Uniden GMR2238-2CK is a portable two-way radio produced by Uniden, US. It has 15 GMRS channels and 7 FRS channels, which can be selected by CTCSS and DCS codes. The maximum communication distance can reach 22 miles. This radio also has VOX internal circuitry, 5 selectable call tone alerts, backlit LCD display, headset jack and other functions.
The Uniden GMR2238-2CK is a lightweight, palm-sized General Mobile Radio Service (GMRS) radio designed for communication in various outdoor settings. It features 22 channels, 99 sub-codes, and a backlit LCD display. The device supports both NiMH battery packs and 4 AAA alkaline batteries and includes features like channel scanning, VOX (voice-operated transmission), and a monitor mode for listening to weak signals.
The manual provides instructions on installing batteries, charging the unit using the supplied cradle or a DC adapter, and navigating the menu system. Key operational topics include selecting channels and sub-codes, adjusting volume and key beeps, using the headset jack, and configuring settings such as the keypad lock and Roger Beep.
| Channels | 15 GMRS / 7 FRS Channels |
|---|---|
| Sub Codes | 99 Sub Codes |
| Range (GMRS) | Up to 22 Mile Range |
| Battery Type | NiMH battery pack or 4 AAA alkaline batteries |
| DC Input | 9V Jack |
The battery pack should be charged for 16 hours until the battery indicator stops flashing.
The typical range is up to 22 miles on these channels.
It takes 16 hours to charge the battery pack until the indicator stops flashing.
The display illuminates for 10 seconds before turning off.