How We Research
Every guide on SincereSconce starts with one question: will this product work for the person who is shopping for it? For our GPS and CB radio guides, that means the vehicle you drive, the roads you travel and how you'll use the device.
Here is how we answer it.
1. We start with your vehicle and your trips
A daily commuter, an RVer and a long-haul trucker each need something different. A car GPS may not plan routes around the height and weight of a truck or RV.
We check the screen size, the route type and the radio type (mobile or handheld) the maker lists. When your vehicle limits the choice, we say what to look for.
2. We compare specs and features
We look at screen size, map coverage, route type (car, truck or RV), how map updates and traffic come with the unit, mounting, power, CB channels and noise filters, and scanner bands and digital support.
Garmin, Rand McNally, Cobra, Uniden and Midland describe their products in their own words, so we name the brand for every claim. We also note the warranty terms the maker lists.
3. We look at buyer feedback
We read through what buyers report after using a unit. We look for patterns, like screens that are hard to read in sun, slow route updates, static or weak range on CB radios, scanners that are hard to program and mounts that slip.
One angry review doesn't sink a product. A pattern does.
4. We score each product
Our score weighs specs, features and buyer feedback against what you're shopping for. A product that's great for one reader may score lower in a guide written for another.
Scores spread out on purpose. A 10 is rare.
5. We keep pages up to date
Products change, and some disappear from stores. Some models also have renewed twins with the same name, so we check each model name and we only link new units.
We skip unknown brands with no track record, products with a known recall, and radios or add-ons that don't follow FCC rules. When we update a guide, the "Updated on" date at the top changes with it.
What our picks are not
Our picks are research, not lab tests. We don't claim to have used every unit we cover.
We don't promise that a route will avoid low bridges, weight limits or tunnels, and we tell you to follow road signs. Radio and scanner rules vary by state, so check your local rules, because we don't give legal advice.