Newbie questions RE digital vs analog / Phase 2 HEX / DEC / SS911 / Phase 2 .. sorry in advance.

[Outlawed_1]

In regards to SS911 and Pierce county trunked Phase 2 systems in general: Specifically SS911 which supposedly covers all of Pierce county. On my BCD325P2 Uniden Bearcat, should I be choosing digital or analog when programming this P25 system? I have successfully programmed this scanner but I thought (from what I read) that P25 was digital but my scanner is working fine with analog selected.
Another question I have RE SS911: "control frequencies" I see "Site ID HEX 1E7" or "3AC" at the top of the P2 list, is that "SITE ID considered a ""control"" of some sort? I actually have my scanner programmed both ways. One system using HEX and another system using DEC. It works both ways, but if anyone has some input regarding this I'd like to hear what's right or wrong ..
Thanks in advance.

 

[nessnet]

Please read one of these:

Trunking Basics - The RadioReference Wiki

https://en.wikipedia.org/wiki/Trunked_radio_system

https://www.taitradioacademy.com/topic/how-does-trunking-work-1/#:~:text=When a trunked radio user,so at the same time.

P25 II is digital.
I don't specifically know why analog is working (radio seeing digital and ignoring the setting)?

Now with the hex:
The "1E7" is just the system ID.
It does not need to be programmed.

The only thing you have to pay attention to (and program) are the sites themselves, each with it's name, control channel and it's alternate(s). Also your (DEC) trunk group numbers and each trunk group name.

In RR:
South Sound 911 Trunking System, Lakewood, Washington - Scanner Frequencies
Red = control (see the little c behind the number?)
Blue are the alternates. (see the little a behind the number)

RFSS	Site	Name	County	Freqs
1 (1)	001 (1)	Tacoma Simulcast	Pierce	773.43125	773.68125	773.93125a	774.18125	774.43125a	774.68125c
1 (1)	002 (2)	Orting Simulcast	Pierce	769.33125	769.58125	769.85625	770.10625	770.35625a	770.60625a	770.85625
				771.78125	773.45625	773.98125a	774.48125c	774.73125
1 (1)	003 (3)	South Simulcast	Pierce	771.13125	771.55625	772.05625	772.68125	773.23125	773.73125c
1 (1)	004 (4)	West Seattle	King	769.30625	769.80625	770.30625	770.80625	773.20625a	773.70625	774.20625a
				774.70625c
1 (1)	005 (5)	Buckley	Pierce	771.38125	771.95625	772.43125	772.93125a	773.48125c

One Note:
SS911 does have some encryption:
(You can't listen to it)

40108	9cac	DE	PCSO Tac 1	Pierce Tac 1	Law Tac
40113	9cb1	DE	PCSO Tac 2	Pierce Tac 2	Law Tac

 

[sonm10]

I don't mean to be snarky, but your post and questions are a mess.

1) P25 is always digital. I'm not sure how you are programming analog and working, but always program as digital.
2) In regards to the system ID, it is not needed for programming.
3) Talkgroups - always program the decimal version.

 

[tvengr]

Most scanners use DEC, but often can be selected to use DEC or HEX. Unication pagers and commercial 2-way radios use HEX. Don't worry about Site ID and Site NAC. The 325P2 doesn't use them. The only scanners that can use Site NAC are the SDS100 and SDS200. Site NAC's are useful in statewide systems where frequencies are often reused at great distances. The scanner can differentiate between sites, even though the same control channel frequency is used.

 

[Outlawed_1]

Please read one of these:

Trunking Basics - The RadioReference Wiki

https://en.wikipedia.org/wiki/Trunked_radio_system

https://www.taitradioacademy.com/topic/how-does-trunking-work-1/#:~:text=When a trunked radio user,so at the same time.

P25 II is digital.
I don't specifically know why analog is working (radio seeing digital and ignoring the setting)?

Now with the hex:
The "1E7" is just the system ID.
It does not need to be programmed.

The only thing you have to pay attention to (and program) are the sites themselves, each with it's name, control channel and it's alternate(s). Also your (DEC) trunk group numbers and each trunk group name.

In RR:
South Sound 911 Trunking System, Lakewood, Washington - Scanner Frequencies
Red = control (see the little c behind the number?)
Blue are the alternates. (see the little a behind the number)

RFSS	Site	Name	County	Freqs
1 (1)	001 (1)	Tacoma Simulcast	Pierce	773.43125	773.68125	773.93125a	774.18125	774.43125a	774.68125c
1 (1)	002 (2)	Orting Simulcast	Pierce	769.33125	769.58125	769.85625	770.10625	770.35625a	770.60625a	770.85625
				771.78125	773.45625	773.98125a	774.48125c	774.73125
1 (1)	003 (3)	South Simulcast	Pierce	771.13125	771.55625	772.05625	772.68125	773.23125	773.73125c
1 (1)	004 (4)	West Seattle	King	769.30625	769.80625	770.30625	770.80625	773.20625a	773.70625	774.20625a
				774.70625c
1 (1)	005 (5)	Buckley	Pierce	771.38125	771.95625	772.43125	772.93125a	773.48125c

One Note:
SS911 does have some encryption:
(You can't listen to it)

40108	9cac	DE	PCSO Tac 1	Pierce Tac 1	Law Tac
40113	9cb1	DE	PCSO Tac 2	Pierce Tac 2	Law Tac

Thank you.

I don't mean to be snarky, but your post and questions are a mess.

1) P25 is always digital. I'm not sure how you are programming analog and working, but always program as digital.
2) In regards to the system ID, it is not needed for programming.
3) Talkgroups - always program the decimal version.

Thank you.

 

[Outlawed_1]

Please read one of these:

Trunking Basics - The RadioReference Wiki

https://en.wikipedia.org/wiki/Trunked_radio_system

https://www.taitradioacademy.com/topic/how-does-trunking-work-1/#:~:text=When a trunked radio user,so at the same time.

P25 II is digital.
I don't specifically know why analog is working (radio seeing digital and ignoring the setting)?

Now with the hex:
The "1E7" is just the system ID.
It does not need to be programmed.

The only thing you have to pay attention to (and program) are the sites themselves, each with it's name, control channel and it's alternate(s). Also your (DEC) trunk group numbers and each trunk group name.

In RR:
South Sound 911 Trunking System, Lakewood, Washington - Scanner Frequencies
Red = control (see the little c behind the number?)
Blue are the alternates. (see the little a behind the number)

RFSS	Site	Name	County	Freqs
1 (1)	001 (1)	Tacoma Simulcast	Pierce	773.43125	773.68125	773.93125a	774.18125	774.43125a	774.68125c
1 (1)	002 (2)	Orting Simulcast	Pierce	769.33125	769.58125	769.85625	770.10625	770.35625a	770.60625a	770.85625
				771.78125	773.45625	773.98125a	774.48125c	774.73125
1 (1)	003 (3)	South Simulcast	Pierce	771.13125	771.55625	772.05625	772.68125	773.23125	773.73125c
1 (1)	004 (4)	West Seattle	King	769.30625	769.80625	770.30625	770.80625	773.20625a	773.70625	774.20625a
				774.70625c
1 (1)	005 (5)	Buckley	Pierce	771.38125	771.95625	772.43125	772.93125a	773.48125c

One Note:
SS911 does have some encryption:
(You can't listen to it)

40108	9cac	DE	PCSO Tac 1	Pierce Tac 1	Law Tac
40113	9cb1	DE	PCSO Tac 2	Pierce Tac 2	Law Tac

So, after reading these replies I'm being referred back to how I originally tried, which I will try again. I've created several different "systems", each using a different method and I'm receiving good communications, I'm just trying to understand this scanner better. I also, want to be able to identify each transmission when it pops up, so it sounds like if I:
1 - create a system
2 - program the control, alternate frequencies (under "sites" on my scanner)
3 - program TGIDs and name them (under "groups" on my scanner)
I should then be good to go.?
Still perplexed in how I was/am receiving transmission with "AGS digital" turned off.
I will say though, that one of my "systems" , all I did was program the control frequencies under one "site" on my scanner and the "Site ID HEX code" 1E7) under "group" and I'm receiving good transmissions on that "system". Problem is with that, is I can't see where each transmission is coming from. I know the area well geographically so if I'm listening close I can pretty much tell, but I want to know whether it's PCS or TPD or ??
Thanks .. I know I'm very green here and like I said I'm my original post, I'm sorry I'm advance lol.

 

[Outlawed_1]

One more thing .. if I get this to work and program only the TGIDs I want to hear, I should then be able to select "scan ID" instead of "SEARCH ID", Correct?

 

[doctordialtone]

I should then be able to select "scan ID" instead of "SEARCH ID", Correct?

Correct!

 

[sonm10]

AGS Digital - stabilizes audio level for digital signals
AGS Analog - stabilizes audio level for analog signals

Not convinced it works well, but doesn't hurt to have it on.

 

[Outlawed_1]

AGS Digital - stabilizes audio level for digital signals
AGS Analog - stabilizes audio level for analog signals

Not convinced it works well, but doesn't hurt to have it on.

Aahh .. that explains a lot .. thank you.

 

[nessnet]

One more thing .. if I get this to work and program only the TGIDs I want to hear, I should then be able to select "scan ID" instead of "SEARCH ID", Correct?

Think of it this way:
ID Search = ANY talkgroup that is given a channel grant on the control channel
ID Scan = only those trunkgroups you have programmed

 

[Outlawed_1]

Think of it this way:
ID Search = ANY talkgroup that is given a channel grant on the control channel
ID Scan = only those trunkgroups you have programmed

That's what I was thinking .. I keep getting some sanitation, transit coms .. 👎 . Eat up air time and miss the good stuff.

 

[nessnet]

That's what I was thinking .. I keep getting some sanitation, transit coms .. 👎 . Eat up air time and miss the good stuff.

Look at your service types (if a 325 does have service types??)
One way to only listen to what you want (when using ID search)

 

[Outlawed_1]

Look at your service types (if a 325 does have service types??)
One way to only listen to what you want (when using ID search)

No, there's no "service types" to select. I'm guessing that's what the "ID SCAN" VS "ID SEARCH" does.

 

[doctordialtone]

No service types on the 325P2

 

[tvengr]

Still perplexed in how I was/am receiving transmission with "AGS digital" turned off.

Do you mean digital AGC? Automatic Gain Control attempts to keep the audio level at a constant loudness. When dealing with simulcast systems, it is better to set digital AGC to Off. The AGC action can increase garbled audio problems.

 

[Outlawed_1]

Do you mean digital AGC? Automatic Gain Control attempts to keep the audio level at a constant loudness. When dealing with simulcast systems, it is better to set digital AGC to Off. The AGC action can increase garbled audio problems.

Yes, sorry AGC .. Good advice, makes sense. Thank you.