Racing Frequency Guide: NASCAR, IndyCar & Motorsports
Knowing where to find racing frequencies is essential for getting the most out of your scanner on race day. This guide covers how to find driver communications, broadcast networks, and race control for NASCAR, IndyCar, and other motorsports.
Racing Frequency Basics
Most professional motorsports in North America use UHF frequencies in the 450-470 MHz range. This includes NASCAR, IndyCar, IMSA, and most regional series. Understanding how these frequencies are organized helps you find what you want to hear.
Team/Driver Communications
454-464 MHz typical
Direct communication between drivers and crew chiefs. Each team operates on unique frequencies. These change periodically for competitive reasons.
Spotter Channels
460-470 MHz typical
Dedicated frequencies for spotters to communicate traffic and positioning to drivers. Usually separate from main team channels.
Radio Networks (MRN/PRN)
450-454 MHz typical
Professional race broadcast with commentary, interviews, and analysis. Great for understanding race context and strategy.
Race Control
460-465 MHz typical
NASCAR officials coordinate cautions, pace car, penalties, and race management. Hear decisions before they're announced.
Need a Scanner?
Before diving into frequencies, make sure you have the right equipment. Any scanner covering 450-470 MHz will work for racing.
How to Find NASCAR Frequencies
NASCAR driver and team frequencies can be found through several sources. We recommend checking multiple sources before race day since frequencies can change.
1. Official Race Programs
The most reliable source for current frequencies. NASCAR race programs sold at tracks include a frequency guide with all drivers, teams, and race control channels. Usually costs $10-15 and includes other useful race information.
Tip: Buy the program when gates open—they sometimes sell out.
2. RadioReference.com
The largest database of radio frequencies in North America. Search for your track name to find user-submitted frequency lists. Free registration required for some features.
Tip: Check the "last verified" date—older entries may be outdated.
3. Track Information Booths
Many NASCAR tracks have fan information areas that provide frequency sheets on race day. Racing Electronics rental locations also often share frequency lists.
Tip: Ask about any last-minute frequency changes.
4. Scanner Close Call Feature
Scanners like the Uniden BC125AT have "Close Call" RF capture that automatically detects active nearby transmissions. Useful for finding frequencies at the track without a pre-programmed list.
Tip: Use Close Call during practice sessions to build your frequency list.
MRN & PRN Radio Networks
The Motor Racing Network (MRN) and Performance Racing Network (PRN) provide professional radio broadcasts of NASCAR events. These frequencies are more consistent than team channels and offer commentary similar to TV coverage.
Motor Racing Network (MRN)
Broadcasts NASCAR Cup, Xfinity, and Craftsman Truck Series races from most tracks. Known for detailed pit reporting and driver interviews.
Coverage includes:
- Lap-by-lap race commentary
- Pit road reports and interviews
- Post-race winner interviews
- Pre-race driver interviews
Performance Racing Network (PRN)
Broadcasts NASCAR events from Charlotte Motor Speedway and several other tracks. Similar format to MRN with professional commentary.
Track-specific frequencies available at:
- Charlotte Motor Speedway
- Darlington Raceway
- Atlanta Motor Speedway
- Several other tracks
Finding network frequencies: MRN/PRN frequencies vary by track but are published in race programs and on RadioReference.com. They're usually in the 450-454 MHz range and remain consistent for each venue.
IndyCar Frequencies
IndyCar uses similar UHF frequencies to NASCAR, typically in the 450-470 MHz range. The same scanner that works for NASCAR will work for IndyCar events.
IndyCar Communication Structure
- Driver/Engineer: Primary strategy and car feedback
- Spotter: Track position and traffic
- IMS Radio Network: Professional broadcast coverage
- Race Control: Officials and safety communications
Finding IndyCar Frequencies
IndyCar frequencies are published on RadioReference.com and in event programs. The Indianapolis 500 program includes comprehensive frequency guides. IndyCar team frequencies tend to be more consistent than NASCAR throughout the season.
Other Motorsports Series
IMSA Sports Cars
WeatherTech Championship and other IMSA series use UHF frequencies similar to NASCAR. Team frequencies are available on RadioReference.com.
World of Outlaws
Sprint car and late model racing use UHF frequencies. Local track-specific frequencies vary; check RadioReference for your venue.
NHRA Drag Racing
NHRA teams use UHF for crew communications. Track announcer and race control frequencies available in event programs.
Local Short Tracks
Regional and local tracks vary widely. Check track websites, programs, or use Close Call feature to find active frequencies on race night.
Programming Your Scanner
Once you have your frequency list, programming your scanner is straightforward. Here's the basic process:
- Gather your frequencies
Collect driver, race control, and broadcast frequencies from race programs or RadioReference.com
- Organize by priority
Put your favorite driver and MRN/PRN on easily accessible channels
- Program channels
Enter frequencies into your scanner's memory banks (consult your scanner manual for specific steps)
- Label channels
Most scanners allow alphanumeric labels—use driver names or "MRN" for easy identification
- Test before race day
Verify your programming during practice or qualifying sessions
For detailed programming instructions, see our scanner programming guide or consult your scanner's user manual.
Tips for Race Day
Arrive Early
Use practice and qualifying sessions to verify your frequencies and discover any changes.
Bring Backup Frequencies
Teams sometimes switch frequencies during events. Have alternatives ready.
Monitor Multiple Channels
Scan between your driver, race control, and MRN/PRN for complete race picture.
Use Priority Scan
Set race control or your favorite driver as priority channel to catch important communications.
Note Working Frequencies
Keep a log of frequencies that work—useful for future events at the same track.
Bring Extra Batteries
Full race days drain batteries quickly. Bring spares or a portable charger.
Frequently Asked Questions
Where can I find NASCAR driver frequencies?
Driver frequencies are published in official NASCAR race programs sold at tracks, available on RadioReference.com databases, and sometimes listed on team websites. Frequencies may change between races, so always verify before an event. The MRN/PRN broadcast frequency is consistent and always available.
What frequency range does NASCAR use?
NASCAR primarily uses UHF frequencies in the 450-470 MHz range for team communications. The MRN and PRN radio networks broadcast on specific frequencies that vary by track but are typically in the 450-454 MHz range. Any scanner covering this range can receive racing communications.
Can I listen to IndyCar on a NASCAR scanner?
Yes, IndyCar uses similar UHF frequencies in the 450-470 MHz range. Any scanner that works for NASCAR will also work for IndyCar events. The same applies to IMSA, NASCAR Xfinity, and most professional motorsports in North America.
Do racing frequencies ever change?
Teams occasionally change frequencies between races or even during an event for strategic reasons. The MRN/PRN broadcast frequencies and race control frequencies are more consistent. Always verify frequencies before race day using current sources like RadioReference.com or the official race program.
How do I find frequencies for local short tracks?
Local tracks often publish frequencies in their programs or on their websites. RadioReference.com has databases for many regional tracks. You can also use the Close Call feature on scanners like the BC125AT to automatically find active frequencies at the track.
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