Have a BUNCH of full P-25 compliant XTS series radios that are all being operated conventional, but with a wide mix of both analog and digital (P-25) channels. We have always set our Rx Voice type to either Non-Astro or Astro as needed for the specific channel. However, the quesiton was asked as to why not set ALL channels to MIXED MODE Receive, and then make the analog or digital selection in the TX Options Tab? Is there any performance penalty within the radio in setting up a personality for MIXED Mode? Would seem that in an operational sense, this would cover the most bases, especially when an area is in transition (I always felt that was the reason that Moto included the MIXED mode option---) Can anyone shed any light on advantages or disadvantages of hard fixing the Rx Voice Type vrs using MIXED Mode?
Thanks!
XTS Rx Voice/Signal Type
Moderator: Queue Moderator
-
mustanglane
- Posts: 38
- Joined: Tue May 01, 2007 12:37 pm
Re: XTS Rx Voice/Signal Type
Dennis
Did your set up come about from the way we were doing the default codeplugs in the 5000D, IE did you copy from our RX mode settings over to handhelds and build codeplugs from there or did you just do it this way on your own from the start ?
I know some people copied and cloned our default CPG files to their HT's and then built their own final CPG's from there and came to the same conclusion later on about mixed mode settings.
Az DPS comes to mind with the P2000 radio, they had some duplicates like you mention with in the early days of the 2000 with numerous different receive rules but the same RF frequencies.
I usually set up our engineering handhelds in mixed mode except on the analog channels where I have a wireless speaker mic talking to a GE vehicular repeater (VRS).
If my rx rule is set to mixed mode the unsquelch delay is just long enough where the short GE STAR return burst from the VRS is squelched out and at times you don't know if your getting into the VRS at all.
Since you guys aren't using any of the older VRS technologies with slow analog encoders and decoders, then setting Rx to mixed mode should save you a lot of zone space.
Mike
Did your set up come about from the way we were doing the default codeplugs in the 5000D, IE did you copy from our RX mode settings over to handhelds and build codeplugs from there or did you just do it this way on your own from the start ?
I know some people copied and cloned our default CPG files to their HT's and then built their own final CPG's from there and came to the same conclusion later on about mixed mode settings.
Az DPS comes to mind with the P2000 radio, they had some duplicates like you mention with in the early days of the 2000 with numerous different receive rules but the same RF frequencies.
I usually set up our engineering handhelds in mixed mode except on the analog channels where I have a wireless speaker mic talking to a GE vehicular repeater (VRS).
If my rx rule is set to mixed mode the unsquelch delay is just long enough where the short GE STAR return burst from the VRS is squelched out and at times you don't know if your getting into the VRS at all.
Since you guys aren't using any of the older VRS technologies with slow analog encoders and decoders, then setting Rx to mixed mode should save you a lot of zone space.
Mike
-
mustanglane
- Posts: 38
- Joined: Tue May 01, 2007 12:37 pm
Re: XTS Rx Voice/Signal Type
He Mike, How are you?
In short, no, we didn't base on the RT5K codeplugs - the agency (BEFORE the mergers) always had analog MDC type towers set to NON-ASTRO, and the new P-25 digital towers always set to ASTRO. We've seen the mixed mode setting in some "other agency" code plugs where they were in the process of updating their regional towers to digital. I've kind of always felt to make the personality either FULL analog, or FULL digital and not straddle the fence. However, one of my junior programmers, having recently discovered the MIXED Mode setting, asked why not just set ALL personalities, regardless of agency or modulation type, to MIXED. Really didn't have a good answer other than my previous belief to be fully either one or the other. I'm sort of guessing that it wouldn't matter - in those areas where they have done this, it seems like they were attempting to cover both systems at once, however, even there it didn't matter cause when they threw the digitial switch, more often than not the freqs were not even related and a number of times, the actual tower name/location had to change. Probably just one of those Moto things that they did to help a customer who thought they needed to have MIXED mode receive!
Unrelated, I'm waiting on a second SWID-22 -5811 so I can start some testing - we are still flying a pair of Swid-22 -0611s configured for "All in One Zone" mode with no issues. IF I can proof test the -5811s the same way (and I have every belief that it will work out), then I'll be pushing the agency to upgrade and convert the whole fleet so we can go to all in one zone. Fixes a lot of issues!
Take Care,
DDG
In short, no, we didn't base on the RT5K codeplugs - the agency (BEFORE the mergers) always had analog MDC type towers set to NON-ASTRO, and the new P-25 digital towers always set to ASTRO. We've seen the mixed mode setting in some "other agency" code plugs where they were in the process of updating their regional towers to digital. I've kind of always felt to make the personality either FULL analog, or FULL digital and not straddle the fence. However, one of my junior programmers, having recently discovered the MIXED Mode setting, asked why not just set ALL personalities, regardless of agency or modulation type, to MIXED. Really didn't have a good answer other than my previous belief to be fully either one or the other. I'm sort of guessing that it wouldn't matter - in those areas where they have done this, it seems like they were attempting to cover both systems at once, however, even there it didn't matter cause when they threw the digitial switch, more often than not the freqs were not even related and a number of times, the actual tower name/location had to change. Probably just one of those Moto things that they did to help a customer who thought they needed to have MIXED mode receive!
Unrelated, I'm waiting on a second SWID-22 -5811 so I can start some testing - we are still flying a pair of Swid-22 -0611s configured for "All in One Zone" mode with no issues. IF I can proof test the -5811s the same way (and I have every belief that it will work out), then I'll be pushing the agency to upgrade and convert the whole fleet so we can go to all in one zone. Fixes a lot of issues!
Take Care,
DDG