W, 1.5-700 MHz ...................... $105.99 PPR-IS-50NX-C0 Type N Female, Flange, 2,000 W, 1.5-700 MHz .....................$99.99 PPR-IS-B50LN-C0 Type N Female, Bulkhead, 2,000 W, 1.5-700 MHz ............. $109.99 PPR-IS-B50LU-C0 UHF Female, Bulkhead, 2,000 W, 1.5-700 MHz ................. $131.99 PPR-IS-B50HU-C0 UHF Female, Bulkhead, 3,000 W, 1.5-700 MHz ................. $161.99 X One Active Dipole Receive Antenna Built for durability and ease of installation, the X One is precision- engineered for wideband coverage from 9 kHz-150 MHz. The 31.5" antenna features high immunity to nonlinear distortion, delivering clean and accurate signal reception under challenging conditions. Common-mode rejection of up to 60 MHz minimizes interference, while an integrated FM lock, configurable via internal jumpers, enhances selectability when needed. It's suitable for mounting onto masts with diameters between 1.57"-2.4". The antenna comes with Type-N connector and Type-N to BNC adapter. Operates on 12-14VDC. KOC-STAM-X-ONE X One Active Dipole Receive Antenna ...............................$704.93 Enter “KOC” at DXEngineering.com for more details. 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 Wave Block Preselector This RF filtering solution for 0-30 MHz is designed to optimize receiver performance and protect sensitive front-end circuitry. Positioned between the antenna and receiver/transceiver, it's ideal for SDRs and wideband HF receivers. The preselector employs eight switchable bypass ranges to attenuate out-of-band signals, mitigating overload from strong sources such as AM broadcast stations. Key benefits include low insertion loss (1 dB), high dynamic range (IM3 ≈ 50 dBm), ripple control within ±0.5 dB, intuitive TFT display, and sturdy aluminum enclosure. Enter “KOC” at DXEngineering.com for more details. KOC-STMWAVEBLOCK Wave Block Preselector ...........................................$1,107.44 Our catalog is only the beginning! See thousands of products at DXEngineering.com
