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Voice/Control Channel Decoding Software - For discussion of software applications which decode digital voice formats and trunking control channels. Please use the HF Digital Signals forum for anything below 30MHz.

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  #21 (permalink)  
Old 02-01-2011, 10:04 AM
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Quote:
Originally Posted by mel1718 View Post
Thats incorrect, DSD works very good with Ubuntu 10.04, it will not work with version 10.10.
10.10 can be fixed by dropping in a kernel with OSS modules support
fastest way is to get it here: http://vanvalkinburgh.org/blog/3153
install the package and reboot using the custom kernel

alternatively compile your own
How to Recompile Your Ubuntu 10.10 Kernel for Patching or to add Support for a Specific Device
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Old 02-01-2011, 4:23 PM
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Default dsd is this working right?

/dsd-1.4.1/p25p1_const.h
./dsd-1.4.1/configure
./dsd-1.4.1/dsd_frame_sync.c
./dsd-1.4.1/provoice.c
./dsd-1.4.1/dsd_mbe.c
./dsd-1.4.1/Makefile
./dsd-1.4.1/dsd.h
./dsd-1.4.1/nxdn_data.c
./dsd-1.4.1/nxdn_const.h
jason@ubuntu:~/src$ cd dsd-1.4.1/
jason@ubuntu:~/src/dsd-1.4.1$ make
make: Nothing to be done for `all'.
jason@ubuntu:~/src/dsd-1.4.1$ sudo make install
install dsd /usr/local/bin
chgrp uucp /usr/local/bin/dsd
chmod g+s /usr/local/bin/dsd
jason@ubuntu:~/src/dsd-1.4.1$
jason@ubuntu:~/src/dsd-1.4.1$ dsd
Digital Speech Decoder 1.4.1
mbelib version 1.2.3
Audio In/Out Device: /dev/audio
Sync: -NXDN96 mod: QPSK inlvl: 0% VOICE e:======T===
Sync: no sync
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Old 02-01-2011, 5:14 PM
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jason@ubuntu:~$ dsd
Digital Speech Decoder 1.4.1
mbelib version 1.2.3
Audio In/Out Device: /dev/audio
dsd-fn
Sync: -NXDN96 mod: QPSK inlvl: 0% DATA
Sync: no sync
Sync: +DMR mod: QPSK inlvl: 0% [slot0] slot1 Unknown burst type: 1111
Sync: no sync

can i use my bcd396xt
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Old 02-01-2011, 5:27 PM
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jason@ubuntu:~$ dsd
Digital Speech Decoder 1.4.1
mbelib version 1.2.3
Audio In/Out Device: /dev/audio
dsd
dsd-fn
Sync: -X2-TDMA mod: QPSK inlvl: 0% src: 0 tg: 0 [SLOT0] slot1 VOICE e:============R===========R=======E==========R==== =E===
Sync: (-X2-TDMA) mod: QPSK inlvl: 0% src: 0 tg: 0 [slot0] slot1 VOICE e:====R====R=============E==========E========
Sync: no sync
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Old 02-01-2011, 8:07 PM
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Default dsd

i'm there almost! just how to fix the garbleing sound on dsd space -fi nxdn48 [6.25]
or is there another system that they could be on?
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Old 02-01-2011, 8:47 PM
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Default desc tap

i own a bc 72 and 92xlt, sc150 and my newest is the bcd396xt. what one would be the best to mod?
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Old 02-02-2011, 12:20 AM
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you need discriminator audio or else you wont get jack.
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Old 02-02-2011, 12:45 AM
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Is there a list of the - (dash commands)
for the tereminal app..

i want to invert the signal,im getting voice
decoded from DMA-MotoTRBO and P25...
good decode rates,,,anywhere from 1 to 99%
in DSD and allways 80% or more on my radio..

but the audio needs tuning..

cant seem to find a list of those options though...
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Old 02-02-2011, 6:54 AM
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Quote:
all of the commands can be viewed by typing dsd -h
Thanks,knew there was a list Somewhere,,
Cheers!
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Last edited by Unitrunker; 02-07-2011 at 2:27 PM..
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  #30 (permalink)  
Old 02-02-2011, 10:51 AM
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i might buy a beagle board and run ubuntu on it and let it decode all the transmissions!
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Old 02-02-2011, 11:24 AM
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Check these out.

gumstix - dream, design, deliver
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Old 02-02-2011, 3:21 PM
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Quote:
Originally Posted by bowser22 View Post
i might buy a beagle board and run ubuntu on it and let it decode all the transmissions!

DUDE! THAT'S IT!!! That's my solution to run this thing while mobile.

My idea would be to take a beagle board, connect ubuntu on the sd card and configure a cron for dsd to automatically run on startup. Mount it in the trunk of my car next to my BCD996 and tap the 996 into the audio in of the beagle board. Run the audio out to a speaker in the car. So now I'd have provoice while mobile without having to carry my Pro-95 and toughbook with me.

Last edited by nexus; 02-02-2011 at 4:45 PM..
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Old 02-02-2011, 8:06 PM
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Default dsd

i'm in process of dis tap inside the scanner bc 92xlt . I was wondering when done will the scanner still mute the speaker in the scanner, like if you had it put in the headphone jack?
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  #34 (permalink)  
Old 02-02-2011, 11:42 PM
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ahaha yes, i was looking for all sorts of devices to run linux on so i could stay mobile but didnt want to use a full blown machine. I used to have a psr 500 and sold it and now i miss it I want to listen to p25 again but dont want to shell out the big bucks again on a digital scanner! omg! AND PHASE 2 when it hits!!

Last edited by bowser22; 02-02-2011 at 11:45 PM..
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Old 02-03-2011, 12:17 AM
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Quote:
Originally Posted by scankid View Post
i'm in process of dis tap inside the scanner bc 92xlt . I was wondering when done will the scanner still mute the speaker in the scanner, like if you had it put in the headphone jack?
You're creating a separate audio path for the unfiltered discriminator audio. The speaker and headphone jack will work as before.
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Old 02-03-2011, 3:03 AM
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Question NEXEDGE Question

Awesome program. Getting experience on a different operating system at same time. I'm getting a quite exceptional decode on a nearby ProVoice trunked system using a tapped RS PRO-2051 and a dual boot ACER Notebook. But the program doesn't want to decode the Southwest Regional Dispatch's new Kenwood Nexedge system. Before someone jumps to conclusions, the Southwest Regional Dispatch (Dallas County, Texas) is listed on RR as MPT-1327, but they abandoned that system about a year ago, went conventional UHF then changed to this new system. I have tried all the switches listed in the documentation and none of them work. Any suggestions would be appreciated.

Mark
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Old 02-03-2011, 8:10 AM
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when you plug into the 1/8 jack from the dis tap . then into your pc, soundcard. If it is tapped right, you should hear nothing out of the speaker in the scanner, but you should get decoded audio through your pc's speaker's correct? right or wrong? like as if you plugged it into yhe headphone jack. you can't hear nothing in the scanner speaker only pc's speaker's.
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  #38 (permalink)  
Old 02-03-2011, 9:58 AM
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when you have the disc tap plugged in and hooked up, what you hear through the speaker and the disc tap should be the same audio. BUT! the disc audio is more pure without any filtering, your ears might have a hard time noticing it. What would happen for me when i decoded p25 is this. I'd plug in my disc output and sit on a digital talkgroup, when it would come to life i would here some hissing and buzzing out of the scanner side and i knew this was the raw p25 audio, id then run dsd at the same time this audio was coming through and out the other side i would have pure descernable voice! but when i listened to the disc audio at the same time hooked up to an external speaker they would sound the same pretty much.
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Old 02-03-2011, 2:22 PM
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Quote:
Originally Posted by scankid View Post
i'm in process of dis tap inside the scanner bc 92xlt . I was wondering when done will the scanner still mute the speaker in the scanner, like if you had it put in the headphone jack?
only if youve installed the tap drastically incorrectly

the tap runs from the tap point/disc out lug/pad
into a resistor and cap,some just use a resistor.
i use a 10uf cap and anywhere from a 10k to 1k
resistor..

i go overboard and solder to some PCB and add
a disconnect plug cause opening the radio with the
tap hooked to the other half of the case is a pain..

ALSO,,Do Not solder your ground to the BNC area,
find somewhere else..ive noticed severe interference
when i grounded there..

heres a pic of my PSR310 i just tapped..
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Last edited by fourthhorseman; 07-22-2014 at 10:57 AM..
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Old 02-03-2011, 2:25 PM
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Quote:
Originally Posted by bowser22 View Post
when you have the disc tap plugged in and hooked up, what you hear through the speaker and the disc tap should be the same audio. BUT! the disc audio is more pure without any filtering, your ears might have a hard time noticing it. What would happen for me when i decoded p25 is this. I'd plug in my disc output and sit on a digital talkgroup, when it would come to life i would here some hissing and buzzing out of the scanner side and i knew this was the raw p25 audio, id then run dsd at the same time this audio was coming through and out the other side i would have pure descernable voice! but when i listened to the disc audio at the same time hooked up to an external speaker they would sound the same pretty much.

umm,no,you should not hear any voice thru the tap..
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