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MD380 QT Reverse Burst/STE Issue

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AOD999

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#1
I've programmed a zone that has a few digital dmr channels in simplex with a repeater and one channel that's analogue HTs to HT's

Its a CTCSS encode and decode on 233.6 with old Motorola radios. In my CPS I have the QT/Reverse Burst set to enabled and at 120 and when ever i key up and the transmission ends it has the squelch at the end. I have also a cheap baofeng radio with STE on and does not have this issue at all.

I'm trying to find out if this is a firmware bug in the MD380 that's gone unnoticed still.
 
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Wichita Falls, TX
#2
120/180 degree phase shift reverse burst does not work on Baofeng radios and they are not capable of transmitting it. Instead they use a 55 Hz tone. Menu 35 STE (on the UV-5R and UV-82) turns this feature on and off.

This 55 Hz STE tone may be common to many Chinese manufacturers. Some Wouxun models have it (no way to enable or disable it) and the setting is present in the programming software on some AnyTone models. Maybe TYT also uses it.

You need to look at the MD-380's transmitted audio on a receiver with baseband/discriminator audio with an oscilloscope or record and analyze it to see exactly what the problem is.
 

AOD999

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#3
In this environment. It's either Motorola HT1250 LS or the radius cp250. The baofeng through STE being on doesn't have that squelch tail at the end. But the md380 does regardless no matter what I have tried
 
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