Simple directional antenna production method, radio antenna
Keywords: simple directional antenna production methods
Simple directional antenna production methods
Bought several Desheng Radio & P models, the performance is difficult to always feel after use to my satisfaction. So go to focus on some of the high price of high-end popular radio, but the price is really prohibitive. But in the forum found a phenomenon after the "bubble" more than some high-end radio enthusiasts effect even better than the low-end of the German Health Radio! In fact, this is a method to use if the right questions! In particular, whether there are "appropriate" antenna and its connection method! December winter solstice from His father-in-law's grave to sweep the big cold days was a little reluctant, put on my R9700 before leaving. In the town tens of miles on the outskirts of the cemetery I get an unexpected result, short-wave radio signal is surprisingly clear, normally those annoying and difficult to remove background noise covers are "disappeared", and that cool ah left me with a strong impression! In fact, various broadcast signals transmitted anywhere in the sky are the same, just different listening environment we live in has been. To cope with the modern urban poor listening environment, many prawn brains, tried everything, really music is not he. Leowood ring recently broadcast forum in making anti-aggravation of the antenna can be described as a wonderful masterpiece! This article just want to talk more simple antenna connection method, ie company Desheng simple soft outdoor antenna to make certain additional correction, this method is particularly suitable for people like me rely imbecile! But you can receive unexpected results! Production Method: A Case Study Radio to R9700! The rod antenna on the machine retracted! With a relatively thin and long sheath Park Chu, only slightly more than the diameter of the antenna rod a little rough, taking 1/4 A4 paper (do not use copy paper, thin, very poor), with a fine pen to the paper roll carton tube, length 15cm, the double-sided adhesive seal fixing adhesive tape. Then prepare a relatively fine 220 volt supply line, taking single stock, remove the outer kit (plastic skin or cloth), retains the insulating layer with the metal copper wire cover, about 1.5 m. This wire is wound from one end of the paper tube, and the paper tube is preorporated with the double-sided adhesive tape to help the fixed wire head, the winding process is close to the line, and the 1.5M line is all wound and stayed. A wiring head. After the entanglement, you will be uniformly wrapped on the paper tube, and the outdoor soft antenna is retracted and fixed, and finally take the pen rod inside the paper tube, even if it is done! It is very convenient to put the paper tubular tube in a completely retracted antenna tension! Desheng for its soft and thin radio antenna configuration and short, mainly to prevent signal overload, because it is a direct pick-up on the rod antenna clip. In this case aspect broadcast signal sensing outdoor antenna is limited, on the other hand - more easily contaminated by the electromagnetic wave linker connected directly into the radio. Engagement employed herein is actually a "LC", may be selected so that external antenna portion thicker long power cable, no problem is 5-10m, may induce a stronger or more remote signal is not overloaded , signals are generally broadcast high frequencies, very easy to pass the "LC." And many contaminated electromagnetic wave frequencies are relatively low, but it is not easy to pass this "inductor capacitor", which has played a good barrier action. At the same time, because of the spiral ring tube, it also plays a shielding effect on indoor electromagnetic contamination! Listen Result: My R9700 noise greatly reduced, greatly increasing the station received. In the FM segment: significant increase in signal strength, your voice loud nice! The original band only receive 1-2 TV2 station's signal is weak, just like furnishings! And now all of a sudden you can also receive a number of very clear signal TV station, the campus station is clear. I easily receive its broadcast time Deguang, Austria Canton, Canton Korea, Iran radio, CBC, Russia and wide, that night when I received Deguang 21m band I thought it was received: In the SW section VOA strong signal! Before that I do not easily get these stations, dense skyscrapers around me, listening environment is poor, often feel their own level is not even a rookie like, depressed! Radio complain of too low grade. In addition, I do not know why I still have not received easily BBC Chinese Taiwan? I may be listening too little time and too lacking in knowledge of BCL because of it! A little digression: high and low grade radio performance, especially for beginners with limited financial resources and friends no need to pursue high-end machine, the key is to make good use of the hands of radio, step by step! More learning, more exploration, and more in the forum "bubble", there will be harvest! Such as an outdoor antenna connection method described in this article is to explore together summed up the sash from the antenna making methods and introduce two tigers users hints Shwx Jun sentence. I have recently carefully pecking wear a lot R333, increasingly feel the effect of practical and reliable radio! Some say too much, but I disagree! Compared to 20 years ago, it's smaller tube radios do not know how many times, in order to learn if true, to meet a variety of purposes BCL, I never feel it big! It is so low price! Students still have to appreciate their parents, select the radio should be practical economic principle! Middle-aged people like me have to consider more problems, at a certain stage there also should be based on the principle of economic and practical! But this does not hinder our love for spinning BCL's! Spinning does not hinder our desire and pursuit of high-end radio! We will have a better motivation to work! We have more power to make money! More investment should understand this life direction! Laofan, shwx ...... and so are our heroes beckons to us Oh! ! ! Remember one thing: A good antenna connection method, so that you can use thicker longer outdoor antenna will not overload, so you can make your radio receive more and stronger broadcast signal! ! ! Incense lira published in the BCL forums ******************************************* ***** I have two tigers in a Beijing friendship airline relatives (he is the repair Electronics engineers Boeing) told me a simple, convenient method for the production of radio antenna, very good results, are posted with you shared. Conditions: If your home has aluminum windows, balconies or windows with metal security windows, you can begin to prepare. Preparation: hand drill or electric drill, drill bits (Φ3mm), screwdriver, round head self tapping screws (aluminum shop yard has to do), gaskets, few long single strand of wire (the double strand withdrawal scattered flowers line) . All-purpose adhesive, transparent plastic. A4 copy paper one. Method: 1, the aluminum window, window or balcony windows of metal security inconspicuous corner of a eye with a drill, an electric wire stripping 4-5CM long copper wire, wrapped round the self-tapping screw, fixed drilled on the eye, the spacer may ensure more firmly crimped. 2, then pull the wire you often listen to the radio position (bedside, desk or elsewhere), try to stay a little length. When used, the head of the wires wrapped around the rod antenna on the radio a few laps on it (note: the head of the wires do not peeling, do not expose the copper wire, ensure the integrity of the insulation sheath), if you want a more delicate point, you can then press said method do. 3, the copy paper sheet 8CM * 8CM is cut, wound into a cylindrical rod in a radio antenna, a transparent glue (Note: to prevent the paper tube is spread out, the paper roll and the antenna is not fixed), the wire head wrapped around the cylindrical ring 10, spring-like, all-purpose adhesive restraining secured to prevent spread, so that it would put a ready, take down the sleeve antenna. Effect: Even radio telescopic antenna is not it out, just put the rod sleeve antenna, FM, SW The effects were very good, February 24, 8:45 am, BBC SW 1528MHZ put Enya "How can I keep from sin ging? "(how could I not sing?), I listen with 9701, beautiful sound, noise is almost inaudible, about the same effect with a local FM station of. I now use this method produced two antennas, one on the bed, with PL757A listen; another on the desk, with R9701 or dissan 1010 years (Di Shenggong former Secretary of products, as bulky and R9700, single-conversion, but as good as SW sensitivity, selectivity and R9701, loud and clear voice, sound and feel better than 757A 9701). Principle: the use of aluminum windows, balconies or windows metal security windows, making a huge box-type antenna. ************************************************ anonymous friend : TV antenna doubles as an FM radio antenna hi, I listen to the radio, but found FM antenna receives less use machine, the radio signal is weak Wangqing almost impossible to listen when listening to the FM band, if the individual is the fabrication and installation of an outdoor antenna or radio and amplifier troublesome, I try doubles as a TV antenna FM radio antenna, reception very satisfactory. home outdoor antenna is an antenna with 001 brand amplifier output by an axis power box box connected to the room. there are two output holes on TV1 box , TV2, at the same time for two with TV, while at home, only a color TV, TV2 output hole has been idle. Then take a radio frequency signal from the TV lead plug hole, a lead line welded to the crocodile to the radio antenna is connected, open the FM section, Hey, pleasant surprise effect, actually close ten clear station! Quiet background sound beautiful voice almost made me, "I revel in the joy, but also worried about" TV and radio at the same time work will affect each other? Experiments show that prevails. Live in peace.
Our other product:
