-40%

1:1 Low Power Balun/Choke for CMC/Noise Reduction Gen II -Dipole / EFHW N9SAB

$ 29.02

  • Band: Ham Radio, 40 Meters, 20 Meters, 30 Meters, Dipole, QRP, Ham, Amateur, HF
  • Brand: N9SAB
  • Color: Black
  • Compatible Brand: For Xiegu, For Universal, Dipole, QRPver, TYT, QRP Guys, MFJ, Flex, BG2FX, FX-4C, Lab599 TX-500, For Alinco, For Elecraft, For Icom, For Kenwood, For Ten-Tec, For Yaesu, Universal
  • Compatible Product: Backpack, Portable, Stealth, Prepper, Home Station, Ultralight, Ham Radio, Rugged, Heavy Duty, Linked Dipole, Dipole, Base Station Radio, Mobile/In-Vehicle Radio, Portable/Handheld Radio
  • Country/Region of Manufacture: United States
  • Custom Bundle: Yes
  • Directivity: Omni-Directional, Bi-Directional
  • Features: SOTA, Portable, Backpack, Ultralight, Lightweight, Heavy Duty, Linked Dipole, POTA, QRP, Rugged, Durable, All weather, Weatherproof, Multi-Directional
  • Item Weight: 1.25oz
  • MPN: 1:1Choke
  • Manufacturer Warranty: None
  • Material: Metal/Plastic
  • Maximum Range: Global
  • Model: 1:1 QRP Dipole Balun
  • Number of Inputs: 1
  • Number of Outputs: 1
  • Size: 4 in
  • Type: Amateur Radio Antenna

Description

Reduce or Eliminate the presence of CMCs in your QRP System with a Super-Small, Ultralight Choke / Balun. Rugged, Durable Construction - Prevents Feed-Line Radiation 1:1 QRP Nano Dipole Balun/Choke for Common Mode Currents/Noise Reduction Gen II Reduce or Eliminate the presence of CMCs in your QRP System with a Super-Small, Ultralight Choke / Balun. Rugged, Durable Construction - Prevents Feed-Line Radiation Reduce or Eliminate the presence of CMCs in your QRP System with a Super-Small, Ultralight Choke/ Balun Rated for 25 Watts SSB /15 Watts CW / 10 Watts Digital Rugged, Durable Construction - Prevents Feed-Line Radiation Make your Low Power, Portable, Stealth and Base Operations even better Simple, Elegant, High Quality For Less. For 54.95 you will receive: An Original 2nd Generation Balun / Choke as depicted in the photos, tested and described below. M ade in America from materials sourced from U.S. sellers. 2 BNC thread protector caps / one for each end Free Shipping within the United States Your order will be shipped within 3 business days of payment being received or sooner 60 Day free Returns When one feeds one's Nano Dipole with coax, common mode currents (CMCs) can be generated which can result in the feedline becoming part of the antenna system. this can degrade dipole performance and produce unwanted interference. Since we are working with QRP power levels, getting the most efficient antenna system possible is very important. We prefer to have all of the available wattage directed by the antenna radials, not the coax. On the receiving end, this also helps the coax shield from acting as a receiver, reducing noise levels. The insertion loss ranges from -45 dB on 40 Meters to -20dB on 10M (see the chart in the photo section). The choke makes an excellent companion for the Nano or the Linked Dipoles. The Nano Dipole is available here: https://www.ebay.com/itm/164288863566 ... and don't forget to visit the store here: https://www.ebay.com/str/n9sab To reduce or eliminate these issues we have created an ultralight balun/choke to compliment the Nano Dipole. The purpose of a which is to connect a BALanced system (your Nano Mono-band Dipole) to an UNbalanced feed-line (your coax). Our Nano Balun Consists of a 13x8x6 mm toroid configured as a 1:1 guanella current balun with 15 turns of 2-Element wire (see schematic) connected to a BNC Female connector for the coax and a BNC Male connector for the antenna. The whole system weighs approximately 1.25 ounces (36 grams). This makes it an ideal traveling companion for your antenna. Plus, it seems to us that the darn things always cost too much, so we have tried to present a value alternative to much higher priced gear. Like all of our equipment, the choke balun is produced in a water resistant, highly durable form factor and is tested on the air before shipment. Amateur Radio Antennas 100 Watt Antennas Shop Now! Amateur Radio Antennas <50 Watt QRP Antennas Shop Now! Payment Shipping Returns PayPal is the preferred payment method. We ship every day Monday - Friday. We hope you will love your purchase, however if you need to return it, we have a free 30 day return policy.