Girsky radio call. Enchanting radio call on UHF in the mountains of Krimu Radio call in the mountains

Radio communications during hikes.

Great lovers of joyful jogging a couple of kilometers along the river, as well as fans of Morse code whistles and multi-colored signal flares may not read this writing!

It is possible, of course, for the brothers to go on a hike to place their guards on the shore as a signal or to notify the insurance company and the video operator about the beginning of the assault on the threshold by satellites.

phone, but it's expensive. It’s cheap to throw in portions into a lot of yalan spruce branches to notify the dining groups at the river about your arrival!

It would be best to use “portable UHF-FM radio stations”, or simply RATSI.

Please note that this information about our capabilities is far from complete.

Next, I will try to convey to those who want to know everything that I myself know about the choice, equipment, registration options and the choice of radio stations for various types of fully (water) tourist trips.

The article always does not claim to be a guide, instructions and hundreds of accurate information about this nutrition.

It’s just “thoughts out loud,” “for the sake of the old,” and nothing more than that. And to be sure, I have been on 14 trips to the Caucasus, plus the efforts of Okhta, Msti, Vuoksi and other Pikhorki... And I didn’t take any actions from myself more than 3 times. I can tell you about the relationship with the radios of the S'yanivsky stoves, we would like to…

Otje. ...At that hour, as spaceships roam the expanses of the Universe…

Some people still don’t know what they need and what they need.

The ratios allow you to protect a couple of hours in all situations, if the group has to split up, starting with a storm (and where are our sub-groups that arrived close to the SuperGazelle train?) and ending with the sound of quiet, who's drinking beer at the CP (“Vasya, Vasya, people ask to take not 7, but 10, and also a couple of khichins”).

Perche wider stagnation of the relationship between the insurance and the significant group that was moving below the threshold behind the skeleton, and the group of ships that are getting ready to go...

The photographer sits under the board and checks, afraid to go under the skiff in case a catamaran comes flying through the turn - you must not miss it! You can sit for two years... (you yourself sit for Farewell to Fatherland). And at this hour it was clear that the balloon would rub and there would be adhesives... And they were still guessing - and a hundred і what's around the corner, behind the skeleton, insurance?

Based on this situation, everyone will be calmer.

We have received radio communications and for communication between the channels that stretched across the rivers beyond the boundaries of visibility. The one who, having buried himself in the rubble on Aksauti, the head cat ahead of us, went back 700m, and we walked along a different channel, and then pulled the people from the decks.

It was an unacceptable situation if all the races were... During the rafting of a large mixed group of K-4, 4 K-2 and five kayakers along the B. Laba, the lead catamaran, demanding to anchor in front of folding crossings and insure others, clicked the beginning of the PP threshold and began to moor itself, especially get ahead of others. Half of the people were on the river ahead.

Let’s leave aside the criticism of the alloy and I will say only (whoever knows) that there is a turn and nothing is visible behind it. If everyone had a race (and it’s too loud to shout), then they wouldn’t be able to get along with each other... all the same. Pouch: two doubles and all kayakers, two broken boats (oars), ritual work immediately. Captain K-4 took an oar at the cash register... Power up Andriy Minin, taking his fate...

It’s even warmer in the swarm of salvation, if you go one by one... When rafting for two days on the Mzimta, the voices of friends drinking wine in a warm zucchini on the mountain, if they weren’t clarified, they were already heating!

AND THEN THE BOOK KIL. Podviyny (the cat was placed and after 50m it was thrown again). At Lyultsa's. And the people later recognized that I shouted in such a voice at the radio: “Help, we have a submarine keel!” That they thought - we have a khan. We were getting ready to click on Shvidka. We promptly christened the place, where we were picked up in 10 years. Right before we arrived, a real “Gazelle” was already checking for us, everything worked out.

I will no longer write down how easy it is to let someone go for a walk in the mountains, how easy it is to get someone straight from the kayak to drink the water, love the grass that was lost in the camp.

You can also ask the water from the shore to bring something from the speeches (otherwise you would run along the shore back and forth), inform those who are ahead about the gathering, so as not to worry (getting tired and crawling) or inadvertently...

Zagalom, corrosive radio communication then, if any groups and people move away from one another, beyond the boundaries of appearances and sensitivity, and without the need to send a message or check on anyone. Although you can stand on the different banks of Farewell Batkivshchyna, at 15 meters there is one view of one, no matter how much you shout or show with gestures, often you still don’t understand anything. How about the race...

The remaining squeak we vikorista of this rock on Chegem. There was a view of the river from Rodeobas, which is ahead, so that the kayakers on the river did not waste theirs. expensive an hour to run. The one who watches in real time, adjusting the course of people who have gone along the line, and galvanizing them in front of themselves.

Another stop is communication between cars at a distance (up to 15 km).

It would also be bad for everyone to agree on a single frequency for communication between different groups on the same river. We often sit in the same gorge around the bend and don’t know about it.

Even more serious is the stagnation of the radio in difficult situations.

Mostly throughout Russia (I don’t know about foreign countries) there are standard radio frequencies provided for various ritual services, for example, the Ministry of Taxes. There is no defense for consumption, and you will want to hear the shouts of the warriors on their frequency. True, the recommended radio at 27 MHz (SW) is unlikely to help, but lower. In an emergency, the following instructions allow you to ask for help on a low frequency, as long as your station was operating on that band and the official position is low. I myself contacted for an additional portable radio with the Ministry of Taxes of Uzbekistan B. Zelenchuk, on Biliy, Mzimti, locally on B. Labi and Aksauti. Also the frequencies of the warriors, but I don’t know them for sure.

On Dombai, to be honest, without checking it out, I think there are two borders there GSM , then MNS, melodiously, є.

Many areas have large-scale radio services to support various types of radio broadcasts on the CB band. For example, the “KRIK” service is located in Moscow. http://baskerville.narod.ru/cb/cb_disp.html .

Due to the obviousness of the official amateur radio station, your capabilities significantly expand. Many places have hundreds of radio amators, as well as special radio amator repeaters (repeaters), for example, in Rostov-on-Don, Sochi, Stavropol, Krasnodar, Cherkessk, Zelenchukskaya station. Through them, you can always ask the local radio operators for help, or just hurry along the way...

SO WHAT KIND OF RADIO STATIONS DO YOU NEED?

It is absolutely legal for ordinary citizens in Russia to use portable and car radios of three groups:

1) So titles Citizen Band (CB ) - Hromadsky range. 26.965-27.850 MHz. Up to 21 W.

2) Radio amateur connection. UKH ( VHF ) range. 144-146 MHz. up to 5 W.

3) So the range is called “license-free” - 69 channels in the region 421-434 MHz. 10 mW.

I just want to leave a last-minute reminder about the radio: “how many kilometers are there?”

Roughly speaking, the laws of physics are the same for all three ranges. The rule is simple:

To increase the radio communication range twice, you need to increase the transmission pressure fourfold.

And as a note: increasing the pressure of the drive to increase the distance by 1.4 times (square root of 2).

And the sensitivity of all decent daily reactions is approximately the same and today has already reached its theoretical limit - 0.12 - 0.2 μv and does not flow so much into the distance. The height of the antenna (radio) above the ground and the visibility on the radio road crossing have a much stronger effect on the distance.

In short, the same pulses with a pressure of 5 W can range from 2 km from the ground to 70 km from the tops of mountains in direct line of sight. And at sea and richly distant (for example, Krim has a wonderful little Turkish radio amateurs!). Pechers have the same radios that only work at 50-200m!L

RADIO STATIONS IN THE BAND.

The 27 MHz range is naturally very good for communication in open areas.

Such radios are purchased according to the law as follows: From the Radio Frequency Center

http://www.whitewater.ru/equip/radio-permit.html

According to the laws, it is necessary to revoke the purchase permit, buy the necessary stations in stores that have a license to sell such radios, and then return to the GRC and pay the transfers tens of pennies (from 100 to 400 rubles), register your skin radio. It's so simple. In fact, you can get by without the first price.

You will receive a personalized papier for a specific person and a specific person.

Without such a paper, any police officer and just a policeman has the right to choose your radio, plus fine you a hefty sum. If only I could get on the radio myself, take direction for you then. no one will. Tim is more at the mountains.

http://www. rfc- cfa. ru/main. phtml? p = codeksrf&l= ru

You can buy a radio with 1 to 400 channels with power up to 5W for a price ranging from 60 to 150 USD. (in shops). Or the car power supply is up to 21W. (Power units up to 200W are sold, but the one on the right is illegal).

You can find out more about SV at:http://www.qrz.ru/cb , http://baskerville.narod.ru/cb/cb.htm l , http://www.umd.ru/9.htm , http://www. boatclub. ru/radio. htmwhat and where to buy - on http://berkut-radio. people ru , http://www.midland. ru,Mitinsky radio market.

It becomes more difficult for me to take a special approach from the CB dietALAN 42 plusіMaycom A.H.( SH)27 http://cityradio.narod.ru/cb/transceivers/maycomcb_kat.html. I still PILOTI and BERKUTI. Our radios are cheap and have good performance, but are often bulky and not very expensive.

I want to burn all the suns in order to prepare only for a neat animal husbandry and most often do not survive a simple fall from a height of 1.5 m onto the asphalt (the housings break off in storage parts), and also become damaged when hit by boards. Every visit before sealing or as soon as possible vlogopredation On SV radios, I haven’t communicated even once. The design of our r/st is far from complete.

However, they offer one advantage - outlasting standard AA batteries. And the axis for charging batteries at imported stations

Need some help about the charging device. If it’s a car, there are no problems, two darts and a resistor are your charge! And in autonomous s/v there may be a battery (from the Mitinsky radio market) or a small hydroelectric power station that looks like a small screw near the water (or wheels) and motor.

Communication range between two radio stationsYosan 101 (4W) on Mzimti reached the route from Narzanovaya Polyana to the lizard barrel along the road (8-9 km) or the cable car to the market in Chervoniy Polyana (8 km).

From the ground, I followed this same approach and we know that I installed a stationary antenna on a 5-surface booth, at a distance of 16 km.

And now, thanks to its 16-surface frame, the connections are resistant to up to 40 km per day of “passage”.

In the short CB range, it is necessary to detect the presence of atmospheric vibration (passage) of radio waves, which is important for lovers of long-distance communications (up to 2000 km), but often it is even tempting to talk to a friend at 5 km. That is, if you replace your nearby subscriber with Italians, Poles or Turks, whose signal is heard from the ionized spheres of the atmosphere.

Moscow has one region, and other regions have different regions. True, the passage in the mountains of the Caucasus is rare. They drove in this world to this range of installations, like before the smіtnik, they gave, saying, to the people on the potal and to pay there everything they want. For example, at 27 MHz, great HF ​​furnaces operate for heating ingots in metallurgy!

As far as I know, the forests and weather may not influence the bitterness of the ligament in the NE, but the budinki, walls and mountain rocks will become very bitter.

Place metal rails with a 20 cm gap between the rods (bus track) and it is almost impenetrable for a 27 MHz radio signal.

Definitely need vikorystuvati for communication FM - modulation, in view of its greater economy and efficiency, is equal to AM.

I still. A bit of theory. An ideally functioning wireless antenna requires a working day, approximately equal to at least a quarter of a working day. Dovzhina hvyli dovnyuya: the number 300 is divided by the frequency in megahertz. Tobto. for the CB antenna it is approximately 2.7 m long!

To change the dimensions of the antennas, they should be shortened, so called. “spiral”, narrowly forming them with cats that can be chewed. However, their effectiveness is greater than that of a full-sized antenna.

This fact must be carefully observed when changing stations on different bands!

Spiral antennas work more efficiently in radio stations.

RADIO STATIONS UKH BAND.

The UHF range is called everything above 30 MHz and up to 300 MHz.

Officially, you can trade on UKH (and not just that) without becoming a radio amateur. The procedure for obtaining an amateur radio license is very similar to obtaining a license for a smooth-bore gun, only medical clearance is not required. It’s true that all the formalities don’t come down to the letter, so you can easily earn money for your money. You will have a chance to visit the GRC several times

watch out for the hour. The procedure is described at:http://www.qrz.ru/law/detail/51.

Briefly: you submit an application to become a radio station, after 1-3 months you will receive permission, then you write what you thought you had or bought (in fact, you won’t receive anything) and ask to see permission to buy. positive Next, follow the rules and at your own discretion, try the actions and then give you a positive response. To purchase a UKH radio, it is enough to select the 4th category. It's simpler. And the registration costs ridiculous pennies, cheaper for SV.

Would you say it's complicated?

Then the amateur radio license gives you many more rights and options. for work on purchase ranges from 1.5 MHz to 145 GHz!

One of my friends, who doesn’t bother with the radio enough, turned off the positive 5 times in 4 months. The layout of the exams turned out to be completely awkward.

Subtlety: you can run with the papers yourself, or better yet, become a member of the radio club. Axis stinks everything: http://www.qrz.ru/links/?ParentID=3

Moscow has two:

Central Radio club named after E.T. Krenkel http://www.srr.ru/previos/volga/37.html

Moscow Municipal Sports and Technical Club on Vernadsky Ave., budinok 9/10, tel. 131-02-29, 131-02-65. I'm a member myself Podilsky radio club I don’t know much about the Moskovskys. The people from the radio club will take half of your turbos on themselves.

You can walk on the street using the radio in the range of 144 - 145 MHz. You can, first of all, also use laptops in the range of 430 - 440 MHz, but also without understanding...

Є models that are legally sold are in different ranges.

There are already a lot of things here, both in preparation and in robot technology. Ale and the price of everything. From $120 to $400. For starters, I would like to point out that it is legal to sell you any radios designated as radio amators. You can buy professional models without permission, at your own risk.

Choose the best from the products of companies such asYAESU(in the same VERTEX- STANDARD), KENWOOD or else ICOM.

Firm MOTOROLAuse only professional models, and racesALINCOBecause of their low reliability, I would not be happy with tourism at the same prices. For more information about the assortment and where to buy, look at:

http://www. unicom. ru , http://www. atk. ru, http://www.radioma.ru, http://www. compasr. ru, http://www.leo.ru/catalog/list.asp?G=8

Very suitable for tourism VERTEX VX-110, VX-150, YAESU FT-10, KENWOOD TK-2107, TK-278…

The greatest oak radio for important minds of the vikoristan - VERTEX VX -500 (510)! It can be programmed without a computer. Ale vazhkuvata.

Ideal for tourism VERTEXVX-210 orVX-400 , (I have a pair of 210s, having bought them for 180 USD)!

These radio stations are small, light, simple (two handles and two buttons), very silly and don’t be afraid. Available at 145 and at 433 MHz. The frequencies are sewn up directly from the computer. Our troops are fighting against these in hot spots.

They want to see nickel metal hydride rechargeable battery 7.2V/1500mAh!, and in addition you can buy a pack of six basic batteries or AA batteries.

And yet, a miracle RICH for our help.YAESUVX-5 R! Div http://www.unicom.ru/Info/AMATEUR/VHF/vx5r.htm?ID=442 Waterproof, impact resistant, very small, approved for radio amateurs, on the 3rd (!!!) band. Usyogo for $400!J

by 50 Our practice is fenced off, but, I think, in the mountains you can try it, but there’s no one there to plant it.

This is a completely sealed modification VX-7 R , it is possible to confine the water, but the cost is about 550 dollars.

Before speaking, for all refurbished models, instead of standard batteries, you can add special cases for emergency batteries, which is even better in autonomy.

The 2m band (“two”), for all radio amplifiers, is 144-146 MHz, and is well suited for radio communication in open areas, on water bodies (sea) and for work in the mountains. It’s not for nothing that sailors (marine range 156-163 MHz), police and other government services, prisoners are victorious.

There is much less atmospheric noise there in the northeast. The long range of radio transmission in this range is

It is very rare and lasts for only a short time (for example, during meteorite falls or during a daylight event).

Moreover Full size antenna In this range there is a maximum of 50 cm, and can be either portable or basic with very small dimensions.

However, the remaining time on the airwaves is less and the country sells frequencies to commercial structures, including the range 144-146. So more and more often (accepted in Moscow) I sense there are not radio broadcasts at all... There, for example, there are already a number of channels for the MNS.

Radio stations of the so-called “license-free range” - 421-434 MHz.

I will write about this range below, about which it has been said without me:

I will also say that our extreme range (430-440 MHz) has long been introduced

on a secondary basis for radio amators.

They are allowed to push up to 5 watts.

According to the law, for legal entities it is allowed for a commercial broadcast of the title “license-free range” with 40 channels in the region 421-434 MHz with a tension of up to 10 ml...

http://zwkom.narod.ru/433.htm

Do not confuse the qiu on the right with the abbreviation FRS . This is an American standard, which is based on frequencies in the region of 462-467 MHz.

In our country, such products are categorically protected before import and sale. In Moscow, police and service radio communications operate on these frequencies.

So what p/st for 433 nibi because you can’t just sell it, but sell it because there’s not much punishment for it.

Radio communications at a voltage of 10 mW can reach up to a kilometer in this range (for which case is best suited) and up to 3-5 km in line of sight. That's rude.

Radio waves at these frequencies bounce well off hard surfaces and for them end up in a concrete wall 30 x 30 c m enough for a connection. All the stench looms powerfully and becomes muddy with fall, fog, and wet leaves.

A highly efficient antenna for this range has a very simple and compact design. A straight antenna can be soldered from a copper trowel in just one day. http://www.mountain.ru/radio/library/2001/anten/

The very radio stations in this range are currently sold anonymously (in Moscow, for example), but half of them are just games, without a connection. I’m not looking for specific models, I’ll just say that you need to buy products from well-known companies –ICOM, KENWOOD, ALINCO, ALAN, MOTOROLA. Prices for such radios are in the range of $30 – 150.

The actions of the race are based on the system VOX - Automatic switching on for transmission when a voice signal is sent to a wine headset - a headphone with a microphone or even for speech... A cool thing for those who have their hands full. It is only possible to get lost when the forces are active.

About my field experiments with ranges.

My friend and I, an accomplished radio amateur, conducted an experiment in 2000. We collected our favorite radio stations, and:

two r/st YAESU FT -416 (145 MHz), one YAESU FT -816 (430 MHz), one YOSAN SY 101 (27 MHz), one YAESU FT -41 (430 MHz) and one YOSAN 2204 (27 MHz). All the smells were new, in good condition and with charged batteries. Known place, the village signal on all ranges has already become extremely low... Two years of experiments have only confirmed the theory.

On the rises approx. 7 km of connections to the NE was very good, but at the hour of the collapse it was slightly extinguished at intervals of a quarter of the mile, then. 2.5m. Entering the field without changing anything.

On the 145 MHz band, the range of the sung signal was slightly longer, depending on those whose attenuation was less expressive in nature and the modulation intensity of the vicorized radios was higher. . 300m at the side of the direct line between us. The axis is to you and the view.

U ranges of 430 MHz, with less visible extinction under the hour of collapse were partial and strongly pronounced. Ale is not a quarter of the way, but more chaotic, which is more likely to lie in the trees and plus the spoils in the medicine shop. I had with me a hand-held 4-element straight antenna at 430. So the axis with її with additional protruded a few more distant connections, unless there were spots that needed to be looked for... The signal disappeared when everything was shifted to the right side.

Support: all modes have a low power of 4.5 W and some helical antennas, except the base one YOSANA 2204 working with a stationary antenna G.P. length 2.6 m at a height of 5 m.

In Travna 2003, the same fate, but without SV, was repeated in the mountains of Abkhazia, in the gorge of the Aapsta River. There's a bang in me dual-band transceiver YAESU FT -817, and my assistant has two laptops at 145 and 430 MHz ( FT -416 and FT -816). Usi – 5W.

In spite of the imperfection of the rich-band antenna of the 817, we can say that the result is slightly different.

The extinguishment had much less expression and clearly lay within the range of movement to a quarter of the spine on the skin area.

And, of course, we will notice the effect of radiotherapy on the skin. Then there were completely “deaf” points on the skin area, and then one type of one connection was sent to remote subscribers again.

However, the range of communications on the 145 MHz band was still slightly greater, lower at 430. We found one at 145,500 another 700 meters after that, as there were communications at 435,000. The maximum distance reached approximately 5 km beyond the gorge.

When replacing the standard “humic” antenna on the 817 with a telescopic one, up to 1 m, at 145 MHz from the company DIAMOND the range has increased significantly, another kilometer per repeat. The variety of language was good all the way.

Modulation intensity of walkie-talkies VERTEX VX-210 AV that of other professions is equal with the knowledge of r/st.

I don’t want to bore those who read this opus with retellings about all the similar research, I’ll just say that experiments with connections are for help portable I spent the rest of the 10 years without any responsibility and the results were most often repeated.

Tobto SV range works well without changing the code and on the plain locality. The options for this are inexpensive, accessible, even effortless and do not have high reliability.

The 433 MHz band ensured the paint resistance of the connection in the area, in the mountains. Also, “unlicensed radio stations” at low prices often have low modulation intensity (align with the brightness of voices that roar on the streets with police radios!) and low intensity. However, if you have lost amateur radio permission, you can use 5-watt radios on this band. The smells can also be structurally clear, shock-impacting, moisture-protecting, with variable modulation.

The 145 MHz band adds a small amount of the front two bands. I want a little more excitement, lower 433, and a little galas.

Radiokhvili dovzhinoy approx. 2m are little clayed by falls, they are good at overcoming obstacles, and they are unfavorably knocked out of the bushes and rocks.

It is not for nothing that most security services, military personnel, and sailors are exploiting this range. And communication from orbital stations operates in the two-meter range! Prices for these frequencies range from 100 dollars for a used radio to 300-400 for professional models, which, of course, is not affordable for everyone. But such prices are justified by its superior characteristics and reliability.

And finally, I would like to say something about the economics of radio stations .

Many types of radios have a scheme such as an economizer or SAVER.

This circuit periodically switches on most of the radio station cascades from the battery at any time. So it works like this - 1/3 second for switching on, 50 mA, then 2/3 sec for switching on, 5 mA, and so on. Moreover, this relationship can be developed over a wide range. View 1/1 to 1/10.

In professional radiotypes VERTEX VX-210 AV VIN allows you to reach a stable struma when taking only 8-10 mA, in good daily amateurs - the same level. CB radios with more channels have better coverage - obviously approx. 20 ta 80mA!

Among the witches single-dual channel r/st type Berkut and Pilot and jets can be significantly smaller - up to 3-30mA!

During transmission, the radio maintains approximately 180-250% of the output voltage from the battery! For example

YOSAN SY 101 (27 MHz) operates with an output voltage of 4 W from a 12 Volt power supply of approximately 800 mA.

A VERTEX VX-210 AV - Vіd 7.5 V - up to 1.6 A!

Care must be taken when choosing batteries for powering the radio.

Specially for the Moscow UKH portal

Peredmova

In essence, both the editorial and the publication itself are a project of a closed sheet for guests and guests of the Moscow UKH portal, which will be transferred to deprive them of the status of passive co-recipients of information, as “rie” and contributes to the underground correspondent respect to the vast contingent, and on naked enthusiasm, and The topic of radio communication with zagalom and UKH zokrema – it is, perhaps, more than just hobi.

And for the cob you need a little bit. You (it doesn’t matter whether the radio amator is positive or a correspondent of the “civilian” ranges, or perhaps a professional) carried out any QSO on VHF or UHF or LPD/PMR We took away such a result, which, according to your particular standards, falls within the manifestation of the possibility of coupling in the designated ranges. This may be both a record and an anti-record for distance; unforeseen frequency observation SSB and CW The ups and downs are equal to the correspondent’s signal (not everyone knows how it “looks” AirScatter ); connections in the minds, if the UKH were to be used, it would seem that they would burn out uncontrollably (for example, showing a little-researched, but in practice long-established “river effect” position in the minds of direct visibility) and much more.

Even short-term interest until the very result is followed by the nutrition of “why?”

So let’s take a look at our little “phenomena” at once, the powerful, practical insight that nothing can replace.

For this purpose, it is necessary to briefly describe: where (the coordinates of populated areas), in what weather conditions and at what time of arrival, for what difficulty of transmission (as it is a two-way connection) and what antenna (as it is straightened - approximately indicate the azimuth along the sides) light and any landmark, for example, a nearby populated area) revealed an ethereal “insignificance”.

Systematization and accumulation of evidence of this kind, as far as I know, has not yet been achieved on the water resource, and we ourselves can define first. And this means that it’s time for us to get to the edge of the tsikavat and sensitive information in order to explain it (and if we don’t get it, then we can hire it). to test the organization of connections in similar minds).

As a butt, I introduce the “selection of pollutants” from recent special practices of everyday life UHF - radio systems at Krimu.

Vlasna "miracles"

Axis of available information (given by my colleague in the service E. Fedorenko during an hour of test bypass of radio coverage zones near the chest of the past):
1). Base station position UHF - metro station Simferopol, height on the outskirts of the sea (about 300 m from the sea level)

2). Transmission intensity – 25 W, short feeder, all-direct antenna gain 3 dB (2 times per intensity)

3). The weather is gloomy, but dry; gloominess - more for the fire; hour - middle of the day.

4). A car radio with a power of 10 W and an all-direct antenna with a gain of as much as 3 dB has small connections (virtually without tears) from the base station of Simferopol along the entire winding gorge. w Kutuzivka (a little more from the sea near Alushta) and Perevalny, although it was located directly on the base of Girskaya a wall no less than a half-kilometer high (at a distance of about 30 km from the base). And then the radio channel from Simferopol “rising” on the significant territory of the city of Alushti.
“Kazki” is turned off, because three certified radio engineers were sitting in the car, for which tasks covering the radio communication interval that we are describing were not carried out. The discovery of a working radio channel along the apparently “closed” route was unsettling to them, because on that route Stilnikov’s base stations were located around the corner of the road.

Let's figure out how such “miracles” could happen.

The first profile (div. Fig. 1) will reveal a route with diffraction bends on the Girsky Peak (point B). Point A – base near Simferopol, point B – vehicle radio in the gorge.

The breaking point is a “natural” passive repeater.

Ale... Try to capture the energy of the route with passive relaying (directly from Simferopol; it is much more energetic) and by the Egli method, and by the classic Vvedensky formula, and simply by extinguishing the radio in the wild And they gave me a great deal: the rhubarb on the side came out in order -150… – 160 dBm for the maximum real sensitivity of a car radio -110 dBm. Well, the channel is working! There are also no signs of cyclonic and anticyclonic activity of the atmosphere, or at any time, which could bring to mind subrefraction and expansion of the radio wave “arc” bypassing the mountain peaks with an atmospheric conduit at great expense!

Well, what about the connection along the closed highway from Alushta (div. Fig. 2)?

A profile with yard-like bends, and also with one “dumb” top, well, we can’t do anything about it, since the same brokenness behind the breakdowns will lead to catastrophically negative results in the energy sector of the radio channel.

Look, look, look... That axis! Literally over the place hangs the colossus of the Demerdzhi Mountain, miraculously visible from Simferopol. Then, you can remove the route from the pad. I – Vaughn axis (Fig. 3).

“Vidbivach” (when “opened” on the side of the Simferopol highway) is located at the top of the mountain.

The geometric parameters of the path are close to those for the diffraction path in the gorge. Therefore, it is important to pay attention to the energy of the radio channel: the decibel value is again set to forty lower due to the sensitivity of the receiver, which is de facto a working radio channel.

І – it is important to recognize the subsuming in the phase of signals generated from the city’s schemes vipadkovy geometry, so that such “beaters” gain up to 40 dB of gain in order to “bring” the signal to within the theoretical limits.

Mother Nature is clearly complex, no matter what we think about it.

The axis is “physics”, theory and practice...

DIM

In Georgian radio communications there are a variety of portable and stationary radios. Of this radio range, very little is seen under private and commercial influences, and otherwise to law enforcement and government structures. What kind of devices are used in the Gorsky radio station?

Races

Ideal for small groups. Operating frequencies: 433 MHz (LPD), 446 MHz (PMR), 462 MHz (GMRS) and 467 MHz (FRS). In our country, since 2010, the remaining two standards have been blocked.

• Radio transmission intensity – 0.1 – 5 W
• Zhivlennya – AA type batteries or batteries
• There is no frequency adjustment, but only select a specific channel (a table of frequencies is provided)
• Any channel is encoded for isolation from other subscribers

Pros and cons of such radios:

• Small masa
• Low varity
• Problems with visual organs are not to blame
• Two types of living elements

• Little confidence
• Instability in extreme minds
• Easy to damage if dropped/impacted
• It is important to reach a signal that has become equal
• The guards and the Ministry of Taxes do not hear such ranges

For these reasons, many tourists and tourists choose models from ICOM, Vertex, Yaesu, Standart, Baofeng. The smell is caused by a flexible housing (mistonicity), moisture resistance, a reliable uninterrupted signal, and a wide operating frequency range (from 140 to 165 MHz).

Satellite devices for the Girsky radio communication:

• The geometry of the device plays an important role in determining the strength of the signal. It is also necessary to properly align the antennas. Today's roads don't require anything. Civilian models of radios have antennas that operate in the frequency ranges of 144 and 430 MHz. Alas, the fragments of this reaction are not heard by the MNS doctors, many of whom buy other antennas for their devices
• The transfer mode is the most energy-intensive process, so the thicker the battery, the lower the load on the device. There are also a lot of factors in the food saving mode. In extreme cases, you can immediately buy a stronger battery.
• Blocks outside noise, allowing the subscriber's voice to be clearly seen over the air. The system that is being configured can be adjusted to adjust the level of the “noise barrier”. Visible at decibels

RADIZVYAZOK NEAR THE MOUNTAINS

Regulations

Georgian radio calls need to be controlled by a group of subscribers. It is regulated by the mountaineering committee and the MNS base, the senior coach of the group, and so on. As a rule, subscribers receive a regular call “9 through 3”.

This means that the group is required to contact the CSP at 9, 12, 15, 18 and 21 years of age. If the connection has not arrived at the place before the end of the session, then an additional connection is assigned - 22, 23, 00, etc. Systematic sessions are continued until all subscribers are left without a trace.

I'll accept it

Ovens, tree plantings, relief irregularities, etc. create additional changes. To improve the signal, you need to go up to any height, or find the place where the best links are. The machine is placed in a strictly vertical position, which improves the “fishing” of the spine.

You can also paint the base station - install it on an additional antenna. By raising the station by 15-20 meters, you can significantly expand the range of a stable radio signal.

• Please check that there are no buttons on the device, which can be switched on suddenly when changing the radio position
• Protect your battery charge (especially if you use primary batteries or cheap batteries)
• If the signal strength is low, transmit only the most important information
• Clearly divide your group into one hour of communication sessions, positive and otherwise.

Contact our Company and find out even more useful information about radio stations and radio communications!

Considering the fact that when skiing, especially in the mountains, your hands are busy, the rationale depends on the ability to connect a headset. It is clear that the device has special functions that allow it to be activated using voice commands (VOX function). So dimensions play an important role. Even with active riding on licks, you will gain significant additional grams and cubic centimeters of skin.

No less important hour of autonomous robot- perhaps in the mountains, your radio station will shut down at various times, requiring intense energy consumption. It is important to note that the large battery will not be noticeable in the radio.

Moreover, due to the fact that they are reliable and prices, they give preference to the radios for the Midland LXT 325, Midland GXT 1000, Midland GXT 650. So you can spend a little more money, which will increase your respect even more technological devices from such brands as: Motorola, Kenwood , Vertex, Ajetrays.

Sturdy body up to modern conditions.

And now you will realize the fall of the snow, the fall of the devices themselves and other inadequacies, regardless of any type of insurance. Unfortunately, there are also strange situations associated with spending time in the mountains, for example, an avalanche. In this case, this is your only chance for trouble.

Apparently, the main criteria when choosing such devices may be strength to the body before impacts, moisture protection. Such races can sometimes be done with nasty butts.

Feeding: With the permission of the Dnipropetrovsk Mountaineering Federation, I am engaged in radio communications during mountaineering approaches.

We conducted a series of experiments in the mountains based on frequency and came up with a conclusion that is more beautiful than UKH and more beautiful, then more beautiful. Gorges work like Khvilevodi. The rest of these days we have been using the Transport and Viola radio 144 MHz, the connection brightness is satisfactory, the range of the base antenna (1/4 x 10 m cable extension) with counters is up to 15 km, the life of the batteries. Contagion Transport is slowly getting out of order and getting old morally.

At the lipnі mi buli in the Uzun-Kol a/l, there they praised the radio station Berkut-806 27 MHz of your production. Thank you for sharing the tactical and technical data of the stations (including the visibility of the base antenna), the particularities of communication in the mountains in the NE range, the visibility of the vologozahist, the importance of impact, completeness, availability available for one, discount when purchasing 6 -10 pcs., Possibility and availability of delivery.

Do you not release stations of the European standard PMR 446 MHz 2W-4W?

Subject:

When you carried out experiments in the mountains, you, melodiously, from low frequencies (27 MHz) for equalization, chose the original imported portable Si-Birations - which do not differ with the given parameters. Everything smells bad, because... Noise suppressing the stench raises a signal of 0.5 µV, or even stronger.

The 27 MHz frequencies are generated from a signal of 0.05-0.07 µV, then. Their noise suppression (an effective spectral noise suppressor, and not a simple amplitude one, as in imported radios) produces a signal that is 8-10 times weaker, lower than that of imported radios in the 27 MHz range.

Apparently, the range of the Shturman/Berkut/Jager/Hunter/Torist series radios is lower than that of imported portable C-Bi (27 MHz) radios.

With basic antennas, the range for friendly minds can be tens of kilometers, for unfriendly ones - at least 15 km.

What is the point of the Delta radio (Low Band range - close to 40 MHz) - in this range there are no long distances, pure ether - lower than the level of atmospheric noise, lower than in the 27 MHz range, and at the same time the end of the day It’s still decent to finish it, so you can get over it (in the range of 27 MHz the maximum value is 10.5 m, the radio wave avoids transients, equaled by half the maximum value, then in this range it is about 5-6 m. In the range of 40 MHz - it avoids transients close to 4 m. In the 144 MHz range - close to 1 meters.)

In my opinion, the wider radio range of 27 MHz is ideal, because best avoids transgressions, as well as with essential guards - this range has a higher level of ethereal noise and there are far-reaching passages in the minds of high sleepy activity (they can wedge themselves into the rosemary of taxis, such as they are running far away from you).

However, in Russia, as in most other countries, Low Band (30-50 MHz) is not in the frequency range available for civil communications (so you need to buy the frequency for money and register radios...), the same this range Low Band are more expensive, lower C-B (27 MHz) radio stations.

The KB Berkut radio has a body made of impact-resistant ABS plastic, for reliability it requires leather covers (there are good and inexpensive covers with a belt, metal clamp, and belt clips in the assortment).

Breezes are protected from the development of KB Berkut, and if it falls into water, drain the water in the middle. Ale, since the water is fresh, after drying the liquid with the dried elements of life, efficiency is restored, because Payments after selection and adjustment are made using 3M polymer coatings (like varnish, but even better).

Completeness ranges from bare radios to those equipped with cases, batteries, charging devices, and additional antennas.

Among imported high-frequency radios for radios, the model (16 channels in the range 400-520 MHz and (136-174 and 400-520 MHz)) remains especially popular for radios.

Ale radios of 27 MHz vibrations of KB Berkut work at the mountains for the minds of the line of sight distance (for the line of sight, depending) and much more per hour. For example, the radio stations in this series operate on 2700 mAh batteries with a 90/5/5 reception/transmission cycle of approximately 60 years. This is many times more expensive for any imported races...