Product not capable of emitting radio frequency energy..
Description:
Toroid model: NXO-100.
Toroid material: nickel zinc ferrite.
Toroid Magnetic conductivity: 100.
Toroid Overall dimensions: outer diameter 31 mm * height 7 mm * diameter 18 mm.
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Center frequency: 15 MHZ
Application frequency: 1-30 MHZ
Waterproof Case Size: 65mm * 60mm * 35mm
This kit uses a low-permeability nickel zinc NXO-100 high-frequency magnetic, high-quality wire, waterproof box package, stainless steel bolts, Q9 seat.

It production 1:1, 4:1, 9:1 the package using the the large size NXO-100 magnetic ring and 1 mm in diameter enameled wire.

It can work in the 1-30MHz shortwave, can withstand high power of 100W-200W, such as magnetic Barron's ideal kit.

Types of antennas: 1: 1, 1: 4, 1: 9 three production program antenna optional, 1: 1 and 1: 9 is three enameled hinge, 1: 4 is two enameled wire.

1: 9 balun suitable long-term antenna , with manual or automatic antenna tuner tune-day use.

1: 4 balun applicable LOOP antenna to antenna and Winton (200-400Ω).

1: 1 balun antenna suitable for bipolar DP (inverted V n V), such as Yagi antenna (40-100Ω).

Kits include 1.5m wire, please fold to 3 fold, each fold 0.5m.

1: 1 winding method: three-wire twisted around 7 laps, stranding extent (about 3-4 times per centimeter)

1: 4 Winding method: two-wire twisted around 8 laps, stranding extent (about 3-4 times per centimeter)

1: 9 Winding method: three-wire twisted around 10 laps, stranding extent (about 3-4 times per centimeter)

NOTE: It is bulk package, not a finished product, it need to DIY.
Pack: 1x radio balun kit