What is a PoC radio? Push-to-talk over cellular explained
A PoC radio talks over a carrier's SIM and 4G network instead of its own antennas. How it works, what you need to use it, where it falls short and how to check type approval.
PoC guides
Neutral explainers for anyone choosing push-to-talk over cellular for the first time. Every guide cites its sources and is reviewed when the facts change.
PoC radio cost: device, platform subscription and data
A PoC radio costs three things, the device, the platform and the SIM. Published prices, how much data it uses and what is behind the "no monthly fee" and "lifetime" offers.
PoC radio vs DMR, analog radio and PTT apps
PoC radios, DMR radios, analog radios and push-to-talk apps solve different problems. Compare range, licensing, cost and what works without a network, and when a hybrid radio makes sense.
How to choose a PoC radio: 8 things to check before you buy
Device type, ruggedness (IP, MIL-STD, hazardous locations), US LTE bands, platform lock-in, FCC authorization, battery, accessories and MCPTT: what to check before buying a PoC radio.
Do PoC radios need a license? FCC certification explained
A PoC radio runs on a carrier's network, so you do not need the FCC license that Part 90 or GMRS radios require. The device still needs FCC equipment authorization. How to check an FCC ID and what to avoid.
SIM card for a PoC radio: carrier, data plan and coverage
Which SIM to put in a PoC radio, how much data it uses, which LTE bands to check for AT&T, Verizon and T-Mobile, how to check coverage, and what dual SIM, eSIM, Wi‑Fi and APN change.