LNR Loop Tuning Resonant Loop Antenna Amplifier Ham Radio Accessory os67
LNR Loop Tuning Resonant Loop Antenna Amplifier Ham Radio Accessory Replacement for Wellbrook Description: All In One! It boasts new tuned large loop, low noise, natural resonance tuning, multi-stage amplification, optional tuning/broadband mode, medium wave filter.
It is specially tailored for resonant amplifier enthusiasts. Let you enjoy the DX fun brought by low-noise reception and tuning! It contains an amplifier and a controller. The amplifier can be installed outdoors, connected with a large loop of flexible wire and a terminal.And the size of loop can be adjusted freely. The recommended circumference is 3-8m/9.8-26.2ft. The amplifier unit and controller unit are recommended to be connected with a CAT7 standard double-shielded network cable for home use, and try to prevent it from environment interference. The controller unit contains five switches: Power, Preamp, Tune/Broadband, SW/MW, and MW Filter.
The tuning part has two tuning knobs: Tune and Fine Tune. After coarse tuning, the Fine Tune knob can be used for more precise resonance tuning. The power supply voltage at the controller end is 12-15V/200mA (internal positive and external negative), and BNC port is connected to the receiver. MW Filter switch can attenuate the medium wave band to reduce the interference to the shortwave low-frequency band. The working principle of the antenna is to tune the natural resonance and increase the amplification, and it can switch between the Tune/Broadband modes.
It is also equipped with a separate preamplifier of about 15dB to make up for the lack of gain in the wideband mode, or the weak signal secondary amplification in the tuning mode to view the signal peak value through a spectrum for tuning and adjustment, and finally turn off the preamplifier. Strong signals can turn off the preamplifier for a better listening experience. The amplifier unit has been glued and waterproof. It can be installed outdoors with professional support rods and antenna rotators, or it can be installed indoors with a tripod.
The ring body can be multi-core flexible cords, coaxial feeders of different specifications, etc. Matched with terminal blocks to connect to the amplifier terminal.
Package Included: - 1x Controller unit - 1 x Amplifier unit Note: - Network cable and power adapter are not included. Thank you for your understanding! Usually it costs about 30USD-50USD. If you receive the item that not satisfied or defective, please do not open case and kindly notify us within 30 days.