Description

The Latest Upgraded 10Khz-180Mhz Donut Broadband Antenna Low Impedance Converter 26.79 USD Free shipping Donut AM MW/SW HF Antenna Mini Loop Antenna for Malahiteam DSP DSP2 Receiver 17.79 USD Free shipping 2PCS Donut VHF UHF FM Mini Loop Antenna 400M-470MHz 80M-150MHz SMA Loop Antenna 23.79 USD Free shipping Small Loop Antenna 50K-500Mhz Full-Band Loop Active Receiving Antenna VHF UHF 51.79 USD Free shipping 5x SF20 VH F& UHF Dual Band SMA Male Small Flexible Stubby Radio Antenna 7cm UE 17.99 USD Free shipping 1Pc 9cm Short Dual Band Antenna HH-N2RS PL-259 For Mobile Radio UHF&VHF Black 14.99 USD Free shipping GA490 Active Loop Radio Antenna Receiving Shortwave SDR Super Receiving NHK/YU 67.79 USD Free shipping 5Pcs Antenna UHF 400-470MHz Magnetic Vehicle Mounted Antenna SMA Male US YU 23.79 USD Free shipping The Latest Upgraded 10Khz-180Mhz Donut Broadband Antenna Low Impedance Converter 26.79 USD Free shipping Donut AM MW/SW HF Antenna Mini Loop Antenna for Malahiteam DSP DSP2 Receiver 17.79 USD Free shipping 2PCS Donut VHF UHF FM Mini Loop Antenna 400M-470MHz 80M-150MHz SMA Loop Antenna 23.79 USD Free shipping 5x SF20 VH F& UHF Dual Band SMA Male Small Flexible Stubby Radio Antenna 7cm UE 17.99 USD Free shipping 1Pc 9cm Short Dual Band Antenna HH-N2RS PL-259 For Mobile Radio UHF&VHF Black 14.99 USD Free shipping GA490 Active Loop Radio Antenna Receiving Shortwave SDR Super Receiving NHK/YU 67.79 USD Free shipping 5Pcs Antenna UHF 400-470MHz Magnetic Vehicle Mounted Antenna SMA Male US YU 23.79 USD Free shipping JPC-12 7MHz-50MHz 100W Multi Band HF Shortwave GP Antenna QRP For Ham Radio 169.79 USD Free shipping A Fantastic Shop Send us a message Our Store Seller Profile Feedbacks Save this seller Contact 20W Magnetic QRP Antenna Loop Antenna For High Frequency Transceiver Icom-705 YU 20W Magnetic QRP Antenna small loop antenna for high frequency transceiver ICOM-705 5-30mhz 76-108mhz 110-150mhz 400-450mhz Description: This is a portable small loop antenna. It is easy and quick to set up the antenna for your shortwave transceiver. Anti-interference, low standing wave, strong directivity, full frequency band. Thus, allowing you to enjoy multi-band reception and communication indoors, windows, balconies and outdoors. Specifications: Frequency Range: 144—148MHz 430-440MHz 7—30MHz aeronautical band FM radio also provides excellent reception Tuning box: Band selection switch, pull up 7MHz, pull down 14-30MHz The upper knob is the frequency tuning knob, and the frequency tuning value does not change due to changes in the environment. The lower knob is the impedance matching knob, and the impedance matching value will change due to changes in the environment. Data transfer: 10W SSB: 20W installation method: Use the right angle adapter and double male butt to connect the antenna to the m seat on the back of the radio and stand up or connect the ring body to the connector on both sides of the controller and tighten it, then mount the tripod to the mount on the back of the tuner , open the tripod, place the antenna body firmly on the tripod, and finally connect the feeder (the feeder is attached with a choke, and one end of the choke is close to the small loop antenna). Now that the small loop antenna is connected to your station, you can now listen. First, let's introduce the function of the tuner panel. The toggle switch on the left is the frequency band selection switch (upper: 7MHz, lower: 14-30MHz). The main control knob, the upper knob is the frequency tuning knob, and the frequency tuning value will not change due to environmental changes; the lower knob is the impedance matching knob, and the impedance matching value will change due to environmental changes. (The adjustment range of the two knobs is 180 degrees, and the panel value is 0-12). To start using the radio, select the desired frequency, then turn the band switch to the desired band position, then adjust the impedance matching value of the lower knob to 6, and then adjust the upper knob to tune. At this time, pay attention to the background noise of the radio. The more resonance there is, the greater the noise floor of the station. At this point, let the radio transmit (cw, fm, am modes are available), pay attention to the standing wave indication, and fine-tune the frequency tuning knob when transmitting. Since the knob of the portable version has no deceleration function, the fine-tuning method must be more delicate, and the smaller the rotation angle, the better. At this time, it can be observed that the standing wave has obvious changes, but the minimum standing wave ratio is generally not lower than 1.5. At this time, the impedance matching knob needs to be adjusted. It is recommended to randomly adjust the positive and negative 5 scale values, and then repeat the steps of frequency tuning and observing the standing wave ratio. Due to the change of the matching value, there are two possibilities before the comparison, 1: the minimum value of the VSWR decreases; 2 the minimum value of the VSWR increases. If the minimum value of the standing wave ratio becomes lower, the impedance matching adjustment is close to the correct value, and further adjustment is possible. If the minimum value of the standing wave ratio becomes larger, Repeat the above steps to adjust the VSWR of the antenna to 1.0. For VHF and UHF bands, the upper knob is fixed to 12 to the end, and the lower knob can properly adjust the impedance resonance. Note: It is best for outdoor use, indoor use of the antenna as close to the window as possible, in a fully enclosed environment with reinforced concrete, against a wall and other environments, the VSWR of some frequency bands is not ideal. Advanced skills: When the signal is weak, the direction of the antenna can be rotated to improve the signal-to-noise ratio, which is beneficial to reception. The unique gain lobe of the loop antenna gives it horizontal gain directivity when upright. Using its characteristics, multiple signals in the horizontal direction can be selected in a targeted manner, and the co-channel interference in the horizontal direction can also be reduced. Of course, if the interfering signal is extremely strong, much larger than the useful signal that needs to be received, the weakening effect will not be too obvious, and it can still play a weakening role compared to the telescopic antenna. The Scope of Use: HF: 5~30MHz Power: 20W SWR: <1.2 (7MHz, 10MHz, 14MHz, 21MHz and 29MHz) FM: 76~108MHz VHF + Aviation Band: 110~150MHz UHF: 400~450MHz Package Included: 1X small loop antenna 1X2 meters transmitting antenna 1X5 meters 50 ohm coaxial cable 3X adapter About US About Our Items We strive to describe all items accurately and thoroughly, with the utmost care and attention to detail. However, to ensure a mutually satisfactory transaction, we kindly ask for your assistance in thoroughly reviewing the item description and photos, and addressing any questions before placing a bid. Customer Satisfaction We stand behind our commitment with exceptional service, a 100% money-back guarantee, and a dedication to customer satisfaction. I am readily available to address any inquiries or concerns you may have, both before and after your purchase. Our aim is to ensure your shopping experience is enjoyable and that you're delighted with your purchase. Feedback Your feedback is crucial to our business's success. If you're satisfied with your purchase and the service you received, we would greatly appreciate your positive feedback, along with an overall Detailed Selling Rating (DSR) of 5. Please take a moment to leave us positive feedback. Our eBay account is set up to automatically reciprocate positive feedback once yours is received. If you're considering leaving neutral/negative feedback or opening an eBay/PayPal case, we encourage you to reach out to us immediately. We're committed to resolving any issues to the best of our ability. Shipping Parcel will be shipped using Standard shipping method. For security purposes, items will be shipped exclusively to the confirmed address on Paypal. Please ensure your Shipping address is up to date before proceeding with payment. Estimated delivery time within the United States ranges from 3 to 10 business days, depending on your location. Returns We accept returns within 60 days from the date the buyer receives the item. If the item is found to be defective upon receipt, the customer has up to 30 days from the date of receipt to request an exchange for a new item or a refund. For returns due to a change of mind, we accept items in their original selling condition. However, if the package has been opened due to a mistaken order, it does not qualify for our return policy. Please note that the buyer is responsible for covering the cost of return postage. If you encounter any issues, please reach out to us via eBay message, and we'll respond within 24 hours.