Quick, Easy & Affordable Antennas and RFI Solutions for everybody!
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OVER 10,000 Installed worldwide!
BULLET End Fed Antennas
Shorter, safer, more bands in less space than EFHW
Traditional dipole style but cut for more bands then other vendors!
End Fed OCF
160-6M, 80-6M, 40-6M or 20-6M but only 2 supports, shorter than EFHW - popular with POTA ops
Quieter on receive and multi-directional gain on higher bands, no need to rotate!
ZS6BKW Multi-band Ladder Line Fed
No tune on 5 bands!
Broadband Terminated Dipoles (BBTD, T2FD)
DIY Parts for ALE, MARS, Hi duty cycle data modes
Noise Filters - Coax, AC/DC Power 100 KHz - 150 MHz, up to -48 dB noise suppression - hear DX again!
Baluns & Ununs (1:1-81:1 ratios) for RX, 100/500/1500/5000 Watts including Hybrids (with choke) and Multi-Ratio
RFI Solutions - Consumer Electronics, Ham Radio, Computer, Audio/Home Theater, Wall Warts, Solar and more!
Ferrite Products- Rings, Snap On, Slip On, useful from 150KHz - 2 GHZ, Mixes 31, 43, 52, 61, 75, 77
Radio Transceiver/Linear Amplifier RFI Kits - All Brands, VLF to UHF, QRP to Multi-KW
FREE USPS Ground SHIPPING to USA Destinations for orders over $100!
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AM broadcast transmits on a low frequency with large antennas. Consequently it takes a large antenna to receive the signals. Typical “antennas” are AC house wiring, phone lines, long satellite or cable TV cables, DSL/CAT5 lines running between rooms, etc. The device wires that connect to these “antennas” need to be choked with as many turns through the ferrite as possible. Some installation examples are shown below on this page.
For AC/ DC power cords and coax cables the F240-77 (2.4″ OD, 1.4″ ID) “Donut” toroid is the most popular. Also available are smaller toroid donuts and Mix 77 beads. Shown below is a graph with 8, 10, and 12 turns through the toroid – obviously more turns has higher choking impedance. Mix 77 toroid products are HERE and Mix 77 small beads (for small wires) are HERE
Shown below is a graph of frequency response verses choking magnitude for a F240-77 in the AM Broadcast band for a 12 turn coil around the toroid. (Same info as above but different frequency range).
Typical Installations for Donut/Ring Toroids
Extra Mix 75 Snap On Beads HERE – VERY effective for AM Broadcast RFI





































