Radio and Survival: Local VHF / UHF Communications

Read the previous part here and we continue.

Level Four – Portable VHF / UHF Radio Stations

Many others radio facilities, Because your initial radio channel allows you to use these frequencies. That makes sense, right?

No, and no, if not the course. If you’re on your own training program

From the translator:

  • In the Russian Federation, it’s possible that it’s not a problem. An exemplary analogue of the United States is the Technician, and the third (and second) General. In each country, the distribution of categories is different; follow the above advice on reconciliation with local legislation.

When you study the HF, you will click VHF questions like seeds. Again, this is my opinion. This is a more rational in the long term. Most portable radios are VHF / UHF stations. In short, this is a line of sight.

From the translator:

  • There are two bands that have been recorded on the UHF / VHF band;
  • VHF – 144-146 MHz, in some countries – 144-148 MHz. The common name is “two meters”, “two-meter” (along the wavelength in the amateur radio segment). In some countries, this range has the unlicensed standard MURS;
  • UHF – the service range is 400-520 MHz. Radio amateur area – 430-440 MHz. Common name is “70 cm”, “seventieth” (the wavelength in the amateur radio segment). In this range, it can be LPD, PMR, FRS, GMRS, PRS, SBRS, KDR, etc. Specify the field of radio communications;
  • Often there are questions about communication in the forest. It depends on the antenna, but it doesn’t follow the antennas;
  • There are fewer bands that can be used in the low frequency band, 30–80 MHz and, therefore, it is less convenient to use.
  • The line of sight can be seen through the binoculars. In general, it will make it possible to connect to another radio station. If it stands at ground level. If you are on the ground, then you can’t make it on the interlocutor. Ideal conditions are a flat steppe (or Wasteland), or a water surface. If you’re on or off, you’re moving away from you.

If you can see a person, you can contact him. Like that. 50-100 miles of radio stations. These radios are often used with a repeater to increase the range of communication.

So what is portable for you?

First of all, these are cheaper radio stations. But you get what you paid for, take note. You will never experience any problems. Maybe. If you want to rely on its work. But there is a skinny wallet where you can choose from.

  • BaoFeng UV-82
  • BaoFeng UV-5R

What do I think about them? In medical terms, it is like a plaster on a serious wound. You only have a radio. Mind being thrown out. This is not the best advertising, I guess. He decided not to fit together.

We like Yaesu VX series radio stations, and the VX-7 is the most preferred among them. I am pleased with the idea of ​​a civilian version. It is easy to set up accessories. Protected from dust. However, it is not possible to make any difference.

I can’t emphasize the equipment in the team. It’s not clear why it’s not worth it.

I’m not saying that I’ve been on the radio. I was satisfied. We all came to a single conclusion. If you want, then save, your right. If you’re persistent, you can always find out more. If you need to do that, you can …

From the translator:

  • In addition to high performance, it is thoroughly functional. We can recommend another model of the EU, namely the FT-60, which works on two bands;
  • If you are not planning to use it, it will be a matter of fact.
  • The Chinese radio stations and the radio stations are very different from each other. It is possible to use a voksuns baouxun, Wouxun – it’s not a problem. They are more expensive than the above.

When you buy radio stations, you get what you paid for. No matter what the standard radio stations are. If you’re not in a group of people, you’ll be able to monitor the equipment. It is better than a bunch of assorted trash.

From the translator:

  • In this case, the full length of the antennas is discussed as 1/4 of the wavelength. This is two meters for the amateur radio channel. For amateur UHF it is 17.5 cm. It is possible to draw conclusions. Thus, despite the fact that the VHF is more efficient in forest conditions than the VHF.
  • It is important to remember that you can use it. This is a rule that recommends that you get a radio station license. It can be associated with a widespread license-free in your country.

Level five. Mobile radio stations permanently installed

Transformers for VHF Transformers and VHF Transformers; Mobile radios transmit much more power than portables. My mobile phone station is 5 watts, it can be used for all VHF is 75 watts. However, “more” does not always mean “markedly better.”

From the translator:

  • The radio station doesn’t matter. If there is a forest or rugged terrain, then the real communication range is significantly reduced. Even more, it will shrink if there are buildings, hills on the line of sight, they absorb radio waves. Objects of industrial infrastructure, power lines, substations, and even electronic. Power can help overcome this interference, but not always. In general, it is better to go to the balcony;
  • The number of times it can be increased by 4 times. If the distance is already the limit, the battery is faster.

It is a wireless antenna. It is not conducive to health care.

Yaesu FT-2900R

It gives out 75 watts. If you are ready to use it, you must be able to do it. It is designed for off-road vehicles, it is sealed. It can be a problem.

Yaesu FT-8800R

The 8800th has been and has not been able to use it at all. 8800th a base node. It can work as a simplex (radio lt; -gt; radio) and through the repeater. If I bought one radio for UHF / VHF, I would choose it.

From the translator:

  • There are also mobile stations, for example, QYT KT8900.

Level six. Other ranges in the level structure

“CB” radio stations – avoid cheap, working only in FM mode. Buy only able to work in SSB. Every boobie can not work in SSB.

From the translator:

  • There is no need for radio stations. To buy a radio with SSB, you need to clearly focus on it.

Unlicensed Radio Stations

From the translator:

  • Radio power stations (LPD – 50 mW, PMR – 500 mW, CBC – 4 W in AM and FM and 12 W in SSB), some standards and fixed antenna. It often happens that it is strictly available to you.

I hope that I can give you an idea. survival.

Original article

Radio and Survival. Part 3: Local VHF / UHF communication

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