The (Chinese) Radio Documentation Project50 Menu definitionsValues Notes Default value1 - 4 3OFF4 VOX - Voice Operated TXAdjusts the sensitivity of the VOX feature, if enabled.Values Notes Default value1 - 10 OFFOFFThe lower the setting, the louder your voice have to be in order to engage the transmitter.5 WN - Wideband / NarrowbandSets maximum band deviation.Key Values Notes Default value0 WIDE 5kHz WIDE1 NARR 2.5kHzIn the USA, FCC part 90 radios are mandated to switch over to Narrowband communi-cation by January 1st 2013. Meaning all commercial users. This does not affect AmateurRadio operators.6 ABR - Display Illumination TimeTime-out for the LCD back-light.Values (seconds) Notes Default value1 - 5 5OFF7 TDR - Dual WatchWhen enabled it allows you to monitor two frequencies simultaneously.Key Values Notes Default value1 ON OFF0 OFF
