50 04AT Remote Automatic Antenna Tuner Powered and controlled by ACOM’s solid state HF+6M amplifiers, this antenna tuner delivers automatic and manual tuning to ensure the proper impedance match between radio and amplifier. Full tuning is completely automatic, and tuning patterns can be stored in its nonvolatile memory (or transferred to a PC for future use). Tuner information is displayed on the amplifier’s screen for easy use. It has built-in voltage, power, and hot-switching protection, and the unit can be mounted indoors or outdoors. AOM-04AT Remote Automatic Antenna Tuner ...................................$1,499.99 06AT Automatic Antenna Tuner Made to work exclusively with Acom 500S, 600S, 700S, 1200S and 2020S solid-state amplifiers, the 06AT provides continuous coverage from 1.8-30 MHz and 50-54 MHz along with advanced amp/transceiver protection features and two operating modes: 100% automated Full Tuning or Fast Tuning that retrieves previous tuning results. The tuner employs a built-in four-port antenna switch that automatically matches the impedance of the operator-chosen antenna output by transforming it to 50 Ω with SWR below 1.5 at the tuner input (typically below 1.3), providing an optimum load impedance for the amplifier. Operators can select among several antenna profiles based on the bandwidth of the connected antenna (narrow, normal, broadband, etc.). Power and control functions come directly from a connected Acom amp. Fully automated operation requires a CAT, COM or CI-V frequency reading interface cable between the transceiver and amplifier. Enter “06AT” at DXEngineering.com for more details. AOM-06AT Automatic Antenna Tuner ................................................. $1,599.99 Assembled 50 Ω Choke Balun Choke baluns ensure that RF does not flow on the outside shield of feedlines, phasing lines, etc. This COMTEK balun consists of 75 heavy-duty mix-31 RF choke beads on a length of RG400 PTFE coax terminated with silver-plated PTFE PL-259/UHF male connectors. The balun comes assembled except for the provided correct length of heat-shrink tubing, which needs to be installed. The choke provides excellent common mode impedance and handles up to 5 kW from 1.8 to 54 MHz. COM-CFC-50A 50 Ω Choke Balun, Assembled . ...........................................$131.49 Accessories DXE-RADP-3 Stainless Steel Radial Plate with 20 Bolt Sets .......................$99.99 DXE-SSVC-2P V-Saddle Clamp, Fits 1" to 2" Tube........................................$19.49 High Impedance Common Mode RF Choke Kit This 40-toroid, Mix-31 solid ferrite bead choke kit provides the simplest and most eff ective technique of creating RF isolation at an antenna feedpoint or feedline termination. Covering 1.8-54 MHz, these beads—installed on a user-supplied coaxial cable prior to connector installation—provide high common mode impedance resulting in received noise reduction, reduced RF on the shield, better antenna performance, elimination of phasing errors and erroneous meter readings, the best 1:1 balun, and other benefits for applications including Yagis, dipoles, verticals, and phased array element feedpoints. The DXE-FBC kit's 0.500" I.D. ferrite beads come with 48" long heat shrink tubing to secure them in place. Simply slide the beads over any standard 0.405" coaxial cable and use a heat gun or hair dryer to secure them for long-lasting weather protection. DXE-FBC Choke Kit, 40 Beads, 1.8-54 MHz ........................................$152.99 Color-Coded Ferrite RF Noise Reduction Kits There’s nothing more frustrating than searching through a box of unmarked ferrite toroids and beads, unsure of which ones are right for your application. The problem: They all look the same, but they’re made from diff erent mixes of ferrite, a ceramic made from oxides of magnetic metals. DX Engineering has selected mixes designed to block and dissipate RF currents, a technique that is proven to suppress radio frequency interference (RFI). Each mix works best over a certain frequency range. By color-coding our ferrite products, you can tell a toroid made from 31-mix from one made with 77-mix at a glance, taking the guesswork out of finding the right piece to place on your feedlines. Parts are color-coded as follows: • 31-Mix, Blue – 1 MHz to 300 MHz • 61-Mix, Red – 200 MHz to 2 GHz • 43-Mix, Silver – 25 MHz to 300 MHz • 75-Mix, Green – 150 KHz to 30 MHz • 52-Mix, Orange – 200 MHz to 1 GHz • 77-Mix, Pink – 100 KHz to 50 MHz DXE-ACDCGEN1-RFI For AC/DC Generator, Two 3" I.D. Toroids, Mix 31 .............$99.99 DXE-ACDCGEN2-RFI For AC/DC Generator, Two 1" I.D. Snap-On, Mix 31 ..........$52.99 DXE-AM-RFI For AM Broadcast, 5 Toroids, 8 Snap-On, Mix 77 ............$109.99 DXE-CSB31-10-1 One 1" I.D. Snap-On Bead, Mix 31 ......................................$34.99 DXE-CSB31-275-10 Ten .275" I.D. Snap-On Beads, Mix 31 ................................$34.99 DXE-CSB31-525-5 Five 0.5" I.D. Snap-On Beads, Mix 31 .................................$34.99 DXE-CSB31-750-5 Five .75" I.D. Snap-On Beads, Mix 31 .................................$36.99 DXE-CSB31-COMBO 4 Small, 2 Med., 2 Large Snap-On Beads, Mix 31 ..............$41.99 DXE-CSB61-COMBO 20 Snap-On Bead Pack, Mix 61 .........................................$106.99 DXE-CSB75-375 One .375" I.D. Snap-On Bead, Mix 75 .................................$27.99 DXE-CSB75-750-2 Two Large .75" I.D. Snap-On Beads, Mix 75 ......................$48.99 DXE-LA1-RFI For Linear Amplifier, 1 Toroid, 2 Snap-On, Mix 31 ............$68.99 DXE-LA2-RFI For Linear Amplifier, 1 Toroid, 3 Snap-On, Mix 31 ............$83.99 DXE-LA3-RFI For Linear Amplifier, 1 Toroid, 4 Snap-On, Mix 31 ............$72.99 DXE-TC31-24-4 Four 1.4" I.D. Toroids, Mix 31 ..............................................$62.99 DXE-TC31-40-1 One 3" I.D. Toroid, Mix 31 ...................................................$61.99 DXE-TC43-14-10 Ten .90" I.D. Toroids, Mix 43 ...............................................$51.99 DXE-TC43-24-4 Four 1.4" I.D. Toroids, Mix 43 ..............................................$63.99 DXE-TC43-82-25 25 .52" I.D. Toroids, Mix 43..................................................$61.99 DXE-TC52-14-4 Four .9" I.D. Toroids, Mix 52 ................................................$43.99 DXE-TC52-24-2 Two 1.4" I.D. Toroids, Mix 52 ..............................................$44.99 DXE-TC61-24-2 Two 1.4" I.D. Toroids, Mix 61 ..............................................$60.99 DXE-TC75-24-2 Two 1.4" I.D. Toroids, Mix 75 ..............................................$47.49 DXE-TC77-14-8 Eight .90" I.D. Toroids, Mix 77 .............................................$45.99 DXE-TC77-24-2 Two 1.4" I.D. Toroids, Mix 77 ..............................................$45.99 DXE-TC77-82-20 20 .52" I.D. Toroids, Mix 77..................................................$47.99 DXE-TC-COMBO Ten 2.4" O.D. Toroids, Mixes 31/61/77 .............................$116.99 DXE-XCVR1-RFI For HF Base Station, 2 Toroids, 3 Snap-On, Mix 31 ...........$49.99 DXE-LA1-RFI DXE-XCVR1-RFI Tuner Genius XL Antenna Tuners Smartly engineered and built with high-quality components, both tuners from FlexRadio provide coverage of 1.8-54 MHz up to 2000W SSB/CW with an impressive tuning range up to 10:1 SWR at reduced power. All functions can be controlled at the front panel's 4.5" color touchscreen display or remotely via LAN and a Windows soft ware application. High- precision “peak responding” RF power and SWR meter displays eliminate the need for a separate meter in your shack. The tuners are made to interface with any HF transceiver, but are specially designed to complement FlexRadio 6000 Series transceivers and the Power Genius XL Amplifier. In the TGXLSO2R version, users gain full use SO2R (single operator/two radio) operation, including support of multiFLEX™ operation, when the tuner is used with FlexRadio 6600 or 6700 transceivers. The SO2R model includes two inputs and two outputs (each input is paired with one output). Non-matrix SO2R switching is manual or automatic by frequency. The TGXL-1X3 model includes one input and three outputs, making it a great choice when multiple antennas are involved. Other features of the Genius XL Antenna Tuners include manual or fully automatic tuning operations, seamless SmartSDR™ soft ware integration, up to 10:1 SWR matching range, and quick tuning times. FRI-TGXL-1X3 Antenna Tuner, 1 Input/3 Antenna Outputs ...................$2,199.00 FRI-TGXLSO2R Antenna Tuner, 2 Input/2 Antenna Outputs for SO2R ...$2,499.00 Automatic Antenna Tuner and Switch for ACOM 2020S Amplifier Optimized and specifically designed for use with the ACOM 2020S solid-state amplifier, this tuner for HF+6 includes an integrated four-way antenna switch. The tuner automatically selects one of four available antenna outputs (assignable to specific bands by the operator) and matches the impedance of the chosen antenna feedline to 50 Ω with SWR below 1.5:1 at the tuner input (typically below 1.3). For CAT transceivers, a single press of the amplifier's TUNE button is all you need to establish user-tuning presets. The 20AT can be located up to 330 feet away from the shack (indoors), saving you operating space. Also take advantage of improved harmonic suppression via a low-pass L filter; tuning in under five seconds and less than 0.05 seconds for non-volatile memory presets; automatic or manual switching options; bypass mode that allows direct operation of broadband antennas; advanced protection for overvoltage, overcurrent, and excessive power; integrated lightning arrestor and bleeder resistor for static discharge protection; and many more features. Enter "20AT" at DXEngineering.com for more details. AOM-20AT Antenna Tuner for ACOM 2020S Amplifier .....................$1,799.99 FRI-TGXL-1X3 Antenna Tuners & RF Chokes Orders over $99 qualify for FREE standard shipping—see pg. 70 for details.