Radio Antennas Balance Amateur DIY HAM Equipment 1-30Mhz Shortwave Radio Balun Kits NXO-100 Magnetic

• HAM Equipment 1-30Mhz Balun Antennas Radio Balance Kits adopts large-size high-quality nickel-zinc magnetic ring, which can work in the short-wavelength range of 1-30MHz .This item needs to be assembled by the customer after purchase，please know.
• It can withstand 100W-200W. It can easily produce high-performance balun to ensure efficient radio transmission and reception. It allows you to fully enjoy the fun of DIY.
• 1:1 balun is suitable for bipolar DP antenna (inverted V positive V) antenna such as Yagi (40-100Ω). <BR> 1:4 balun for LOOP antenna and Winton antenna (200-400Ω).
• 1:9 balun is suitable for long-line antennas, with manual day adjustment or automatic day adjustment.
• You will receive the balun kits with the instructions.Or please contact the seller for the PDF instructions. Enjoy.Thx

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