Stepping into the world of radio communications can feel like tuning into a frequency that’s all noise and no signal. If you’ve spent any time in Facebook off-roading or overlanding groups, you’ve likely seen a mountain of conflicting advice about which “handheld” to buy or which channels are “free” to use. The truth is, there is a lot of misleading information out there, and in Canada, “winging it” can lead to heavy fines or, worse, significant safety risks.

Radio types and options

FRS and GMRS (The “Blister Pack” Radios)

These are the radios you typically find at big-box stores in “blister packs.” While they’re cheap and easy to use, they have major limitations for vehicle-based use.

The Reality Check: Most “blister pack” radios include both FRS and GMRS frequencies.
FRS (Family Radio Service): Channels 8–14 are strictly FRS and are limited to very low power (0.5W), making them nearly useless inside a metal vehicle.
GMRS (General Mobile Radio Service): Channels 1–7 and 15–22 are the GMRS frequencies that allow for higher power (up to 2W in Canada).
Performance: Even at 2W, using these handhelds inside a vehicle acts like a Faraday cage, severely cutting your range to the point of being unreliable for a moving convoy.
The Canadian Trap: In the US, high-power (50W) GMRS stations with removable antennas are legal with a license. In Canada, radios with removable antennas and high power (5W+) are illegal for GMRS use; you must use purpose-built, ISED-certified gear.

CB / GRS (Citizen’s Band)

Usage: Once the trail standard, CB is rarely used today.
Legality: No license is required.
Power Limits: Maximum power is 4W for AM and 12W for SSB.

Commercial Radio (LADD, RR, AB-Wide)

These are “life-safety” frequencies used by industrial traffic in Alberta and BC.

LADD & Resource Roads (RR): Used by logging and mining trucks for location call-outs.
Licensing: You must have a Land Mobile Radio License to transmit. There is no test/exam for this license, but does require yearly renewal (approx $50/year). ISED-certified ham radios will typically allow you to program the frequency into your radio for receive (listening) but block the ability to transmit.
How to License: Apply for a Light-Licensed Mobile license via the ISED Spectrum Management System. To be legal in AB and BC, ensure your license includes:
- Appendix B: For LADD 1 and 4 (LADD 2 and 3 are prohibited in Alberta).
- Appendix RR: For the 35 Resource Road channels.
- Appendix 1: For Alberta-Wide and Alberta-Open frequencies.

Amateur (Ham) Radio

The gold standard for convoys and long-range communication via repeaters.

Requirement: You must be licensed (Basic, Basic with Honours, or Advanced).
Restriction: A ham license does not allow you to transmit on commercial frequencies such as LADD or RR.
Training: There are many online resources for learning about ham radio, and local ham radio clubs often have in-person and/or online training.

Satellite & Off-Grid Data

When the radio can’t reach a repeater, satellite is your lifeline.

Satellite Messengers: Devices like the Garmin InReach or Zoleo provide global SOS and texting capabilities. Some newer mobile phones also support satellite-based text messaging in emergencies.
Starlink: High-speed internet for the backcountry, though it requires a reliable power source and a clear sky.

Why the Rules Matter: Splatter and Life Safety

Using uncertified gear can cause Harmonic Splatter—”ghost” signals that can interfere with life safety LADD / Resource Road calling frequencies, or emergency and aircraft frequencies. This means you can effectively “deafen” a loaded logging truck calling out a road marker location to other traffic, or impact STARS air ambulance or SAR teams during a rescue.

The Legal Hammer: Transmitting without a license or using non-certified gear can result in $5,000 fines, equipment seizure, and a court appearance. If the radio equipment is mounted and wired to a vehicle, “equipment seizure” may include the radio AND the vehicle…

Safety Code 6: Don’t “Cook” Yourself

RF energy causes thermal heating of human tissue.

Antenna Placement: A 50W mobile antenna mounted on a hood or bull bar puts occupants at risk of exceeding federal exposure limits.
The Best Spot: The Roof. The metal acts as a shield, pushing energy up and away from the cab.
Tuning: An untuned antenna causes energy to reflect back into your dashboard, turning your electronics into a radiator exactly where you sit.

But… but… What about those cheap radios on Amazon that can “do everything”?!

Purely from a technical perspective, yes – there are cheap radios on Amazon, Ali Express and other online stores that will allow you to program many frequencies into the radio. These include FRS/GMRS frequencies, amateur radio frequencies, air frequencies, LADD and RR frequencies and more. However, doing so is not legal and carries a much greater likelihood of causing the Splatter and Life Safety issue mentioned above.

As an analogy, you can technically do a vehicle recovery by hooking a tow chain from the ball hitch of one truck to the axle of another truck. Do people do that? Yes. Will it work? Potentially. Should you ever do that? That’s a great big NO for many reasons… 🙂