JYR4010plus Shortwave Antenna HF Antenna 7/14/21/28MHz Waterproof Joint

Description: Description JYR4010plus Shortwave Antenna HF Antenna 7/14/21/28MHz Waterproof Joint w/ 4B150PLUS End-Fed Balun Description: How can it be called a long wire antenna? For convenience, we call the antenna that works in the low frequency band as a long-line antenna. Why use a long wire antenna? 1. It is not easy to set up an antenna in a city. This antenna is very simple to set up. 2. It has a slight gain, and has a better effect than a dipole antenna in its larger radiation direction. 3. Its directivity at close range is not obvious. 4. Rapid erection to meet the of mobile emergency communication. Attention: Long-line antenna boasts simple structure, low price and moderate gain. Compared with Yagi antennas and anti-polar periodic antennas, it has lower length directivity and gain. But its advantage is that because its gain is related to line length, users can find the length and angle suitable for receiving line. By comparing the signal wavelength, the length of line is calculated, which is very suitable for long-distance communication. When the line length is 4 times the wavelength and the elevation angle is 25 degrees, the gain is 3dB higher than that of the dipole antenna; when the line length is 8 times the wavelength, the gain is 6dB higher and the elevation angle drops to 18 degrees. Specifications: - Antenna model: JYR4010plus (4-band 7/14/21/28Mhz) - Antenna configuration: Antenna with End-fed balun x 1, Storage bag x 1; 2.5 square vibrator 20m/65.6ft x 1; Outdoor drawstring 20m/65.6ft x 1 - Input power: Transmitting in 30s and receiving in 30s, it is less 150W in SSB and CW modes; less than 100W in FT8 mode; less than 70W in FM, AM and FSK modes. When the transmission is greater than the reception time ratio, the transmission power must be appropriately reduced - Frequency range: 3-30mhz Antenna Erection: The end-fed antenna has low requirements for erection, and it can work normally if it is more than 2m/6.6ft away from the ground. In order to achieve a desired effect, it should be as high as possible and as open as possible. When the antenna is erected vertically, the communication is far away due to low elevation angle, that is, it is equivalent to an omnidirectional antenna. When erected horizontally, due to high elevation angle and close communication, it also has a certain directionality. Package Included: - 1 x Set of Antenna Note: - Feeder line is not included. Please purchase separately. - In order to ensure the waterproof function of its connector, vertical inclination angle should be less than 20 degrees for installation. Payment Terms 1. We accept PayPal,Payoneer,Visa Card,Google pay,Credit card etc. 2. We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay. Shipping Terms 1. We will process the order within the handling time ,if you have any questions, please contact us via eBay message or email. 2. For remote regions of DHL/FedEx..., extra shipping costs might be charged. Usually it costs about 30USD-50USD. We will contact you if shipping company informed us your address belongs to remote area. Thanks for your understanding. Return Terms If you receive the item that not satisfied or defective, please do not open case and kindly notify us within 30 days. We will guide you the returning process for replacement or refund. Custom Duties & Taxes 1. It is buyers responsibility to cover the import duties, taxes.We do not charge any taxes and fees, and the possible taxes and fees will be collected by the platform or by third parties such as customs and carriers. 2. Please check with your countrys customs office and inform us what/how much should declare before shipping. Feedback 1. Please kindly leave us a positive feedback and 5 star DSR if you satisfied with our product and service. Please feel free to contact us firstly if you have any problem with your order, we are responsible and credible seller and will solve the issue it for you asap. 2. If you are dissatisfied for any reason, please dont be quick to leave us neutral or negative feedback. We work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave positive feedback to all our customers. On Mar 11, 2024 at 23:55:30 PDT, seller added the following information:

Price: 58.9 USD

Location: Shenzhen

End Time: 2024-09-12T05:53:43.000Z

Shipping Cost: 5 USD