Many of our customers use the term walkie-talkie and two-way radio interchangeably. But did you know that while all walkie-talkies are two-way radios, not all two-way radios are walkie-talkies? While both radio products have value, they have their differences as well as advantages and disadvantages.
When you hear “walkie-talkie,” many may think of a brightly-colored children’s toy. They are often marketed as such, found in more casual settings and chain retail stores. A walkie-talkie is a portable device with push-to-talk technology that only transmits one radio on the channel at a time without the use of towers. During that time, any number of people listen and remain on the receive mode. The device is portable – hence the name “walkie-talkie.” However, they can be limited in range, often have fewer features and are license-free.
Two-way radios send and receive two-way signals and are often mounted in a vehicle or on a desk. There are two different types: full and half duplex. The half-duplex sends and receives signals one by one, while the full duplex sends and receives simultaneously. These radios allow calling and receiving at the same time using two different frequencies. Unlike walkie-talkies where you have to remain on receive mode while someone is talking, two-way radios allow you to deliver your message at the same time. Similar to walkie-talkies, they do not require towers and can be used without electricity. Two-way radios are mostly used for commercial purposes, like construction and public safety, because of their additional features and high quality.
Overall, both walkie-talkies and two-way radios are valuable and have their uses. At General Communications, we have a vast selection of two-way radios that can help you save lives, protect your community and communicate well across your organization whether that is in Public Safety, Business & Operations, Schools & Transportation, Medical & Hospitals or Hospitality & Special Events.
Once the ultimate tech for communicating with companions who were beyond shoutin’ distance, walkie talkies remain a valuable outdoor tool. Today’s rugged two-way radios are purpose-made for coordinating ongoing trip details when you’re doing activities like hiking, cycling, climbing or skiing. Cellphones may be everywhere, but cellphone coverage is not—and even a high-end two-way radio costs far less than a flagship cellphone model. Two-way radios can also be employed as communication tools during disasters when cellular networks are damaged or overwhelmed.
This overview offers buying and usage tips, and covers key two-way radio features:
Transmitting at 2 watts of power won’t give you 4 times the range of transmitting at 0.5 watts of power because many other factors also affect range, including the sensitivity of the receiving unit. A primary benefit of transmitting at a higher power is improving overall quality of the signal by filling in coverage dropouts behind obstructions.
The murky correlation between wattage and range is one reason why radio makers don’t often state exactly how much power their unit puts out on each channel or each power level setting.
Some radios state ranges of up to 35 miles in optimal conditions. Real-world conditions are rarely optimal, meaning statements like “1 mile in neighborhoods” can be found in the fine print. Achieving a good line of sight between you and the other radio operator is a key factor in achieving maximum transmission range.
Note, too, that the Earth’s curvature obstructs “straight line” transmissions, which is why you might see “up to 6 miles” for the open-water maximum range. Theoretical maximum range (like the 35 mile spec) requires your elevation to be several hundred feet above the other radio.
Several other factors can inhibit two-way radio performance: