hex & decimal confusion

[gtor72]

I am trying to figure out how this hex and decimal thing works.
I am trying to figure out what to do after i get the numbers.
I have a Dec 3081, and a Hex C09.
I know the Octal is 6011. The quintal is 44311, and the binary is 110000001001.
So what am i missing to get a frequency or a talk group from this information. I know the part about adding 800.000, but that gives me an invalid frequency.
So i must be missing a step here somewhere,
I see the formula on one of the pages on this site, but I only took basic math in high school HELP!!!!
thanks for any help someone can provide me. Mike
hope this is posted in the right area.

 

[W4KRR]

Most talkgroup information you find listed will be in decimal, because that is what trunk tracking scanners use. I believe Motorola specifies their talkgroups in hexadecimal format. If you have a listing of talkgroups in hex format, you can convert them to decimal format using the calculator that comes with Microsoft Windows. Be sure to set the view to "scientific" mode. Take the hex number, put a zero at the end of it, and use the calculator to convert it to decimal.

Does this answer your question?

 

[gtor72]

kind of helps

when i use the hex number c09, i come up with 849.296. this isnt a valid frequecy. so am i close? how do i know which way to round up or down?
or am I still way off? thanks Mike

 

[mdulrich]

The numbers you are looking at don't have anything to do with the frequency, they are talkgroup numbers.

Mike

 

[W4KRR]

Like Mike said, c09 is a talkgroup number in hex, not a frequency. Frequencies are not expressed in hex format.

Take the hex number, in this case, c09. Add a zero to the end, and you have c090. Use the Windows calculator in scientific view, and convert it to decimal, and you get 49296, which is a valid Motorola talkgroup number.

 

[Pro-95]

>>>> Convert from HEX-DEC-AFS-BIN <<<<
Online converter.

 

[gtor72]

got it!

i got it figured out now. thanks so much for the help. i found that website that was posted in the previous post, and another that has a converter.

 

[kikito]

>>>> Convert from HEX-DEC-AFS-BIN <<<<
Online converter.

That's a good converter, however, it doesn't work properly with P25/9600 talkgroups which yield some weird results and should be like the following:

Uniden: 29983
Motorola 3: 751F
Motorola 6: 829983

or

Uniden: 21203
Motorola 3: 52D3
Motorola 6: 821203

Just thought I point that out for people out there with the newer systems....

 

[loumaag]

Just thought I point that out for people out there with the newer systems....

It isn't designed for APCO P25 systems. The page only addresses EDACS and Moto Type II conversions.

 

[mikey60]

P25 systems are a straight Hex <--> Decimal conversion. It's an Integer type within the data stream.

Mike

 

[kikito]

P25 systems are a straight Hex <--> Decimal conversion. It's an Integer type within the data stream.

Mike

Yes, and to get the Motorola 6 format just add an 8 in the front and some zeroes if the TG is less than five digits and so on....

I mentioned that it won't work with P25 systems since the conversion page doesn't mention it and to save some time to the people or newbies that don't know about it....

 

[Pro-95]

Yes, and to get the Motorola 6 format just add an 8 in the front and some zeroes if the TG is less than five digits and so on....

I mentioned that it won't work with P25 systems since the conversion page doesn't mention it and to save some time to the people or newbies that don't know about it....

Ack, need more digits. I'll see what I can do.