SDS100/SDS200: SDS100 beginning of transmissions cut off

[NoahWL]

I'vd always had this problem with my SDS100. It's extremely noticeable for tone-outs. SDR-Trunk will play the ~3 second tone no problem but the SDS100 will typically only play a second. No DnD, only one site and control channel programmed, filters not set to auto, held onto a single talkgroup. It just takes too long to lock onto the voice channel sometimes. The weaker the signal and the further the channels are apart the worse it is.

Increasing the talkgroup delay helps but of course doesn't do anything for the first call. Setting squelch to 1 helps slightly but then you can't scan any analog freqs because the squelch is open.

 

[werinshades]

I'vd always had this problem with my SDS100. It's extremely noticeable for tone-outs. SDR-Trunk will play the ~3 second tone no problem but the SDS100 will typically only play a second. No DnD, only one site and control channel programmed, filters not set to auto, held onto a single talkgroup. It just takes too long to lock onto the voice channel sometimes. The weaker the signal and the further the channels are apart the worse it is.

Increasing the talkgroup delay helps but of course doesn't do anything for the first call. Setting squelch to 1 helps slightly but then you can't scan any analog freqs because the squelch is open.

As with this OP, it was later discovered to be a programming issue which is possibly the cause. Do the same thing...video, upload the programming and maybe your issue will be resolved too.

 

[Ubbe]

Increasing the talkgroup delay helps but of course doesn't do anything for the first call. Setting squelch to 1 helps slightly but then you can't scan any analog freqs because the squelch is open.

If you have programmed NFM, or if that is the bandplan defaults, change to FM as that will have the squelch work better and open more easily. It's an old Upman trick as the filters in the DSP for demodulation are so narrow that they can be a bit too narrow if the signal are not clean enough without any interference.

I think it is a general problem with SDS100, and probably SDS200, as the audio unmute very late, when there's already been 1/2 sec of audio.
In analog mode you can hear that the audio are delayed by the DSP process when having another scanner monitoring the same channel. But the mute/unmute function operates from the signal before the audio delay and clips the last 1/2 sec of a conversation. In the same way it should open up the audio 1/2 sec too early but it doesn't due to its unmute function are so slow to react.

/Ubbe

 

[Brales60]

on our system there are some dispatchers who should not be on the radio.
one has a very heavy accent, and the other two are opposites.
one cuts out the beginning of a sentence, like the example, and the other cuts off the end "eight O'" (six)
due to an older issue with one now ex-dispatcher, the units just wait for the computer for the information.
the only give away is the parking guys who do not have a computer. they ask for a repeat.

so, is it maybe one or two dispatchers ?
why would you not hear the beginning of the cars ?

Todd and are within about 5 miles of each other and he's right. One of the dispatchers starts to talk before she keys the mic.