Last Updated: 3/24/2025

This page will be updated with information about the next race, spotter guide info, and updated frequency details as I am able to come across it. Use the form on the right to get emailed when this page is updated with new frequencies!

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Next Race: Acura Grand Prix of Long Beach

Apl 11-13 | Spotter’s Guide (will be linked once available)

Learn to Program

Learn to Scan

DOWNLOAD Frequencies

Current Version: Thermal.25.1

Bearcat Download Files:

BEARCAT "TONE" Download "bc125at_ss" Config File
BEARCAT "NO-TONE" Download "bc125at_ss" Config File

Chirp/Baofeng Files:

CHIRP/Baofeng "TONE" CSV File with Tones included
CHIRP/Baofeng "NO-TONE" CSV File without Tones

Explain: "Tone" vs "No-Tone" files: (click-to-expand)

The Sql Tone listed in the table below can help reduce extra transmissions on the scanner. But, if the tone is wrong, can also prevent you from ever hearing your driver. If you don’t know how to turn this feature off on your scanner, and don’t want to learn- get the no-tone version. This will ensure you hear everything on the frequency. Or- follow this quick tutorial on the right about how to change/remove tones while at the track in case the config file is wrong.

Bearcat Tone Tutorial (click-to-expand)

If you are using the Bearcat BC125AT and you find that you can't hear a driver, it could be one of two things.

First, check the secondary frequency for the driver. They might have had to switch to their secondary frequency for some reason. 

If you don't hear them on that frequency either, you might have a tone-squelch problem.

Tone-squelch is designed to help keep out all transmissions that don't include a particular additional "unbearable" tone or digital signal. This prevents little kids on walkie talkies, drive-thru speakers, and other random things from causing static or other noise from being a distraction to you or the race car drivers. It's a great feature. But if it has been programmed incorrectly, miscopied by me, or if the team had to change it after you programed your scanner, you will only have silence on that frequency. Here are two ways to fix it.

1- remove the squelch, and hear everything again:

  • Go to the channel that isn’t working
  • Press Func and then Pgm/E
  • Scroll down to Set CTCSS/DCS, and press Pgm/E
  • Scroll up to Off and press Pgm/E
  • Scroll down to Exit and press Pgm/E
  • and now it’s turned off, and you’ll hear everything on that frequency!

2- put the scanner in search mode, note the found tone, and reprogram it. note- this will temporarily open it up, as above, but lead you to locking it back down again. 

  • Go to the channel that isn’t working
  • Press Func and then Pgm/E
  • Scroll down to Set CTCSS/DCS and press Pgm/E
  • Scroll down to CTCSS/DCS Search and press Pgm/E
  • Scroll down to Exit and press Pgm/E
  • Listen and watch your display. When there is a transmission between the driver and pit, you will see the Tone information flash below the frequency number on the display of the scanner. Remember this information or write it down. Also, note if the number has a decimal in it or not.
  • Now press Func and then Pgm/E
  • Scroll down to Set CTCSS/DCS and press Pgm/E
  • If the number that was flashing had a decimal in it, select CTCSS, if it did not have a decimal in it, select DCS, and press Pgm/E
  • Scroll through the list of all those numbers until you find the one that was flashing and press Pgm/E
  • Scroll down to Exit, and press Pgm/E
  • You have now reprogrammed the Tone for that channel to the correct one for your driver.

This is the current list of frequencies based on the Thermal Club Spotter Guide.

IndyCar Frequencies

 

# Driver Primary Freq Primary Tone Backup Freq
2 Josef Newgarden 464.9250 DCS 271 469.6000
3 Scott McLaughlin 466.8250 DCS 223 464.6750
4 David Malukas 463.0125 DCS 465 467.6875
5 Pato O’Ward 469.4375 DCS 152 464.4875
6 Nolan Siegel 462.7875 DCS 431 463.8375
7 Christian Lundgaard 464.4625 DCS 205 464.5625
8 Kyffin Simpson 457.0250 DCS 516 461.1125
9 Scott Dixon 456.6500 DCS 125 461.1875
10 Alex Palou 467.0375 DCS 036 464.0375
12 Will Power 466.2125 DCS 371 464.6000
14 Santino Ferrucci 467.0750 DCS 411 458.9125
15 Graham Rahal 466.9125 DCS 032 468.8875
18 Rinus VeeKay 467.2000 DCS 132 469.9375
20 Alexander Rossi 469.1125 DCS 734 457.6750
21 Christian Rasmussen 469.9250 DCS 466 465.9625
26 Colton Herta 464.3000 DCS 026 463.2125
27 Kyle Kirkwood 468.4875 DCS 025 467.8875
28 Marcus Ericsson 469.3000 DCS 115 469.7500
30 Devlin DeFrancesco 468.2625 DCS 131 469.2625
45 Louis Foster 466.3125 DCS 506 467.8375
51 Jacob Abel 463.6000 DCS 162 464.9375
60 Felix Rosenqvist 461.0750 DCS 143 454.5000
66 Marcus Armstrong 452.8000 DCS 261 461.7250
76 Conor Daly 458.1000 DCS 612 463.9375
77 Sting Ray Robb 459.6500 DCS 627 454.6500
83 Robert Shwartzman 461.1625 461.3375
90 Callum Ilott 462.8375 466.1625

 

Indy NXT Frequencies (Scanned at St. Pete)

 

No. Driver Frequency Tone
Indy NXT 2 Murray 453.4125​ CTCSS 103.5Hz
Indy NXT 3 Escotto 463.1625​ DCS 311
Indy NXT 9 Browne 452.7000​ DCS 051
Indy NXT 10 Koolen 466.1000​ DCS 072
Indy NXT 11 Allaer 460.3000​ DCS 445
Indy NXT 14 Pierson 460.7000​ DCS 431
Indy NXT 16 Smith 460.2000​ DCS 132
Indy NXT 17 Hedge 454.7875​ DCS 152
Indy NXT 18 Johnson 460.8000​ DCS 226
Indy NXT 76 Collet 460.6125​ DCS 071
Indy NXT 24 Floersch 460.4000​ DCS 412
Indy NXT 26 Hughes 469.5375​ DCS 606
Indy NXT 27 deAlba 464.5375​ DCS 612
Indy NXT 28 Hauger 462.9125​ DCS 343
Indy NXT 29 roe 469.8375​ DCS 271
Indy NXT 38 Deegan 460.9000​ DCS 074
Indy NXT 39 Aron 460.1000​ DCS 306
Indy NXT 40 Miller 465.0875​ DCS 315
Indy NXT 48 Missig 459.4500​ DCS 205
Indy NXT 99 Rowe 460.0125​ DCS 114

 

Bonus Frequencies (Scanned at St. Pete)

 

Race Control 1 468.8250​ CTCSS 103.5Hz
Race Control 2 467.0125​ DCS 032
Safety 451.6875​ DCS 365

 

 

Radio 450.9000​ Search
Radio/PA 450.9250​ Off

 

Fox TV Broadcast 450.3875​ Off
Fox TV/Production 450.3000​ Off
Fox TV Truck 455.2000​ DCS 114

 

 

IndyCar Frequency Guide – Use this guide to setup your scanner for the first time

*NOTICE: If I come across bonus frequencies such as IMS radio network, TV broadcast, safety crews, race control, or even track PA systems, I include them as well. However, it’s important to note that these frequencies are not guaranteed to work and are often updated multiple times between when I first publish them and race day. If you find a frequency that I haven’t included, please let me know! If they don’t work- they may be retired, or they may be backups that weren’t needed. A quiet channel is not “proof” of a frequency no longer in use. 

DOWNLOAD Frequencies

Current Version: Thermal.25.1

Bearcat Download Files:

BEARCAT "TONE" Download "bc125at_ss" Config File
BEARCAT "NO-TONE" Download "bc125at_ss" Config File

Chirp/Baofeng Files:

CHIRP/Baofeng "TONE" CSV File with Tones included
CHIRP/Baofeng "NO-TONE" CSV File without Tones

Additional thanks & references:

I do my best to cite and link to any information I find, and thank all those in the community to help contribute to this hobby. Once practices start in Indianapolis, I also try to scan and verify what I can and add anything I can find to the list. Please be sure to thank all contributors to the hobby by dropping by their websites as well!