Dekalb Co. going turbo?

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KK4ELO

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I heard today that Dekalb co may be going TRBO. I dont know how to look up the licensing through the FCC to find out on my own. I know they have been doing ALOT of test the last couple weeks. Could they be upgrading to be with White and Putnam counties mutual aid?
 

TRamrod38

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KK4ELO,

They have some new frequencies that they registered on 7-7-14 but the emission designator 11K2F3E that is listed for them is analog transmission with a callsign of KGJ855. Frequencies that are listed 154.755 155.370 155.685 154.710 156.015 158.910 Hope this will help you.
 

KK4ELO

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Ok thanks. Thats what I needed to know. With so many agencies going trbo around here, i had to make sure. I guess one of these days I'll wind up buying one of the new Vertex everge just to get some of my monitoring back. Everywhere you look lately, someone else has switched.
 

milf

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154.755 LETS VHF, 155.3700 Nationwide Intercity, 155.685, and 154.7100 would be best bets to monitor. I will take a look at the license and see which is repeater etc... Looks like probably just reup of freqs to narrowband.
 

jimg

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Ok thanks. Thats what I needed to know. With so many agencies going trbo around here, i had to make sure. I guess one of these days I'll wind up buying one of the new Vertex everge just to get some of my monitoring back. Everywhere you look lately, someone else has switched.
Will this radio receive TRBO and what is the cost?
 

bc780l

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A good radio for receiving/scanning DMR directly is the CS700 or CS701 available at Untitled Document for about $200, including software and cable. You have to know the Color Code, Time Slot, and Group ID for each channel, however, to program the radios, not to mention to INHIBIT transmit! On trunked systems simply scan all the system channels--won't be like a regular scanner, but something is better than nothing (unless it's encrypted).

Don't know the CC,TS,GID? Then tap a receiver and run DMRdecode on your PC or DSD+.
 

KK4ELO

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What all is needed to run dmrdecode? I only have a laptop with window home 7 and a vx7r. If a scanner is needed, thhen i guess im out. There is a thread containing all of putnam co. info, by the guy running the system i think, but white co may be a different story.
 

milf

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"While we are not ready to transition to a digital radio network at this time, this equipment prepares the 911 center as well as the agencies we serve to transition to a fully digital radio system in the future."

None for this year. All licenses are analog narrowband. Maybe in a couple of years they will go digital, but currently there is no switch happening. They are getting new radios that are digital capable and new paging system, as well as new system monitoring gear.

Here is the meaning for the Emissions Designations.
4K00F1D 6.25 kHz data NXDN (IDAS, NEXEDGE)
4K00F1E 6.25 kHz voice NXDN (IDAS, NEXEDGE)
4K00F1W 6.25 kHz voice and data NXDN (IDAS, NEXEDGE)
4K00F2D 6.25 kHz analog CW ID NXDN (IDAS, NEXEDGE)
7K60FXD 2-slot DMR (Motorola MOTOTRBO) TDMA data
7K60FXE 2-slot DMR (Motorola MOTOTRBO) TDMA voice
8K10F1D P25 Phase I C4FM data
8K10F1E P25 Phase I C4FM voice (P25 mode in RadioReference.com Database)
8K10F1W P25 Phase II subscriber units (Harmonized Continuous Phase Modulation – H-CPM)
8K30F1D 12.5 kHz data NXDN (Wide IDAS, NEXEDGE)
8K30F1E 12.5 kHz voice NXDN (Wide IDAS, NEXEDGE)
8K30F1W P25 Phase I C4FM hybridized voice and data applications (most commonly seen on trunked licenses)
8K30F7W 12.5 kHz voice and data NXDN (Wide IDAS, NEXEDGE)
8K50F9W Harris OpenSky (2 slot narrowband)
8K70D1W P25 Linear Simulcast Modulation ASTRO (9.6 kbps in 12.5 kHz channelspace)
9K70F1D P25 Linear Simulcast Modulation “WCQPSK” data (per Harris MASTR-V literature)
9K70F1E P25 Linear Simulcast Modulation “WCQPSK” voice (per Harris MASTR-V literature)
9K80D7W P25 Phase II fixed-end 2-slot TDMA (Harmonized Differential Quadrature Phase Shift Keyed modulation – H-DQPSK), per Motorola literature
9K80F1D P25 Phase II fixed-end 2-slot TDMA H-DQPSK data, per Harris MASTR-V literature
9K80F1E P25 Phase II fixed-end 2-slot TDMA H-DQPSK voice (interpolation of MASTR-V literature)
11K2F2D Audio frequency shift keying within a 12.5 kHz channelspace (commonly used for 1.2 kbps packet, FFSK station alerting, and AFSK outdoor warning siren signaling)
11K2F3D DTMF or other audible, non-frequency shift signaling, such as Whelen outdoor warning sirens or “Knox-Box®” activation
11K2F3E 2.5 kHz deviation FM "narrowband 12.5 kHz" analog voice (FMN mode in RadioReference.com Database - may also be 11K0 and 11K3 bandwidth) This is what the County Licenses all show.
 
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