On 3/29/2021 8:30 AM, Suryono Adisoemarta via groups.io wrote:
Reduce power, the RF is get induced to the PTT keeping TX too long.
That's not the case here - radios based on the RDA1846(S) chips have a
feature that uses a CTCSS tone to signal end of transmission, so compatible
radios can mute the receiver and avoid the squelch tail. It's similar to reverse-
burst CTCSS except, instead of changing the phase of? the CTCSS burst, it
generates a specific CTCSS burst and hold the transmitter long-enough
for the receiving end to decode and mute (~250mS).
The original poster already confirmed this feature was enabled by default,
disabled it and eliminated the long PTT tail.
73,
Dana? K6JQ
73 de Yono - YD0NXX
