AL-DPS: Trooper Post Channel Change

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Steve

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Thanks Ken, "strange" set-ups from DPS doesn't surprise me.
Alex City "appears" to be Base 155.505 (no tone so far and bad modulation or low volume) and Cars 159.210 tone 131.8 (so far will keep check to confirm). I haven't heard Opelika Post today, so the search for them continues.
 

joejo95

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Opelika Base is 158.790 and Cars is 159.030 (tone 173.8).
Also I heard Car to Car talk on 154.9125 (no tone) today. New freq from puzzleriddle list thanks again.
 
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Steve

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Thanks joejo95. I'm "sure" Opelika is loving sharing a frequency with Jacksonville. Jacksonville could (and probably still can) even blast Dothan. One note about 154..9124, you may actually be hearing 154.920. I ran into a problem using the splinter frequencies. Here in Tallapoosa Co, 155.4975 gets wiped out by a "local" (Coosa Co) agency even after setting the scanner for NFM. And to make matters worse this agency is running Mototrbo on 155.490.
 

joejo95

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I was thinking the same thing Steve about154.920. It has always been in my file because they use it for
car to car talk around here. But I checked and it was only on 154..9125 I was picking up traffic. I have a trooper that lives down the road from me and pick them up very clear.
 

Steve

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Ok joe. I'll give 9125 a shot around here also. Maybe DPS has "finally" decided to go 20th century.
I just hope DPS doesn't try to use 155.4975 around here.
 

RadioJonD

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When DPS licensed the splinter frequencies way back when, Steve & I immediately noticed that the new frequencies were on either side of long licensed/used DPS frequencies. We just figured that was the DPS way to lessen the chances of interference should other agencies acquire them.

Sooner or later the added splinters may factor into future communication plans. Maybe DPS is starting toward that now. Conceivably there are enough licensed frequencies for each post to have its own channel pair. Certainly the geographical distance between existing pairs can be increased leaving room for tactical frequency use.

From the information we have so far I think we can safely assume that DPS-3 (or whatever it may be called now) has been changed from a one frequency simplex (155.505) to a two frequency simplex pair of 155.505/159.210 with various tones. To my knowledge DPS-3 was only used before on a regular basis by the Quad*Cities Post in NW Alabama. For a short period DPS-3 was used remotely by the Mobile Post for coverage in the former Grove Hill Post area. (I know this from the pre-tone days when I would occasionally hear Grove Hill cars over the Quad*Cities radio.)

Since 159.210 was (is?) used statewide as a tactical channel, we may very well see splinter frequencies being utilized for that purpose. DPS may also create additional Dispatch/Car channel pairs from them.
 

Steve

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RJD, gotta "love" our old department. Took this long to move to the 20th century. And for sure Jacksonville need their own channel pair far away from everyone else (sorry can't resist).
 

puzzleriddle

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I can recall back in my earlier scanning days DPS post in MGM post was Mobile 155/445 Base 155.475
and. DPS ABI was 155.505 and state capitol security was on 155.5215 PL 141.3 & 460.150 PL 141.3 & ABC Board 154.770. :) I've always thought a statewide VHF Trunking system would be good for them.
just realize the "new' 155.4875 I have as below
0450 AL DPS-new 8 155.482500 AU
0845 VLAW 32 155.482500 AU SRCH
0596 New natl VHF LAW 155.487500 NFM SRCH
Also been picking a 141.3 a bout once a week . just figured it was some small city etc around here. had forgot it was also marked as DPS new channel
 
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KEV200

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Earlier Days

I can recall back in my earlier scanning days DPS post in MGM post was Mobile 155/445 Base 155.475
and. DPS ABI was 155.505 and state capitol security was on 155.5215 PL 141.3 & 460.150 PL 141.3 & ABC Board 154.770. :) I've always thought a statewide VHF Trunking system would be good for them.
just realize the "new' 155.4875 I have as below
0450 AL DPS-new 8 155.482500 AU
0845 VLAW 32 155.482500 AU SRCH
0596 New natl VHF LAW 155.487500 NFM SRCH
Also been picking a 141.3 a bout once a week . just figured it was some small city etc around here. had forgot it was also marked as DPS new channel
Speaking of earlier days, I remember when they were on 44.62 Simplex statewide.
 

RadioJonD

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Perhaps the new leadership in the Comm Shop is working to make the most of their current resources
Good observation!

Speaking of earlier days, I remember when they were on 44.62 Simplex statewide.
Don't know if I would have told that, KEV2000! ;)


When I stared monitoring and subsequently began working for DPS, the entire state used 155.475/155.445 as the sole channel pair. The Decatur post could hardly squeeze a word in sideways (though they tried hard) between Huntsville & Quad*Cities so for a short time (before the additional channel pair was added) Decatur got moved to 155.100 simplex car and base.

The additional channel pair and the realignment of 155.445 to 154.920 was the result of 155.475 being designated as a national police frequency (now V-LAW-31). AL-DPS was instantly Interoperability before interoperability was cool! That's about as far as they got with it unless you count the five 800 MHz interop frequencies programmed in the early moble extenders.

From 1980, GE four channel radios:

Channel 1 – 155.445/155.475
Channel 2 – 155.475 (car to car)
Channel 3 – 155.010 (Alabama Network)
Channel 4 – 159.465 (Game & Fish Enforcement) or local agency channel.

The ABI Division, of course, was proud of their exclusive Channel-4 (later Channel 8), 155.505. Pot chopping was king on that frequency in season!
 
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