TRX-1: Adjusting DSP adapt

[N1NIJ]

Hello all,

Still learning about the dsp level adapt settings. I know it defaults at 64 and pertains to P25 mode.
What sort of issues would suggest changing the level, and how to determine if the adjustment should be faster or slower than 64?

Thank you in advance.
Rick

 

[Ubbe]

Whistler name this setting DSP Level Adapt and not speed adapt. I guess it is the same way of use as in Unidens filter settings for their SDS scanners, just try different settings to see if something improves. I think GRE made that DSP setting adjustable, like when Uniden introduced a filter setting, to let beta testers try it out and it was a global function. GRE probably didn't had the time to refine it to make it individually adjustable to each system before Whistler took over. TRX doesn't have any display of errors in the bit stream so are difficult to hear if an adjustment actually did improve anything. And then that change will affect all systems that already where working fine at a 64 setting and will probably not works as good using other values. Whistler doesn't instruct us how to use any of the DSP settings, as well as the ZeroMatic settings, and they probably have no clue themselves at this point as the firmware developers that introduced the settings are not available to them. If Whistler knows exactly how the settings work they would have given us much more detailed information about them.

/Ubbe

 

[K9ZV]

Hello all,

Still learning about the dsp level adapt settings. I know it defaults at 64 and pertains to P25 mode.
What sort of issues would suggest changing the level, and how to determine if the adjustment should be faster or slower than 64?

Thank you in advance.
Rick

The DSP Level Adapt setting has Zero effect on audio or anything at all. I have adjusted the setting from 1 to 255 (max setting) and several settings in between over a 10 day period. Nothing sounds different at all.

 

[rayvelcoro]

Here is a practical example of how you can experiment with the DSP setting: If you're having trouble receiving a certain P25 system inside a particular building or in any different location, try DSP settings between 45-49 and see if there is any improvement. There really is no rhyme or reason to it and you may not notice any difference (as previous respondents have said).

 

[Wackyracer]

My under standing is DSP is only for P25 systems, if you are monitoring some P25 and they come in at any and all DSP settings then you are very lucky!