• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:
    https://forums.radioreference.com/rants/224104-official-thread-live-audio-feeds-scanners-wait-encryption.html

BCD536HP: DMR Reception

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#1
Rather than derail the DMR Public Release thread, I decided to create one for people, myself included, who are having issues with DMR reception.

In my case, I have seen a few hits on the scanner that seem to last as long as a typical transmission, but I don't hear any audio. I can see information displayed on the faceplate (i.e. color code) when they come in, however.

My setup is based on all the guidance I could find through various searches:

- Downloaded and installed new firmware
- Purchased and entered the unlock key.
- Used the digital frequency quick import link: Digital Frequency Quick Import
- Configured appropriate conventional and trunked systems on a separate FL.
- Adjusted digital threshold to manual and 5 as prescribed by various people.
- Squelch is turned almost all the way down.
- I can see signal strength ranging from 1-3 bars on some of the systems being monitored.
- Linked scanner to Proscan so I can go back and review any hits that come in while I'm away.

Can anyone think of something that I could have missed?
 

IAmSixNine

Member
Premium Subscriber
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Dec 19, 2002
Messages
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Location
Dallas, TX
#2
I would suggest adding in a location so if someone needs to help you via radioreference they would have a place to start.
Also might help if you are in search mode to list if your seeing CON, DMR, CAP.
Keep in mind CON has a steady control channel transmitting so you will see info but hear no voice.
 
Joined
Mar 31, 2008
Messages
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#3
So, I went to a known frequency in quick search mode, and I could hear the typical DMR sound signature that I've heard with my SDR setup. I did note that the display showed DMR and S1 when a transmission was received. I also noticed that S1 would flash from time to time with no audio.

Thoughts?
 

troymail

Silent Key
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Dec 19, 2002
Messages
9,977
Location
Supply (Lockwood Inlet area), NC
#4
Couple of thoughts:

- programmed as conventional frequencies, the radio will stop on control, idle, or other data activity on a frequency but you may or may not hear voice because there isn't any voice being transmitted

- if the voice signal is weak or noisy, the radio won't process it correctly and all you may hear is digital noise
 
Joined
Sep 11, 2002
Messages
1,047
#5
Also I have found on simplex systems that you may need to program the shannel as a one channel system so that you can enter in the Talk group. I have many simples (no repeater) users locally and I have foung programming them as a one channel system and then doing a "discovery" on them locates the Talkgroup. Once that is entered into the department information reception is 100%.
 
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