Rather than try to post these details in several threads, I'm making one post and hoping you'll see it (and maybe post in the thread you were previously active in pointing here). We've been investigating the various reports of degraded P25 performance in some areas and noted with interest when reports surfaced that changing from NFM to FM mode improved P25 decode performance. We have tentatively verified this, but would like some more confirmation if you don't mind. Here is a relatively easy way to check:
First do MENU --> SETTINGS --> BAND DEFAULTS
Then, scroll to the setting(s) that have the frequency just below the range your local system is using. For example, if you are monitoring an 800 MHz system, scroll to the line that looks like:
849.0:NFM/ 12.5 MHz
Press E and scroll to change NFM to FM.
Press E two more times.
Then, check to see if there was any performance improvement.
For conventional P25, you'll still need to set MOD for the individual channels.
Based on the feedback we get from this, we'll be able to make adjustments that should reflect optimum settings w/o you having to tweak around with these settings.
Oh, and if your P25 decode is just fine, please do the above and see if it degrades your decode performance. We don't want to issue an update that fixes half of you but breaks the other half.
To submit a report:
FORMAT FOR REPORTING (to make my life a little easier):
Link to the system in RRDB.
Specific site monitored (if known).
Condition before: Excellent / Poor
Condition after: Excellent / Poor
Then, put any additional discussion you want to add.
First do MENU --> SETTINGS --> BAND DEFAULTS
Then, scroll to the setting(s) that have the frequency just below the range your local system is using. For example, if you are monitoring an 800 MHz system, scroll to the line that looks like:
849.0:NFM/ 12.5 MHz
Press E and scroll to change NFM to FM.
Press E two more times.
Then, check to see if there was any performance improvement.
For conventional P25, you'll still need to set MOD for the individual channels.
Based on the feedback we get from this, we'll be able to make adjustments that should reflect optimum settings w/o you having to tweak around with these settings.
Oh, and if your P25 decode is just fine, please do the above and see if it degrades your decode performance. We don't want to issue an update that fixes half of you but breaks the other half.
To submit a report:
FORMAT FOR REPORTING (to make my life a little easier):
Link to the system in RRDB.
Specific site monitored (if known).
Condition before: Excellent / Poor
Condition after: Excellent / Poor
Then, put any additional discussion you want to add.
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