Need help converting Hex to Dec for Uniden programming

[Searay]

I am having a little problem following how to convert from Hex format to Decimal format. I have read the WIKI page which explains it and it says to use the following formula.

* Convert the M3 format ID, A39 to U format:

Hex_to_Dec(A39)*16 => 2617*16 = 41872

I convert the A39 from HEX to DEC using windows scientific caluculator. When I convert it I get 2617. Then I follow though and multiply by 16 and I get 41872. This formula follows what is listed below from the DB from the Charlotte/Mecklenburg (NC) TRS.

DEC HEX Display Description

656 029 EVENT-1 Event 1 EOC
688 02b EVENT-2 Event 2 CFD
720 02d EVENT-3 Event 3 Medic

Now I look at couple talkgroups from the York County (SC) TRS.

DEC HEX Mode Description

26460 675c D Radio Testing
26461 675d E Radio Testing
46001 b3b1 D Motorola Testing


The HEX converted to DEC here appear to be different. When I take 675c and convert to DEC with the scientific calculator I get 26460. If I follow the formula and multiply by 16, then it's way off. Why did they not multiply by 16 here?

Any help appreciated.

Matt

 

[SouthSoundScanner]

Try this site.
http://www.parkenet.com/apl/HexDecConverter.html

 

[Searay]

I tried the link. I get the same results and discrepency as I do following the formula on the WIKI page.

?????????

 

[Scan-Denver]

Try this one !

 

[Dave_D]

The Charlotte/Mecklenburg TRS is a Motorola Type II Smartzone system, whereas the York County TRS is an APCO-25 system. The aforementioned wiki and calculators do not account for APCO-25 systems which, BTW, employ a straight hex-to-decimal conversion, as you've already figured out.

I hope this answers your question.

Dave

 

[Searay]

Thanks Dave. That's the answer. I did not know that the type 2 and APCO 25 used the different format. That makes things jive a little better.

Matt

 

[crayon]

The aforementioned wiki and calculators do not account for APCO-25 systems which, BTW, employ a straight hex-to-decimal conversion, as you've already figured out.

I hope this answers your question.

Dave

Could you please update the wiki for everyone.

 

[Dave_D]

Done.

Could you please update the wiki for everyone.

Done.