Warehouse & Logistics Picking Communication: Why 4G PoC Radios Beat Traditional Walkie-Talkies

In a busy warehouse or distribution center, communication is the difference between hitting your pick rate and missing a shipment. Pickers, forklift operators, dispatchers, and loading-dock crews all need to stay in sync — often across multiple buildings, outdoor yards, and fleet vehicles. Traditional two-way radios have powered warehouses for decades, but they hit hard limits on range, audio clarity, and scaling. This guide explains why 4G PoC (Push-to-Talk over Cellular) radios like the ETMY ET-C11 and ET-C28 are becoming the standard for modern warehouse and logistics teams — and how to choose between them.

The communication problems warehouses actually face

Before picking a device, it helps to name the pain:

• Range gaps. A conventional UHF radio might cover one building, but not the outdoor yard, the remote trailer lot, or the delivery fleet leaving the gate.

• Noise and missed calls. Forklifts, conveyors, and dock equipment make it hard to hear a call — and harder to be heard.

• Licensing overhead. Many professional radios need frequency licenses and coordination, adding cost and admin before you've placed a single call.

• Scaling groups. As you add shifts and zones, managing channels and groups on analog radios gets messy fast.

How 4G PoC radios solve it

A 4G PoC radio is a push-to-talk device that rides on public cellular networks instead of short-range radio frequencies. That single difference removes most warehouse comms headaches:

• Campus-wide, even off-site. As long as there's 4G coverage, your pickers in the rack aisle, the yard crew, and the delivery driver are all on the same network — no repeaters, no dead zones between buildings.

• Crystal-clear group calls. Digital voice with noise reduction stays intelligible over conveyor and forklift noise. The ET-C11 delivers 2W audio output with noise reduction built in.

• No frequency license. Because PoC uses the cellular network, there's no radio-spectrum license to apply for.

• Instant group management. Create and manage talk groups centrally — ideal for shift-based, zone-based, or task-based teams.

Choosing between the ET-C11 and ET-C28

Both are 4G PoC radios, but they fit different roles on the floor.

ET-C11 — when you need location and flexibility

The ETMY ET-C11 is a dual-SIM 4G PoC radio with GPS/A-GPS and a 1.44" color display. It's the better pick when:

• You want to track picker or asset locations via GPS.

• You operate across multiple carriers or need backup connectivity — dual-SIM lets you switch networks.

• Crews need individual, group, and full phone-number calls from one device.

• Battery life matters on long shifts: a 3000 mAh cell keeps teams connected.

ET-C28 — when speed of dispatch matters most

The ETMY ET-C28 is a 4G PoC trunking radio built for fast team coordination, with 20 quick-call buttons and up to 110 hours of standby. It's the better pick when:

• Dispatchers need one-touch calling to 20 teams or zones — no menu digging.

• You run structured trunking communication (private, group, single, all-call).

• A long-standby device on a charging cradle suits a fixed dispatch station.

Note: the ET-C28 does not include GPS. If location tracking is a requirement, the ET-C11 is the right choice.

A simple deployment pattern

A common setup we see in mid-size warehouses:

1. Pickers & mobile crew → ET-C11 (GPS for location, dual-SIM for coverage).

1. Dispatch / control room → ET-C28 (20 quick buttons for instant zone dispatch).

1. Talk groups by zone or shift → managed centrally, not per-radio.

1. Fleet & yard → same 4G network, no separate radio system.

Because everything runs on one cellular-based platform, onboarding a new temp worker is as simple as handing them a configured radio.

Why this matters for your pick rate

Communication lag is picked-order lag. When a picker waits to confirm a bin location, or a dispatcher re-sends a missed call, that time compounds across thousands of picks a day. 4G PoC radios shrink that lag: everyone hears the call the first time, groups are always right, and nobody drops off the network at the building edge.

Frequently asked questions

Do 4G PoC radios need a license? No. Because they use public cellular networks, there's no radio-spectrum license required — you only need a data SIM plan for each device.

Will they work in my outdoor yard and delivery fleet? Yes. As long as 4G coverage reaches those areas, pickers, yard crews, and delivery drivers stay on the same network as the warehouse floor.

Which ETMY model has GPS for tracking pickers? The ET-C11 includes GPS/A-GPS. The ET-C28 does not include GPS.

Final takeaway

If your warehouse has outgrown the range and scaling limits of traditional walkie-talkies, 4G PoC is the practical upgrade — and you don't need a radio license to start. Match the ET-C11 to mobile, GPS-tracked crews and the ET-C28 to fast-dispatch control points, and your floor, yard, and fleet stay on one conversation.