K-180WLA is upgraded again . The 10-meter long feeder is upgraded to LMR100 96 braided pure copper dense mesh plus aluminum platinum double-shielded feeder (the highest specification of this type of feeder), which has better shielding effect and lower loss. The 10-meter feeder is SMA male Replace the head with an anti-return needle. The latest version of the preamplifier adds the FMDX HF switch to adjust the FM band gain (the FM strong signal area reduces the FM band gain and increases the HF band gain).
The default feeder length is 10 meters. If you need to customize feeders of other lengths, you can leave a message or contact us to change the price and then pay! ! K-180WLA (upgraded and improved version) has higher receiving dynamics and signal-to-noise ratio, can withstand -10DBM signal strength is not saturated, the latest version adds FMDX HF switch to adjust FM band gain (for FM strong signal area to reduce gain, prevent receiver overload and boost HF band gain).
Unified answers to questions about antenna concentration:
? Can K-180WLA be installed indoors?
Answer: The K-180WLA itself is designed to be an outdoor antenna front box with a fully waterproof structure, which can be used for long-term outdoor erection. It can be erected and used indoors, of course, but indoors are blocked by buildings and various indoor interferences. This is indoor use Reason for poor reception. So if you have the conditions, try to erect it outdoors, but if you don’t have the conditions, you should also stick out near the window or the window.
? Can K-180WLA be used in both medium wave and short wave FM bands?
Answer: The K-180WLA preamplifier gain is about 20DB, and the operating frequency of the guaranteed index is 0.1-180MHZ, which completely covers the medium-wave short-wave and FM bands. But as you can see in the reviews, some people say that the medium wave works well, some people say that the shortwave and FM bands are good, some people say that all the bands work, this is because the external antenna ports of different radios are not full-band, and also That is, most radios do not have a medium wave external antenna port. Of course, such radios are ineffective, but most radio external antenna ports support shortwave and FM bands.
? Which radios are available?
Answer: As long as the radio with an external low-impedance port can be used, the effect of different radios with the same antenna is different, because of the difference caused by different radio performance (remember that radios without external antenna ports cannot be used!).
? Can some stations be received?
A: We can only guarantee that the quality of the antenna and the indicators cannot guarantee that certain stations you want to receive will be received, especially for short waves, the propagation characteristics of the ionospheric reflection and propagation at different times and seasons and different frequencies are different.
? Are the antennas of the latest version, and what is the difference with the old version?
Answer: The current version is the latest improved version. The new version has added protection devices on the ports and optimized the circuit. Static and radio terminals are not easy to damage the preamplifier due to misconnection, and the preamplifier has added FMDX and HF switches. Switch between different positions to achieve the best reception when used in different electromagnetic environments (this is a unique feature of K-180WLA among all active antennas).
? Are the antennas tested and shipped?
Answer: We have made antennas for more than ten years, and the products must be exported to foreign countries. All components and assemblies must be strictly tested, including accessories, before they can be sent out, but it is not as you imagined to install the antenna and connect it to the radio to test , there is no such low test method, we all have more advanced instruments to test its gain and coefficient and other indicators, before delivery, we are 100% sure that all normal indicators are qualified, we can 100% guarantee the products you receive All of them are completely normal and qualified, and there are instructions at the end of the description about after-sales (in addition, the instructions are very important to receive the goods, you must read the instructions carefully, and the precautions are also explained in the description below if you have time to look carefully).
? Special Note: For Sangean 909X2 users, the medium wave of this radio is basically invalid, because the attenuation of this radio medium wave external antenna port is more than 48DB for the medium wave band, only the short wave is the best, and the FM wave band has a poor electromagnetic environment. This radio is still not disconnected even if the outdoor antenna rod is connected externally (it is very susceptible to interference), and the AM RF GIAN needs to be adjusted during use to get the best reception effect.
? How about receiving amateur radio signals?
Answer: The transmitting power of amateur radio stations is relatively small and cannot be compared with the tens of kilowatts of radio stations. They are relatively weak signals. Therefore, in order to have a good receiving effect, the antenna must be set up outdoors, and the receiving direction is not blocked.
? Answers to questions about the aviation band: The aviation band belongs to the VHF band. A large number of harmonics and other interferences in this band adjacent to the FM band will seriously affect the reception of this band. Therefore, in order to have a good reception effect in the aviation band, it is necessary to have bandpass and bandpass. The SDR receiver of the filter, the 0rdinary radio air band is only an additional function and does not have a separate external antenna port and a band-pass filter for the corresponding band, so the receiving effect of ordinary radios in areas with poor electromagnetic environment is better than that of ordinary radios. SDR receivers with passband-stop filters are a lot worse.
The latest upgraded version of K-180WLA (RF.BOX antenna input end and P.BOX output end add protection circuit and improve anti-static ability and anti-induction l1ghtning protection, preamplifier adds FMDX HF switch to adjust FM band gain) All orders are One adapter for Desheng S2000 is given as a gift, and all BA1K 18650 2750MAH batteries (installed in the blue P.BOX box and charged with the 5V charging head of the mobile phone) are given as a gift.
Special note: The antenna has to undergo more than three rigorous tests before and after assembly, so before delivery, it is 100% guaranteed that the antenna indicators are qualified and perfect. In addition, this antenna is an active receiving antenna and cannot be used for transmission. The transmission will damage the preamplifier ( in that box below the ringlet)! ! Do not connect other power supplies indiscriminately, and the input of the small ring cannot be connected to other types of antennas (only the small ring can be connected), otherwise the preamplifier may also be damaged! Do not pull the feeder with force. It is easy to stretch the shielding layer and cause the SMA inner core needle to retract. The SMA male head is relatively small and must be aligned with the hole and then screwed in with a little force. This can easily cause the SMA inner needle to be skewed and broken or the inner needle to be retracted. The small loop antenna must not be tied to the transmitting antenna. Such a strong RF field strength can easily damage the preamplifier. The instruction manual is very important. Be sure to read the instruction carefully!
Medium wave band receiving effect test
P.BOX has: battery anti-reverse connection protection, overcharge, overcurrent, antenna end short circuit perfect protection circuit, all casings are CNC precision machined, PCB high frequency design, feeder high specification dense mesh pure copper 50-1.5 feeder, the material is exquisite Create a super cost-effective antenna for the entire network.
K-180WLA is an original design of an active loop broadband receiving antenna (radio full-band antenna). The P.BOX feeder box has a built-in 3.7V 18650 flat-head lithium battery, which integrates a power supply module and an active antenna that does not require an external power supply. It also integrates a charging management chip and uses the MICRO USB charging port to be compatible with Android phone 5V charging head and charging cable, which is very convenient to use. Using ultra-high-frequency low-noise preamplifier devices, the gain flatness in the ultra-wide operating frequency 0.1-180MHZ operating bandwidth is very good, providing about 20DB gain, even if it works to 450MHZ gain, there is still about 8.9DB. The receiving frequency covers long wave, medium wave, short wave, FM broadcast band and VHF aviation band. The diameter of the small ring is 55CM. It is easy to install and can be installed outside windows, balconies, terraces and roofs. Fan set up. 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 erected for a long time outdoors in the wind and rain. It is suitable for all shortwave receivers such as Tecsun S2000 S8800 PL-330 PL-365 PL-660 PL-880 PL-990 Sangean 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 transmitting! !
Note: The antenna is equipped with a double 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 sockets, BNC sockets, and 3.5 jacks. Additional accessories need to be purchased separately. Receivers and radios with other interfaces need to prepare their own adapters (you need to prepare a small bottle of PVC glue when installing the antenna).
Package Included:
Ring Vibrator (304 stainless steel)
1 x RF.BOX preamplifier box
1 x P.BOX feeder box
2 x P.BOX fixing clips and screws (304 stainless steel)
1 x dual SMA male adapter cables One (one meter in length)
1 x SMA male to 3.5 plug adapter cable (1 meter in length)
1 x Micro USB 2A charging cable (one meter in length)
1 x TNC male and SMA male 50-1.5 feeder (10 meters in length) )
2 x Fixed hoops for antenna installation (304 stainless steel)
3 x PVC Mounting Brackets
2 x Docking Straights
1 x Pipe Cap
Availability: 
Shipping: Free Airmail 
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