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50:200 ohm (4:1) Balun or Unun Core Kit, 1.8-31 MHz, 250 watts PEP/OFF CENTER..
50:200 ohm (4:1) Balun or Unun Core Kit, 1.8-31 MHz, 250 watts PEP/OFF CENTER..
50:200 ohm (4:1) Balun or Unun Core Kit, 1.8-31 MHz, 250 watts PEP/OFF CENTER..
50:200 ohm (4:1) Balun or Unun Core Kit, 1.8-31 MHz, 250 watts PEP/OFF CENTER..
50:200 ohm (4:1) Balun or Unun Core Kit, 1.8-31 MHz, 250 watts PEP/OFF CENTER..
50:200 ohm (4:1) Balun or Unun Core Kit, 1.8-31 MHz, 250 watts PEP/OFF CENTER..

50:200 ohm (4:1) Balun or Unun Core Kit, 1.8-31 MHz, 250 watts PEP/OFF CENTER..

$ 21.11

Availability: 19 in stock
  • MPN: BA-9-250
  • Brand: DipolesUSA.com
  • Item must be returned within: 30 Days
  • All returns accepted: Returns Accepted
  • Type: Balun
  • Restocking Fee: No
  • Refund will be given as: Money Back
  • Condition: New
  • Model: BA250
  • Return shipping will be paid by: Buyer

    Description

    You will receive
    1 @ 50:200ohm (4:1) Balun or Unun Core Kit, 1.8-30 MHz, 250 watts PEP, end fed, T2F.
    3 @ Zinc coated Eye Bolts with nuts AND HEX LOCK NUT
    2 @ Crimp type eye hole connector
    1@ 1 1/2” PVC PIPE ( approximately 5”)
    1 @ 1 1/2” PVC CAP ROUND (TOP) three predrilled holes for eyebolt.
    1 @ 1 1/2” PVC CAP FLAT (BOTTOM) one predrilled hole for SO239
    SEE PICTURES WITH THIS LISTING
    Condition is New. IN STOCK Shipped FAST.
    Input ohms/Output ohms: 50 in, 200 out
    Frequency Range < 2:1 SWR (MHz): 1-31
    PEP Power Rating (watts): 250
    Model BA-4-250 is a 4:1 voltage balun/Unun kit used to translate a 50 ohm input up to 200 ohms at power levels up to 250 watts when used with a matched load. With a matched load the SWR will not exceed 2:1 over the frequency range 1.8 to 30 MHz.
    The kit consists of a 1.4" diameter ferrite core, two colors of insulated wire. a UHF connector with stainless steel hardware, and an instruction manual with directions to connect the kit as a 4 to 1 balun (balanced coax to balanced antenna like zepp or from 450 ohm feeder line to coax for a tuner) or 4 to 1 unun (unbalanced coax to unbalanced antenna like end fed or random wire).
    This balun will also transform at 4:1 for a wide variation of load impedances. Shown below are AIM 4170 SWR results for a 200 ohm load. This balun gives near perfect transformation through 30 Mhz with a SWR under 1.25 . Light blue vertical bars are ham bands starting at 160 meters at left to 10 meters at right.