For an hour, Russia has a significant increase in the area of ​​coverage with grids according to the GSM 900 standard. However, the situation is far from ideal. As soon as in the European countries the problem of unacceptable reception is practically every day, then a large number of people who are very often stuck with it - at the Zamysk booths, at dachas, etc. callous light!

The key to resolving the problem is called direct and non-direct antennas. True, buying an antenna is not enough - it is necessary to correctly install and nalashtuvati. Readers, who know about radioelectronics, can independently use the antenna and set up the antenna, as it is practical for the GSM standard. Today's news about the type of antennas and about the methods of establishing and adjusting.

Dovidka

To put it more simply, a mobile phone is a duplex radio station, like a radio exchange at lower frequencies. Usogo in the standard GSM 900 124 frequencies. The telephone, as a base station, can be operated on any frequency, but it must be started by the operator.

The base station (BS) is transmitting, and the telephone (MS) is received at frequencies of 935.2 - 959.8 MHz. The mobile phone is transmitted, and the base station is received at frequencies of 890.2 - 914.8 MHz. The channel from BS to MS is called Down Link, from MS to BS - Up Link. Lots of operators in the field of robots mobile phone from the base station - 35 km, zoomed in with the features of the standard. It is clear that in the standard configuration in one frequency channel 8 time-hour intervals (time-slots) are formed: one service, and seven - rozmovny. The maximum distance to the skin canal is 35 km. However, GSM has also transferred a non-standard configuration of the style, if the distance of the call is increased by 70 - 100 km (Extended Cell configuration). Unfortunately, for such a configuration, the number of rotor channels will change to 2 - 3, which will change the number of hedgehogs. Vikoristovuvati such a mode at the place of the operator is not visible. In the first place, the regime is to be victorious on the sea uzberezhzhi for the coastal zone of the island.

In such a rank, if you have a GSM 900 phone, do not try to set up calls, when you go to the nearest base station 35 km further. The maximum distance of the sound, reached by me, is 34 km.

Distance of the call

Inject the following factors into the distance of the radio connection:

1. Roztashuvannya BS and MS and Relief Mistsevosti.
2. The need for the sensitivity of MS.
3. Necessity and sensitivity BS.
4. Vikoristovuvani on MS and BS antennas.
5. The will of the Lord God (until you hear the bells and whistles)

Call the basic stations, but the voltage is 20 - 30 watts. Antennas will be stuck or straightened or straightened. Sensitivity base stations warehouse -100 dB - 115 dB. Zmіniti abo fit into the parameters of the koristuvach, obviously, you can’t. The force of the phone is set to 0.3 - 2 W, sensitivity - 90 - 105 dB. The sensitivity of the phone is mainly due to technologies, so that it’s quick to turn on the opening of the low-noise entrance annexes. While in the zones of accepted reception, the difference in sensitivity and toughness among models is practically uncomfortable, in the zone of non-reception, it can be critical. Most often the handset shows the level of the signal from the base station 1 - 2 cubes (per scale), but you can’t set it up: do not vistacha pushing. I want the ETSI standardization to regulate the standard wakefulness for the skin class of telephones, in reality it can be changed. SAGEM, Alcatel, Motorola handsets are very sensitive. And for the tediousness to pass through all the old telephones, especially Motorola. Try to phone and phase 2 may be about the same pressure.

Well, to relєfu, then at the same time and flourish it will expand more beautifully. Chim vishche vie you know (in the clearest boundaries), tim more beautifully the signal. It takes an hour to "extinguish" the sickness stronger, but the misery is forgotten.

Give a signal

Otzhe, you vibrate for the place and you want to preserve yourself with a sound. Go to the mountains, or to find the point of the handrail, from the booth or the necessary little guy. As soon as the phone is caught by the line, if it is on the border (or it is unstable), you have all the chances to correct it to the right, the antenna is called out. If you get to the station less than 30 km, and you can't catch a fancy, so try to use an antenna. In the end, try to find a house with sellers about turning the antenna, as the experiment will fail.

It’s the signal, if it’s even weak, but after all, it’s necessary to dial a number for a change. Even if the sensitivity is normal when the sensitivity is normal and the partner does not skimp on the transmission of your mobile device, then the energy of both lines (UL and DL) is balanced and it is possible to use a standard antenna, adjusted the frequencies to the middle of the transmission frequency. If a sp_vrozmovnik is an hour from an hour to know, it is necessary to "send" a low direct from the base station to your phone. Mozhlvo, varto joke the phone because of the shortness of sensitiveness. Ale how nasty you are, follow you straight from your phone to the base station. All the same, it was sizable, because of the vibration type of the antenna and the parameters, the data of the operator and the user must be answered.

In areas of non-singular reception, it is often difficult to prevent interference (pereshkody) between channels with the same and suspended frequencies. Unfortunately, the frequency resource, the visions of GSM 900 operators in Russia, are often "visible" in the zone of unreceptive reception from other base stations with the same or suspicious values ​​of the signal. Such frequencies are used together to make a sound, and when the signals are singing, the bells become unwell. As soon as on the screen of the phone there is a strong signal from the base station, but you should not get in, but it’s gone all the hour, that means we have stumbled into the "aliens". "Zmusiti" phone vibrate іnshu frequency go far not to be expected, protects a special function Nokia phones- Netmonitor - tsrobiti permissibilityє.

With a similar problem, I stumbled into the dachas, as I see myself from the great place to reach the open space. The phone received the suspended frequency channels at 70 dB, 73 dB and 72 dB, the sound of the sound was too short. Vryatuvavvav less of a primus vibration of the frequency channel with a lower level - 80 dB. Protect for the interconnected frequency resource to navigate the frequency of re-routing of the netting. As a matter of fact, as long as your phone has no Netmonitor, you can use a direct antenna with a hardened diagram. To fall asleep tilki zrobiti correct vibration.

Vibir antenna

As has already been said, the distance and soundness of the sound allow the very calling of the antenna. For telephones, in the main, call-type and logoperiodic antennas are used, as well as antennas for the type of channel. It is repeated, that at Zakhidniy Europe is in a day-to-day area and unrepentant reception. To that, direct antennas for GSM 900 terminals are not enough to be released. As a rule, the virobnik will propose a straightforward GSM 900 antenna, which, as a rule, is designated for robots with repeaters (repeaters) of operators.

At SND and Skidny Europe, the antennas are straightened out in a handicraft way. In addition, there are small factories in the Czech Republic, Poland and the Baltic states. A simple car magnetic antenna can be stronger than 1 - 3 dB (1 - 2 cubes for the telephone scale), a hvilyovy channel - 7 - 15 dB (as a result of folding and adjusting the antenna), which can be stored in a scale of 2 - 3 cubes per and a logperiodic antenna is 7 - 12 dB. Automotive antenna є with a vertical pin in 3/4, 1/2 or 5/8 for the length of the hvili. Navigate a simple car antenna, pick up the signal, you can correct the situation with an inappropriate sound. On the right, when you are on the phone, it’s close to 10 - 20% of the energy to be bogged down by the corystuvach; I myself have spared, as self-made, like vertical dipoles, raised by 5 m, they have violated the problem. Explainably, such a dipole is prepared.

Small. 1. Vertical dipole

Cleaned up from one end of the TV cable RG6U. Otrimuєmo central guide that wrapped around the cable. To the central conductor, the soldered wire is close to 8.2 cm (for the 900 MHz band) and vertically uphill. Before it is wrapped around, another shmat is soldered to the dart of the same dart and crinkle vertically downward (Fig. 1). Otrimuєmo shhos is similar to the letter "T" (Television switches have horizontal polarization, and GSM has vertical polarization, which requires the same dipole.) Be respectful and do not close the central core with the enclosures, as the phone can be connected. Well, the axis, for 5 chilin mi, they built a primitive antenna, as you do not compromise on the parameters of the Chinese automobile.

I will bring history from life. Having arrived in the last year for a trip to Crimu, I have seen, on the basis of the singing pokritty that was common by the operator. Tse meant that I would miss even more important calls. The signal appeared at the dakha cottage, but the prospect of staying there for two days didn’t creep me out. For 5 minutes, I know a shmat of a dart (replace the old one with aluminum). More than 10 gilts went to those who should know the 5-meter shmatok of the TV cable from the susides. The Nokia 7110 is a mechanical switch for ringing antennas, so I just jammed the central provider with a cable right in the pink phone, and wrapped the cable around the cable and connected it to the ringing phone. Having changed the antenna on the day of the little girl and already for 10 pounds for the joy of the motherland and for the good health of the suspects by phone.

It seems like we’ll turn to our rams. A collection of high-speed car antennae ($ 5 - 10).

Here the smut - do not get caught up on the nasty yak_st. Mayuchi Netmonitor, reconverting the antenna is easier. When the car antenna is connected to the phone, the signal level is subject to increase by 1 - 3 dB (for example, from -60 dB to -57 dB). In extreme cases, the signal is guilty of being overloaded. As soon as the antenna is connected, the signal will change by 5 dB or more, more clearly from the purchase. I want to respect that the car antenna is good at a cost of $ 40 and a half. Whilst in the middle of the Asian 10-dollar virobes, there is a lot of fun stuff.

Installed on the doors of your "little house in the village", the car antenna is very good for the problem due to the sound. As far as the power of the car antenna is concerned, it can be turned up to the last - for example, to the extended direct antenna - the hvilyovy channel. Win viglyadaє yak zvychayna TV antenna on the dakha booth.

The Hvilyovy channel allows you to adjust the real strength up to 7 - 15 dB with the optimal diagrams of straightness. Ale u nyogo є nedolik - vuzkosmugovy. The difference between the receiving frequency and the transmission frequency of GSM 900 is 45 MHz, and the entire working range is 890 - 960 MHz (smog at 70 MHz). Strive for the line chi close to line characteristics such a wide range is important. That is why it is necessary to detect the high-frequency channel, depending on the frequency of the operator, and on the specific situation, and in the absence of the situation, the resonance is destroyed to the frequency of the high-frequency or low-voltage direct. For a large, wide-cropped line, there is only a looped vibrator; for example, with a symmetrical loop; Also, it was followed by a small number of elements, say, 3 - 12, so if it will be more, adjust the antenna without possessing it will be important, besides, the working range of the antenna will sound.

I brought my mother to the right of the lonely canals, made by handicrafts. As a matter of fact, for a large number of antennas, the performance gains become less than 7 dB, the resonance at frequencies of 700 - 800 MHz is rather small, instead of the GSM-range and the performance of the standing signal is more than 3 (when transmitting), you can easily transfer signals from each phone. Professionally designed self-propelled antennas were developed rather quickly.

Now at the bottom - log-periodic antennas (you can also see them on the radio). The stench has a wide working range in the porous channel. To that, such antennas are less critical to the accuracy of the preparation and adjustment. The real efficiency is up to 10 - 14 dB.

Theoretically, for the demand it is possible to connect 2 channels, one - tuning to the receiving frequency, one - to the transmission frequency, but the system is even more foldable.

Cable and antenna adapters

At the 900 MHz range, the vibrator cable is supplied with a first-row role. Vidchiznyani televizіynі coaxial cables can be vikoristovuvati if not interconnected (extinguishing at 30 dB at 100 m is too large). From the available import devices under the RG6 - coaxial cable with underwire wrapped around. You will know Yogo at any shop. Decrease to become 20 - 24 dB at 100 m (experimentally rewound). Industry leading car antennas switch on the RG59 cable with an attenuation of 28 dB at 100 m. Antenna-type channel with a performance factor of 12 dB and 10 m for the RG6U cable give a wide range of 9.6 dB, and at 20 m - 7 dB.

On a large number of telephones there is a socket for the ringing antenna. In addition, for a skin-type phone, there is an antenna connection (close to $ 5), it is connected to the designated rose and is a short cable, with one side of which there is a specific high-frequency telephone outlet, and the standard is roses'єm. Exhaust the connection to the antenna connector, I will not interfere with 1 dB. Buy antennas perehіdnik, perekonyat yogo dієzdatnostі. When the adapter is included in the phone, an antenna is inserted into the phone, and the output cascade is switched to the adapter. In other words, if you just connect the adapter to the phone, the signal on the scale of the phone is guilty of getting in. Then plug in the antenna signal before the jumper, and the signal grows. If everything is still like this, then the transition is pratsyuє.

Adjustment of antennas on the bridge

Also, we bought an antenna and connected it to the cable and phone. We went to the top of the spot and started to set up the antenna. Change the phone so that you can see the screen. Yak has already spoken, when the antennas are set up with the devices Nokia is more beautiful All the fun of the Netmonitor function. For most telephones, you can enter special code that view of the menu service, which allows you to hit the reception level of 6 - 8 frequencies, can be accepted by the phone at the order of the drop, the frequency numbers, go to the base station, and there are a lot of pardons at the channel and in. (Describe the bagatioh service menus div. on: www.3ton.com/gsm.) Yakshho Netmonitor є, we will be monitoring the signal in decibels (nagaduєmo, the signal is strong, if the value is less in decibels). Yaksho vіn vіdsutnіy, adjusted for the standard scale of the signal.

Oscillations of the antennas of the base stations GSM 900 may cause vertical polarization, the channel will slide vertically. When you adjust the antennas, I respect those who receive the signal that are displayed in the phone, change from the reception until the decimal seconds, so the antenna turned around discretely. As soon as you see it right at the closest place, you can find it. Rotate the antenna towards the horizon. As soon as the signal is known, your knowledge is straightforward, when the signal is received at the maximum level. If the signal is dumb, turn the antenna over to the horizon, as long as you don’t appear. Remember that the skin meter and antenna installation can be virtual. If the signal is not known, try to move to a few meters ubik that pozukati know. You can spare you.

It is not necessary to pick up the cable between the antenna and the phone before 30 m: in any case, practically all the signal is absorbed into the cables.

Nasamkinets guided measurement of self-generated log-periodic antenna for the range of 850 - 950 MHz (Fig. 2). The samples were taken from the website www.atnn.ru. The program for rozrahunku Anteny-Khvilovy channel can still be found at: www.3ton.com/gsm.

Parameters: performance efficiency - 8.3 dB, high-performance opir - 60 Ohm.

Small. 2. Logoperiodic antenna

Date of publication: 23.06.2003

Dumki chitachiv

• Ernest / 06/12/2017 - 16:15
  I have a power supply, like an antenna, can it work without a power supply? For example, when it comes to television (the stench is similar), then there is a pidsilyuvach (living block).
• juriy / 08.11.2015 - 17:47
  I am mislivets є a satellite phone taurai ale is much more expensive in 25-30 km from my house є vezha naphtovoidobuvachiv in the swamps to catch calls mts pidkazhit yak її feasibility
• Igor / 07.17.2015 - 17:51
  I live in Ukraine. Near the cordon area. The cordon from Russia is 15 km away. In the same place, there is a Russian vezha of MTS at the mitnoy crossing. I want to put an antenna in my house, so I can connect to the Russian operator. Pitannya: yak antenna crushing? I live at the place of Glukhiv. The vishka stands near the Katerynivka district, ale on the side of Russia. On the road Rilsk (Kursk region) - Glukhiv (Sumy region)
• Mikola / 02.25.2015 - 12:20
  At my glance, it's easy to buy a signal at once. Є To achieve such decent options for a reasonable price. For example, I have to hang Mobi-900. Up to 100 square meters okhooply, according to the strength of the signal of all stylist operators(Russian). The axis can be read here lecture round with widgooks. Get the reporter more beautiful in the office store, so it didn't get too hot, but the poop was put in.
• Sergiy / 12/31/2014 - 10:23
  The same. There is no need for a sound. Lis that dog. The brothers were thinking helium and bags, so that the antenna could be pulled up. Alas, the far away ideas did not go. Please be affectionate. Late in the past.
• Sergiy / 12/31/2014 - 10:12
  Let it be a weasel, de podbati pidsilyuvach chi antenna for the mobile. Our signal is 60 km away by road, and 25 km to Finnish. All of me is one, lizbi buv signal. And then the dropouts will come up, if you ask for help, if you go to the highway, and ask to be quiet, if you go to the phone. Dyakuyu ahead.
• Kostya / 06/25/2014 - 09:11
  Forgetting the smut. Cover the vibrator and reflex grates with varnish. Take it with a pinch. Decilka balls, with drying of the skin. We will succeed again! Without the normal sound of crap. Having forgotten, the cable is more beautiful to miss the middle of the act. Vibrator and vivest z toch. "0" -potential (per wp).
• Kostya / 06/25/2014 - 08:57
  So it turned out that self-made antennas were trampled on, they were painted much more beautifully than the door junk sold in stores and had not been consumed. Head - put before being sold abo ponatically on the Internet is critical. Stores call up there, de the signal is strong and without additional attachments. Rinky is the same. Boys, graze on the sidewalks in. rely heavily on sales agents. The laws of radio engineering have not been skewed. Read the paperwork advices. Do not hear vipadkovyh poradnikіv! Fathers lived in the "land of pleasure" and why it was over! If your place is worth a lot of money, or a mountain stavte, don't check for a good reception. Cottage at me for 18 km from the antenna transmission. Antenna at a time is approximately 1.03 ... 1.05 average per day. The reflector is soldered from a dart blade of 2.5 mm. rozst.mіzh guides adjust 0.08 ... 0.1 tієї z lambdi average. The cable from the wicker braids. Diameter approx. 1 cm. The size of the bolster is thinner, but rather thin. See it as an active vibrator and a refl. Grid picking up to max. Dosage is critical! Bet, see, back and forth, it falls a lot. First, the most effective way to mask the dacha antenna! Putting the plastic on the back of the old plastic on the edge of the barrel. Susid_v mayzhe all "carried around" ... Robiv antheny friends and relatives. Not only single frames, but all sub-frames (ah, Kharchenko) are all alright! I stop - do not hear the saleswoman and the salesmen from the magician. they bought the technology - the bad guys were really fucked up! Success colleagues!
• Sergiy / 05/13/2014 - 05:50
  It was brought by the Keruvati in groups in extreme extreme hikes by the instructor. We head up to the participants by placing them in order to overwrite mobiles, pagers and in. infection of the booth, or in the base camp (which will transfer the closed route). Radio communication with this special technique of the group got unhealthy. Are you thinking about it? - Wonderful! eager to vibrate "cancer to Moscow", as we loved to see our lykar (candidate of medical sciences). stylish telephones The best frame for me has appeared with a perimeter of additional damage, plus 1 ... 2% on the site, just a few minutes from the suction, or from the reflector's mesh, it is flat, or slightly bent for the rigidity of the design. The material of the selector is medium, if there is a possibility of the medium. Obov'yazkovo curling 1 ... 2 balls of varnish with drying no less than several years of skin ball. The cable is with a plastic sheath. Dovzhina lowering - chim vin korotny tim luchche. ... Antenna and a cheap cable for TB with small wrap-around cables are visible. Vibratori tinker.
• / 14.04.2014 - 14:35
• Sanek / 08/07/2013 - 15:14
  I will weather with a 3gant schodo samopalu, tk. If it’s beyond 20 km, then some self-propelled gun is not possible. The signal dimmed at less than 3g only at 10 m on the cable, as a result, the strength in the antenna fell on the cable. The reporter brought the brothers, more precisely a set from the reporter. I took this one, and at once I can finish the spritny for my performance.
• Kostyantin / 07/04/2013 - 13:26
  sas-pavly to help you the truth is paid ale one hundred% pratsyuє 3G antenna seller 3gant.ru
• Єgor / 05/01/2013 - 18:34
  The axis is here є razmіri і armchair http://entropiy.ru Probuvatimu robiti
• 3gant / 04/02/2013 - 20:23
  After reading a lot of posts from the tsiy giltsi, well, really, for quiet people, the electronics and wine goers melodiously tsikavo rorahuvati everything, after the dinner, you can get a good result. I don’t cope with everything I’m afraid of with my hands. GOOD. Well, well, I’ll read it here to fix the wire to bend the cable at 60 rubles per meter of cup, and the result is 0. I’m the seller of the antennas themselves. I’m selling the antennas themselves. signal strength and bandwidth. from us, I took one only on the phone and said that without an interceptor it’s better to catch anything with him, I think I’ll turn it back, but I’m just not catching a Skoda for me, Skoda and I’ve already got it all up there. One such result in two rockets. and a ready-made set of 1350 kostu, the price of 14 dB vistachє at 8 km from the distance from the base station. і 17 dB one reseller will be installed in the districts with a distance of 25 km, it’s honestly that I myself didn’t clean it up if I didn’t get it wrong, but I didn’t even need to stretch that height to achieve the result. pidsumok hto do not entuse to buy і don’t partly ah who buy the site 3gant.ru і I have described everything) to that, before that I’m taking care of the jokes to polish the signal and fight the antennas of the diamonds and the smallest yaky)))
• Oleksandr / 02.24.2013 - 02:01
  After reading the wikkladeni comments from me the ZTE mf180 modem from the Biline ... my performance in the middle of the year is not like 200-500Kbit \ with and the backup speed is 20-80Kb \ with the price of the day .... 2.5 Mb / s and the speed of the download up to 200 Kbyte / s, a bit like changing the tariff, the speed of the download up to 800 Kb / s, and now up to 200 will be sent, and then at night ... % and on the Bilaynivsky ZTE mf180 -71dBm .... can there be a thread of change? write about be nice [email protected] I will be even more vydpovid ... vishka for 3-4 km
• fed / 05.11.2012 - 20:26
  і scho pratsyu
• Rosi / 03.10.2012 - 12:37
  cheaper in china buy repeater with antenna http://www.aliexpress.com/wholesale?SearchText=3g+repeater+booster&manual=y
• zhenya / 03.10.2012 - 10:04
  With the antenna Kharchenkom, you need to try different options. I changed the height, reattached the dart, the cable and everything went - the station is far away, the signal is weak, and at me 3ji and the video I wonder without galmas. Needs patience, grip, normal hands and head, and a connection modem with antenna jack
• novel / 06/03/2012 - 13:03
  Two darts of usb, 5m each, became 10 m, albeit true tovsti, ekranovany, vysokoshvydkisnі as written on them, five-liter plastic can with foil and a modem MTS MF 652 against the foil and the signal is reduced and the internet is visible. Chim is bigger antenna, tim is more beautiful.
• Petro ZhSM / 12.05.2012 - 14:38
  I have been tormenting myself with homemade antennas. I have spat on results and bought such a kit http://www.gsmvezde.ru/oborudovanie/gotovie_komplekti_vegatel/komplekt_vegatel_vt_3g_kit I have a great signal at once. The strength has become 30 dB.

1 Some of them have been brought up to see far beyond the place and have been lost there for a few days. The Internet is not what one wants, it is simply necessary for a robot. It is practically not possible to use 3G netting in remote areas of our region. The USB robot “whistles” from the built-in antenna to the 2G primus mode is also not satisfactory. That’s why I’ve spent a lot of time at the “kolgospiti” party ...

But in me the same bulo

For the cob, I added a tighter GPRS-terminal Siemens MC35i. For me, it’s far too cheap to get along with the native vicon, the protector in the kit doesn’t have anything, except for the modem itself. Yak I vyshov from the camp - rozpovim lower.
I don’t know how to use an FME (such antenna output to the terminal) for soldering, having added an FME-BNC adapter, and a BNC connector for soldering I’ve lost more than a few hours of coaxial Ethernet. Before the speech, the simple payment quietly worked for hours on end to the terminal.
I bought a TV antenna dart (75 Ohm) on the market.

What is a dipole for?

Isnu without an antenna design. It’s quiet, it’s easy to hit “on the line” for the GSM 900MHz band, I can name the bar, dipole, zigzag (“Kharchenko's antenna”), the most appropriate channel and logoperiodic. Stir is weak, and the hvilyovy canal is logoperiodic - apparently foldable at the ready-made and their needs, they are exactly right on the BS. I am zigzagging, perhaps, I’m growing madder, and when I leave, I’m stuck on a dipole with a “toroidal” diagram of straightness. Yogo is enough to stand upright. Until then, it’s a compact version, which is important in old minds.

Preparation process

After I put it on, I unpack a piece of coaxial cable for about 10cm on a BNC-rose:

Having soldered until they lived that wrapping around the middle vusik, the zavdovzhki also 10 centimeters each:



Now, gravely touch the arms of the dipole. Vir_vnyavshi vusiki, I put 82mm (approximately λ / 4 for 900MHz)






Far away I changed the mechanical function of the upper shoulder: all possession was pulled in a soft backpack, little can be ... shvidko nadiv yogo on the upper shoulder:



Apparently, I wanted it to be beautiful and just, pack everything into a heat-shrink tube, ale ... Heat shrinkage of the required diameter did not come with hands. Zate bully іzolenta ... Terribly viglyadaє, I know. Ale well pratsyuє!

The axis is so viglyadaє complex at the zbori:



Having set the time, explain how I connected the modem. My MC35i doesn’t have such a thing before eating, as it’s for the power. Serve youmu from 8 to 30 volt parking. The laptop does not have such springs. Hiba scho vid mesh adapter You can take 19.5V, but from old minds it is not an option. How am I dead?



- DC-DC reversal 5V-9V from the old network card. One end for USB, one for the modem.
- tse RS232 for USB. There is nothing tricky here.

Pidsumok

The nearest BS is about 20 km away.

The result of speedtest.net is no worse than the enemy, ale the speed, but it’s just about trying to get to the interface, as well as getting close to the maximum modem (for a passport 85.6kbit / s):

Zagalom, on the whole stage, I have a whole lot of grants. When it’s overridden, it’s possible to prevent the voice call (at a new є rose mobile phone). If I can, I will try again to create a zigzag-like antenna, but I will leave the extreme need in a whole lot.
Also in the plans is to try to recycle the 3G "whistle" from the external antennas, ale tse zovsіm іnsha history.

UPD: By purchasing a heat-insulating tube (diameter 6mm) and adding an insulating tape:

On my thought, it became more beautiful.
Thinking, and having rolled another ball of heat shrinkage (8mm) from the top:

UPD2: Having bought a heat shrink (15.8mm), the bag device is simply filled with headlights:



Kinchik is filled with thermoplastic adhesives from the gun. Nearby, from the factory vigotovlennya vidriznity foldable.

Description of the installation and adjustment of a cheap GSM reporter from Aliexpress for better signal strength stylized sound at the dacha or at the village.

There is no stiffening in the village

June 30, 2015 Rock in villages has become more demanding ... viyshov in one sector of the MTS base station. Tsey sector marveled at our remote village. Until the end of the day, the village had normally worked only with MTS, for the victorious operation of the other operators it was necessary to climb on top of the other bells and whistles ... The infection stopped working and MTS. The connection from the ringing light has been absorbed.

The people wrote and skarzhivsya in MTS, ale it was no use. They checked more money, encouraging MTS to assume the sector ... ale ni, who didn’t start. Bulo praised the decision of brothers to do everything in their own hands and solve the problem, not only with MTS, but with other operators of the stylistic connection.

On Aliexpress, I bought two different GSM repositories (for a reason, a store for a history). One for the susid, which is for us.

• The first, unattended operation to the GSM 900 standard is about 60 dB (per item, price as of 07/2016 ≈ 1500 rubles).
• Other, Lintratek standard E GSM 900 strength ≈70 dB (according to the product, price for 08/2016 ≈ 2400 rubles).

Immediately I will say that the first, and another GSM reporter, showed themselves very well! Comments on Aliexpress may have buoys, but the reporter cannot be used. We are sorry, people just didn’t choose to get up, and they didn’t even think about radio communication. For the clarification of the moments of the establishment of GSM reporters, a copy of the article was written.

Well, now we are starting to upgrade the radio situation in our village, establish a GSM reporter and reconcile the results.

For information about the radio environment, the Vikoristovuvavsya 4G modem Huawei E3372.

Win a miracle function AT ^ NETSCAN. Vikoristovuchi qiu function, you can scan the entire ether for the presence in the radio of the operators of the stylus connection (OpSoS), channels on certain sectors (stylists) of the base stations (BS), the frequency, the standard of the connection and the emergence of signals.

Equivalent signals without a GSM repeater

Before the establishment of a GSM repeater in the village, there was a problem of breaking up the signal from the base stations of the stylistic operators.

Bully otrimanі these results:

MTS vzagalі not visible (th signal< -102 dBm). Tele2 работает в диапазоне 1800 МГц, он нас не интересует.

With such lines, it is unwise for the signal to ring the bell. Come without SMS. Bilsh-mensh accepted sound, buvaє on a different surface, if you go to the window.

Pidbir possession

It is important to correctly select the antenna and GSM reporter, as well as set it up correctly.

In vipadku, if you have mercy, you don’t have anything to write and write in stores, but it’s not good to have.

Since then, we have tested two GSM repeaters.

GSM 900 repeater, 60 dB

Reporter of an unattended virobnik, named No Name.

Specifications:

• Frequencies of UpLink (see you to BS): 890.2 MHz —914.8 MG c
• DownLink frequencies (from BS before you): 935.2 MHz — 959.8 MHz
• Strength: 60 dB
• Living: 5V, 2A

More about new say nothing. Virobnik nevidomy, ale repiter dobre pratsyu.

• 890-960
• Strength, dBi: 14,5
• 38
• 35
• Dimensions, m: 1.0 x 0.19 x 0.065
• Price (08/2016), rub: 1400

Antenna AX-914Y at home

Antenna AX-914Y at home

Internal antenna for attracting

The internal antenna can be more beautifully directed (see details below).

Our vipad has Omni Broad Range.

• Operating frequency range, MHz: 806-960, 1710-2700
• Strength, dBi: 4
• DN width in H-area, degrees: 360
• DN width in E-area, degrees: 60
• Dimensions, m: 0.15 x 0.12
• Price (08/2016), rub: 1250

The antenna is universal, you can use it for 2G, GSM 900, 1800 and 3G (2100 MHz), LTE (2700 MHz) and Wi-Fi (2400 MHz).

Diagram of straightness at the vertical area of ​​60 degrees. Tobto. the main pellet is diagrams straight at the antenna, straightening down.

The antenna is designed to provide the maximum signal for the signal from one side and to the sides, as long as there is a minimum signal to the signal, apparently it is necessary to go to the stele.

Living block

The staff unit of livelihood has strongly represented us. Our villages are even more unstable. Step by step. Once, turning on the PSU at the outlet, a streak and a repetitive starter are put on. Having picked up the block of living, it became zealous ... well, in many cases, this scheme is even simpler, exploitation in such minds is not without reason.

RADA 3:

Immediately remember the standard living unit for the standard one. Characteristics: spill - 5 V, strum - 2 A.

For example, you can choose Mean Well ES-18E05-P1J.

Perevagi vikorystannya USB modem:

• Vimіryuvannya signal directly from the input of the call antenna (depending on whether the signal at the entrance GSM reporter).
• You can see all the sectors / stylists of all stylistic operators.
• You can see the frequency and number of the channels in all sectors / cells (for example, we can use GSM or EGSM ranges on the BS of the stylistic operators).

You can edit the information with the help of the AT command: AT ^ NETSCAN

Nalashtuvannya antennas on the BS

Because directing the antennas even more closely to the diagrams of directing, turning them smoothly by ± 10 degrees is required.

1. The antenna is rotated by a few degrees at the horizontal area;
2. Chekaєmo for approximately 20 seconds;
3. Z additional USB the modem of the smart phone freezes the signal;
4. As soon as the signal becomes girshim, it is turned at the opposite side. This method is used to achieve maximum rivnya the signal of the operator we need;
5. The antenna is rotated near the vertical area (uphill or downward), so the very reach of the maximum signal level;
6. Physical antenna.

The results of the activation at the outgoing call antennas:

Biline CID 1 -58 dBm Megafon CID 1 -67 dBm Megafon CID 2 -68 dBm Biline CID 2 -71 dBm Biline CID 3 -75 dBm MTS CID 1 -76 dBm MTS CID 2 -78 dBm

Even worse results, especially at Biline.

This is a methodology for getting used to an additional smartphone. Do not forget to check for about 20 seconds, or turn the antenna and turn it on the cob.

Results of robots GSM reporters

Now it's nice, for the sake of which everything has been repaired.

The results of being turned on by the GSM reporter, at 7 meters and one wall from the internal antenna of the GSM repeater (div. Schema vishche, 4).

I’ll guess the results for a vimir without a GSM reporter:

Megafon CID 1 -95 dBm Megafon CID 2 -98 dBm Biline CID 1 -98 dBm

Respect the dumb signal ... MTS is invisible zagalі.

Results with No Name GSM 900 repeater, 60 dB:

Biline -62.5 dBm Megafon -71.5 dBm MTS -83.3 dBm

Biline-62.5 dBm Megaphone-71.5 dBm