Retevis Updated the Amateur radio Ailunce HD1‘s firmware and software. The latest version is Software v1.98 and Firmware V1.53.
Software v1.98 and Firmware V1.53 changelog
Click Menu-Main Set-Mic Gain(Value from -10 to +10)
5. Add permit tone select on-off for analog and digital
11.Improve the squelch function
12. Address when setting the CTCSS, after the first time receives, there will no audio when a signal is coming, unless you press PTT again.
13. An issued problem when a Channel Alias in only imported if it’s numbers. If it is text then the imported field is just blank.
14. The new software and firmware are more stable with a connection to the computer.
Download here: http://www.retevis.com/hd1-resources/
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Wanna to know more about Ailunce HD1? Watch this video about HD1 teardown: