If your radio or portable radio loses signal 90th wave, the problem is most often associated with the wrong choice of range - FM or AM. In 90% of cases, “wave 90” means frequency 90.0 FM (megahertz), but in some regions of Russia and the CIS this figure may indicate meters in MW/LW band (e.g. 90 m ≈ 3.33 MHz on long waves). Before setting up, check whether the indicator is lit FM on the receiver panel. If not, switch manually, as automatic scans often miss weak stations.

Reception failures on 90 FM also arise due to geographical features: in Moscow and St. Petersburg it broadcasts on this frequency Radio Energy, in Yekaterinburg - Europe Plus, and in remote areas there may be no signal at all. Below we'll look at how to accurately determine the range, find the current frequencies for your region, and fix common reception problems - from a bad antenna to electromagnetic interference.

FM or AM: how to understand which range is meant by “wave 90”

The term "90 wave" is ambiguous, as it can refer to two different measurement systems:

  • 📡 90.0 FM — frequency in megahertz (MHz), the standard range for music stations. Used in most modern radios and smartphones.
  • 📻 90 meters - wavelength in Average (SV) or Long (DV) range. Corresponds to a frequency of ~3.33 MHz (calculated by the formula: 300,000 km/s ÷ 90 m = 3.33 MHz).

To determine the correct range:

  1. Look at the receiver scale: if the divisions go through 0.1 or 0.2 (for example, 88.0 → 88.2 → 88.4), this FM.
  2. If the scale shows values from 150 kHz to 3 MHz in steps of 9–10 kHz, this is NE/LW.
  3. In modern cars (after 2010) AM band often hidden in menus BAND or AM/FM.
📊 What range do you usually listen to?
FM
AM (NE/LW)
I don't know the difference
I use internet radio

⚠️ Attention: In Russia, since 2020, most stations have switched to FM, and AM (especially DV) is used primarily for rebroadcasting state channels (for example, Radio Russia on 261 m / 1152 kHz). If you're looking for music or entertainment, start with 90.0 FM.

The 90.0 FM frequency is distributed among different broadcasters depending on the region. Below is a table of current stations for major cities:

City Radio station Format Transmitter power
Moscow Radio Energy Dance, pop music 10 kW
St. Petersburg Europe Plus Hits, entertainment 5 kW
Yekaterinburg Europe Plus Hits, entertainment 4 kW
Novosibirsk DFM Electronic music 3 kW
Kyiv Kiss FM Pop, R&B 2 kW

To check the current station in your city:

  1. Use online services like RadioMap or FMScan.
  2. Enter the following query in Google search: radio station on 90 FM [your city].
  3. In mobile applications (for example, TuneIn Radio) filter stations by frequency.
💡

If you can't pick up a station on 90 FM, try similar frequencies: 89.8 FM or 90.2 FM. Some transmitters operate with a shift due to technical features.

Step-by-step radio tuning on wave 90 in a car

The instructions are suitable for most radios Pioneer, Sony, JVC, as well as standard systems in cars Toyota, Hyundai, Kia etc.

☑️ Radio tuning to 90 FM

Done: 0 / 5

If automatic search (SCAN) passes 90 FM:

  • 🔍 Check if the genre filter is installed in the settings (some models have an option PTY — Program Type).
  • 📶 Make sure the antenna is connected and not damaged. In cars, the antenna is often built into the rear window (heating filaments).
  • 🔋 If the radio receives power from the cigarette lighter, check the voltage with a multimeter - when it drops below 11V, the sensitivity of the receiver drops.

⚠️ Attention: In radios with RDS (data system) station name may not be displayed if the signal is weak. In this case, try manually adjusting the frequency in 0.05 MHz steps (for example, 89.95 FM or 90.05 FM).

Why 90 FM doesn’t pick up: 5 main reasons and solutions

If you hear noise or silence instead of music on the 90th wave, the problem lies in one of the following factors:

Reason Signs Solution
Weak transmitter signal Crackling, intermittent sound Use an external antenna or signal booster
Electromagnetic interference Background 50 Hz (buzz), clicks Check the grounding of the radio, disconnect other devices
Tuner malfunction Can't pick up any stations Diagnostics in the service or replacement of the unit
Invalid region in settings Auto search misses 90 FM Reset settings to factory defaults (RESET)
Interference from LTE/4G Noise when approaching cell towers Install a noise filter (for example, LTE-filter)

For diagnostics:

  1. Try listening to 90 FM on another device (smartphone, portable radio). If there is no signal there either, the problem is in the transmitter or the terrain.
  2. Connect an external antenna to the radio (even a piece of wire 1–1.5 m long will improve reception).
  3. Check if there are any sources of interference nearby: chargers, LED lamps, wireless chargers.
How to test an antenna with a multimeter

Connect the multimeter probes to the center conductor and braid of the antenna cable. The resistance should be between 50–75 ohms. If it shows “open” (OL), the cable is damaged.

Setting up 90 FM on a smartphone (Android/iOS)

Modern smartphones are rarely equipped with FM receivers, but some models (for example, Samsung Galaxy until 2020, Xiaomi Redmi) support radio via built-in chip. To do this:

  • 📱 Install the application NextRadio (Android) or TuneIn Radio (iOS/Android).
  • 🎧 Connect your headphones - they act as an antenna.
  • 🔍 Manually enter the frequency 90.0 FM (auto search may not work).

If the radio does not work:

  • Check if your model supports an FM receiver (the list is on the website NextRadio).
  • Update your phone's firmware - new versions of Android sometimes disable access to the chip.
  • Use online radio via mobile internet (for example, Radio Russia in the application Yandex Music).

⚠️ Attention: The iPhone (except for models for the Indian market) does not have a hardware FM receiver. An alternative is streaming radio via 3G/4G, but this consumes data (about 60 MB/hour).

How to improve 90 FM reception in a car: 3 working methods

If the station on wave 90 is receiving interference, try the following methods:

  1. Signal Booster:

    Devices like Bowei X5 or Terk FM+ connect between the antenna and the radio. The signal is amplified by 10–20 dB. Cost: from 1500 rubles.

  2. Antenna replacement:

    Standard "whip" antennas often lose efficiency. Replace with an amplified model (eg Pro.Logic PL-ANT10>). For vehicles with tinting, use glass suction cup antennas.

  3. Interference shielding:

    Wrap the antenna cable with a ferrite ring (available in radio parts stores). This will suppress high-frequency interference from the vehicle's on-board systems.

For a temporary solution:

  • 🚗 Park in a different place - buildings, bridges and power lines screen the signal.
  • 📡 Unwind the antenna cable around the cabin (if it is removable).
  • 🔄 Reboot the radio (turn off the power for 30 seconds).
💡

The most common cause of poor 90 FM reception is a damaged antenna cable. Check it at bends and connectors: oxidation or breakage of the braid leads to signal loss.

90 meters (AM band): how to tune and what to listen to

If by "wave 90" we mean 90 meters (≈3.33 MHz), we are talking about Medium (SV) or Long waves (LW). In this range they broadcast:

  • 📰 News stations: “Radio Russia” (261 m / 1152 kHz), “Mayak” (549 m / 549 kHz).
  • 🎵 Retro radio: “Radio 7 on seven hills” (Moscow, 207 m / 1458 kHz).
  • ☢️ Emergency channels: in some regions, EMERCOM alerts are broadcast.

To configure:

  1. Switch the receiver to AM or MW (Middle Wave).
  2. Rotate the tuning knob until you hear the station. On the CB, the step between frequencies is 9 kHz (for example, 531, 540, 549 kHz).
  3. Use an external ferrite antenna (included with many portable radios).

⚠️ Attention: At night, the reception range in the NE/LW increases by 2–3 times due to the reflection of the signal from the ionosphere. This can either improve or degrade the quality due to the overlap of waves from different transmitters.

FAQ: Frequently asked questions about tuning the 90th wave

Why is there sound on 90 FM but no station name (RDS)?

This occurs due to a weak signal or lack of support RDS in your radio. Try:

  • Install an external antenna.
  • Manually adjust the frequency (for example, 89.9 or 90.1 FM).
  • Check in the radio menu whether it is enabled RDS (option may be called AF or TA).
Is it possible to listen to 90 FM without an antenna?

Technically yes, but the quality will be poor. As a temporary antenna you can use:

  • A metal ruler or wire 75 cm long (optimal for FM).
  • Headphone cable (connect to the antenna socket via an adapter).
  • A piece of foil attached to the cassette player (grounding).

For permanent use, buy an active antenna with an amplifier.

How to find 90 FM in Europe or Asia?

In most countries in Europe and Asia, the FM frequency grid is shifted relative to Russia. For example:

  • In Germany 90.0 FM may occupy WDR 2 or HR3.
  • Broadcasts on 90 FM in Turkey Kral FM.
  • In Thailand 90 FM is Chill FM (Bangkok).

Use services like Radio Garden to search for stations by geolocation.

Why did I stop picking up 90 FM after replacing the radio?

Probable reasons:

  1. The new radio does not support RDS or has a different tuner standard (for example, only FM HD).
  2. The antenna adapter is not connected correctly (check the connectors ISO or Motorola).
  3. The wrong region is selected in the settings (for example, USA instead of Europe).

Solution: reset the radio settings to factory settings and repeat the auto search.

How to record a program from 90 FM on your phone?

Methods:

  • Use recorder apps (eg. FM Radio Recorder for Android) with support for recording from an FM chip.
  • Connect the radio to your phone via AUX or Bluetooth and record sound with a standard voice recorder.
  • For PC: Connect the radio to the sound card via Line-In and write in Audacity.

⚠️ Please note that recording the broadcast may violate copyright (Article 1274 of the Civil Code of the Russian Federation).