136-174 MHz range in cars: how to legally use, choose equipment and avoid fines

Frequency range 136-174 MHz It has long been an integral part of automobile communications, from taxis and freight to emergency services and amateur walkie-talkie. However, its use in 2026 is strictly regulated by law, and the wrong choice of equipment or violation of the rules of the air can result in fines up to 50 000 rubles for individuals and confiscation of equipment. In this article, we will discuss how to use frequencies legally. 136-174 MHz In the car, what equipment is suitable for different tasks, and why standard walkie-talkie from the store can prove useless (or even dangerous) without the right setup.

Many drivers mistakenly believe that buying a radio with support for this range automatically gives the right to broadcast. In practice, Most of the 136-174 MHz frequencies are assigned to public services. (Emergencies Ministry, police, ambulance), and for civilian users allocated only separate sub-ranges – for example, LPD (148-149.9 MHz) or PMR (155-156 MHz in some countries). Even in the permitted areas, restrictions on the power and type of modulation are required. We will discuss in detail how not to break the law, choosing the right device and configuring it for specific tasks - from communication in a road train to off-road coordination.

1. Legal aspects: what frequencies 136-174 MHz are allowed in cars

In Russia, the range 136-174 MHz pertaining decimeter waves (VHF) regulated Roskomnadzor jointly Mincifre. Most of this spectrum is reserved for:

• 🚨 Security forces: police, FSB, MOE (e.g., police) 146-174 MHz for emergency services).
• 🚛 Commercial transportTaxi, freight (dedicated frequencies for dispatching services).
• 📡 Broadcasting stations: radio, television (e.g., radio, television) 174-230 MHz TV.

For private Only legally available in the car:

• 🔋 LPD (Low Power Device): 148,000–149.975 MHz power-limited 0.01 W (10 MW).
• 🌍 PMR446: 446,00625–446,19375 MHz (Not included in 136-174 MHz, but often used as an alternative)
• 📻 CB radio (CBC): 26,965–27,405 MHz It does not apply to 136-174 MHz, but is allowed without a license.

⚠️ Attention: Use of radios at frequencies 146-174 MHz without the permission of Roskomnadzor is equal to "illegal radio electronic means" (sic). 13.3 RF Code of Administrative Offenses). Penalty for the driver - up to 3,000 rublesFor legal entities, up to 100,000 rubles with confiscation of equipment.

The exception is call-signwho can obtain work permits in the range 144-146 MHz 2-meter range after passing the exam in Russian Amateur Radio Union. The transmitter power is limited to them. 50 W.Registration of equipment is required.

2. Equipment for the range 136-174 MHz: what can be installed in the car

The choice of radio or radio for the car depends on the purpose of use. Consider the main types of equipment, their pros and cons, as well as the legality of use.

2.1. Civil radios (LPD/PMR)

Suitable for short communication over short distances (up to the 5-10 km in the city. Popular models:

• 📱 Baofeng UV-5R:supports 136-174 MHzbut illegally on most frequencies.
• 🚗 Alan 42: certified for LPD, power 0.01 watts.
• 🔋 Motorola T42radio PMR446 (Not 136-174 MHz, but legal without permission)

2.2. Professional radio stations (for commercial vehicles)

Demand. permission of Roskomnadzor and frequency recording. Examples:

• 📡 Kenwood TK-3201: used in taxis, power up to 5 watts.
• 🚛 Icom IC-F3002: suitable for transportation, supports CTCSS/DCS to protect against interference.

2.3. Amateur radio stations (call sign required)

For work in the range 144-146 MHz It'll do.

• 🎤 Yaesu FT-65R: handheld radio with support APRS (coordinate transmission)
• 📻 Alinco DJ-G7: compact model with a wide range.

Type of equipment	Range.	Max. capacity	You need a license?	Approximate price
LPD radio	148-149.9 MHz	0.01 W	No.	2 000–5 000 ₽
PMR446	446 MHz	0.5 Watts	No.	3 000–8 000 ₽
Professional radio	136-174 MHz	5-50 W.	Yes.	15 000–50 000 ₽
Amateur radio station	144-146 MHz	50 W.	Yeah (call sign)	20 000–100 000 ₽

⚠️ Attention: Radios. Baofeng, Wouxun Other Chinese models are often marketed as "unlicensed" but their use on frequencies is often limited to the same range. 146-174 MHz illegally. Roskomnadzor regularly conducts raids to identify such devices.

Does the device have a certificate from Roskomnadzor | Does it support legal ranges (LPD/PMR) | Is it possible to block prohibited frequencies | Is the radio compatible with car power (12B) |->

3. Configuring the radio to the frequencies of 136-174 MHz: step-by-step instructions

If you have been legally authorized to use a specific frequency (for example, for commercial vehicles), you must configure the equipment correctly. Let’s look at the process on the example of a radio Kenwood TK-3201.

3.1. Connecting to the car's power supply

Most professional radios require 12-13.8 DC. Connect through:

• 🔌 Lighter: suitable for radios with power up to 10 Watts..
• 🔋 Direct connection to the ABC: necessarily through the safety lock 5-10 AA.

Use a cable with a cross section at least 1.5 mm2To avoid a drop in tension. Example of connection scheme:

Battery (10A) → Cable (1.5 mm2) → Radio connector
AKB (-) → Car body (mass)

3.2. Programming frequencies

To adjust the frequencies will require:

1. Install software from the manufacturer (for example, Kenwood KPG-89D).
2. Connect the radio to the computer through programming-cable (usually) USB → Mini-DIN).
3. Download a configuration file with allowed frequencies (example for taxi: 156.800 MHz tonal CTCSS 123.0 Hz).
4. Set power limits (e.g., set power limits) 5 watts for urban communications).

Example of a configuration file for Kenwood TK-3201:

[Channel 1]
Frequency=156.8000
CTCSS=123.0
Power=High (5W)
Name=Taxi_Dispatch

3.3. Adjustment of the antenna

The efficiency of communication depends on the antenna. For range 136-174 MHz It'll do.

• 📶 Pitch antenna 1/4λ: length ~50 cmIt is attached to a magnet or bracket.
• 📡 Antenna 5/8λ: length ~1mgives you a win before 3 dB compared to 1/4λ.

Important: CER (standing wave coefficient) should not be higher 1,5. Check him with the device. CER-meter after installation.

1. Correct connection of the antenna (connector) SMA or BNC).

2. Signal level in the radio menu (must be not lower) -100 dB.).

3. Interference from other electronic devices in the vehicle (e.g., LED lamp or video recorders).-->

4. Frequency plans: which channels use taxis, trucks and emergency services

Knowing the standard frequencies will help to avoid interference and accidental hitting of forbidden channels. Below are the current data for Russia for 2026.

4.1. Taxi and car sharing

Most of the traffic control services operate in a range of 156-160 MHz step-by-step 12.5 kHz. Popular frequencies:

• 🚖 156.800 MHz - a common channel for taxis (Moscow, St. Petersburg).
• 🚖 157.450 MHz - Car sharingYandex.Taxi., Citymobil).
• 🚖 159,600 MHz - regional services.

4.2. Trucks and truckers

Truckers use channels with CTCSS (tonal code) to protect against interference:

• 🚛 151.760 MHz (CTCSS 100.0 Hz) stands for Trucker 1.
• 🚛 151.880 MHz (CTCSS 123.0 Hz) is a trucker 2.
• 🚛 156.550 MHz - international channel (Channel)Channel 19 in Europe.

4.3. Emergency services (banned for civilians!)

These frequencies forbidden use without permission:

• 🚨 146,000–148,000 MHz - Emergency Situations, Fire Department.
• 🚔 160,000–174,000 MHz - Police, FSB, ambulance.

Sphere	Frequency (MHz)	Tonal Code (CTCSS)	Max. capacity	Note
Taxi (Moscow)	156,800	123.0 Hz	5 watts	Common channel
Truckers	151,760	100.0 Hz	10 Watts.	Trucker 1.
carshare	157,450	88.5 Hz	5 watts	Yandex.Taxi.
Emergencies Ministry (banned!)	146,500	—	50 W.	Only for services

5. Interferences and solutions: why the radio does not work at 136-174 MHz

If the radio is “silent” or audibility is poor, the reasons may be in the settings and external factors. Let’s look at the typical problems and ways to fix them.

5.1. Interference from other devices

Sources of interference in the vehicle:

• 🔌 LED lampsCheap LEDs create high-frequency tips.
• 📹 Video recorders: Especially with wireless modules.
• 📱 Charging for phones: pulsed power supplies.

Decision:

• 🔧 Install. ferrite on the radio and antenna power lines.
• 🔌 Use it. filter-out for the on-board network (e.g., LC filter).

5.2. Poor hearing at long distances

Reasons:

• 📡 Weak antenna (e.g., standard rubber pin instead of a rubber pin) 1/2λ).
• 🏙️ The relief of the terrain (mountains, high-rises) or urban development.
• ☁️ Weather conditions (rain, fog, impair signal propagation).

Decision:

• 📶 Install the antenna on the roof of the car (at least height) 1.5 m m m m m from the ground.
• 🔋 Increase the transmitter power (if licensed).
• 🛜 Use it. repeater (Signal repeater) to increase range.

5.3. The radio does not turn on or resets the settings

Typical malfunctions:

• 🔋 Nutrition problemsCheck the fuse and voltage on the radio terminals (should be) 12.14 V).
• 🔧 Firmware failure: Refuse the radio through the manufacturer's software.
• 📻 Factory dumping: some radios (e.g., radios) Baofeng) are discharged at low battery charge.

How to check the power of the radio multimeter

1. Connect the black probe to the mass of the car.

2. Red probe - to the plus wire of the radio (after the fuse).

3. The tension must be 12.14 V with the engine running. Less 11.5 V Check the battery or generator.

6. Alternatives to the 136-174 MHz range: what to use if you need a legal connection

If you don't want to risk it with 136-174 MHzConsider legal alternatives for car communication.

6.1. CB radio (27 MHz)

Advantages:

• 🚗 No license required.
• 🌍 Range to 10-30 km (with a good antenna)
• 💰 Cheap equipment (radios from the 3 000 ₽).

Disadvantages:

• 📻 There's a lot of jamming in town.
• 🔊 The sound quality is worse than the VHF/UHF.

6.2. PMR446 (446 MHz)

Advantages:

• 📡 Legally without permission.
• 🔋 Compact radios (e.g., Motorola T82).
• 🏙️ Works better in the city than CB.

Disadvantages:

• 📶 The range of everything 1-5 km.
• 🚫 It is forbidden to connect external antennas (power is limited) 0.5 Watts).

6.3. Mobile messengers with Push-to-Talk (PTT)

Modern alternatives to radios:

• 📱 Zello: works over 3G/4G, range is unlimited.
• 🚛 Walkie-Talkie for iPhone: built-in app from Apple.
• 🌍 TeamSpeak: for group negotiations (for example, in motor races).

Advantages:

• 📶 There's no frequency limit.
• 💰 Free (except for traffic).

Disadvantages:

• 📵 It requires cellular coverage.
• 🔋 It's discharging the phone.

7. Penalties and Liability: What Will Be For Violations of the Rules

Use of frequencies 136-174 MHz without permission qualifies under several articles of the Administrative Code and the Criminal Code of the Russian Federation. We will see what sanctions are facing drivers.

7.1. Administrative responsibility (CAP RF)

Violations and fines:

• 📻 Article 13.3use of electronic means without permission - fine 1 500–3 000 ₽ for individuals, 50 000–100 000 ₽ for legal entities.
• 🚨 Article 13.4: interference with emergency services - fine 30 000–50 000 ₽ Or confiscation of equipment.

7.2. Criminal liability (Criminal Code of the Russian Federation)

In severe cases (for example, if interference led to the disruption of the operation of the Ministry of Emergency Situations), it is possible to initiate a case for:

• 📡 Article 272Unlawful access to computer information (in the case of digital communication systems).
• 🚔 Article 273Creating, using and distributing malware (if the radio has been modified to circumvent restrictions).

7.3. How to avoid fines

Advice:

• 📋 Always keep it with you. copy of Roskomnadzor's authorization (If you use professional equipment)
• 🔍 Check that the radio cannot transmit at prohibited frequencies (some models, for example, the radio). Baofeng UV-5RThey require a software lock.
• 🚗 Do not use a walkie-talkie while moving - it is distracting from control and can be regarded as a "distract" "using the phone while driving" (final) 1 500 ₽).

⚠️ Attention: Roskomnadzor actively monitors the air with the help of positioning-stations. If your radio is caught on a prohibited frequency, you will receive a notice of a fine by mail (even if the inspector did not stop the car).

FAQ: Frequent questions about 136-174 MHz frequencies in cars

❓ Can I use the Baofeng UV-5R in a car without a license?

Nope. Baofeng UV-5R range 136-174 MHzbut it is used on most frequencies of this range. illegally without permission from Roskomnadzor. Exception: channels LPD (148-149.9 MHz) but the power shall not exceed 0.01 W.

If you bought it. Baofeng For communication in the car, we recommend:

1. Block prohibited frequencies through software (e.g., CHIRP).
2. Use the radio only on legal ranges (e.g., PMR446if the model supports 446 MHz).

❓ Which antenna should I choose for a 136-174 MHz radio?

For range 136-174 MHz optimal antennas:

• 1/4λ (four-wave): length ~50 cmEasy to install, CSV ~1.5.
• 5/8λ: length ~1mgives you a win before 3 dBBut it requires a good grounding.
• Flexible pin: convenient for parking, but loses to 50% efficiency Compared to a rigid antenna.

Recommended models:

• Diamond NR770HB (5/8λ, CER < 1.2).
• Sirio Turbo 27/136 (universal for CB and VHF).

Important: the antenna must be adjusted to a specific frequency. For example, for 156.8 MHz The length of the quarter wave antenna should be 47.5 cm.

❓ How to get permission to use the frequency of 136-174 MHz?

For legal use of frequencies in the range 136-174 MHz need to:

1. Determine the purpose of use (e.g., "Fleet control" or "Amateur radio").
2. Apply for rkn.gov.ru