[TrunkCom] Rebanding has begun on Motorola trunked systems

Thu Mar 20 20:18:15 EST 2008

Hi Jeff,

No, there have not been any firmware updates for rebanding to date for 
the PRO-96/2096 and only the DSP can be firmware flashed. If a CPU 
firmware was required, a trip to the service center would need to be 
made for a logic and display board replacement. That is, if Radio Shack 
would support such an upgrade. This is the reason that the custom 
frequency tables were added to the original firmware.

If your talking about MPSCS rebanding, some of the sites do show up in 
the FCC database under YE with new frequencies, however nothing has 
happened yet. Keep in mind true P25 systems are implicit should be able 
to be tracked without a firmware upgrade, because the site frequencies 
are populated via the control channel, so the newer trunking scanners 
can populate the frequency table from the control channel data.
http://www.aeroflex.com/products/commtest/pmr/appnotes/P25ControlChannelFunctions.pdf

In rebanding, only the Motorola analog and mixed mode systems (3600 baud 
systems) are a problem for trunking scanners. EDACS and LTR systems only 
need to be reprogrammed for the correct Logical Channel Number and will 
continue to work in all trunking scanners. P25 9600 baud systems are as 
I described above.

Jeff Kenyon wrote:
> Isn't there a firmware update to the Pro-96 for rebanding, and what is the
> status of it in Michigan?
>
>
>
>
>
> On Thu, 20 Mar 2008, David McCormick wrote:
>
>   
>> Some rebanding developments have been made by Wayne H.:
>>
>> Radio Shack Trunking Scanners with programmable tables:
>>
>> Here is the table to program:
>>
>> ChLO ChHI Step Offset Base
>>
>> 440 559 25.000 440 851.025000
>>
>> 000 719 25.000 0 851.012500
>>
>> 720 759 25.000 0 848.000000
>>
>> 815 831 25.000 0 846.625000
>>
>> 958 958 25.000 958 868.975000
>>
>> 961 1022 25.000 0 843.400000
>>
>> This is meant to support systems whether they are in the process of
>> transitioning from 866MHz freqs or have already switched over and only
>> use 850MHz frequencies. The two systems which have been mentioned in
>> other threads on RadioReference (Alabama and Vacaville, California) have
>> made complete transitions. Vacaville specifically was using 866 and
>> immediately moved off them to the 850MHz freqs.
>>
>> To simplify programming, if your system has rebanded and does NOT use
>> any frequencies above 862MHz you only need to program the two ranges below.
>>
>> ChLO ChHI Step Offset Base
>>
>> 440 559 25.000 440 851.025000
>>
>> 000 719 25.000 0 851.012500
>>
>> GRE America Trunking Scanners:
>>
>> The GRE scanners will support rebanded Motorola 3600 trunked systems.
>> This is done by setting up a custom table for the system object
>> ("TSYS"). I believe there are certain GRE models that do not have
>> programmable custom tables (100 and 200?) so unfortunately this solution
>> may not work for you. If someone can provide more information I'll
>> update my post accordingly.
>>
>> To update the custom tables for the GRE radios you need to navigate to
>> the system object. To get there via a TG hit PGM, EDIT, CURR, down arrow
>> once to select the TSYS, ENT, press FUNC then down arrow to jump to the
>> bottom, arrow up once to highlight "T Tables", use left or right arrow
>> to choose "Custom", and then ENT. You now will have access to each line
>> of the custom table where you'll input the information given in the
>> linked thread above. Press SEL and then type in the values. Make sure
>> they are done in order. When complete press "Save" each time to make
>> sure each stage is properly stored. Now you're ready to go!
>>
>> Please post programming questions in this forum. To help others, do not
>> PM me with questions. Thank you.
>>
>> Uniden scanners:
>>
>> You will need to wait for a firmware upgrade if they provide one for
>> your specific model. These models do not currently support custom tables.
>>
>>  >Pass the word, at least two systems have been discovered to be using
>> newly rebanded frequencies and no longer are being trunk scanned
>> correctly using the current trunking scanners.
>>     
>>>> Albertville, Alabama:
>>>> http://www.radioreference.com/apps/db/?sid=1462
>>>> Vacaville, CA:
>>>> http://www.radioreference.com/apps/db/?sid=778
>>>>
>>>> Please report in to Raioreference if you are seeing
>>>> this on your local
>>>> Motorola analog or mixed mode system:
>>>>
>>>>
>>>>         
>>> http://www.radioreference.com/forums/showthread.php?t=100058
>>>
>>>       
>>>> If you can log the system using UniTrunker or
>>>> Trunker it would also be
>>>> helpful to the cause.
>>>>
>>>> Here are some resources:
>>>> http://wiki.radioreference.com/index.php/Rebanding
>>>> http://www.radioreference.com/apps/db/
>>>> http://www.800ta.org/content/800Mhz/call_sign.asp
>>>>
>>>>
>>>>         
>>> http://wiki.radioreference.com/index...Radio_Decoders
>>>
>>>       
>>> <http://wiki.radioreference.com/index.php/Trunked_Radio_Decoders>
>>>
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