LPD channels

The LPD (Low Power Device) channels are dedicated for civilian communication within the UHF frequencies, as much as PMR446, another free band. LPD channels are located in the frequency range 433.075–434.775 MHz and include 69 channels with a step of 25 kHz. You can see them in the table below.

Many countries allow the channels to be used without a license, but you should meet some requirements. Usually, using walkie-talkies is only allowed with a built-in low-power antenna (no more than 0 dBi). The maximum power of the radio mustn’t exceed 10 mW. In many countries, the CTCSS or DCS subtones are permitted in the LPD range. As soon as LPD is a very common band, subtones are useful.

The high properties of the radio waves on LPD compensate for the limitations of the walkie-talkie in power. They have good passability, so this range is effective in the city and in the forest. In open fields, a transmission range of about 10 km can be expected.

The communication range in the field is about 10 km (6.21 miles), and on the road – 500 m to 1 km (0.31–0.62 miles).

In nature, the range is common amongst tourists, and in the city, it can be used by business: taxi drivers, waiters, hotel workers, security guards, builders. On city roads, you can expect communication ranges from 500 m to 1 km. Walkie-talkies of the LPD range are always compact and lightweight devices with a small antenna. They are easy to use and most often run on li-ion batteries or AA batteries.

LPD channels table

Channel Frequency, MHz Channel Frequency, MHz Channel Frequency, MHz
1 433.075 24 433.65 47 434.225
2 433.1 25 433.675 48 434.25
3 433.125 26 433.7 49 434.275
4 433.15 27 433.725 50 434.3
5 433.175 28 433.75 51 434.325
6 433.2 29 433.775 52 434.35
7 433.225 30 433.8 53 434.375
8 433.25 31 433.825 54 434.4
9 433.275 32 433.85 55 434.425
10 433.3 33 433.875 56 434.45
11 433.325 34 433.9 57 434.475
12 433.35 35 433.925 58 434.5
13 433.375 36 433.95 59 434.525
14 433.4 37 433.975 60 434.55
15 433.425 38 434 61 434.575
16 433.45 39 434.025 62 434.6
17 433.475 40 434.05 63 434.625
18 433.5 41 434.075 64 434.65
19 433.525 42 434.1 65 434.675
20 433.55 43 434.125 66 434.7
21 433.575 44 434.15 67 434.725
22 433.6 45 434.175 68 434.75
23 433.625 46 434.2 69 434.775

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