The latest version of the preamplifier on February 1, 2021 adds the FMDX HF switch. Adjust the FM band gain.
The latest upgraded version of K-180WLA (RF.BOX antenna input terminal and P.BOX output terminal add protection circuit, improve antistatic ability and anti-inductive lightning, preamplifier adds FMDX HF switch to adjust FM band gain) All Orders can provide A free adapter for Tecsun S2000, all adapters are equipped with BAK 1,000 cycle charging 18650 2750MAH battery (installed in the blue P.BOX box, use the mobile phone 5V charging head to charge)
P.BOX has: battery reverse connection protection, overcharge, overcurrent, antenna terminal short circuit perfect protection circuit, all shells are CNC precision processed, PCB high frequency design, feeder high specification dense net pure copper 50-1.5 feeder, exquisite materials Create a network-wide ultra-high cost-effective antenna
K-180WLA is an active loop broadband receiving antenna (radio full-band antenna) originally designed by me. The P.BOX feed box has a built-in 3.7V 18650 flat-head lithium battery. The integrated power supply module is the only one without external power supply. The active antenna of the power supply and the integrated charging management chip use the MICRO USB charging port to be compatible with the 5V charging head and charging cable of Android mobile phones, which is very convenient to use. Using ultra-high frequency and low noise preamplifier, the gain flatness in the ultra-wide working frequency 0.1-180MHZ working bandwidth is very good, providing about 20DB gain, even when working to 450MHZ, there is still about 8.9DB gain. The receiving frequency covers the long wave, medium wave, short wave, FM broadcast band and VHF aviation band. The small ring diameter is 55cm. It is easy to erect. It can be erected outside windows, balconies, terraces and roofs. It is best if there is no obstruction around it. It is very suitable for broadcasting with limited space. Fan erection. All the screws of the antenna are made of 304 stainless steel, and the pre-amplifier box is a fully waterproof structure, which can be used for long-term erection and use outdoors. It is suitable for all shortwave receivers such as Desheng S2000 S8800 PL-330 PL-365 PL-660 PL-880 PL-990 Shanjin 909X ICOM R71E YAESU FRG-8800 etc. It is especially suitable for SDR receivers. The antenna is a receiving antenna and cannot be used for transmission. Remember
The antenna includes one ring vibrator (304 stainless steel), one RF.BOX preamplifier box, one P.BOX feed box, two P.BOX fixing clips and two screws each (304 stainless steel), and dual SMA male adapter cables One (one meter in length), one SMA male to 3.5 plug adapter cable (1 meter in length), one Micro USB 2A charging cable (one meter in length), a TNC male and SMA male 50-1.5 feeder (length 10 meters) ), two antenna mounting fixed hoop (304 stainless steel material). Free 3 PVC mounting brackets, 2 butt-through straight and 1 pipe cap.
Note: The antenna is equipped with a dual SMA male adapter cable, an SMA to 3.5 plug adapter cable, and an S2000 BNC adapter, that is, your radio can be used with SMA female, BNC, or 3.5 jacks. Need to purchase other accessories separately. Receivers and radios with other interfaces need to bring their own adapters (you need to bring a small bottle of PVC glue when installing the antenna).
The following is the actual photo of K-180WLA:
Small black and small white are shipped randomly without specifying the color
Complete set of accessories: