Radio Antenna Balun QRP Tuner Amateur DIY kit NXO-100 HAM HF Band

Fully enjoy the fun of DIY .Small, field erection gantry can be fixed, portable, waterproof.
This suite is not welded, delivery is scattered electronic components, the store display of the finished picture, only Purchase reference.
Circular models: NXO-100
Circular material: nickel zinc ferrite
Magnetic conductivity: 100
Overall dimensions: outer diameter 31 mm * height 7 mm * diameter 18 mm
Center frequency: 15 MHZ
Application frequency: 1-30 MHZ
Waterproof Case Size: 65mm * 60mm * 35mm
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).
The 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: After stranding, first put heat shrinkable sleeve, and then pass on the ring!
Enameled two leaving enough length, a good number of laps around a specified, will be evenly distributed on the magnetic coil, and then start welding enameled wire header and tail .
Package Included: 1x 1-30Mhz shortwave radio balun kit