2022 MOSWIN Sites/Talkgroups

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Nothing wrong with that. I still suggest only scanning one site at a time for most optimal trunk tracking
Very true sir, I also have 2 sites in for another reason, 1 site carries the East and West zones and another site carries the East ,West and South Zones. Don't want to miss out on the South.
 
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Missouri
it can't hurt to put in the voice frequencies, as they are called.
the county north of me changed control over to a voice frequency twice.
the FCC give them the freqs and it is up to then to use them.
Thank you for the in sight , Stay safe down in the sunshine state sir.
 
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KA0KDW

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Mar 1, 2016
Messages
323
Location
Polk County, Mo
On MoSWIN they don’t swap control channels. The primary stays as is unless there happens to be interference or the repeater that is for the primary fails. Then it makes it the secondary. In most cases the secondary channel is chosen because it’s one that is more prone to interference. It’s also the last channel to he assigned as a possible voice channel. Its also very rare on MoSWIN that the primary control goes off. And usually if the primary control changes to a different frequency set. Then most typically the site changes frequencies all other. I only use the primary channel. And the MHP techs program their scanners with control and secondary control only.

All info on my answer here is from MSHP techs.
 
Joined
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Messages
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Location
Missouri
On MoSWIN they don’t swap control channels. The primary stays as is unless there happens to be interference or the repeater that is for the primary fails. Then it makes it the secondary. In most cases the secondary channel is chosen because it’s one that is more prone to interference. It’s also the last channel to he assigned as a possible voice channel. Its also very rare on MoSWIN that the primary control goes off. And usually if the primary control changes to a different frequency set. Then most typically the site changes frequencies all other. I only use the primary channel. And the MHP techs program their scanners with control and secondary control only.

All info on my answer here is from MSHP techs.
If just using just the Control channel, would that speed your scan time on the MOSWIN system?
 
Joined
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I’ve not noticed any changes in scan speed. But it does help to reduce the chances of picking up other sites who use the same frequency (more so an issue with the VHF sites).
Yes I noticed, I thought I was receiving Branson site But it had the same frequency has another site, you gave very good in site. Thank you..
 

hitechRadio

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Dec 23, 2010
Messages
556
It is pointless to put in the voice channels. Assuming the RR database is correct.

You can use SDRtrunk to see channels that may be used as a control channel at a site Primary and secondary. If hypothetically, all available Control Channels fail the site will go to failsoft, (If allowed).

On the system admin side, they will set what channels can be used as CC, even which channel is used for Base Station Identification (BSI) Callsign, and if it is a protected channel. A CC primary or secondary, or BSI channel by default is considered protected

On an Moto P25 system the CC does not roll like back in the old days.
The only time CC will roll if interference level above a threshold, channel failure, System Maintenance or sometimes when the site recovers to Site Wide trunking from site trunking, or site controller 1 or 2 changes or roll. The CC may move for a second or two.

Additionally, voice calls are assigned based on channel service level.

Example, if you have a 6 channel site. Two Channels are CC capable (one Primary and one secondary), one channel assigned as BSI, and one set as protected.

Channel 1= CC primary
Channel 2= CC secondary
Ch3=Voice 3
Ch4=Voice 4
Ch5=Voice 5 (Protected)
Ch6=Voice 6 (BSI)

In this scenario, call assignments would be made and alternate between ch3 and ch4.
If 3 calls are made the assignment would be ch3, ch4 and ch6.
If 4 calls made assignment would be ch3, ch4, ch6 and ch5.
If 5 calls made ch3, ch4, ch6 ch5 and ch2.
If 6 calls made, the user gets a busy.*

(*Note: There was an option, not sure if it is still available in the current version, but the actual control channel could be assigned as a voice channel, if all channels were in an active call. Typically you will not see this used in a smart zone system, but was used on some single site private SMR systems to help leverage channel investment.)

Failure mode of this site.
If ch1 fails or removed from service for what ever reason, the CC moves to channel 2.
If both Channel 1 and 2 have failed the site will go into failsoft or site off condition depending on admin settings.

Also. there is 2 site controllers in the site, if both site controllers were to fail, site enters failsoft or off condition depending.
Loosing zone link connection to Core (telephone line) causes site trunking and calls are only processed locally in that site.
However, If site trunk was to occur, radios will seek out a site that is in site Wide Trunking, and leave the failed site. Returning after the site is reported to be back in site wide mode after a random timer threshold.

You can have up to 4 channels capable to be Control channels at a site, the system admin will chose the primary and secondary CC's, BSI channel and if needed protected channel based on different system requirement's, that can be wide ranging on the decision.
If the system is simulcast may have a bearing on this also.
 

KA0KDW

Member
Joined
Mar 1, 2016
Messages
323
Location
Polk County, Mo
It is pointless to put in the voice channels. Assuming the RR database is correct.

You can use SDRtrunk to see channels that may be used as a control channel at a site Primary and secondary. If hypothetically, all available Control Channels fail the site will go to failsoft, (If allowed).

On the system admin side, they will set what channels can be used as CC, even which channel is used for Base Station Identification (BSI) Callsign, and if it is a protected channel. A CC primary or secondary, or BSI channel by default is considered protected

On an Moto P25 system the CC does not roll like back in the old days.
The only time CC will roll if interference level above a threshold, channel failure, System Maintenance or sometimes when the site recovers to Site Wide trunking from site trunking, or site controller 1 or 2 changes or roll. The CC may move for a second or two.

Additionally, voice calls are assigned based on channel service level.

Example, if you have a 6 channel site. Two Channels are CC capable (one Primary and one secondary), one channel assigned as BSI, and one set as protected.

Channel 1= CC primary
Channel 2= CC secondary
Ch3=Voice 3
Ch4=Voice 4
Ch5=Voice 5 (Protected)
Ch6=Voice 6 (BSI)

In this scenario, call assignments would be made and alternate between ch3 and ch4.
If 3 calls are made the assignment would be ch3, ch4 and ch6.
If 4 calls made assignment would be ch3, ch4, ch6 and ch5.
If 5 calls made ch3, ch4, ch6 ch5 and ch2.
If 6 calls made, the user gets a busy.*

(*Note: There was an option, not sure if it is still available in the current version, but the actual control channel could be assigned as a voice channel, if all channels were in an active call. Typically you will not see this used in a smart zone system, but was used on some single site private SMR systems to help leverage channel investment.)

Failure mode of this site.
If ch1 fails or removed from service for what ever reason, the CC moves to channel 2.
If both Channel 1 and 2 have failed the site will go into failsoft or site off condition depending on admin settings.

Also. there is 2 site controllers in the site, if both site controllers were to fail, site enters failsoft or off condition depending.
Loosing zone link connection to Core (telephone line) causes site trunking and calls are only processed locally in that site.
However, If site trunk was to occur, radios will seek out a site that is in site Wide Trunking, and leave the failed site. Returning after the site is reported to be back in site wide mode after a random timer threshold.

You can have up to 4 channels capable to be Control channels at a site, the system admin will chose the primary and secondary CC's, BSI channel and if needed protected channel based on different system requirement's, that can be wide ranging on the decision.
If the system is simulcast may have a bearing on this also.
And on the state maintained (MoSWIN sites) the secondary control and BSI are typically chosen as channels that have a higher risk of interference from tower agencies on same frequency (especially on the VHF sites)
 
Joined
Feb 26, 2022
Messages
31
Location
Missouri
And on the state maintained (MoSWIN sites) the secondary control and BSI are typically chosen as channels that have a higher risk of interference from tower agencies on same frequency (especially on the VHF sites)
Thanks again for the great input. Have great scanning day... 73s.
 
Joined
Feb 26, 2022
Messages
31
Location
Missouri
It is pointless to put in the voice channels. Assuming the RR database is correct.

You can use SDRtrunk to see channels that may be used as a control channel at a site Primary and secondary. If hypothetically, all available Control Channels fail the site will go to failsoft, (If allowed).

On the system admin side, they will set what channels can be used as CC, even which channel is used for Base Station Identification (BSI) Callsign, and if it is a protected channel. A CC primary or secondary, or BSI channel by default is considered protected

On an Moto P25 system the CC does not roll like back in the old days.
The only time CC will roll if interference level above a threshold, channel failure, System Maintenance or sometimes when the site recovers to Site Wide trunking from site trunking, or site controller 1 or 2 changes or roll. The CC may move for a second or two.

Additionally, voice calls are assigned based on channel service level.

Example, if you have a 6 channel site. Two Channels are CC capable (one Primary and one secondary), one channel assigned as BSI, and one set as protected.

Channel 1= CC primary
Channel 2= CC secondary
Ch3=Voice 3
Ch4=Voice 4
Ch5=Voice 5 (Protected)
Ch6=Voice 6 (BSI)

In this scenario, call assignments would be made and alternate between ch3 and ch4.
If 3 calls are made the assignment would be ch3, ch4 and ch6.
If 4 calls made assignment would be ch3, ch4, ch6 and ch5.
If 5 calls made ch3, ch4, ch6 ch5 and ch2.
If 6 calls made, the user gets a busy.*

(*Note: There was an option, not sure if it is still available in the current version, but the actual control channel could be assigned as a voice channel, if all channels were in an active call. Typically you will not see this used in a smart zone system, but was used on some single site private SMR systems to help leverage channel investment.)

Failure mode of this site.
If ch1 fails or removed from service for what ever reason, the CC moves to channel 2.
If both Channel 1 and 2 have failed the site will go into failsoft or site off condition depending on admin settings.

Also. there is 2 site controllers in the site, if both site controllers were to fail, site enters failsoft or off condition depending.
Loosing zone link connection to Core (telephone line) causes site trunking and calls are only processed locally in that site.
However, If site trunk was to occur, radios will seek out a site that is in site Wide Trunking, and leave the failed site. Returning after the site is reported to be back in site wide mode after a random timer threshold.

You can have up to 4 channels capable to be Control channels at a site, the system admin will chose the primary and secondary CC's, BSI channel and if needed protected channel based on different system requirement's, that can be wide ranging on the decision.
If the system is simulcast may have a bearing on this also.
So it would just be better to have the control and alternate frequency programmed in on a P25 phase 1 system? Thanks for all that input.
 

hitechRadio

Member
Joined
Dec 23, 2010
Messages
556
So it would just be better to have the control and alternate frequency programmed in on a P25 phase 1 system? Thanks for all that input.
It is just a waist of time ,,,IMO to put in the voice channels (BLACK). But yes just alternate and primary is what I would do.

There is a lot more that an admin can do in the system and the subscriber that I did not mention, but generally is not something the scanner user needs to know for proper operation.
 
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