Can any of you scan Joplin?

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I just got a 396xt to try scanning Joplin's P25 system and have had nothing but problems. The problem is that I only hear half the conversation. I mainly hear the mobile units but usually can't hear the dispatcher (even though I know they're transmitting because I see their UID come up when they Tx.

I've had people look at all my freescan settings, double check my settings, and give me things to try, and nothing has worked. So I'm curious if anyone has recently scanned their system. The reason I ask is because I did come across a thread where someone had a similar problem on a Mot II/P25 system (which I beleive is what joplin is) using a 396xt, and appearently Uniden's response was that system could not be scanned, so I'm wondering if anyone around Joplin has been able to scan them properly, and if so, what you're using. I understand it was recently rebanded and I'm wondering if they made any other modifications to the system besides just the rebanding.
 

spooney

Member
Joined
Dec 19, 2002
Messages
424
Location
Indiana
According to the FCC database, Joplin has two transmitter locations that broadcast simultaneously. Site 1 is located near RT 60 & Schifferdecker and the freq's assigned there are:
851.0125
851.2500
851.7500
852.2500
852.7500
856.4875
857.4875
858.0125
858.4875
859.4875
Site 2 is located at 303 E. 3rd St. and the freq's assigned there are:
851.5125
856.4875
857.4875
858.0125
858.4875
859.4875

This means you would need to set up a multi-site system in your 396xt and only scan which ever one you receive the strongest signal from.
I hope this helps.
 
Joined
Mar 26, 2010
Messages
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According to the FCC database, Joplin has two transmitter locations that broadcast simultaneously. Site 1 is located near RT 60 & Schifferdecker and the freq's assigned there are:
851.0125
851.2500
851.7500
852.2500
852.7500
856.4875
857.4875
858.0125
858.4875
859.4875
Site 2 is located at 303 E. 3rd St. and the freq's assigned there are:
851.5125
856.4875
857.4875
858.0125
858.4875
859.4875

This means you would need to set up a multi-site system in your 396xt and only scan which ever one you receive the strongest signal from.
I hope this helps.
You sir may just be the answer to my prayers! : ) I'm not where I can look at the radio right now, but multi-site or multicasting systems seems to be the common denominator for people experiencing similar problems as mine. Do I need to do something special when setting up the system, or do I simply add another site to the existing system and make sure the freqs belong to the appropriate site?
 

spooney

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Dec 19, 2002
Messages
424
Location
Indiana
Yes, just set up one system with two sites and assign different SQKey numbers so you can easily turn off one or the other as needed. You should be receiving two different control channel freq's and if you are please post them here for everyone else. The R/R Database for Joplin needs to be updated.
 

SCPD

QRT
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Feb 24, 2001
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Location
Virginia
Don't program 851.0125 or 851.5125 in. Those are 800Mhz mutual aid channels that are conventional. They should not be part of the trunking system
 
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Messages
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Don't program 851.0125 or 851.5125 in. Those are 800Mhz mutual aid channels that are conventional. They should not be part of the trunking system
Hmm.... Well a quick google search seems to confirm these are mutual-aid freqs, but if I omitted them, then the frequencies for the two different joplin sites would be the same, one would just have a few more than the other. Does this still sound right? Will the scanner still be able to differentiate between the sites if programmed this way? I won't be near the scanner for a while or I'd just try it and see if it works.
 

steener

Member
Premium Subscriber
Joined
Dec 19, 2002
Messages
59
Location
SW Missouri
I have a FreeScan file for Joplin's P25 system that I can email you to see if that works. I have no problem monitoring them, except for the encryption they started using a while back. Below is a CSV export from FreeScan showing how I have the system setup. If I can help any further please let me know.

Regards,
Paul

Name Freq/ID Lockout Tone Modulation Comment Group System
Quick Key: 3
Latitude:
Longtitude:
Range (Miles):

856.4875 0 NONE
857.4875 0 NONE
858.4875 0 NONE
859.4875 0 NONE
860.4875 0 NONE
866.0125 0 NONE
866.25 0 NONE
866.5125 0 NONE
866.75 0 NONE
867.0125 0 NONE
867.25 0 NONE
867.5125 0 NONE
867.75 0 NONE
868.125 0 NONE
851.75 0 NONE
852.25 0 NONE
852.75 0 NONE
858.0125 0 NONE
868.0125 0 NONE
Quick Key: 1
Latitude:
Longtitude:
Range (Miles):

All Call 101 Off Police Joplin P25
Patrol 1 103 Off Police Joplin P25
Records 28/29 105 Off Police Joplin P25
Patrol 2 107 Off Police Joplin P25
Car-Car 109 Off Police Joplin P25
Traffic (Ch 5) 111 Off Police Joplin P25
Patrol 3 113 Off Police Joplin P25
SWAT 1 115 Off Police Joplin P25
SWAT 2 117 Off Police Joplin P25
Task Force 119 Off Police Joplin P25
Drug 1 121 Off Police Joplin P25
SRO 123 Off Police Joplin P25
Detectives Ops 1 125 Off Police Joplin P25
Detectives Surv 127 Off Police Joplin P25
PD ACU 1 129 Off Police Joplin P25
PD ACU 2 131 Off Police Joplin P25
Quick Key: 2
Latitude:
Longtitude:
Range (Miles):

All Call 201 Off Fire Joplin P25
Dispatch 203 Off Fire Joplin P25
Command/Ops 205 Off Fire Joplin P25
Fire 2 207 Off Fire Joplin P25
Fire 3 209 Off Fire Joplin P25
Fire 4 211 Off Fire Joplin P25
Fire 5 213 Off Fire Joplin P25
Fire 6 215 Off Fire Joplin P25
Fire 7 217 Off Fire Joplin P25
Fire 8 219 Off Fire Joplin P25
Fire ACU 221 Off Fire Joplin P25
Administration 223 Off Fire Joplin P25
Training 225 Off Fire Joplin P25
Quick Key: 3
Latitude:
Longtitude:
Range (Miles):

Med ATG 301 Off Medical Joplin P25
Med Dispatch 303 Off Medical Joplin P25
JASCO 305 Off Medical Joplin P25
METS 1 307 Off Medical Joplin P25
CDC 315 Off Medical Joplin P25
NCAD 1 317 Off Medical Joplin P25
NCAD 2 319 Off Medical Joplin P25
NCAD Command 321 Off Medical Joplin P25
St Johns ER 323 Off Medical Joplin P25
Freeman ER 325 Off Medical Joplin P25
Med Flight 327 Off Medical Joplin P25
Quick Key: 4
Latitude:
Longtitude:
Range (Miles):

Health 433 Off Joplin City Joplin P25
Health 1 435 Off Joplin City Joplin P25
Animal Control 437 Off Joplin City Joplin P25
Pub Wks All Call 401 Off Joplin City Joplin P25
Common 1 403 Off Joplin City Joplin P25
Common 2 405 Off Joplin City Joplin P25
Common 3 407 Off Joplin City Joplin P25
Common 4 409 Off Joplin City Joplin P25
Engineering 411 Off Joplin City Joplin P25
Streets 413 Off Joplin City Joplin P25
Garage 415 Off Joplin City Joplin P25
Waste Water 419 Off Joplin City Joplin P25
O Maps 421 Off Joplin City Joplin P25
Transit 423 Off Joplin City Joplin P25
PW 1 425 Off Joplin City Joplin P25
PW 2 427 Off Joplin City Joplin P25
Parks/Cemetery 429 Off Joplin City Joplin P25
PW Ops 431 Off Joplin City Joplin P25
Golf Course 0 Off Joplin City Joplin P25
Quick Key: 5
Latitude:
Longtitude:
Range (Miles):

All Call 501 Off MSSU Joplin P25
Crimes/Security 503 Off MSSU Joplin P25
Maint/Phys Plant 505 Off MSSU Joplin P25
Security 507 Off MSSU Joplin P25
Quick Key: 6
Latitude:
Longtitude:
Range (Miles):

Ch 1 227 Off Airport Joplin P25
Ch 2 229 Off Airport Joplin P25
 
Last edited:
Joined
Mar 26, 2010
Messages
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Well after seeing Steener's comment about their use of encryption, and after going and changing my display modes, there it was. ENC. I'd been using mode 3 because I want to see the UID's, but appearently it doesn't show ENC in mode 3.

So anyway, Joplin dispatch and a few other units are definately encrypted. Kinda blows because Joplin was the biggest reason I bought my XT. And not just to listen to them Firefighters : )

IDK if there's a way to notate that on the RadioReference page for Joplin, MO but it would be really helpful if an Admin or someone could because it would have saved me a lot of time, sleep, and pepto bismal.
 
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