1: 1 100W Balun DIY for Bipolar DP Antenna/Inverted V Positive V/Yagi etc.

Description: 1: 1 100W Balun DIY for Bipolar DP Antenna/Inverted V Positive V/Yagi etc. Description Baron Kit Instruction Manual V2 Balun is the English translation of balanced unbalanced converter, the principle is according to the antenna theory, dipole antenna is a balanced antenna, and the coaxial cable is an unbalanced transmission line, if it is directly connected, then the coaxial cable has a high-frequency current flow through the outer skin (according to the principle of coaxial cable transmission, high-frequency currents should flow in the internal flow of the cable, the outer skin is a shielding layer, there is no current), so that the antenna will affect the antenna's radiation (can be imagine that the shielding layer of the cable is also involved in the radiation of electric waves). Therefore, it is necessary to add a balanced unbalanced converter between the antenna and the cable to choke off the current flowing into the outside of the cable's shield, that is to say, to truncate the high-frequency current flowing from the oscillator through the outer skin of the cable's shield. The 1:1 balun is suitable for bipolar DP antennas (inverted V positive V) yagi and other antennas (40-100Ω). 1:4 Balun is suitable for LOOP antennas and Winton antennas (200-400Ω). 1:9 Balun is suitable for long wire antennas, used with manual antenna adjustment or automatic antenna adjustment. This kit adopts large-size high-quality nickel-zinc magnetic ring, working in the 1-30MHz short-wave band, can withstand 100W-200W high power, can be very convenient to produce a high-performance balun, to ensure high efficiency radio transceiver communications, but also allows you to fully enjoy the fun of DIY. Selection of the impedance ratio of the balun Depending on the type of antenna, there are three types: 1:1, 1:4, and 1:9. 1:1 winding is three-wire stranded around 7 turns, 1:4 winding: two-wire stranded around 8 turns, and 1:9 winding: three-wire concurrently wound around 10 turns, and the degree of stranding (roughly 3-4 times per centimeter). Translated with DeepL.com (free version) package ： 1pcx 1: 1 100W Balun DIY for Bipolar DP Antenna/Inverted V Positive V/Yagi etc. If you have any questions, please contact us in time, we will help you deal with the problem for the first time. Shipping Item will be shipped within 24 -48 hours after full payment is received. Normally the shippment to worldwide is used to take 15 to 30 business days, exclude Sat & Sun. Payment Payment must be received in 7 business days of auction closing. Please leave note for your special request (e.g. Colors or Size) in ebay note when you pay the order. Any special request cannot be accepted after 24 hours of payment,because most of orders will be processed instantly and same day dispatched. Contact Us If you have any questions, please feel free to email our servicer ，and we will reply you ASAP. If no response within 24 Hours, please check the spam of mail box or kindly re-send it to us. We greatly appreciate your POSITIVE feedback. Please do NOT leave negative or neutral feedback without any contact. If you haven't received item in 45 days, please contact us and we will arrange refund or resend Feedback We care about our valued buyers, if you have any questions, our Customer Service staffs will be very glad to help you. We try our best to reply your email as soon as possible, please kindly allow 24 hours(working day) for us to response. Thank you. We greatly appreciate your POSITIVE feedback. Please do NOT leave negative or neutral feedback without any contact.

Price: 14.25 USD

Location: shen zhen

End Time: 2024-06-24T14:07:44.000Z

Shipping Cost: 5 USD