display question

[kc9neq]

while monitering the military air system in the bcd996t. the scanner stopped on military air freq 380.5750 and displayed "dat".
what is "dat"
does this indicate a data transmission?
why was i unable to hear the transmission?

 

[wise871]

Check this post, should answer your question.
http://www.radioreference.com/forums/showthread.php?t=65105&highlight=DAT

You must live near a military base. When you get in the 380.0000 to 399.9875 range, you monitoring a Land Mobile Radio (LMR) system. They use Control Channels so you have to search the range and find what the control channels are. What area are you in? I'm sure some with more experance can talk you through Control Channel search so you can find them. Then you will be able to hear what is being said.

 

[kc9neq]

i am in the st louis metro area. near scott af base. i looked at the link you sent. i still dont know how to find the control channel.

 

[wise871]

Do you know how to do a Custom Search with your 996 yet?

 

[kc9neq]

no never had to do one. i guess its in the manual?

 

[wise871]

What you can do to start off is, read on how to do a Custom Search. Then you can practice by setting up Custom 1 to search 380.0000 to 399.9875.

I'm not the best when it comes to giving details on how to do it, I just know how from months of practice.

 

[kc9neq]

i set up a custom search from 380.0000 to 399.9875 and set the control channel to off. the scanner locked on 380.5750 and displayed "dat" but i did not hear any audio.

i then changed the control channel to on and the scanner locked on 380.5750.
the scanner displayed the following:
sid: 0010h - 0404
id: _ _ _ _ _ _ _
380.5750
i still did not hear any audio.

i have no idea what the above display means.
any help would be appreciated

 

[ChargerSRT8]

Create a system and enter the frequency you found as the control channel. Set id mode to search. See if this heips. I am in your area and am getting some hits doing this with the frequency you posted.

 

[kc9neq]

i tried your suggestion but i still could not hear any audio. i did an fcc search for the freq and could not find any info. have you been able to hear any audio?

 

[ChargerSRT8]

Yes, with a talk group id of 1641. Did you set it up as an APCO 25 system?