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Yaesu G-2800DXA Extra Heavy-Duty Rotator Systems
Yaesu G-2800DXA Extra Heavy-Duty Rotator Systems are azimuth positioners designed to rotate large tower-mounted amateur and professional antenna arrays under remote control from the station's operating position. These systems feature attractive compass-dial position indication controllers, with a connector port for optional computer interface for automated directional antenna positioning control. Yaesu's G-2800DXA rotator design utilizes 98 heavy 3/8 in. dual-stacked circumferential ball bearings to distribute load over the full diameter of the housing. This design minimizes stress and wear and practically eliminates the possibility of destructive water entry: There is no shaft hole in the top of the housing. Instead of the usual AC motor drive used in older rotator designs, the G-2800DXA, G-1000DXA and G-800DXA use a variable-voltage DC motor, removing the need for a large starting capacitor with its potential for failure exposed to outside temperature variations. The factory-lubricated rotator unit is housed in melamine resin-coated die-cast aluminum, intended to provide maintenance-free operation under all climatic conditions. A mast alignment gauge on the rotator housing simplifies accurate mechanical alignment during installation. Tower mounted, this model handles over 30 sq. ft. of antenna wind load and over 650 lbs. of vertical mast load. About 130 ft. of control cable is included with the G-2800DXA only. Control console power is 110/120 volts AC. The handsome desktop controller provides 360 degrees radial indication of actual antenna azimuth bearing. You can select rotation time over 360 degrees from 50 to 120 seconds on the G-2800DXA, and preset a desired heading for the rotator, to which it then turns automatically. When a fast rotation speed is selected, special "auto slow-start" and "auto slow-stop" features avoid sharp jolts to the antenna array and tower. Activating the rotator causes it to begin turning at slow, but increasing, speed. As the antenna approaches the desired heading, the rotation automatically slows down, before bringing the antenna to a gentle stop. The operator may select the stop heading, the compass bearing through which the rotator cannot be turned, which is most convenient for their station location and operation, allowing full rotation through north, south or both, if desired. In any case, 90 degrees overlapping rotation allows rotation through the selected stop heading for 450 degrees of total rotation. These rotators are intended for mounting to an accessory shelf inside a support tower (not supplied), at least 1-meter (40 in.) below the top of the tower. Yaesu rotators have a fine reputation within the Amateur Radio community. When installing a new tower, or replacing an old rotator, consider purchasing a Yaesu G-2800DXA Extra Heavy-Duty Rotator System from DX Engineering.
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$1,769.99
DX Engineering Skylark Dual-Band Yagi Antennas
DX Engineering Skylark™ Dual-Band Yagi Antennas cover 17 and 12 meters and have no moving parts, support instant band changes, have no UV challenges, and no antenna-related lightning issues! Skylark™ antennas require no tuning and offer an SWR of less than 1.3:1 over the entire width of both bands. DX Engineering's Skylark™ utilizes aluminum and stainless steel construction, operate from a single feed line, and have a 90 mph wind survival rating. At only 38 lbs., Skylark™ antennas are light enough to be easily installed. These antennas are supplied complete with all mounting hardware for a 2 in. mast. Their stainless steel U-bolts and unique boom to mast mounting system make for very easy installation. Check these DX Engineering Skylark™ features: * Gain on 17 meters: 7.95 dBi * Gain on 12 meters: 7.75 dBi * Front to back on 17 meters: 21 dB * Front to back on 12 meters: 24 dB * 16 ft. boom * Wind loading: 6.5 square feet * Longest element is 27 ft., 8 in. * Turning radius is 16 ft. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. These Skylark™ antennas are a perfect match for stacking with any classic tri-bander. Your tri-bander would support 20, 15, and 10 meters, while the Skylark™ adds 17 and 12 meters. They are also a perfect companion for DX Engineering Skyhawk™ Tri-Band Yagi Antennas. Whatever antenna your tower currently supports, one of these DX Engineering Skylark™ Dual-Band Yagis from DX Engineering will be a worthwhile addition to your antenna farm!
Not Yet Reviewed
$1,999.98
Hamplus Antenna Control Switching Devices
Hamplus Antenna Control Switching Devices include automatic band data controlled remote antenna switching systems including full web remote capability without a PC. Hamplus automates HF + 50 MHz switching for 8 to 16 antennas and from 2 to 8 radios, including devices to connect multiple directional controllers to as many as 8 different antenna rotators. Band-data and frequency reading, multi-function control consoles include support for all major brand transceivers with radio specific control cables. Hamplus also offers manual multi-port to multi-radio antenna switches and a four-stack antenna switching system. Years of Amateur Radio and professional experience shows in these components for emerging and elite DXers as well as established multi-radio contest stations. Hamplus products will improve the function and performance of your station. Click on each part number for specific descriptions, specifications, more information and links to compatible or required products.
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$1,542.74
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$1,688.99