MLA-30 Long Range Directional Loop Antenna Long Line Antenna Active Medium Wave Short Wave Radio Antenna Indoor SMA sw Antenna for RTL SDR Radio Receiver Radio Stations

The operating current of this device is only about 70mA, when it is not connected to the antenna, it can even reach as low as 5mA. Some power bank will assume that the device has been fully charged thus cut off the power. If that's the case ,please try power it from Wall socket. Listening to shortwave radio is an exciting hobby, but for urban residents, the experience is often disappointing. We can hardly receive any useful signals, this is true even for the more powerful radio stations. The signals are buried in all different types of interference. The urban radio frequency interference (RFI) has increased drastically, and various poorly designed electronic devices have been used in every corner of the city. Interference is produced by LCD TV, WiFi routers, poorly designed power adapters, and Powerline WiFi Extender, electric car chargers, etc. All these together contribute to the interference of short-wave spectrum. If there is a suitable place to set up an outdoor long-line antenna, things could be different. But when living in a condo or apartment, No roof can be used to set up long-line antennas. That's when you need a MLA-30, a magnetic loop antenna just suited for balcony setup. Specification: Small, compact, low-profile, draws little to none attention Effective range: 100kHz to 30 MHz Power by USB, super convenient. A feeder is included for ease of set-up. No manual adjustment required Stainless steel ring vibrator, easy to install and easy to maintain. Rainproof enclosure for long-term outdoor use. Note: A PVC tube with enough strength is required to support the antenna; you can buy it in any hardware store or use any bamboo poles, wood poles, etc.at hand, and be careful not to use metal one. Package Includes: Antenna amplifier with 10m feeder * 1 Stainless steel vibrator *1 Bias supply *1 USB cable 0.8 m *1 60cm SMA jumper X1 Stainless steel screw X2