SDS100/SDS200: Close call frequency from wav file

[deim]

Hi there!

Guys, need help.

Some times i take with my sds100 on bike trip and put it into my backpack. So i didn't view display. Occasionally some interesting radio transmission catch in CC.

All radio transmitting recorded in scanner. After copied all wav files to my laptop i can`t view frequency on CC hits.

How can i view this info?

 

[doctordialtone]

How can i view this info?

Review this:

 

[deim]

Review this:

Sorry, but where in this video i can see how to view frequency info from close call wave file on PC?

 

[Ubbe]

If you have manually started recording, Fn+Replay, it should record everything it receives to wav files.
There's no special setting for closecall. If it didn't record anything of the closecall hits it must be a firmware problem.

/Ubbe

 

[deim]

ok, i know how to replay it on device and frequency show on screen. But if you copied wav files to your PC you can`t see frequency or other params of CC(like CTCSS, DCS, NAC etc.).
I think this info write into the wav file, but i don't know how to see this information on windows 10 based PC.
Can anyone explain to me, how to view this information on a computer?

 

[SteveSimpkin]

You might try Media Monkey. I don't know if it will display the frequency but it may. This post (#12) has more info information:

Sentinel Software question

If this has been requested/brought up before then please accept my apologies ahead of time, I couldn't find any topics when I did a search for it. If I may suggest, to add a feature in the Sentinel software, similar to Whistler's EZ-Scan with the TRX models, in regards to recordings maybe add...

forums.radioreference.com

 

[Ubbe]

Open the wav file with Notepad and have the line wrap option to On and you'll see the frequency about 10 lines down, immediatly followed by FM or NFM together with all other information like the GPS position.

/Ubbe

 

[deim]

Wow! All information about frequency locate in wav file. Is this structure same for all kinds of wav( generated by sds100/436/536) files?

 

[deim]

Close call hits write wav file with this structure:

offset from file beginning: 600 bytes.
length: 20 bytes
value in hex: 43 6C 6F 73 65 20 43 61 6C 6C 00 43 43 20 46 6F 75 6E 64 21
frequency write as hex value on bytes from 668 to 671
Custom search hits write wav file with this structure:

where frequency write as hex value on bytes from 668 to 671
maybe frequency offset are wider (667-673 bytes offset) need some additional tests to confirm this.

It seems it's time to write a program for parsing saved WAV files.

 

[Ubbe]

You are correct. It is 4 bit decimal values starting with high nibble at 668 dec or 29C hex with the 1000MHz value. The CloseCall and Search wav files are totally different from "normal" frequencies which are starting at 1136 dec or 470 hex but can also be found as plain ascii digits at 816 dec or 330 hex. A parsing program must be able to detect two different formats.

/Ubbe

 

[Firekite]

To confirm, is this the same format used by the x36HP?

 

[deim]

To confirm, is this the same format used by the x36HP?

yes it is correct

 

[deim]

Pre-alpha version work.

 

[Firekite]

Sorry if I’m being dense, but I don’t see frequency and tone (if applicable) or digital info or other details being written to the areas you’re highlighting with Close Call. Are those details recorded in the WAV file data?

 

[deim]

frequency in this close call wav file: 017235000 in normal view 172.350 Mhz
i haven`t got any digital close call wav files. If you send me some examples i show you were frequency and other parameters bytes.

 

[RF23]

If you search this site using the words "Wave Player" you should find several wave players that should give you what you want.

Just remember to check them for malware as such small utilities are prime candidates to be contaminated.

I am using two, one that is in black & white and the other one presents a color screen like the HP-1 has. However, it gives me all I need even with wav files from scanners other than the HP-1.

 

[deim]

If you search this site using the words "Wave Player" you should find several wave players that should give you what you want.

In ideal situation i want to write my own wav player with custom columns which consist frequency, ctcss, dcs and other radio parameters.

 

[Firekite]

i haven`t got any digital close call wav files. If you send me some examples i show you were frequency and other parameters bytes.

I’ll happily do so, but I don’t know for sure whether or not I have had recording turned on when I’ve had digital close calls. I’ll poke around at it soon, but in the meantime is there any known way to search for close call wav files in windows, where I have all my recordings dumped to a directory on my hard drive? I know some meta info is provided like the system name. Would I be able to search for artist (or other field) of “Close Call” to find only those candidates out of the thousands of recorded wav files?

 

[deim]

I’ll happily do so, but I don’t know for sure whether or not I have had recording turned on when I’ve had digital close calls. I’ll poke around at it soon, but in the meantime is there any known way to search for close call wav files in windows, where I have all my recordings dumped to a directory on my hard drive? I know some meta info is provided like the system name. Would I be able to search for artist (or other field) of “Close Call” to find only those candidates out of the thousands of recorded wav files?

CloseCall.exe
this is very very simple program which can help you to find Close call files in your wav files archive.
After start this program you must write directory with uniden wav files.
like this D:\radio rec or d:\radio rec or c:\temp etc.
after this program shows you where saved log file
after this shows all close call files
shows total wav files in directory with sub directories
and that's all)))
in directory that you write in first step now you can find file "CloseCallFiles.txt"
which contains info like this:
d:\radio rec\4EC82BAF\test\2019-04-06_11-53-53.wav
d:\radio rec\4EC82BAF\test\2019-04-26_14-45-38.wav
d:\radio rec\4EC82BAF\test\2019-04-26_14-55-26.wav
d:\radio rec\4EC82BAF\test\2019-04-26_14-55-36.wav
d:\radio rec\test\2019-04-06_11-53-53.wav
d:\radio rec\test\2019-04-26_14-45-38.wav
d:\radio rec\test\2019-04-26_14-55-26.wav
d:\radio rec\test\2019-04-26_14-55-36.wav
this is your close call files.

Tested on windows 10. writed on c#. Not completely tested. may not run at all PC.
Not realized directory check. If you write incorrect directory program may hangs.

 

[Firekite]

CloseCall.exe

Sorry for the delayed response. It does seem to work, though it appears exclusively to generate a list of files, no data from them. I grabbed one at random and saw this meta data displayed by Windows:



I used HxD to view the raw data, and it appears that the only info I know how to read is ID:1031, but it's not clear what site (there's only one in this example but not explicitly included) or frequencies were involved or encoding or whatever else. I believe for this particular example it was encrypted anyway, but I'm just trying to learn more about what data is recorded rather than actually care what the contents of the audio are.

RIFFp‘��WAVELIST<��INFOIART@���United States Air Force (3D6)�Field�����������������������������IGNR@���Unknown� Air Force Base�����������������������������������������INAM@����ecurity Forces 1� Information Service (ATIS) VHF���������������ICMT@�������������������������������������������������������������������IPRD���BCDx36HP��������IKEY�����
ÿÿÿÿÿÿÿÿ���ÿ�������ICRD���20190725225820��ISRC�������������������������25ITCH@����ID:1031�11�����������������������������������������������������ISBJ@���Lackland��������������������������������������������������������ICOP���****************unid���Close Call�CC Found!� Press Any Key�All Band Off!�Memory Check  ����‰ ����������������������„@����������������

Included the above just in case it makes anything easier.


Here below is another one from analog that appears to not include frequency data but does include CTCSS?

ICMT@�������������������������������������������������������������������IPRD���BCDx36HP��������IKEY������ÿÿÿÿÿÿÿÿ���ÿ�������ICRD���20190710121828��ISRC���CTCSS:186.2Hz���������RVITCH@����ID:396�6�������

Same with another known analog (I know where this one came from)...

ICMT@�������������������������������������������������������������������IPRD���BCDx36HP��������IKEY������ÿÿÿÿÿÿÿÿ���ÿ�������ICRD���20190717115448��ISRC���CTCSS:203.5Hz���������25ITCH@���

I guess in the end I was hoping that if I got a Close Call alert while recording, I could go back later and find out what the details were of the alert, including any frequencies and tones, type (ProVoice? Analog? P25?) TG IDs, etc. Am I just not sophisticated enough to tell what I'm looking at (likely!) or is it something else?

Thanks!