cferguson4809
Member
How would I tell if an XG25 can do P25 or not?
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XG25
- Thread starter cferguson4809
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- Jan 31, 2018
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It's all based off the feature string located under the menu.
cferguson4809
Member
The radio I have is already trunking. Oh system is migrating from EDACS to P25. Our DO and OM don’t know a whole lot about radios, I was pretty sure we could just have them reprogrammed with the p25 system but wanted to reach out to the community before I go and look dumb.
It might have EDACS trunking, but that doesn't necessarily mean it'll have P25 trunking. You need to look in the menu for a Features option (it may or may not be there depending on who programmed the radio). If it is there, look for option 39... That's P25 trunking. The radio certainly is capable, but may not be enabled.
cferguson4809
Member
Option 39 is present lord have mercy we MIGHT be in business.
Yup you should be good then!
rjschilder
Member
Also keep in mind 47 = Phase II, 55 = Link Layer Authentication (if you're system is planning to use either of those). If not you're good with 39!
Yes, it's in the radios, but it's only activated if you pay for it. If you buy a basic XG25 it will not have anything other than analog and a few other basic features. Like most other features, you have to pay for P25 conventional, but if you buy any P25 features, P25 conventional is included.
To the OP... go into the menu, select features, and look for feature 33 (P25 CAI support). If it's there, your radio has the P25 conventional feature. 39 is P25 trunking (which includes P25 conventional).
My apologies if my statement was misunderstood. The P25 Conventional feature is inherently enabled in the XG-25P & M radios. I've purchased about a hundred XG-25Ps and P25 conventional was enabled on all of them at no additional cost. Even the product catalog doesn't have a line item for that feature.
rjschilder
Member
This is true. All of our radios have 33 enabled by default as well.
So I recently purchased a XG-25M and I have a question about the feature string. The radio feature menu shows SYSGRP= 512.
For fun I just loaded a Personality from RPM14 with 1045 Trunked Systems/Groups (as per the RPM Synopsis screen). The programming seems to have gone through fine and I'm not seeing any errors. Does this mean my radio actually has 1024+ MAX SysGrp enabled?
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EDIT: it looks like I was wrong, the radio "acted" like it was working fine, it locked onto the appropriate trunked site but it apparently wasn't unmuting any talkgroups and just didn't tell me or display any errors. It worked fine again when I programmed a personality with less than 512 talkgroups. I'm in the process of upgrading my feature string to Max SysGrp, I guess I'll just have to wait until that comes through...
For fun I just loaded a Personality from RPM14 with 1045 Trunked Systems/Groups (as per the RPM Synopsis screen). The programming seems to have gone through fine and I'm not seeing any errors. Does this mean my radio actually has 1024+ MAX SysGrp enabled?
....
EDIT: it looks like I was wrong, the radio "acted" like it was working fine, it locked onto the appropriate trunked site but it apparently wasn't unmuting any talkgroups and just didn't tell me or display any errors. It worked fine again when I programmed a personality with less than 512 talkgroups. I'm in the process of upgrading my feature string to Max SysGrp, I guess I'll just have to wait until that comes through...
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Usually a Harris radio in that situation will work fine until you get to talkgroup/channel 513, at which it will pop up INVALID SYS or another warning.
Do you mean if the all those TG's are actually programmed into zones? I'm thinking I might not have gotten an error message because I only had a few TG's directly referenced in zones; most of the TG's only exist as scan list members in the (huge) group set, so the few TG's I programmed in a zone were referencing the must larger scan list.
Zones or systems, depending on how you have the radio programmed. If it only has 512 capacity, it will only recognize 512 talkgroups; beyond that it will give you an error.
So if you're using System mode and have 33 trunked systems referencing 33 trunked group sets containing 528 groups, going to System 33 will pop up an error. Zone mode is the same way but if you're using mixed conventional and trunked in your zones the spot at which you get an error will be different.
It's always driven me nuts, personally. Everybody else gives you a hard limit for the number of talkgroups and channels in a radio (usually either 50 zones of up to 16 channels for a total of 800, or just a flat limit of 512 or 1024 or 2048 channels/talkgroups) except Harris and their predecessors; they just had to be different and come up with a convoluted capacity formula.
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