Most racing series use designated commercial or licensed frequencies for team communication. Many teams use DOT or licensed business frequencies depending on the series.

Every complete system we ship arrives programmed and matched for the series you run, so there is no frequency guesswork in the paddock at 6 a.m.

Range depends on antenna placement, radio power and track conditions. Most racing communication systems (4–5 watt) easily cover the distance of a typical road racing circuit. The rule of thumb is 1 watt per mile.

The factors that move range the most:

• Radio power output
• Track size and layout
• Elevation changes
• Antenna type and placement

Yes. Many teams configure their communication systems so that multiple cars operate on the same frequency during endurance racing.

SRC also offers team owner headsets that can run two radios on one headset — useful when you are managing two cars or monitoring race control alongside your own team.

Both work well depending on the racing environment. Digital systems are typically used in road racing and boat racing, while analog is common in circle track and drag racing.

If you need 100% clarity with no static, digital is the only way to go.

The driver communicates with the crew through a two-way radio connected to a helmet communication kit. The chain looks like this:

Driver helmet → Radio → Crew radio → Crew headset

When the driver presses the push-to-talk button, the radio transmits their voice to the pit crew, who respond immediately through their own headset and radio.

A race car generates extreme noise — engine, wind, tire and track. Without a properly placed noise-canceling microphone, the radio transmits mostly background noise instead of speech.

A professional racing microphone must sit within about ½ inch of the driver's lips. At that distance it captures your voice clearly while rejecting everything around it. Mic placement is the single most common cause of "my radio sounds terrible" calls.

Consumer radios usually fail in motorsports because they lack:

• Audio clarity in high noise
• Durability under heat and vibration
• Noise-canceling capability
• Reliable signal strength across a full circuit

Professional racing systems solve this with commercial-grade radios and headsets built for the environment.

A full driver-to-crew setup normally includes:

• Two-way racing radios — digital or analog, the core of the system
• Driver helmet kit — helmet speakers, noise-canceling mic, wiring harness
• Push-to-talk (PTT) — mounted on the steering wheel, dash or shifter so hands stay where they belong
• Crew headsets — over-the-head or behind-the-head, with hearing protection
• Antenna and in-car harness
• Charger — single or multi-bank for a fleet

Yes. Tell us what radios you already own and we will match new helmet kits and headsets to them — same frequencies, same audio. A new driver joining mid-season is a call we take every week.

Outside peak holidays, we generally ship orders received before 2 p.m. PST the same day. Expedited orders (Next-Day, 2-Day) must be received by 1 p.m. to make carrier pickup.

We make every effort but cannot guarantee same-day shipping. You will receive a tracking number by email as soon as your order ships.

Shipping is calculated at checkout — add your items to the cart and you will see the available methods and prices before you pay.

Ground shipping is free on orders over $200.

Yes. We ship throughout the US and overseas. Enter your address at checkout to see the available international methods and rates.

A tracking number is emailed to you when the order ships. Carrier delivery windows are estimates and are not guaranteed.

Once a package has been delivered correctly to your address, SRC is no longer responsible for the order. If you are concerned about a delivery, ask the carrier to require a signature.

Sales tax applies only to orders shipped within California.

Your card is charged within 24 hours prior to shipment of your items.

Contact us within 72 hours of receiving the product and we will make it right — call (805) 650-7223 or email sales@sampsonracing.com.

Call or email us before shipping anything back so we can issue a return authorization and confirm the right address. Have your order number ready.

Credits usually take 7–10 business days from the time we receive your returned items.

Call us. Tell us the car, the series and how many people need to hear each other, and we will spec it.

SRC does in-house communication system design and technical support — radios, wireless headsets, noise-canceling mics, PTT controls, antennas, cabling, Bluetooth and intercoms — built around how your team actually works rather than sold as loose parts.