Buy ALPHA DELTA DX-40 40M Mono-band Full Size Dipole Antenna, Rated up to 2000 Watts in United States - Cartnear.com
ALPHA DELTA DX-40 40M Mono-band Full Size Dipole Antenna, Rated up to 2000 Watts
CTNR1421680 CTNR1421680Alpha Delta
2025-05-05
/itm/alpha-delta-dx-40-40m-mono-band-full-size-dipole-antenna-rated-up-to-2000-watts-1421680
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91.48
$ 91.48 $ 92.40
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DX-40-- 7.0 -30 MHz (Length 67’)
The system consists of an assembled dipole antenna which is pre-tuned for the lowest indicated frequency and 40 ft. of mounting rope. The antenna is constructed using Alpha Delta's exclusive Model Delta-C center insulator and Model CIN end insulators which are molded of Deltalloy™, an extremely tough and durable plastic specifically blended to withdstand sunlight and extreme weather conditions. The use of stainless steel hardware and heavy 12 gauge PVC coated solid copper wire assures that the DX-Dipoles will tolerate the harshest environments. Also, the Delta-C center insulator contains the Model SEP static electricity protector which continuously discharges potentially hazardous static charges which can be produced by wind, rain, snow, sand and other natural phenomenon.
The Model SEP cartridge is field replaceable, but should last for many years under typical conditions.
The DX-Dipoles can be used as very effective multi-band antennas for all frequencies higher than the pre-tuned frequency when used in conjunction with an antenna matching unit (antenna tuner) with balanced output and fed with open-wire feeders or low loss feedline (not coax). The open wire feeders or ladder line is connected directly to the #10 stainless steel bolts on the Delta-C center insulator using the wingnuts and washers provided.
Important: When operating the dipolesin a multi-band configuration, it will be necessary to remove the SEP Cartridge due to the high voltage present at the antenna feed point.
Note: When using the DX-dipoles for receiving only, it is not necessary to remove the Model SEP Cartridge regardless of the frequency of operation.
SEP Failure: The Model SEP cartridge should last many years under normal circumstances, but the cumulative effect of thousands of discharges or a very strong surge can destroy the device. The SEP is designed to “fail-safe” in a shorted condition and this will be apparent due to an increase in SWR during transmit and/or a severe reduction in received signal strength.
The system consists of an assembled dipole antenna which is pre-tuned for the lowest indicated frequency and 40 ft. of mounting rope. The antenna is constructed using Alpha Delta's exclusive Model Delta-C center insulator and Model CIN end insulators which are molded of Deltalloy™, an extremely tough and durable plastic specifically blended to withdstand sunlight and extreme weather conditions. The use of stainless steel hardware and heavy 12 gauge PVC coated solid copper wire assures that the DX-Dipoles will tolerate the harshest environments. Also, the Delta-C center insulator contains the Model SEP static electricity protector which continuously discharges potentially hazardous static charges which can be produced by wind, rain, snow, sand and other natural phenomenon.
The Model SEP cartridge is field replaceable, but should last for many years under typical conditions.
The DX-Dipoles can be used as very effective multi-band antennas for all frequencies higher than the pre-tuned frequency when used in conjunction with an antenna matching unit (antenna tuner) with balanced output and fed with open-wire feeders or low loss feedline (not coax). The open wire feeders or ladder line is connected directly to the #10 stainless steel bolts on the Delta-C center insulator using the wingnuts and washers provided.
Important: When operating the dipolesin a multi-band configuration, it will be necessary to remove the SEP Cartridge due to the high voltage present at the antenna feed point.
Note: When using the DX-dipoles for receiving only, it is not necessary to remove the Model SEP Cartridge regardless of the frequency of operation.
SEP Failure: The Model SEP cartridge should last many years under normal circumstances, but the cumulative effect of thousands of discharges or a very strong surge can destroy the device. The SEP is designed to “fail-safe” in a shorted condition and this will be apparent due to an increase in SWR during transmit and/or a severe reduction in received signal strength.
