Uploaded August 2026 | Updated September 2026, 5 days ago

---

When it comes to shortened HF antennas, coil diameter can make a big difference. A larger coil can provide greater inductance per turn, allow wider spacing between turns, reduce some losses, and potentially improve power handling. In this video, I compare a 2-inch diameter coil to a much smaller 5/8-inch coil to see why bigger coils can offer advantages—and when a smaller, more compact coil might still be the better choice for your antenna.
For Coffee and Ham Radios Antennas (CaHR) Email us at, coffeeandhamradios@gmail.com


#HamRadio #AmateurRadio #HamRadioAntenna #AntennaCoil #HF #ShortenedAntenna