设台地是山上还是山脚下？

这环境和距离直频感觉很困难，不妨考虑在山顶装一个中继。

如果都是在山顶那随便买个手台都行

使用场景是什么呢？每个人的位置在山上还是山下？如果都在山脚，只是几个固定的人之间进行联系，没有打中继或其他玩业余无线电的需求，而且手机信号很好，可以考虑公网对讲机，走4G网络。但是，因为是走4G，所以可能会有流量费。

@"BG4IJK"#p17006 补充一下：如果既有互相联系的需求，又有玩业余无线电的需求，你可以买两个对讲机，一个公网机，一个业余机，各做各的事

如果都在山顶（或者都能目视无遮挡），随便买个手台就行

山顶用车台功率大些问题不大，山谷里，估计就不好说了。或者山顶中继来解决。

谢谢大家的回复，不考虑用中继，也不考虑用公网；只有两个人，我在山腰，另一个人在山谷，想简单点，用两个对讲机解决

@"WOLF-chiken"#p17024 车台较贵，不想花太多钱😀

@"BI1SFO"#p17000 一个在山坡，一个在山脚

Given that the communication range is approximately 15 kilometers between several mountains in a mountainous area, what type of radio would be suitable for this need?

nydalu

Seeking advice from beginners

Gintoki

nydalu
Actually, this situation isn't that complicated at all.
Currently, the maximum power for handheld radios on the market is around 10 watts. There are only two models that can meet both high power and affordability: BaoFeng UV5RH and BaoFeng UVK5Plus, which cost around 120 yuan (RMB). Both of these handheld radios have a maximum transmission power of 10 watts and support Type-C charging. They can also be used to listen to aviation and other frequencies.
The main reason you and your friends can or cannot communicate via walkie-talkies is not the distance between you, but rather the amount of obstruction between the two of you and how high that obstruction is.
As you mentioned, the straight-line distance between you and your friend is approximately 15 kilometers. You live on the hillside, while your friend lives in the valley.
Based on my practical experience using handheld radios, a 10-watt transmit power on the handheld device should be sufficient to cover 15 kilometers in an area with good electromagnetic wave conditions, even with obstructions. Furthermore, the U-band and V-band coverage distances for handheld devices are completely different. In open areas, the V-band can propagate further than the U-band.
My suggestion is that you buy a 10-watt handheld radio and try it out with your friends to see if you can establish communication.
If you are unable to connect, there is another option: making your own Yagi antenna. You only need to purchase a cable with connectors for a few dollars, and then you can use wooden sticks, wires, or measuring tapes made of metal from your home to easily create a Yagi antenna. The Yagi antenna has good tolerance and does not require precise manufacturing to be used. The communication distance of the simplest 3-element Yagi antenna is much longer than that of the original antenna on the handheld radio [For example, I have a repeater station about 60 kilometers away, but I cannot connect with the original antenna on my handheld radio. However, when I use a 3-element Yagi antenna, I can connect successfully, and the signal is very good].
Try using your Yagi antennas to point at each other and see if you can make contact.
If this still doesn't work, there is another option: using terrain reflection. In a video by Chengdu M on Bilibili, a user in a high-altitude area used a Yagi antenna to transmit electromagnetic waves to the peak of a snow mountain. By utilizing the refraction of the mountain, they were able to send the signal very far away. You can use this method with your friends to adjust the direction of your Yagi antenna and transmit signals to each other using the reflection from the terrain.

The greatest distance in the world isn't physical space, but rather the lack of friends nearby with whom to play. Having a friend who is willing to play walkie-talkies with you is truly fortunate.

BI1SFO

Is the staging area located on a hillside or at the foot of the mountain?

nydalu

BI1SFO One on a hillside, one at the foot of the mountain.

palmerxiaobiao

Given the environment and distance to direct frequency, it might be difficult; perhaps installing a repeater at the top of the hill would be a better option.

BI7AFZ

If you're just looking for a handheld radio to use at the top of the mountain, any one will do.

BG4IJK

What are the typical use cases? Are people located on the mountain or at the bottom of it?

If everyone is located at the foot of the mountain and only needs to communicate with a few fixed individuals, without any need for using repeaters or other amateur radio equipment, and if there is good mobile phone signal, then using a public address system over 4G network might be an option. However, since it uses 4G, there may be associated data charges.

BG4IJK

BG4IJK To clarify further: If you have both personal communication needs and a hobby of amateur radio, you can purchase two radios – one for public use and one for amateur radio – to fulfill both purposes.

nydalu

BG4IJK Thank you, dear. My scenario is similar to two families in a rural area using walkie-talkies to communicate.

BG2ELG

If they are all at the top (or if there is no obstruction that prevents visibility), just buy a handheld device.

nydalu

BG2ELG I don't think this will work for me.

WOLF-chiken

While a high-power base station on the mountain top might be fine, it's likely not feasible in the valley. Alternatively, using a repeater at the top of the mountain could solve the problem.

nydalu

WOLF-chiken The chassis is quite expensive, and I don't want to spend too much money.😀

nydalu

Thank you all for your responses. I'm not considering using a repeater or the public network; there are only two of us. I'm located on the hillside, and the other person is in the valley. I want something simple, so I was thinking about using two handheld radios.

daitoudage

nydalu 别想了，没有。

WOLF-chiken

nydalu Looking for a Xiaomi 3188 or 3688, under $500 – great!

Jason

nydalu In reality, if you have a signal, using a regular public radio device and having a backup simulated radio (for emergencies) can be a cost-effective solution (like K5 or K6). You could try using the V band in mountainous areas. You might be able to receive and transmit signals from one location, but not necessarily from another valley, especially if there are several mountains between them.
If you're determined to use a simulator, then setting up a repeater on one of the mountains among you is the most reliable option (and can be relatively low power).

BI1LWR

If you're just looking for something simple, K5 or K6 models in the tens of yuan range should work. If those don't meet your needs, even models costing hundreds or thousands of yuan won't be effective.

However, please use it legally.

henry75

The price of a good handheld radio and a standard car radio is roughly the same.

nydalu

Gintoki Thank you for your thoughtful and professional response.👍I really hope we can become friends. I originally intended to buy the QuanSheng K6 based on online reviews, but I realized it was actually 5W, so I thought that 10W would be a better option. I already placed an order for 2 machines at 223 yuan each, using a coupon, and I'm satisfied with the price. As a beginner, this is my first experience. If it doesn't work out, I'll try your antenna, but I think it might also be sufficient without one. Thank you again!🤝

daitoudage

Gintoki 一个山腰一个山谷，中间隔着山，15km模拟解决不了。

BG8AMG

This shouldn't be about two people messing around with amateur radio; it's for everyday communication. Don't complicate things. If both sides have 4G, use a public network phone – it's the easiest and safest option, and you won't have to worry about your conversations being intercepted or breaking any laws.

nydalu

Jason 据说中继很贵，也没有重要的事，只是玩玩，所以就不考虑中继了，谢谢你。

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