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Introduction This manual covers both the DXE-RSEAV-1 and the DXE-RSEAV-1FVI. The DXE RSEAV-1FVI is exactly the same but comes with the DXE-FVI-1 DC Power Injector. Class leading performance makes the DXE-RSEAV-1 Receive Short Element Active Vertical Antennas the best choice on the market for VLF through HF reception, including long distance AM broadcast, Medium Wave and Shortwave (SWL), new low frequency Amateur bands, DXing, contesting and everyday HF operations.
Controller could allow the user to phase out the noise being received. Large transmit antennas are also very good source of re-radiated noise. A DXE-RSEAV-1 or the DXE-AVA-3 cannot be mounted on, or near, a mast or tower due to induced noise and potential RF overload.
DXE-RSEAV-1 – Single Active Antenna with no power source included; intended for use with devices that send +13.8 Vdc on the RF coaxial cable, such as DXE-RTR-2 or DXE-NCC-2. Also, this model is for those who will be using the Direct DC feature of the second F connector to power the DXE-AVA-3 with DC on a separate coaxial cable.
Every effort is made to supply the latest manual revision with each product. Occasionally a manual will be updated between the time your DX Engineering product is shipped and when you receive it. Please check the DX Engineering web site (www.DXEngineering.com) for the latest revision manual.
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RF Gain Selection - J1 The DXE-AVA-3 features internal jumper selection of relative gain settings, with the factory default of - 6dB, as well as 0dB and +6dB settings, to match the ambient noise conditions for the antenna location, and to adjust for the size of the antenna element to be used.
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Weep holes Assembly The assembly described is for a single DXE-RSEAV-1. Use JTL-12555 - Jet-Lube SS-30 on the joints between the antenna elements and on all stainless steel hardware threads to prevent galling and to ensure proper torque. NEVER use SS-30 or any anti-seize on RF coaxial connectors.
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Loosely install the two stainless steel U-Clamps on the black mounting plate using the U-Bolt, V- Clamp, Flat washers, Split Washers and Hex nuts as shown in Figure 2. Figure 2 Antenna and Antenna Mounting Plate Parts List Item Description Item Description Mounting Plate, Black...
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NOTE: The parts list (above) and drawing only show the parts for the 3-piece antenna and antenna mounting plate. Other parts in this kit include the AVA-3 unit, mounting hardware, two ground rod mast mounting clamps and one ground clamp with tab which are described in the following assembly.
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Place a flat washer and a spacer on each of the hex head bolts. The bottom antenna element has larger holes on one side, these larger holes face the spacers. The bottom antenna element is installed so the spacers are inside of the element. Refer to Figures 3 &...
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improves RF grounding because skin effect in the soil prevents current from flowing deep in the soil. Avoid ground rods less than 1/2" in diameter. Install the DXE SSVC-1PG on the ground rod approximately 9-1/2” from the top of the ground rod as shown in Figure 9.
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Providing a Good RF Ground This Active Vertical Antenna works well with just a single copper ground rod used as the mounting rod. You can test the quality of the ground when using only one ground rod. Tune in an AM or low band steady signal that is not Skywave and note the signal level.
Depending upon a few variables, including the frequency of the measured signal, your DXE-RSEAV-1 Active Receive Vertical is probably operating normally. The DXE-RSEAV-1 is designed to be a very low to no gain, low noise system for greatly improved signal- to-noise performance over a very wide range of frequencies.
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Injector unit should be providing approximately 12 to 14 Vdc, and the Active Matching Unit requires at least +11.5 Vdc or more for proper function. Bench tests on the DXE-RSEAV-1 and AVA-3 are normally about 25 mA, so with some voltage drop on the line, 40 to 50 mA should be okay. If the measured voltage at the end of the line is under +11 Vdc, then there may be a resistive connection along the feedline.
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without losing the signal-to-noise benefits of the no-gain Active Receive Vertical antenna. Only the DXE- RPA-2 operates with a third order intercept and dynamic range that is far superior to most receiver front- ends. Simultaneous use of the external preamplifier as well as using receiver internal attenuation and/or RF Gain reduction along with AF Gain increase can provide substantially improved signal readability.
Warranty All products manufactured by DX Engineering are warranted to be free from defects in material and workmanship for a period of one (1) year from date of shipment. DX Engineering’s sole obligation under these warranties shall be to issue credit, repair or replace any item or part thereof which is proved to be other than as warranted;...
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