The following steps are based on the Baofeng UV-5R V2+ model, but should apply to any UV-5R series Baofeng model.
A simplex communication is a direct communication between two radios with transmission and receiving happening on the same frequency. No repeater is involved. That means one device transmits and the others can only “listen” and cannot be heard while in the moment of “listening” (one transmits/talks and the other can only receive/listen at a time).
1: set the device to frequency mode. This can be done by pressing the orange [VFO/MR] key. VFO stands for Variable Frequency Oscillator (Frequency Mode) and MR stands for Memory Recall (Channel Mode)
2: set WN (Wideband / Narrowband) to wide (wide = 5 khz)
1: press [MENU]
2: use the up/down arrow or press the 5 to jump to the WN menu item
3: press [MENU] and use the up/down keys to set the value to WIDE.
4: press [MENU] to confirm/save
5: press [EXIT]
3: Using the blue [A/B] key, make sure the arrow on the screen is pointing to upper frequency (A)
4: type in the frequency using key pad.
For example, you can test the reception by typing in one the national weather radio frequencies: 162.400, 162.425, 162.450, 162.475, 162.500, 162.525, 162.550. As soon as you type one of these frequencies, the weather radio should start playing if the signals are reaching the device. Depending on your location, not all frequencies mentioned above will work but one of them will.
5: Save the frequency to a channel. (Steps to saving the channel will be at the end of the article)