-40%
4B100W Withstand 7-14-21-28MHz End-Fed HF Ham/Amateur Radio Shortwave Antenna
4B100W Withstand 7-14-21-28MHz End-Fed HF Ham/Amateur Radio Shortwave Antenna
4B100W Withstand 7-14-21-28MHz End-Fed HF Ham/Amateur Radio Shortwave Antenna
4B100W Withstand 7-14-21-28MHz End-Fed HF Ham/Amateur Radio Shortwave Antenna
4B100W Withstand 7-14-21-28MHz End-Fed HF Ham/Amateur Radio Shortwave Antenna
4B100W Withstand 7-14-21-28MHz End-Fed HF Ham/Amateur Radio Shortwave Antenna
4B100W Withstand 7-14-21-28MHz End-Fed HF Ham/Amateur Radio Shortwave Antenna
4B100W Withstand 7-14-21-28MHz End-Fed HF Ham/Amateur Radio Shortwave Antenna
4B100W Withstand 7-14-21-28MHz End-Fed HF Ham/Amateur Radio Shortwave Antenna
4B100W Withstand 7-14-21-28MHz End-Fed HF Ham/Amateur Radio Shortwave Antenna
4B100W Withstand 7-14-21-28MHz End-Fed HF Ham/Amateur Radio Shortwave Antenna

4B100W Withstand 7-14-21-28MHz End-Fed HF Ham/Amateur Radio Shortwave Antenna

$ 29.16

Availability: 11 in stock
  • Compatible Product: Base Station Radio
  • Refund will be given as: Money back or replacement (buyer's choice)
  • Model: Shortwave Antenna
  • Condition: New
  • Number of Inputs: 1
  • All returns accepted: Returns Accepted
  • Type: Antenna
  • Restocking Fee: No
  • Brand: Unbranded
  • Item must be returned within: 30 Days
  • Return shipping will be paid by: Buyer
  • Band: HF
  • Compatible Brand: Universal
  • Number of Outputs: 1

    Description

    Packing including:
    1Pcs 4B100W End-Fed Antenna Set
    Detail:
    Specifications:
    Color:As the picture
    Antenna model: 4B100W (meaning that 4-band; withstand power is 100W)
    Antenna configuration: 1 x end-fed balun; 2.5 square oscillator 20m/65.6ft
    20m/65.6ft outdoor drawstring, storage bag, without feeder which needs to be purchased separately
    Input power: SSB, CW mode 100W (PEP), FT8, AM.FM.SFK mode below 60W
    Note: Feeder line is not included, please purchase separately.
    How To Put Up The Antenna?
    The requirements for the erection of end-fed antenna are very low. It can work normally if it is more than 2 meters away from the ground. To achieve a desired effect, the antenna should be erected in a high and open place as much as possible. When the antenna is erected vertically, because of the low elevation angle, the communication distance is far, it is equivalent to an omnidirectional antenna now. When installed horizontally, due to the high elevation angle of the antenna, the communication distance is relatively short, and it also has a certain directivity. Refer to the figure below for specific erection methods.
    Antenna Adjustment:
    The antenna has been adjusted before delivery. If your feeder line and the installation environment may affect resonance points, it is recommended to perform a standing wave (resonance point) test when you set up the antenna. If the resonance point may be affected by your feeder cable or erection environment, use 7.05Mhz as the reference resonance point (that is, the lowest standing wave frequency point).
    This antenna uses the multiplier relationship of 4 bands to realize the principle that one oscillator resonates 4 frequency points at the same time, so the resonance points of its 4 bands are linked. Assuming that the resonance point is at 7.05M, the other bands are about 14.250, 21.350, and 29.00. To change the resonant frequency, just change the length of oscillator (the length of the antenna oscillator can be adjusted) without trimming. Or adjust according to your usual frequency without trimming.