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Worked great for reducing common mode current and resulting RFI on the feedline for my end fed antenna to my amateur radio transceiver. Where before, the RFI would cause loud noise from my computer speakers while transmitting, after looping my coax through the torroid a few times effectively eliminated the effects.
Verified purchase: Yes | Condition: New
If you are 'into' amateur radio. 11 - 13 coax turns wound on the toroid makes an excellent line choke. Suppress common mode currents on your coax.
Verified purchase: Yes | Condition: New
Toroid Core FT240-31 Ferrite that I bought is category 31 , a highly suitable toroid for making CHOKEs for Ham Radio Communications Antenna system. I highly recommend this Toroid Ferrite Core for any one who makes Chokes and or Baluns. Thanks.
Verified purchase: Yes | Condition: New
Great for rg8x or rg58 choke on hf frequency.also if put on power cords of noise devices.great product.put 8 turns or more of coax under my 80 meter ocf dipole.had voltage balun as 4:1 and then Toto is core as choke much quieter receive.
Verified purchase: Yes | Condition: New
This is a ring of iron filings. The mix of ferrite creates a frequency selective transformer core. Will work on transmission, being careful not to overheat.
Verified purchase: Yes | Condition: New
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